US20020104929A1 - Universal support and vibration isolator - Google Patents
Universal support and vibration isolator Download PDFInfo
- Publication number
- US20020104929A1 US20020104929A1 US10/007,312 US731201A US2002104929A1 US 20020104929 A1 US20020104929 A1 US 20020104929A1 US 731201 A US731201 A US 731201A US 2002104929 A1 US2002104929 A1 US 2002104929A1
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- Prior art keywords
- support
- support members
- frame
- pipe
- rotating
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- Abandoned
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
- F16L3/1008—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members engaging the pipe, cable or tubing, both being made of thin band material completely surrounding the pipe
- F16L3/1016—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members engaging the pipe, cable or tubing, both being made of thin band material completely surrounding the pipe the members being joined by means of two screws
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
- F16L3/1033—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing with two members engaging the pipe, cable or tubing, the two members being joined only on one side of the pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L7/00—Supporting of pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
Definitions
- This invention relates to supports and, more specifically, to supports, clamps, mounting and positioning devices, protectors, and vibration isolators designed for pipes, motors, and other objects, including objects with solid cross-sections such as rotating drills and drive shafts.
- Piping systems in buildings and commercial installations are often anchored to the building structure.
- Such piping systems are subject to various forces that may cause movement or vibration in the pipes and damage the piping system or the anchors that hold the pipes.
- the noise generated by such vibration may be irritating to people within the building.
- Some of the events that cause movement in a piping system are earthquakes, temperature induced expansion and contraction, objects impacting the piping system, changes in the temperature, pressure, composition, turbulence or other flow conditions of the contents of the piping system, and rotations of the pipes or pipe connectors.
- a support is provided for securing pipes or other objects within the support and isolating shock and vibration generated or transmitted by the object or its environment.
- the support and isolator of the present invention may be referred to as either a support or an isolator, without necessarily implying the absence of the feature not named.
- the invention generally is described with reference to a specific embodiment comprising a pipe support, i.e., a support for a generally stationary object of hollow cross-section.
- a pipe support i.e., a support for a generally stationary object of hollow cross-section.
- the invention is not limited to this embodiment.
- the supported object may be solid in cross-section.
- the supported object may be capable of rotating or sliding within its support.
- the support itself may be capable of rotating or sliding relative to an enclosing structure.
- the support may be capable of rotating or sliding relative to an enclosure while the support is clamped securely to a rotating or sliding object.
- a support that comprises a frame and a plurality of support members within the frame.
- the support includes means for supporting each of the plurality of members at a minimum of two contact points.
- the support also includes means for rotating each of the support members at a first contact point with respect to a second contact point so that the support members engage an object placed within the support.
- a support that comprises a frame and a plurality of support members within the frame.
- the support includes means for supporting each of the plurality of members at a minimum of two contact points.
- the support also includes means for rotating each of the support members at a first contact point with respect to a second contact point so that the support members engage a bearing surface containing a rotating object placed within the support.
- a support that comprises a frame and a plurality of support members within the frame.
- the frame contains a bearing surface, wheels or other rotating slidable means on its outer surface so that it may rotate and slide within a outer circular confinement.
- the rotating, slidable means allows the frame both to rotate and slide within an outer support pipe.
- the support also includes means for rotating each of the support members at a first contact point with respect to a second contact point so that the support members engage a rotating object placed within the support.
- a pipe support in accordance with another aspect of the present invention, includes a frame capable of being placed around an existing pipe and a plurality of support members within the frame.
- the pipe support includes means for supporting each of the plurality of members at a minimum of two contact points.
- the pipe support also includes means for rotating each of the support members at a first contact point with respect to a second contact point so that the support members engage a pipe placed within the pipe support.
- a method of securing a pipe is provided. Using a pipe support in accordance with the present invention, the pipe support is placed around a pipe. Then, the means for rotating the support members are rotated to secure the pipe in the support members.
- a method of isolating vibration in a pipe is provided.
- the pipe support is placed around a pipe.
- the means for rotating the support members are rotated to secure the pipe such that any vibration occurring in or transmitted by the pipe is isolated by the plurality of support members.
- the present invention offers numerous advantages.
- the support is easily attached to a pipe or other object and can be used to secure an object as well as isolate vibration occurring in or transmitted by the object.
- One or more supports may be used for a single object to ease of installation, reduce inventory, or accommodate the configuration of a supported object.
- the frequency response of the support may be adjusted to the particular vibration conditions associated with the object.
- the support allows for adjustment of the clamping pressure that the support holds the object with.
- the support also automatically centers an object when the support members are engaged.
- the orientation of an object may be adjusted with respect to the frame once the object is secured by the support, a feature that is not available in other supports.
- the support may secure a sliding or rotating object while the support independently slides or rotates within an enclosure.
- FIG. 1A is a side view of one embodiment of a pipe support in accordance with the present invention.
- FIG. 1B is an end view of the exterior of a case end of the embodiment illustrated in FIG. 1.
- FIG. 1C is a end view of the embodiment illustrated in FIG. 1.
- FIG. 1D is an end view of the embodiment illustrated in FIG. 1 shown with the support rods inserted through the case end and twisted into a support position.
- FIG. 1E is a side view of the embodiment of FIG. 1 shown with a pipe placed into the pipe support.
- FIG. 1F illustrates the angles between the bearing points and the center of the pipe support in various embodiments having different numbers of support rods, an embodiment having concentric rings, and an embodiment using a clamshell design.
- FIG. 1G is an end view of a section of a case end of another embodiment of the invention using a clamshell case construction.
- FIG. 2 a is an end view of mating sections of a case end of the embodiment of FIG. 1G showing both halves of the clamshell case construction.
- FIG. 2 b is an end view of the embodiment of FIG. 1G shown with the case end sections fastened together and support rods and a pipe held therein.
- FIG. 2 c is a top view showing right and left case portions of the embodiment of FIG. 1G.
- FIG. 3 is a side view of the embodiment of FIG. 1G.
- FIG. 4 is a top view of the embodiment of FIG. 1G illustrating a frequency calibration feature.
- FIG. 4 a is an end view of a flexible, split end cap shown in FIG. 4.
- FIG. 4 b is a side view of an alternative flexible end cap.
- FIG. 5 is a cross section of an alternative embodiment having a different clamshell case construction.
- FIG. 6 is a top view of the case of the embodiment of FIG. 5.
- FIG. 6 a is the end view of a section of the case of the embodiment of FIG. 5.
- FIG. 6 b is an end view showing the mating sections of the case of the embodiment of FIG. 5 fastened together.
- FIG. 7 a is a top view of a case of an alternative embodiment of the present invention.
- FIG. 7 b is a side view of the case of the embodiment of FIG. 7 a.
- FIG. 7 c is an end view of the case of the embodiment of FIG. 7 a.
- FIG. 8 a is a bottom cross sectional view of an alternative embodiment of the present invention.
- FIG. 8 b is a top view of the case of the embodiment of FIG. 8 a.
- FIG. 9 a is a side cross sectional view of the right cap of the embodiment of FIG. 8 a.
- FIG. 9 b is an end cross sectional view of the cap shown in FIG. 9 a.
- FIG. 9 c is a top view of a portion of the cap of FIG. 9 a shown with the teeth on the cap.
- FIG. 9 d is a side cross sectional view of an alternative embodiment of the present invention illustrating a frequency adjustment mechanism.
- FIG. 9 e is a side view of an alternative end cap allowing for frequency adjustment.
- FIG.10 a is a side view of a portion of an alternative embodiment of the present invention using bearing inserts.
- FIG. 10 b is a front view of the bearing insert shown in FIG. 10.
- FIG. 11 a is a side view of the case of an alternative embodiment of the present invention using a clamshell case construction.
- FIG. 11 b is an end view of the securing nut of the case of the embodiment of FIG. 11 a.
- FIG. 12 a is a front view of a bearing disc in accordance with the present invention.
- FIG. 12 b is a front view of an alternative embodiment of a bearing disc in accordance with the present invention.
- FIG. 13 a is a front view of an alternative embodiment of a bearing insert in accordance with the present invention.
- FIG. 13 b is a front view of an alternative embodiment of a bearing insert in accordance with the present invention.
- FIG. 14 is an enlarged side view of the bearing surface of the bearing disc shown in FIG. 12 a.
- FIG. 15 a is an end view of an alternative embodiment of a pipe support according to the present invention suitable for large scale applications.
- FIG. 15 b is a side view of the left portion of the case of the embodiment of FIG. 15 a.
