US3467302A - Air blower - Google Patents
Air blower Download PDFInfo
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- US3467302A US3467302A US640722A US3467302DA US3467302A US 3467302 A US3467302 A US 3467302A US 640722 A US640722 A US 640722A US 3467302D A US3467302D A US 3467302DA US 3467302 A US3467302 A US 3467302A
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- Prior art keywords
- air
- housing structure
- blower
- flow path
- impeller
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
- D04B35/32—Devices for removing lint or fluff
Definitions
- This constantly revolving flow path is produced by providing a blower housing structure that is mounted for free rotation with respect to the enclosed blower impeller such that the discharging air imparts a rotation producing reactive torque to the housing structure, with the structure being arranged, if desired, for selective adjustment to vary the direction of the flow path of the discharging air and regulate the rotation producing reactive torque imparted to the housing structure.
- the present invention relates to the field of air blowers used to clean machinery during Operation thereof by directing air thereacross to remove foreign matter and to eliminate the settling of foreign matter thereon. It is particularly applicable to cleaning of machines in a knitting mill where the surrounding atmosphere includes large quantities of entrained lint which, if not dealt with properly, will settle on the machines and yarn, adversely affecting production.
- the individual stationary blower sutfers the disadvantage of allowing significant and undesirable accumulation of foreign matter at areas outside the direct path of the fixed air stream, particularly those areas immediately adjacent the air stream; and the traveling blowers, which continually pass operative and temporarily inoperative knitting machines alike, direct substantial air currents agains the untensioned yarn reaches extending from the creel mounted yarn packages of temporarily inoperative knitting machines so as to cause these yarn reaches to become stretched or lengthened by partial unwinding of the yarn package, thereby increasing the tendency of the yarn to kink or become fouled when the knitting machine becomes operative.
- cleanertype air blowers be arranged with housing structures that are mechanically rotated by the blower drive motor so as to better distribute the discharge flow from the blower; however, these blowers necessarily require additional drive means and relatively complex constructions.
- the present invention overcomes the aforementioned drawbacks of the prior art by providing a blower that is extremely simple in construction and operation, and that discharges air along a constantly revolving flow path that sweeps adjacent knitting machines with cleaning air, effectively preventing any accumulation of lint or other foreign matter thereat.
- this blower includes a simple mechanical adjustment feature by which the direction of the flow path, as Well as the rotational speed thereof, may be selectively changed to suit the blower for a wide variety of cleaning applications.
- the present invention provides a unique control arrangement at the blower inlet whereby the volume of air pumped by the blower can be effectively controlled.
- the blower of the present invention comprises an impeller rotationally driven by motor means, a housing structure mounted in shrouding relation about the impeller for free rotation with respect thereto and having at least one outlet opening through which air pumped by the impeller is discharged from the housing structure, and air directing means disposed adjacent the outlet opening to direct the air discharged therefrom along a flow path that imparts a reactive torque to the freely mounted housing structure for causing rotation thereof.
- This air directing means may be relatively adjustable to vary the direction of the flow path and regulate the reactive torque imparted to the housing structure.
- the housing structure may include at its inlet a fixed cross-member and a centrally pivoted adjustable crossmember that can be selectively pivoted between an inactive position superimposed on the fixed crossmember and an active position blocking a portion of the inlet opening in the housing structure.
- FIG. 1 is an elevation view of the air blower of the present invention mounted on the creel posts of a circular knitting machine;
- FIG. 2 is a plan view of the air blower illustrated in FIG. 1;
- FIG. 3 is an elevation view corresponding generally to FIG. 1 but with the blower housing cut away along line 3-3 in FIG. 2 to illustrate the interior construction of the air blower.
- FIG. 1 illustrates a centrifugal air blower 10 comprising a housing structure 12 mounted in shrouding relation about an impeller 14 (FIG. 2) fixed on a shaft 16 driven by an electric motor 18 secured to a support bracket 20 extending between adjacent creel posts 22 of a circular knitting machine (not shown) and held in place thereat by U-bolts 24 so that the blower 10 is located adjacent the circular knitting machine to direct a flow of cleaning air thereagainst.