- FIG. 15 c is a side view of the right portion of the case of the embodiment of FIG. 15 a.
- FIG. 15 d is a top cross sectional view of the embodiment of FIG. 15 a.
- FIG. 15 e is an end view of a portion of the embodiment of FIG. 15 a showing means for rotating the support members.
- FIG. 16 a is an end view of an alternative embodiment of a pipe support according to the present invention suitable for large scale applications.
- FIG. 16 b is a side view of the case of the embodiment of FIG. 16 a.
- FIG. 16 c is a top view of the case of the embodiment of FIG. 16 a.
- FIG. 16 d is an end view of a portion of the embodiment of FIG. 16 a showing means for rotating the support members.
- FIG. 17 a is a side view of a portion of an alternative embodiment of the present invention shown with a bearing insert and a retainer plate.
- FIG. 17 b is a view taken along line B-B of FIG. 17 a showing the bearing insert.
- FIG. 17 c is a view taken along line A-A of FIG. 17 a showing the retainer plate.
- FIG. 18 is a front view of a bearing point in accordance with the present invention shown with friction reducing bearing means.
- FIG. 19 is a front view of the bearing point of FIG. 18.
- FIG. 20 is a front view of an end cap or bearing insert with bearing points as illustrated in FIG. 18.
- FIG. 21 a is a simplified view of an isolator of the present invention inside an enclosure.
- FIG. 21 b is a top view of an isolator of the present invention capable of rotating or sliding with an enclosure.
- FIG. 21 c is a side view of the isolator of FIG. 21 b.
- a support 10 is provided for supporting pipes, clamping pipes, isolating pipes from the environment, and/or isolating shock and vibration from pipes. While the illustrated embodiments of the present invention are particularly adapted for use with pipes, it is noted that the present invention can be used with any other object or group of objects placed within the support 10 , such as, for example, distribution means, electric cable, and motors or portions of motors.
- One or multiple supports 10 may be used to support an object, clamp an object, and/or isolate vibration associated with an object.
- the object may be provided with bearing means so that it may rotate and that the support frame may be provided with rotating, slidable means so that it might itself rotate and slide within an enclosing structure.
- bearing means so that it may rotate
- support frame may be provided with rotating, slidable means so that it might itself rotate and slide within an enclosing structure.
- a pipe support 10 includes a frame or case 12 and support members 14 .
- the case 12 is used to house the support members 14 , and is placed around an object or group of objects, such as, for example, a pipe 16 .
- the case 12 is preferably a cylinder that can be placed around the longitudinal axis of a pipe 16 .
- the case may comprise a left cap or end 18 A and a right cap or end 18 B, with at least one end 18 A, 18 B, being rotatable relative to the case 12 and the other end 18 A, 18 B.
- the case 12 also may be divided longitudinally into left and right portions 19 A, 19 B, as shown in FIGS. 3 and 4.
- One case portion 19 A, 19 B may be rotatable relative to the other portion 19 A, 19 B.
- the case portions 19 A, 19 B may be connectable in a fixed position relative to one another and a rotatable end 18 A, 18 B provided on one of the case portions 19 A, 19 B.
- the case 12 also may be divided laterally into upper 21 A and lower 21 B sections.
- the sections 21 A, 21 B are preferably half-cylinders, but those skilled in the art will recognize that other shaped sections that are not equal halves or are not portions of a cylinder may be used in the present invention.
- the sections 21 A, 21 B may be secured by fastening the two half-cylinders together with fastening means such as screws or bolts 20 or a pipe clamp (not shown).
- such a case 12 may also be secured using hinges 22 and a fastener 24 , which may be a snap clamp, pipe clamp, other quick fastener, bolt, or screw.
- FIG. 11 a and 11 b shown the use of a split nut 37 to secure a case with continuous exterior threads 35 on the exterior of the case 12 .
- Forming the case 12 from two sections 21 A, 21 B advantageously allows the pipe support 10 to be placed over an existing pipe 16 without any disassembly of the pipe structure. It also allows the pipe support 10 to be placed around a new pipe section without threading the pipe through the support.
- the case may be divided into left and right portions 19 A, 19 B, each of which in turn is divided into upper and lower sections 21 A, 21 B, as shown, for example, in FIGS. 2 c, 3 and 4 .
- the case 12 may be divided into left and right portions 19 A, 19 B, each of which in turn is divided into upper and lower sections 21 A, 21 B, as shown, for example, in FIGS. 2 c, 3 and 4 .
- other designs of the case 12 such as, for example, cases 12 having different geometries, can be used in the present invention.
- the case 12 may define a lateral slot or opening such that the case 12 does not completely enclose the object to be supported.
- a half cylinder could be used as a case 12 in this embodiment and a pipe 16 could be placed on support members 14 connected to the case 12 .
- the support 10 would act as a support and a vibration isolator but, in some designs, may not function as a clamp. Cases having other configurations that partially enclose the object to be supported also are within the scope of the invention.
- the support members 14 are preferably rods 14 that are placed within the case 12 and around the item, such as a pipe 16 , to be supported.
- the cross section of the rods 14 may be round or may be any other shape, and the cross section of the rods 14 may be the same throughout a rod's length or may vary, such as in a tapered rod.
- the rods 14 may be straight, bent, or curved.
- the support members 14 are preferably solid, flexible rods made from metal or other suitable material, such as a polymer or composite.
- the support members 14 are formed from a pultruded composite, such as, for example, a pultruded fiberglass/polyester resin composite. If desired, the rods 14 may exhibit elastic properties.
- the pipe support 10 preferably includes bearing points 26 at each end of the case 12 .
- the bearing points 26 may be part of the case 12 or may be included on bearing inserts or rings 28 attached near each end of the case 12 , as shown in FIG. 10 a.
- the bearing inserts 28 may be secured within the case 12 by notches on the inserts 28 that engage grooves provided on the inner surface of the case 12 , as shown in FIGS. 10 a and 10 b.
- the use of separate bearing inserts 28 allows a case 12 to be used with rods 14 of varying sizes or positions.
- a bearing surface 29 of the bearing points 26 may be flat, curved, concave, convex, or any other shape.
- the rods 14 engage the bearing surfaces 29 of the bearing points 26 .
- FIG. 1A shows a bearing point 26 having a beveled bearing surface 29 to accommodate the movement of rods 14 resulting from rotation of a case end 18 A, 18 B, as shown in FIG. 1D.
- the rods 14 are not restrained and are free to slide on the bearing points 26 as shown in FIG. 1D.
- the rods 14 may include end stops 27 so that the rods 14 cannot pass through the bearing points 26 of the case end 18 A, 18 B, as shown in FIG. 1C.
- the support rods 14 preferably are long enough that the ends of the rods 14 extend beyond the bearing points 26 when the rods 14 are twisted about the pipe 16 to clamp the pipe 16 and isolate vibration occurring in or transmitted by the pipe 16 , as more fully discussed below.
- the case 12 or ends 18 A, 18 B may include a restraining end or cap 32 to limit the linear movement of the rods 14 inside the case 12 between the bearing points 26 .
- the restraining ends or caps 32 may be used in conjunction with the end stops 27 or as an alternative to the end stops 27 .
- the end caps 32 may be integrally formed with the case ends 18 A, 18 B.
- the end caps 32 may be formed from a flexible material, such as rubber, as shown in FIG. 4 b.
- a flexible end cap 32 also may be split, as shown in FIG. 4 a, to allow the cap 32 to be installed on an existing pipe.
- Other means to restrict the lateral movement of the rods 14 such as, for example, a hydraulic stop 81 or a spring stop 82 , may also be used with the present invention.
- the end caps 32 may protect the rod ends from mechanical damage or prevent other objects from catching or collecting on the rod ends during use.
- the support members 14 may be elastic members that are attached to the case 12 or to the bearing points 26 in a fixed position (not shown in the drawings). When first ends of such elastic support members 14 are rotated with respect to second ends, as more fully discussed below, the elastic support members 14 stretch to contact and grip the object placed between them. It will be recognized by those skilled in the art that other materials may also be used for the material of the support members 14 .
- the bearing points 26 may include friction reducing means such as, for example, ball bearings, roller bearings, or lubricant fittings.
- FIGS. 18 - 20 illustrate a bearing point 26 having friction reducing means that comprise an inner piece 50 rotatably connected about a first axis to an outer piece 52 that is attached to the case 12 or a bearing insert 28 .
- a third piece 54 is rotatably connected to the inner piece 50 about a second axis that is substantially parallel to the first axis.
- a support member 14 is connected to the third piece 54 so that the support member 14 is rotatable in all directions with respect to the case 12 . This allows the support members 14 to be rotated about a pipe 16 without producing friction in the bearing points 26 .
- FIGS. 12 a, 12 b, 13 a, and 13 b illustrating alternative embodiments, the bearing points 26 could be positioned symmetrically or asymmetrically, could be positioned in multiple rings, or could be positioned as points in other geometric patterns.
- FIG. 1F shows the angles between the bearing points 26 and the center of the case 12 in various embodiments.
- the bearing points 26 could be placed in bearing inserts 28 or directly in the case 12 .
- the shape of the case 12 may also be varied to correspond with the shape of the bearing points 26 or bearing inserts 28 .
- FIGS. 17 a and 17 b when a case 12 comprising two halves is used, a bearing insert 28 may also be divided into two halves in order to allow the pipe support 10 to be placed around a pipe 16 without disassembling or cutting the pipe 16 .
- the case 12 may comprise a right end 18 B or portion 19 B that is rotatable with respect to a left portion 19 A. As the right end 18 B or portion 19 B is rotated, the bearing points 26 within the right end 18 B or portion 19 B are rotated with respect to the bearing points 26 within the left portion 19 A. This rotation of the bearing points 26 rotates one end of each support member 14 with respect to the other end so that the support members 14 will contact an object in between them.
- FIGS. 17 a - 17 c illustrate an alternative embodiment of the invention using a bearing insert 28 that may be rotated with the use of a key (not shown) designed to fit into a keyhole 5 of the bearing insert 28 so that the bearing points 26 in the bearing insert 28 (and therefore the support members 14 held by the bearing points 26 ) are rotatable.
- the case 12 may include a right end 18 B (shown in FIGS.
- teeth 32 that interlock with a ratchet clip 34 on the inside of the case 12 to secure the rotational position of the right end 18 B of the case 12 with respect to the left end 18 A of the case 12 .
- the spacing of the teeth 32 may be calibrated to provide preset intervals for rotational tensioning. It will also be recognized by those skilled in the art that other means for securing the rotational position of one end or portion of the case 12 with respect to the other are included in the present invention.
- the support members 14 when straight support members 14 are used, the support members 14 preferably define an initial position that is substantially parallel to the pipe 16 .
- first ends of the support members 14 rotate with respect to second ends of the support members 14 so that the support members 14 will contact an object within the support members 14 .
- the length of a support member 14 in between two bearing points 26 increases as a bearing point 26 at one end of the case 12 rotates with respect to a bearing point 26 at the other end of the case 12 .
- the support members 14 are rods 14 as shown in FIG. 1E, the ends of the rods 14 move closer to the bearing points 26 as the rods 14 are rotated.
- the support members 14 are elastic members 14 connected to the bearing points 26 , the elastic members 14 stretch as they are rotated about an object.
- rods 14 when rods 14 are used, the rods 14 have a nonlinear response to the force applied to bend the rods 14 as the length of the rods 14 supported in between the bearing points 26 is increased. Less force is needed to bend the rods 14 as the length of the rods 14 bent through the bearing points 26 is increased. This is in contrast to the linear response from a spring, where the force required to depress the spring per unit distance is constant.
- the support members 14 contact the pipe 16 to achieve a support position where the support members 14 act as a cradle for the pipe 16 .
- the amount the support members 14 are rotated, which is preferably adjustable, will determine how tightly the pipe 16 is held between the support members 14 .
- the pipe support 10 acts as a clamp, gripping and securing the pipe 16 .
- the pipe support 10 also may act as a vibration isolator to isolate any vibrations or shocks that the pipe 16 may receive or transmit.
- the case 12 of the pipe support 10 may also act to protect and insulate the pipe 16 from elements outside of the case 12 .
- the support members 14 When the first ends of the support members 14 are rotated with respect to the second ends of the support members 14 , the support members 14 contact an object in between them and, depending upon the composition of the support members 14 in a specific embodiment and the amount that the support members 14 are rotated, the support members 14 may bend about the object as the support members 14 are rotated.
- a symmetrical object such as a pipe 16 is engaged by the support 10
- the area of each support member 14 contacting the pipe 16 will be substantially similar.
- the support members 14 will preferably contact the pipe 16 so that the longitudinal axis of the pipe 16 can be pivoted with respect to the longitudinal axis of the case 12 .
- the support members 14 will also preferably contact the pipe 16 in a way that allows the pipe 16 to be rotated about its longitudinal axis while also providing resistance against lateral movement of the pipe 16 .
- These advantageous features allow the pipe support 10 to support the pipe 16 and provide vibration isolation to the pipe 16 when the longitudinal axes of the case 12 and the pipe 16 are not parallel. These advantageous features also allow for some movement or adjustment of the pipe 16 after the pipe 16 is engaged by the support 10 .
- the pipe support 10 may also include means 36 for adjusting the frequency response of the support members 14 to vibration generated or transmitted by the pipe 16 when vibration is isolated by the support members 14 .
- means 36 for adjusting the frequency response of the support members 14 may comprise a case 12 that has a right portion 19 B that is slidable within a left portion 19 A so that the distance between the bearing points 26 may be changed.
- the inner portion 19 B may be provided with graduated markings calibrated to particular frequency adjustment intervals or presets.
- an end cap 32 and case 18 B may be provided with a ratchet slide clip that provides adjustment of the frequency response by moving the end cap relative to the case to change the distance between the bearing points 26 .
- Another means 36 to adjust the frequency response of the support members 14 is illustrated in FIGS. 11 a and 11 b.
- the alternative embodiment includes threads 35 on outside of the left portion 19 A and a hinged, split nut 37 adjustably clamping the right portion 19 B within the left portion 19 A so that the distance between the bearing points 26 is adjustable.
- the pipe support 10 may further include a hanger 40 attached to the case 12 to attach the pipe support 10 at a fixed point to another object.
- the hanger 40 may be any connector used to attach the case 12 to another object, such as, for example, clamp brackets, bolts, screws, wires or straps.
- the support members 14 are inserted into the bearing points 26 after the case 12 is placed around an object so that there is no need to rotate the bearing points 26 or support members 14 .
- the individual support members 14 contact the pipe 16 when they are inserted through two bearing points 26 on opposite sides of the case 12 .
- FIG. 21 a shows another embodiment of the invention in which the isolator 90 is itself capable of rotating or sliding within a generally cylindrical enclosure 92 , such as a pipe.
- FIG. 21 a is a top view of the isolator 90 including includes a frame 94 capable of being secured to a rotating object 96 and a plurality of support members 98 within the frame 94 .
- the isolator 90 also includes means 100 for supporting each of the plurality of support members 98 at a minimum of two points and rotating each of the support members 98 at a first contact point with respect to a second contact point so the support members engage an object 96 placed within the frame 94 .
- Contact means 102 are attached to an outer surface of the frame 94 to allow the frame 94 to rotate and slide within the enclosure 92 .
- the contact means 102 may be bearings, casters, wheels, or other suitable structures that engage the interior diameter of the enclosure 92 in a way that allows the frame 94 to rotate or slide relative to the enclosure 92 .
- the enclosure 92 may be provided with an interior bearing sleeve, not shown in the drawings, that slidably engages the exterior of the frame 94 ..
- FIGS. 15 a, 15 b, 15 c, 15 d, 15 e, 16 a, 16 b, 16 c, and 16 d illustrate an alternative embodiment of the invention that is suitable for large scale applications.
- the alternative embodiment includes a case 12 that comprises a left portion 19 A and a right portion 19 B, as well as an upper section 21 A and a lower section 21 B.
- the right portion 19 B is secured to the left portion 19 A by circular restraint notches 60 on the left portion 19 A and circular restraint grooves 62 on the right portion 19 B.
- the upper section 21 A is secured to the lower section 21 B by bolts 64 .
- various means for rotating first ends of the support members 14 with respect to the second ends of the support members 14 may be used in the alternative embodiment.
- FIG. 15 e illustrates holes 66 on the right end 18 B that cooperate with a tool (not shown) to rotate the right portion 19 B with respect to the left portion 19 A.
- FIGS. 15 e illustrates holes 66 on the right end 18 B that cooperate with a tool (not shown) to rotate the right portion 19 B with respect to the left portion 19 A.