- impeller 14 FIG. 2
- FIG. 2 illustrates a centrifugal air blower 10 comprising a housing structure 12 mounted in shrouding relation about an impeller 14 (FIG. 2) fixed on a shaft 16 driven by an electric motor 18 secured to a support bracket 20 extending between adjacent creel posts 22 of a circular knitting machine (not shown) and held in place thereat by U-bolts 24 so that the blower 10 is located adjacent the circular knitting machine to direct a flow of cleaning air thereagainst.
- the housing structure 12 is generally cylindrical in shape and includes a circumferentially extending side wall 26 surrounding the outer edges of radial impeller blades 30 to provide a pumping chamber 28 in which air pumped centrifugally from impeller blades 30 is collected.
- the side wall 26 is formed with a plurality of outlet openings 32 through which pumped air is discharged from the pumping chamber 28, and the center of the bottom wall of housing structure 12 is formed with a depending annular bearing flange 34 that is rotatably mounted in a ball bearing assembly 36 fixed to the top face of the motor 18 so that the housing structure 12 is mounted for free rotation independently of the impeller 14, the annular bearing flange 34 also providing a convenient opening 38 through which shaft 16 extends for driving connection with motor 18 as best seen in FIG. 3.
- the top of the housing structure 12 has an in-turned flange 40 on which is fixed a ring member 42 held in place by attaching screws 44 J and defining an inlet opening 46 across which extends an inlet restricting arrangement 48 which will be described in greater detail presently.
- an air directing conduit 50 which, in the disclosed embodiment of the present invention, comprises a generally cylindrical first portion 52 rigidly secured to the circumferential side wall 26 so as to surround the outlet opening 32, and a second portion 54 mounted endwise on the first portion 52 for selective relative rotation about the lengthwise axis thereof and comprising three overlapped truncated cylindrical sectors 56 (FIG. 3) joined to one another by cooperating ridge and groove connections so as to be individually rotatable about the respective lengthwise axes thereof in the same manner as conventional adjustable stove-pipe elbows, thereby permitting the second portion 54 to be selectively curved along its lengthwise extent by adjustably rotating one or more of the sectors 56.
- the air discharged from the pumping chamber 28 through the outlet openings 32 will be channeled through the air directing conduits 50 and directed thereby along a flow path such that the discharging air, because of its velocity and directional relation to the housing structure 12, will impart a reactive torque to the housing structure 12 and cause it to rotate in the bearing assembly 36. It is, of course, apparent that the degree of this reactive torque will depend on the direction of the flow path with relation to the rotational path of the housing structure 12, a maximum torque being obtained by a flow path directed tangentially with respect to the rotational path and a minimum torque being obtained by a flow path directed parallel or perpendicular to the axis of this rotational path.
- the air directing conduits 50 in the disclosed embodiment of the present invention are selectively adjustable so that the direction of the flow path of the exiting air may be varied over a substantial range, and it will be noted that this adjustment may be made either by rotating the entire curved second portion 54 with respect to the first portion 52, or by adjusting the lengthwise curvature of the second portion 54 by selective rotation of the individual sectors 56.
- Such adjustments of the air directing conduits 50 permit the reactive torque imparted to the housing structure 12 to be regulated while also allowing the direction of the flow path of the exiting air to be varied so that it will pass over desired portions of the knitting machine to be cleaned.
- any practical number of air directing conduits could be provided, however, three conduits equally spaced about the housing structure 12 as in the illustrated embodiment has been found to provide excellent cleaning characteristics.
- conventional stove-pipe elbows are entirely suitable for use as the second portions 54 of the air directing conduits 50, and different combinations of elbows having standard angles of curvature may be employed depending on the particular application of the air blower 10. For example, the combination of three 60 elbows, or two 45 elbows and one 90 elbow have been found to provide good results in cleaning circular knitting machines.
- the aforementioned inlet restricting arrangement 48 is composed of a relatively narrow fixed cross-member 58 extending across the center of the blower inlet opening 46 and attached endwise to the top ring member 42, and a pair of stacked, adjustable cross-members 60 and 60 which have a width corresponding to that of fixed crossmember 58 and which are pivotally connected thereto by a pivot bolt 62 extending through all of the cross-members adjacent the center of the inlet opening 46 as best seen in FIGS. 2 and 3.