- FIGS. 16 b, 16 c, and 16 d illustrate a removable tool 68 for rotating the right portion 19 B or end with respect to the left portion 19 A.
- FIGS. 16 b, 16 c, and 16 d illustrate a geared periphery 70 of the right end 18 B that interacts with the tool 68 .
- a lock 72 and/or a ratchet stop 74 is used to secure the rotational position of the right portion 19 B with respect to the left portion 19 A.
- FIGS. 16 a and 16 b also illustrate a base 76 that may be used with larger supports 10 . The rotation to adjust the tension may be accomplished manually or with the assistance of mechanical, hydraulic, or other suitable devices.
- the present invention also includes a method for supporting a pipe (or other object or group of objects), a method of isolating vibration in a pipe (or other object or group of objects), a method of protecting a pipe (or other object or group of objects), and a method of leveling a pipe (or other object or group of objects).
- a pipe 16 (or other object or group of objects) may be supported, clamped, isolated from vibration, and/or protected from elements outside of the case 12 by placing the pipe 16 within the pipe support 10 and rotating the support members 14 to engage and grip the pipe 16 .
- the support 10 may also be used to level a pipe 16 or other object because the support members 14 center an object such as a pipe 16 within the support 10 when the support members 14 are caused to engage the object.
- the method of isolating vibration in an object or group of objects in accordance with the present invention may be used to control vibration in systems such as, for example, a motor, that produce vibrations.
- a pipe, rod, or other object is attached to the vibrating system and a support 10 in accordance with the present invention is attached to the pipe, rod, or other object.
- the support 10 isolates vibration in the pipe, rod, or other object and in turn isolates vibration occurring in the vibrating system.
- the invention provides a method of isolating vibration in a rotating object which is provided with bearing means for engaging the support.
- the method includes the steps of providing a support comprising a frame capable of being placed around a rotating object, a plurality of support members within the frame, means for supporting each of the plurality of support members at a minimum of two points, and means for rotating each of the support members at a first contact point with respect to a second contact point so the support members engage the bearing means associated with the rotating object; placing the frame around the object and its bearing means; and turning the rotating means to cause the support members to engage the bearing means associated with the rotating object.
- the support members may be provided with bearing means for engaging the rotating object.
- the invention also provides a method for securing a rotating object while the support independently rotates within a generally cylindrical enclosure.
- the method includes the steps of providing a support comprising a frame capable of being secured to a rotating object, a plurality of support members within the frame, means for supporting each of the plurality of support members at a minimum of two points, means for rotating each of the support members at a first contact point with respect to a second contact point so the support members engage a rotating object placed within the frame, and contact means attached to an outer surface of the frame that allow the frame to rotate and slide within a generally cylindrical enclosure, such as a pipe; placing the frame around the rotating object; turning the rotating means to cause the support members to engage the rotating object and secure it within the frame; and placing the frame within an enclosure.
- the contact means may be bearings, casters, wheels, or other suitable structures that engage the interior diameter of the enclosure in a way that allows the frame to rotate or slide relative to the enclosure.
- the enclosure may be provided with an interior bearing sleeve, not shown in the drawings, that slidably engages the exterior of the frame.
- the method also provides a method for isolating vibration from a vibrating object such as a motor.
- the method includes the steps of providing an isolator support comprising a frame capable of being placed around contacting supports attached to the vibrating object, a plurality of support members within the frame, means for supporting each of the plurality of support members at a minimum of two points, and means for rotating each of the support members at a first contact point with respect to a second contact point so the support members engage the contacting supports; placing the isolator support around the contacting supports; and turning the rotating means to cause the support means to engage the contacting supports.
- one or more isolators may be used, with additional isolators engaging additional contacting supports attached to the vibrating object.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Supports For Pipes And Cables (AREA)
- Vibration Prevention Devices (AREA)
- Pipe Accessories (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
A pipe support is provided that includes a frame capable of being placed around an existing pipe and a plurality of support members within the frame. The frame is a hollow cylinder that includes two connectable halves divided along the diameter of the hollow cylinder. The pipe support includes two bearing rings connected to the frame for supporting each of the plurality of members at a minimum of two contact points. Each of the two bearing rings include bearing points for each support member arranged in a cylindrical pattern concentric with the hollow cylinder frame. The pipe support includes means for rotating each of the support members at a first contact point with respect to a second contact point so that the support members engage a pipe placed within the pipe support. The support members are rods that provide vibration isolation to a pipe placed within the pipe support.
Description
- This application claims priority under United States provisional patent application No. 60/247,290, filed Nov. 10, 2000.
- This invention relates to supports and, more specifically, to supports, clamps, mounting and positioning devices, protectors, and vibration isolators designed for pipes, motors, and other objects, including objects with solid cross-sections such as rotating drills and drive shafts.
- Piping systems in buildings and commercial installations, such as factories, refineries, and chemical plants, are often anchored to the building structure. Such piping systems are subject to various forces that may cause movement or vibration in the pipes and damage the piping system or the anchors that hold the pipes. The noise generated by such vibration may be irritating to people within the building. Some of the events that cause movement in a piping system are earthquakes, temperature induced expansion and contraction, objects impacting the piping system, changes in the temperature, pressure, composition, turbulence or other flow conditions of the contents of the piping system, and rotations of the pipes or pipe connectors.
- Other systems in building, commercial installations, and the like, also may be subject to forces that may cause unwanted or damaging movement or vibration of the systems. Conversely, if the systems include nonstatic elements, such as a rotating drill or drive shaft, the systems may themselves generate forces that cause unwanted or damaging movement or vibration of the structures that anchor or retain the systems in position.
- In accordance with the present invention, a support is provided for securing pipes or other objects within the support and isolating shock and vibration generated or transmitted by the object or its environment. For convenience, the support and isolator of the present invention may be referred to as either a support or an isolator, without necessarily implying the absence of the feature not named.
- The invention generally is described with reference to a specific embodiment comprising a pipe support, i.e., a support for a generally stationary object of hollow cross-section. However, as described further below, the invention is not limited to this embodiment. It is understood that the supported object may be solid in cross-section. The supported object may be capable of rotating or sliding within its support. The support itself may be capable of rotating or sliding relative to an enclosing structure. In some application, the support may be capable of rotating or sliding relative to an enclosure while the support is clamped securely to a rotating or sliding object.
- In accordance with one aspect of the present invention, a support is provided that comprises a frame and a plurality of support members within the frame. The support includes means for supporting each of the plurality of members at a minimum of two contact points. The support also includes means for rotating each of the support members at a first contact point with respect to a second contact point so that the support members engage an object placed within the support.
- In accordance with another aspect of the present invention, a support is provided that comprises a frame and a plurality of support members within the frame. The support includes means for supporting each of the plurality of members at a minimum of two contact points. The support also includes means for rotating each of the support members at a first contact point with respect to a second contact point so that the support members engage a bearing surface containing a rotating object placed within the support.
- In accordance with another aspect of the invention, a support is provided that comprises a frame and a plurality of support members within the frame. The frame contains a bearing surface, wheels or other rotating slidable means on its outer surface so that it may rotate and slide within a outer circular confinement. The rotating, slidable means allows the frame both to rotate and slide within an outer support pipe. The support also includes means for rotating each of the support members at a first contact point with respect to a second contact point so that the support members engage a rotating object placed within the support.
- In accordance with another aspect of the present invention, a pipe support is provided that includes a frame capable of being placed around an existing pipe and a plurality of support members within the frame. The pipe support includes means for supporting each of the plurality of members at a minimum of two contact points. The pipe support also includes means for rotating each of the support members at a first contact point with respect to a second contact point so that the support members engage a pipe placed within the pipe support.
- In accordance with yet another aspect of the invention, a method of securing a pipe is provided. Using a pipe support in accordance with the present invention, the pipe support is placed around a pipe. Then, the means for rotating the support members are rotated to secure the pipe in the support members.
- In accordance with yet a further aspect of the invention, a method of isolating vibration in a pipe is provided. Using a pipe support in accordance with the present invention, the pipe support is placed around a pipe. Then, the means for rotating the support members are rotated to secure the pipe such that any vibration occurring in or transmitted by the pipe is isolated by the plurality of support members.
- The present invention offers numerous advantages. The support is easily attached to a pipe or other object and can be used to secure an object as well as isolate vibration occurring in or transmitted by the object. One or more supports may be used for a single object to ease of installation, reduce inventory, or accommodate the configuration of a supported object. The frequency response of the support may be adjusted to the particular vibration conditions associated with the object. The support allows for adjustment of the clamping pressure that the support holds the object with. The support also automatically centers an object when the support members are engaged. The orientation of an object may be adjusted with respect to the frame once the object is secured by the support, a feature that is not available in other supports. In addition, the support may secure a sliding or rotating object while the support independently slides or rotates within an enclosure.