- the pivot bolt 62 allows the adjustable cross-members 60, 60 to be manually pivoted thereabout while at the same time exerts sufficient pressure to maintain the adjustable cross-members 60, 60' at any position to which they are moved.
- adjustable cross-members 60, 60' may be located in an inactive position superimposed on the fixed cross-member 58 (as indicated by the full lines in FIG. 2) where they do not have any effect on the air beingdrawn through the inlet opening 46, or they may be selectively pivoted individually to an active position (indicated by the dotted lines in FIG. 2) at which they will block a portion of the inlet opening 46 and restrict the volume of air drawn therethrough; and while two adjustable cross-members are illustrated, the present invention is not limited to any particular member of adjustable cross-members.
- An air blower for supplying a flow of air for cleaning machinery, said blower comprising a rotating impeller constructed to pump air centrifugally therefrom, motor means operativey connected to said impeller to impart rotation thereto, a hOtlSing structure disposed in shrouding relation about said impeller to define a pumping chamber therefor and mounted for free rotation independently of said impeller, said housing structure having at least one outlet opening through which air pumped by said impeller is discharged from said pumping chamber, and said housing structure having air directing means disposed adjacent said outlet opening to direct the air discharged therethrough along a particular flow path such that the discharge air imparts a reactive torque to said freely mounted housing structure to cause rotation thereof and revolution of said flow path, said air directing means being selectively adjustable for varying the direction of said flow path and for regulating the rotation of said housing structure by varying the reactive torque imparted thereto.
- conduit means includes a generally cylindrical first portion rigidly secured to said housing structure, and a second portion fitted about said first portion for relative rotation about the lengthwise axis thereof, said second portion being composed of overlapping sectors arranged to permit said second portion to be selectively curved along the lengthwise extent thereof.
- an inlet opening restricting means comprising a relatively narrow fixed cross-member extending across the center of said inlet opening and at least one adjustable cross-member having a width corresponding to that of said fixed cross-member and being pivotally connected thereto adjacent said inlet opening center so that said adjustable cross-member can be selectively pivoted between an inactive position superimposed on said fixed cross-member and an active position blocking a portion of said inlet opening.
- impeller includes radial blades for pumping air centrifugally therefrom, in that said housing structure is generally cylindrical in shape and includes a circumferentially extending side wall surrounding the radial edges of said impeller blades, and in that said outlet opening is formed in said circumferentially extending side wall.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
M. C. WILSON Sept. 16, 1969 AIR BLOWER '2 Sheets-Sheet 1 Filed May 25. 1967 INVENTOR MERLIN c. wnLsow ATTORN Y5 6, 1969 M. c. WILSON 3,467,302
AIR BLOWER Filed May 23. 1967 2 Sheets-Sheet 2 I NVENTOR MERLIN C. WLSON A'i'ToRNEYs United States Patent 3,467,302 AIR BLOWER Merlin C. Wilson, Textile Air Company, 6524 Wilkinson Blvd, Charlotte, N.C. 28214 Filed May 23, 1967, Ser. No. 640,722 Int. Cl. F0411 25/08; D01h 11/00; B05b 3/06 US. Cl. 230270 7 Claims ABSTRACT OF THE DISCLOSURE A blower for discharging air in a constantly revolving flow path that sweeps cleaning air across machinery, such as knitting machines, to remove lint or other foreign matter therefrom. This constantly revolving flow path is produced by providing a blower housing structure that is mounted for free rotation with respect to the enclosed blower impeller such that the discharging air imparts a rotation producing reactive torque to the housing structure, with the structure being arranged, if desired, for selective adjustment to vary the direction of the flow path of the discharging air and regulate the rotation producing reactive torque imparted to the housing structure.
Background of the invention The present invention relates to the field of air blowers used to clean machinery during Operation thereof by directing air thereacross to remove foreign matter and to eliminate the settling of foreign matter thereon. It is particularly applicable to cleaning of machines in a knitting mill where the surrounding atmosphere includes large quantities of entrained lint which, if not dealt with properly, will settle on the machines and yarn, adversely affecting production.