- Still other benefits and advantages of the invention will become apparent to those skilled in the art to which it pertains upon a reading and understanding of the following detailed specification.
- FIG. 1A is a side view of one embodiment of a pipe support in accordance with the present invention.
- FIG. 1B is an end view of the exterior of a case end of the embodiment illustrated in FIG. 1.
- FIG. 1C is a end view of the embodiment illustrated in FIG. 1.
- FIG. 1D is an end view of the embodiment illustrated in FIG. 1 shown with the support rods inserted through the case end and twisted into a support position.
- FIG. 1E is a side view of the embodiment of FIG. 1 shown with a pipe placed into the pipe support.
- FIG. 1F illustrates the angles between the bearing points and the center of the pipe support in various embodiments having different numbers of support rods, an embodiment having concentric rings, and an embodiment using a clamshell design.
- FIG. 1G is an end view of a section of a case end of another embodiment of the invention using a clamshell case construction.
- FIG. 2a is an end view of mating sections of a case end of the embodiment of FIG. 1G showing both halves of the clamshell case construction.
- FIG. 2b is an end view of the embodiment of FIG. 1G shown with the case end sections fastened together and support rods and a pipe held therein.
- FIG. 2c is a top view showing right and left case portions of the embodiment of FIG. 1G.
- FIG. 3 is a side view of the embodiment of FIG. 1G.
- FIG. 4 is a top view of the embodiment of FIG. 1G illustrating a frequency calibration feature.
- FIG. 4a is an end view of a flexible, split end cap shown in FIG. 4.
- FIG. 4b is a side view of an alternative flexible end cap.
- FIG. 5 is a cross section of an alternative embodiment having a different clamshell case construction.
- FIG. 6 is a top view of the case of the embodiment of FIG. 5.
- FIG. 6a is the end view of a section of the case of the embodiment of FIG. 5.
- FIG. 6b is an end view showing the mating sections of the case of the embodiment of FIG. 5 fastened together.
- FIG. 7a is a top view of a case of an alternative embodiment of the present invention.
- FIG. 7b is a side view of the case of the embodiment of FIG. 7a.
- FIG. 7c is an end view of the case of the embodiment of FIG. 7a.
- FIG. 8a is a bottom cross sectional view of an alternative embodiment of the present invention.
- FIG. 8b is a top view of the case of the embodiment of FIG. 8a.
- FIG. 9a is a side cross sectional view of the right cap of the embodiment of FIG. 8a.
- FIG. 9b is an end cross sectional view of the cap shown in FIG. 9a.
- FIG. 9c is a top view of a portion of the cap of FIG. 9a shown with the teeth on the cap.
- FIG. 9d is a side cross sectional view of an alternative embodiment of the present invention illustrating a frequency adjustment mechanism.
- FIG. 9e is a side view of an alternative end cap allowing for frequency adjustment.
- FIG.10a is a side view of a portion of an alternative embodiment of the present invention using bearing inserts.
- FIG. 10b is a front view of the bearing insert shown in FIG. 10.
- FIG. 11a is a side view of the case of an alternative embodiment of the present invention using a clamshell case construction.
- FIG. 11b is an end view of the securing nut of the case of the embodiment of FIG. 11a.
- FIG. 12a is a front view of a bearing disc in accordance with the present invention.
- FIG. 12b is a front view of an alternative embodiment of a bearing disc in accordance with the present invention.
- FIG. 13a is a front view of an alternative embodiment of a bearing insert in accordance with the present invention.
- FIG. 13b is a front view of an alternative embodiment of a bearing insert in accordance with the present invention.
- FIG. 14 is an enlarged side view of the bearing surface of the bearing disc shown in FIG. 12a.
- FIG. 15a is an end view of an alternative embodiment of a pipe support according to the present invention suitable for large scale applications.
- FIG. 15b is a side view of the left portion of the case of the embodiment of FIG. 15a.
- FIG. 15c is a side view of the right portion of the case of the embodiment of FIG. 15a.
- FIG. 15d is a top cross sectional view of the embodiment of FIG. 15a.
- FIG. 15e is an end view of a portion of the embodiment of FIG. 15a showing means for rotating the support members.
- FIG. 16a is an end view of an alternative embodiment of a pipe support according to the present invention suitable for large scale applications.
- FIG. 16b is a side view of the case of the embodiment of FIG. 16a.
- FIG. 16c is a top view of the case of the embodiment of FIG. 16a.
- FIG. 16d is an end view of a portion of the embodiment of FIG. 16a showing means for rotating the support members.
- FIG. 17a is a side view of a portion of an alternative embodiment of the present invention shown with a bearing insert and a retainer plate.
- FIG. 17b is a view taken along line B-B of FIG. 17a showing the bearing insert.
- FIG. 17c is a view taken along line A-A of FIG. 17a showing the retainer plate.
- FIG. 18 is a front view of a bearing point in accordance with the present invention shown with friction reducing bearing means.
- FIG. 19 is a front view of the bearing point of FIG. 18.
- FIG. 20 is a front view of an end cap or bearing insert with bearing points as illustrated in FIG. 18.
- FIG. 21a is a simplified view of an isolator of the present invention inside an enclosure.
- FIG. 21b is a top view of an isolator of the present invention capable of rotating or sliding with an enclosure.
- FIGS. 21c is a side view of the isolator of FIG. 21b.
- It should be understood that the appended drawings are not necessarily to scale, presenting a somewhat simplified representation of various preferred features illustrative of the basic principles of the invention.
- As illustrated in FIGS.1A-20, a
support 10 is provided for supporting pipes, clamping pipes, isolating pipes from the environment, and/or isolating shock and vibration from pipes. While the illustrated embodiments of the present invention are particularly adapted for use with pipes, it is noted that the present invention can be used with any other object or group of objects placed within thesupport 10, such as, for example, distribution means, electric cable, and motors or portions of motors. One ormultiple supports 10 may be used to support an object, clamp an object, and/or isolate vibration associated with an object. It is understood that the object may be provided with bearing means so that it may rotate and that the support frame may be provided with rotating, slidable means so that it might itself rotate and slide within an enclosing structure. Other embodiments and design variations will be readily apparent to those skilled in the art given the benefit of this disclosure. - As illustrated in FIG. 1E, a
pipe support 10 includes a frame orcase 12 andsupport members 14. Thecase 12 is used to house thesupport members 14, and is placed around an object or group of objects, such as, for example, apipe 16. - The
case 12 is preferably a cylinder that can be placed around the longitudinal axis of apipe 16. As shown in FIG. 1A, the case may comprise a left cap or end 18A and a right cap or end 18B, with at least oneend case 12 and theother end case 12 also may be divided longitudinally into left andright portions case portion other portion case portions rotatable end case portions - As shown in FIGS. 1G, 2a, 6, 6 a, 6 b, 7 a, 7 b, and 7 c, the
case 12 also may be divided laterally into upper 21A and lower 21B sections. As illustrated in FIGS. 2a, 2 b, 6 b and 7 c, thesections case 12 is divided into upper 21A and lower 21B sections, thesections bolts 20 or a pipe clamp (not shown). As shown in FIG. 2a, such acase 12 may also be secured usinghinges 22 and afastener 24, which may be a snap clamp, pipe clamp, other quick fastener, bolt, or screw. FIG. 11a and 11 b shown the use of asplit nut 37 to secure a case with continuousexterior threads 35 on the exterior of thecase 12. Forming thecase 12 from twosections pipe support 10 to be placed over an existingpipe 16 without any disassembly of the pipe structure. It also allows thepipe support 10 to be placed around a new pipe section without threading the pipe through the support. - Combinations of the above-described case configurations may be employed in the present invention. For example, the case may be divided into left and
right portions lower sections case 12, such as, for example,cases 12 having different geometries, can be used in the present invention. - In yet another alternative embodiment of the invention (not shown in the drawings), the
case 12 may define a lateral slot or opening such that thecase 12 does not completely enclose the object to be supported. For example, a half cylinder could be used as acase 12 in this embodiment and apipe 16 could be placed onsupport members 14 connected to thecase 12. In this embodiment, thesupport 10 would act as a support and a vibration isolator but, in some designs, may not function as a clamp. Cases having other configurations that partially enclose the object to be supported also are within the scope of the invention. - The
support members 14 are preferablyrods 14 that are placed within thecase 12 and around the item, such as apipe 16, to be supported. The cross section of therods 14 may be round or may be any other shape, and the cross section of therods 14 may be the same throughout a rod's length or may vary, such as in a tapered rod. In addition, therods 14 may be straight, bent, or curved. Thesupport members 14 are preferably solid, flexible rods made from metal or other suitable material, such as a polymer or composite. In one preferred embodiment, thesupport members 14 are formed from a pultruded composite, such as, for example, a pultruded fiberglass/polyester resin composite. If desired, therods 14 may exhibit elastic properties. - As illustrated in FIG. 1B, the
pipe support 10 preferably includes bearing points 26 at each end of thecase 12. The bearing points 26 may be part of thecase 12 or may be included on bearing inserts or rings 28 attached near each end of thecase 12, as shown in FIG. 10a. The bearing inserts 28 may be secured within thecase 12 by notches on theinserts 28 that engage grooves provided on the inner surface of thecase 12, as shown in FIGS. 10a and 10 b. The use of separate bearing inserts 28 allows acase 12 to be used withrods 14 of varying sizes or positions. - As illustrated in FIG. 14, a bearing
surface 29 of the bearing points 26 may be flat, curved, concave, convex, or any other shape. Therods 14 engage the bearing surfaces 29 of the bearing points 26. FIG. 1A shows abearing point 26 having a beveled bearingsurface 29 to accommodate the movement ofrods 14 resulting from rotation of a case end 18A, 18B, as shown in FIG. 1D. - In one preferred embodiment, the
rods 14 are not restrained and are free to slide on the bearing points 26 as shown in FIG. 1D. Therods 14 may include end stops 27 so that therods 14 cannot pass through the bearing points 26 of the case end 18A, 18B, as shown in FIG. 1C. Thesupport rods 14 preferably are long enough that the ends of therods 14 extend beyond the bearing points 26 when therods 14 are twisted about thepipe 16 to clamp thepipe 16 and isolate vibration occurring in or transmitted by thepipe 16, as more fully discussed below. As shown in FIG. 5, thecase 12 or ends 18A, 18B may include a restraining end or cap 32 to limit the linear movement of therods 14 inside thecase 12 between the bearing points 26. The restraining ends or caps 32 may be used in conjunction with the end stops 27 or as an alternative to the end stops 27. The end caps 32 may be integrally formed with the case ends 18A, 18B. To aid in installation, the end caps 32 may be formed from a flexible material, such as rubber, as shown in FIG. 4b. Aflexible end cap 32 also may be split, as shown in FIG. 4a, to allow thecap 32 to be installed on an existing pipe. Other means to restrict the lateral movement of therods 14, such as, for example, ahydraulic stop 81 or aspring stop 82, may also be used with the present invention. In addition to restricting the lateral movement of therods 14, the end caps 32 may protect the rod ends from mechanical damage or prevent other objects from catching or collecting on the rod ends during use. - In an alternative embodiment, the
support members 14 may be elastic members that are attached to thecase 12 or to the bearing points 26 in a fixed position (not shown in the drawings). When first ends of suchelastic support members 14 are rotated with respect to second ends, as more fully discussed below, theelastic support members 14 stretch to contact and grip the object placed between them. It will be recognized by those skilled in the art that other materials may also be used for the material of thesupport members 14. - The bearing points26 may include friction reducing means such as, for example, ball bearings, roller bearings, or lubricant fittings. FIGS. 18-20 illustrate a
bearing point 26 having friction reducing means that comprise aninner piece 50 rotatably connected about a first axis to anouter piece 52 that is attached to thecase 12 or abearing insert 28. Athird piece 54 is rotatably connected to theinner piece 50 about a second axis that is substantially parallel to the first axis. Asupport member 14 is connected to thethird piece 54 so that thesupport member 14 is rotatable in all directions with respect to thecase 12. This allows thesupport members 14 to be rotated about apipe 16 without producing friction in the bearing points 26. - Numerous variations of the arrangement and the number of the support members or
rods 14 and corresponding bearing points 26 may be used in the present invention. As shown in FIGS. 12a, 12 b, 13 a, and 13 b illustrating alternative embodiments, the bearing points 26 could be positioned symmetrically or asymmetrically, could be positioned in multiple rings, or could be positioned as points in other geometric patterns. FIG. 1F shows the angles between the bearing points 26 and the center of thecase 12 in various embodiments. The bearing points 26 could be placed in bearing inserts 28 or directly in thecase 12. The shape of thecase 12 may also be varied to correspond with the shape of the bearing points 26 or bearing inserts 28. As shown in FIGS. 17a and 17 b, when acase 12 comprising two halves is used, a bearinginsert 28 may also be divided into two halves in order to allow thepipe support 10 to be placed around apipe 16 without disassembling or cutting thepipe 16. - When first ends of the
support members 14 are rotated with respect to second ends of thesupport members 14, thesupport members 14 will engage thepipe 16 or any other object or group of objects that is between them. Thecase 12 may comprise aright end 18B orportion 19B that is rotatable with respect to aleft portion 19A. As theright end 18B orportion 19B is rotated, the bearing points 26 within theright end 18B orportion 19B are rotated with respect to the bearing points 26 within theleft portion 19A. This rotation of the bearing points 26 rotates one end of eachsupport member 14 with respect to the other end so that thesupport members 14 will contact an object in between them. - It will be recognized by those skilled in the art that other means for rotating the
support members 14 are also included in the invention. For example, FIGS. 17a-17 c illustrate an alternative embodiment of the invention using abearing insert 28 that may be rotated with the use of a key (not shown) designed to fit into akeyhole 5 of the bearinginsert 28 so that the bearing points 26 in the bearing insert 28 (and therefore thesupport members 14 held by the bearing points 26) are rotatable. As shown in FIGS. 8a, 8 b, 9 b, 9 c, and 9 e, thecase 12 may include aright end 18B (shown in FIGS. 8a and 9 a) provided withteeth 32 that interlock with aratchet clip 34 on the inside of thecase 12 to secure the rotational position of theright end 18B of thecase 12 with respect to theleft end 18A of thecase 12. The spacing of theteeth 32 may be calibrated to provide preset intervals for rotational tensioning. It will also be recognized by those skilled in the art that other means for securing the rotational position of one end or portion of thecase 12 with respect to the other are included in the present invention. - As shown in FIG. 1E, when
straight support members 14 are used, thesupport members 14 preferably define an initial position that is substantially parallel to thepipe 16. As the bearing points 26 at one end of thecase 12 are rotated with respect to the bearing points 26 at the other end of thecase 12, first ends of thesupport members 14 rotate with respect to second ends of thesupport members 14 so that thesupport members 14 will contact an object within thesupport members 14. The length of asupport member 14 in between twobearing points 26 increases as abearing point 26 at one end of thecase 12 rotates with respect to abearing point 26 at the other end of thecase 12. When thesupport members 14 arerods 14 as shown in FIG. 1E, the ends of therods 14 move closer to the bearing points 26 as therods 14 are rotated. When thesupport members 14 areelastic members 14 connected to the bearing points 26, theelastic members 14 stretch as they are rotated about an object. - It is noted that when
rods 14 are used, therods 14 have a nonlinear response to the force applied to bend therods 14 as the length of therods 14 supported in between the bearing points 26 is increased. Less force is needed to bend therods 14 as the length of therods 14 bent through the bearing points 26 is increased. This is in contrast to the linear response from a spring, where the force required to depress the spring per unit distance is constant. - As illustrated in FIG. 1D, the
support members 14 contact thepipe 16 to achieve a support position where thesupport members 14 act as a cradle for thepipe 16. The amount thesupport members 14 are rotated, which is preferably adjustable, will determine how tightly thepipe 16 is held between thesupport members 14. Once thepipe 16 is secured in thesupport members 14 of thesupport 10, thepipe support 10 acts as a clamp, gripping and securing thepipe 16. Thepipe support 10 also may act as a vibration isolator to isolate any vibrations or shocks that thepipe 16 may receive or transmit. Thecase 12 of thepipe support 10 may also act to protect and insulate thepipe 16 from elements outside of thecase 12. - When the first ends of the
support members 14 are rotated with respect to the second ends of thesupport members 14, thesupport members 14 contact an object in between them and, depending upon the composition of thesupport members 14 in a specific embodiment and the amount that thesupport members 14 are rotated, thesupport members 14 may bend about the object as thesupport members 14 are rotated. When a symmetrical object such as apipe 16 is engaged by thesupport 10, the area of eachsupport member 14 contacting thepipe 16 will be substantially similar. Thesupport members 14 will preferably contact thepipe 16 so that the longitudinal axis of thepipe 16 can be pivoted with respect to the longitudinal axis of thecase 12. Thesupport members 14 will also preferably contact thepipe 16 in a way that allows thepipe 16 to be rotated about its longitudinal axis while also providing resistance against lateral movement of thepipe 16. These advantageous features allow thepipe support 10 to support thepipe 16 and provide vibration isolation to thepipe 16 when the longitudinal axes of thecase 12 and thepipe 16 are not parallel. These advantageous features also allow for some movement or adjustment of thepipe 16 after thepipe 16 is engaged by thesupport 10. - The