Heretofore, foreign matter of this sort has been dealt with primarily by installing individual stationary air blowers near each knitting machine for discharging cleaning air along a fixed flow path directed at selected areas where the accumulation of foreign matter would be particularly harmful, or by installing movable blowers mounted on a complex arrangement of elevated tracks for continuous transportation along a fixed course designed to insure that the traveling blower would pass each knitting machine at periodic intervals and cause a stream of cleaning air to be directed thereagainst. However, the individual stationary blower sutfers the disadvantage of allowing significant and undesirable accumulation of foreign matter at areas outside the direct path of the fixed air stream, particularly those areas immediately adjacent the air stream; and the traveling blowers, which continually pass operative and temporarily inoperative knitting machines alike, direct substantial air currents agains the untensioned yarn reaches extending from the creel mounted yarn packages of temporarily inoperative knitting machines so as to cause these yarn reaches to become stretched or lengthened by partial unwinding of the yarn package, thereby increasing the tendency of the yarn to kink or become fouled when the knitting machine becomes operative.
Also, it has been proposed heretofore that cleanertype air blowers be arranged with housing structures that are mechanically rotated by the blower drive motor so as to better distribute the discharge flow from the blower; however, these blowers necessarily require additional drive means and relatively complex constructions.
Summary of the invention The present invention overcomes the aforementioned drawbacks of the prior art by providing a blower that is extremely simple in construction and operation, and that discharges air along a constantly revolving flow path that sweeps adjacent knitting machines with cleaning air, effectively preventing any accumulation of lint or other foreign matter thereat. Moreover, this blower includes a simple mechanical adjustment feature by which the direction of the flow path, as Well as the rotational speed thereof, may be selectively changed to suit the blower for a wide variety of cleaning applications. Finally, the present invention provides a unique control arrangement at the blower inlet whereby the volume of air pumped by the blower can be effectively controlled.
Briefly described, the blower of the present invention comprises an impeller rotationally driven by motor means, a housing structure mounted in shrouding relation about the impeller for free rotation with respect thereto and having at least one outlet opening through which air pumped by the impeller is discharged from the housing structure, and air directing means disposed adjacent the outlet opening to direct the air discharged therefrom along a flow path that imparts a reactive torque to the freely mounted housing structure for causing rotation thereof. This air directing means may be relatively adjustable to vary the direction of the flow path and regulate the reactive torque imparted to the housing structure. Also, the housing structure may include at its inlet a fixed cross-member and a centrally pivoted adjustable crossmember that can be selectively pivoted between an inactive position superimposed on the fixed crossmember and an active position blocking a portion of the inlet opening in the housing structure.
Brief description of the drawings FIG. 1 is an elevation view of the air blower of the present invention mounted on the creel posts of a circular knitting machine;
FIG. 2 is a plan view of the air blower illustrated in FIG. 1; and
FIG. 3 is an elevation view corresponding generally to FIG. 1 but with the blower housing cut away along line 3-3 in FIG. 2 to illustrate the interior construction of the air blower.
Description of the preferred embodiment Turning now in detail to the accompanying drawings in which FIG. 1 illustrates a centrifugal air blower 10 comprising a housing structure 12 mounted in shrouding relation about an impeller 14 (FIG. 2) fixed on a shaft 16 driven by an electric motor 18 secured to a support bracket 20 extending between adjacent creel posts 22 of a circular knitting machine (not shown) and held in place thereat by U-bolts 24 so that the blower 10 is located adjacent the circular knitting machine to direct a flow of cleaning air thereagainst.
The housing structure 12 is generally cylindrical in shape and includes a circumferentially extending side wall 26 surrounding the outer edges of radial impeller blades 30 to provide a pumping chamber 28 in which air pumped centrifugally from impeller blades 30 is collected. The side wall 26 is formed with a plurality of outlet openings 32 through which pumped air is discharged from the pumping chamber 28, and the center of the bottom wall of housing structure 12 is formed with a depending annular bearing flange 34 that is rotatably mounted in a ball bearing assembly 