pipe support 10 may also include means 36 for adjusting the frequency response of thesupport members 14 to vibration generated or transmitted by thepipe 16 when vibration is isolated by thesupport members 14. As shown in FIGS. 2c and 3, means 36 for adjusting the frequency response of thesupport members 14 may comprise acase 12 that has aright portion 19B that is slidable within aleft portion 19A so that the distance between the bearing points 26 may be changed. As shown in FIG. 4, theinner portion 19B may be provided with graduated markings calibrated to particular frequency adjustment intervals or presets. Alternatively, as shown in FIG. 9d, anend cap 32 andcase 18B may be provided with a ratchet slide clip that provides adjustment of the frequency response by moving the end cap relative to the case to change the distance between the bearing points 26. Another means 36 to adjust the frequency response of thesupport members 14 is illustrated in FIGS. 11a and 11 b. The alternative embodiment includesthreads 35 on outside of theleft portion 19A and a hinged, splitnut 37 adjustably clamping theright portion 19B within theleft portion 19A so that the distance between the bearing points 26 is adjustable. Given the benefit of this disclosure, those skilled in the art will recognize that other means 36 for adjusting the frequency response of thesupport members 14 to vibration generated or transmitted by thepipe 16 are also included in the invention. - As illustrated in FIG. 2b, the
pipe support 10 may further include ahanger 40 attached to thecase 12 to attach thepipe support 10 at a fixed point to another object. Thehanger 40 may be any connector used to attach thecase 12 to another object, such as, for example, clamp brackets, bolts, screws, wires or straps. - In an alternative embodiment of the invention (not shown in the drawings), the
support members 14 are inserted into the bearing points 26 after thecase 12 is placed around an object so that there is no need to rotate the bearing points 26 orsupport members 14. In this embodiment, theindividual support members 14 contact thepipe 16 when they are inserted through two bearing points 26 on opposite sides of thecase 12. - FIG. 21a shows another embodiment of the invention in which the
isolator 90 is itself capable of rotating or sliding within a generallycylindrical enclosure 92, such as a pipe. FIG. 21a is a top view of theisolator 90 including includes aframe 94 capable of being secured to arotating object 96 and a plurality ofsupport members 98 within theframe 94. Theisolator 90 also includesmeans 100 for supporting each of the plurality ofsupport members 98 at a minimum of two points and rotating each of thesupport members 98 at a first contact point with respect to a second contact point so the support members engage anobject 96 placed within theframe 94. Contact means 102 are attached to an outer surface of theframe 94 to allow theframe 94 to rotate and slide within theenclosure 92. The contact means 102 may be bearings, casters, wheels, or other suitable structures that engage the interior diameter of theenclosure 92 in a way that allows theframe 94 to rotate or slide relative to theenclosure 92. Alternatively, theenclosure 92 may be provided with an interior bearing sleeve, not shown in the drawings, that slidably engages the exterior of theframe 94.. - It should be appreciated from the description herein that the present invention is neither limited by the size of the
support 10 nor the size of an object to be secured in thesupport 10. For example, FIGS. 15a, 15 b, 15 c, 15 d, 15 e, 16 a, 16 b, 16 c, and 16 d illustrate an alternative embodiment of the invention that is suitable for large scale applications. As best illustrated in FIGS. 15b and 15 c, the alternative embodiment includes acase 12 that comprises aleft portion 19A and aright portion 19B, as well as anupper section 21A and alower section 21B. Theright portion 19B is secured to theleft portion 19A bycircular restraint notches 60 on theleft portion 19A andcircular restraint grooves 62 on theright portion 19B. As illustrated in FIG. 15a, theupper section 21A is secured to thelower section 21B bybolts 64. As illustrated in FIGS. 15e, 16 b, 16 c, and 16 d, various means for rotating first ends of thesupport members 14 with respect to the second ends of thesupport members 14 may be used in the alternative embodiment. FIG. 15e illustrates holes 66 on theright end 18B that cooperate with a tool (not shown) to rotate theright portion 19B with respect to theleft portion 19A. FIGS. 16b, 16 c, and 16 d illustrate aremovable tool 68 for rotating theright portion 19B or end with respect to theleft portion 19A. FIGS. 16b, 16 c, and 16 d illustrate a gearedperiphery 70 of theright end 18B that interacts with thetool 68. Alock 72 and/or a ratchet stop 74 is used to secure the rotational position of theright portion 19B with respect to theleft portion 19A. FIGS. 16a and 16 b also illustrate a base 76 that may be used withlarger supports 10. The rotation to adjust the tension may be accomplished manually or with the assistance of mechanical, hydraulic, or other suitable devices. - The present invention also includes a method for supporting a pipe (or other object or group of objects), a method of isolating vibration in a pipe (or other object or group of objects), a method of protecting a pipe (or other object or group of objects), and a method of leveling a pipe (or other object or group of objects). By using the
pipe support 10 as described herein, a pipe 16 (or other object or group of objects) may be supported, clamped, isolated from vibration, and/or protected from elements outside of thecase 12 by placing thepipe 16 within thepipe support 10 and rotating thesupport members 14 to engage and grip thepipe 16. Thesupport 10 may also be used to level apipe 16 or other object because thesupport members 14 center an object such as apipe 16 within thesupport 10 when thesupport members 14 are caused to engage the object. - The method of isolating vibration in an object or group of objects in accordance with the present invention may be used to control vibration in systems such as, for example, a motor, that produce vibrations. A pipe, rod, or other object is attached to the vibrating system and a
support 10 in accordance with the present invention is attached to the pipe, rod, or other object. Thesupport 10 isolates vibration in the pipe, rod, or other object and in turn isolates vibration occurring in the vibrating system. - For example, the invention provides a method of isolating vibration in a rotating object which is provided with bearing means for engaging the support. The method includes the steps of providing a support comprising a frame capable of being placed around a rotating object, a plurality of support members within the frame, means for supporting each of the plurality of support members at a minimum of two points, and means for rotating each of the support members at a first contact point with respect to a second contact point so the support members engage the bearing means associated with the rotating object; placing the frame around the object and its bearing means; and turning the rotating means to cause the support members to engage the bearing means associated with the rotating object. Alternatively, the support members may be provided with bearing means for engaging the rotating object.
- The invention also provides a method for securing a rotating object while the support independently rotates within a generally cylindrical enclosure. The method includes the steps of providing a support comprising a frame capable of being secured to a rotating object, a plurality of support members within the frame, means for supporting each of the plurality of support members at a minimum of two points, means for rotating each of the support members at a first contact point with respect to a second contact point so the support members engage a rotating object placed within the frame, and contact means attached to an outer surface of the frame that allow the frame to rotate and slide within a generally cylindrical enclosure, such as a pipe; placing the frame around the rotating object; turning the rotating means to cause the support members to engage the rotating object and secure it within the frame; and placing the frame within an enclosure. The contact means may be bearings, casters, wheels, or other suitable structures that engage the interior diameter of the enclosure in a way that allows the frame to rotate or slide relative to the enclosure. Alternatively, the enclosure may be provided with an interior bearing sleeve, not shown in the drawings, that slidably engages the exterior of the frame.
- The method also provides a method for isolating vibration from a vibrating object such as a motor. The method includes the steps of providing an isolator support comprising a frame capable of being placed around contacting supports attached to the vibrating object, a plurality of support members within the frame, means for supporting each of the plurality of support members at a minimum of two points, and means for rotating each of the support members at a first contact point with respect to a second contact point so the support members engage the contacting supports; placing the isolator support around the contacting supports; and turning the rotating means to cause the support means to engage the contacting supports. Depending on the application, one or more isolators may be used, with additional isolators engaging additional contacting supports attached to the vibrating object.
- From the foregoing disclosure and detailed description of certain preferred embodiments, it will be apparent that various modifications, additions and other alternative embodiments are possible without departing from the true scope and spirit of the present invention. For example, it will be apparent to those skilled in the art, given the benefit of the present disclosure, that the invention discussed herein in connection with a pipe can be used with any other object or group of objects, which may be stationary, rotating, slidable, or both rotating and slidable. The embodiments discussed were chosen and described to provide the best illustration of the principles of the present invention and its practical application to thereby enable one of ordinary skill in the art to use the invention in various embodiments and with various modifications as are suited to the particular use contemplated. All such modifications and variations are within the scope of the present invention as determined by the appended claims when interpreted in accordance with the benefit to which they are fairly, legally, and equitably entitled.
Claims (19)
1. A support, comprising:
a frame;
a plurality of support members within said frame;
means for supporting each of the plurality of members at a minimum of two contact points; and
means for rotating each of said support members at a first contact point with respect to a second contact point so that said support members engage an object placed within the support.
2. A pipe support for an installed pipe, comprising:
a frame capable of being placed around an installed pipe;
a plurality of support members within said frame;
means for supporting each of the plurality of members at a minimum of two contact points; and
means for rotating each of said support members at a first contact point with respect to a second contact point so that said support members engage a pipe placed within the pipe support.
3. The pipe support of claim 2 , wherein said frame is a hollow cylinder.
4. The pipe support of claim 3 , wherein said hollow cylinder comprises two connectable halves divided along the diameter of the hollow cylinder.
5. The pipe support of claim 2 , wherein said support members are rods for providing vibration isolation to a pipe placed within said pipe support.
6. The pipe support of claim 2 , wherein said support members are arranged in a symmetric pattern.
7. The pipe support of claim 2 , wherein said support members are arranged in an asymmetric pattern.
8. The pipe support of claim 2 , wherein said support members are elastic.
9. The pipe support of claim 2 , wherein the means for supporting the plurality of members are bearing points connected to the frame.
10. The pipe support of claim 3 , wherein the means for supporting the plurality of members at a minimum of two contact points are at least two bearing rings connected to the frame, each of said bearing rings including a bearing point for each support member.
11. The pipe support of claim 5 , further comprising:
means for adjusting the frequency that will occur in the support members when vibration is isolated by said support members.
12. The pipe support of claim 2 , further comprising:
means for varying the distance between the two contact points where each of the plurality of support members are supported.
13. The pipe support of claim 2 , wherein:
said frame is a hollow cylinder comprising two connectable halves divided along the diameter of the hollow cylinder;
said support members are rods for providing vibration isolation to a pipe placed within said pipe support;
the means for supporting the plurality of members at a minimum of two contact points are at least two bearing rings connected to the frame, each of said bearing rings including a bearing point for each support member, said bearing points being arranged in a circular pattern concentric with the hollow cylinder frame; and
means for varying the distance between the two contact points where each of the plurality of support members are supported.
14. A method of securing a pipe, comprising:
(a) providing a pipe support comprising:
a frame capable of being placed around an installed pipe;
a plurality of support members within said frame;
means for supporting each of the plurality of members at a minimum of two contact points; and
means for rotating each of said support members at a first contact point with respect to a second contact point so that the support members engage a pipe placed within the pipe support;
(b) placing said pipe support around the pipe; and
(c) turning said rotating means to cause said support members to engage the pipe and secure it within said frame.
15. A method of isolating vibration in a object, comprising:
(a) providing a pipe support comprising:
a frame capable of being placed around an object;
a plurality of support members within said frame;
means for supporting each of said plurality of members at a minimum of two contact points; and
means for rotating each of said support members at a first contact point with respect to a second contact point so that the support members engage an object placed within the frame;
(b) placing said frame around said object; and
(c) turning said rotating means to secure the object such that vibration occurring in the object is isolated by said plurality of support members.
16. A method of isolating vibration in a rotating object provided with bearing means, the method comprising the steps of:
(a) providing a support comprising
a frame capable of being placed around a rotating object provided with bearing means;
a plurality of support members within said frame;
means for supporting each of said plurality of support members at a minimum of two points; and
means for rotating each of said support members at a first contact point with respect to a second contact point so the support members engage the bearing means;
(b) placing said frame around the object and its bearing means; and
(c) turning said rotating means to cause said support members to engage the bearing means.
17. A method for securing a rotating object, comprising the steps of:
(a) providing a support comprising
a frame capable of being secured to a rotating object;
a plurality of support members within said frame;
means for supporting each of said plurality of support members at a minimum of two points;
means for rotating each of the support members at a first contact point with respect to a second contact point so the support members engage a rotating object placed within said frame; and
contact means attached to an outer surface of said frame that allow the frame to rotate and slide within a generally cylindrical enclosure;
(b) placing said frame around the rotating object;
(c) turning said rotating means to cause said support members to engage the rotating object and secure it within said frame; and
(d) placing said frame within an enclosure.
18. A method of isolating vibration from an object provided with contacting supports, the method comprising the steps of:
(a) providing an isolator support comprising
a frame capable of being placed around the contacting supports;
a plurality of support members within said frame;
means for supporting each of the plurality of support members at a minimum of two points; and
means for rotating each of said support members at a first contact point with respect to a second contact point so the support members engage the contacting supports;
(b) placing said isolator support around the contacting supports; and
(c) turning said rotating means to cause said support means to engage the contacting supports.
19. A support for a rotating object, comprising
a frame capable of being secured to a rotating object;
a plurality of support members within said frame;
means for supporting each of said plurality of support members at a minimum of two points;
means for rotating each of the support members at a first contact point with respect to a second contact point so the support members engage a rotating object placed within said frame; and
contact means attached to an outer surface of said frame that allow the frame to rotate and slide within a generally cylindrical enclosure.
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-
2001
- 2001-11-10 EP EP01993789A patent/EP1336063B1/en not_active Expired - Lifetime
- 2001-11-10 KR KR1020037006393A patent/KR100812900B1/en not_active IP Right Cessation
- 2001-11-10 AU AU2002218020A patent/AU2002218020A1/en not_active Abandoned
- 2001-11-10 CA CA2428447A patent/CA2428447C/en not_active Expired - Fee Related
- 2001-11-10 US US10/007,312 patent/US20020104929A1/en not_active Abandoned
- 2001-11-10 JP JP2002541295A patent/JP3746483B2/en not_active Expired - Fee Related
- 2001-11-10 DE DE60142246T patent/DE60142246D1/en not_active Expired - Lifetime
- 2001-11-10 WO PCT/US2001/046416 patent/WO2002039006A1/en active Application Filing
- 2001-11-10 MX MXPA03004104A patent/MXPA03004104A/en active IP Right Grant
- 2001-11-10 CN CNB018219063A patent/CN1297774C/en not_active Expired - Fee Related
- 2001-11-10 AT AT01993789T patent/ATE469320T1/en not_active IP Right Cessation
-
2003
- 2003-01-21 US US10/348,036 patent/US7500642B2/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11029215B2 (en) * | 2018-09-24 | 2021-06-08 | Rosemount Inc. | Low contact clamp for non-invasive process fluid temperature indication |
US11320316B2 (en) | 2018-09-28 | 2022-05-03 | Rosemount Inc. | Non-invasive process fluid temperature indication with reduced error |
Also Published As
Publication number | Publication date |
---|---|
KR100812900B1 (en) | 2008-03-11 |
EP1336063B1 (en) | 2010-05-26 |
WO2002039006A1 (en) | 2002-05-16 |
MXPA03004104A (en) | 2005-04-28 |
CA2428447A1 (en) | 2002-05-16 |
US7500642B2 (en) | 2009-03-10 |
DE60142246D1 (en) | 2010-07-08 |
JP2004523695A (en) | 2004-08-05 |
EP1336063A1 (en) | 2003-08-20 |
US20040025952A1 (en) | 2004-02-12 |
AU2002218020A1 (en) | 2002-05-21 |
CN1527919A (en) | 2004-09-08 |
CA2428447C (en) | 2010-11-30 |
JP3746483B2 (en) | 2006-02-15 |
ATE469320T1 (en) | 2010-06-15 |
EP1336063A4 (en) | 2009-03-25 |
KR20030068149A (en) | 2003-08-19 |
CN1297774C (en) | 2007-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |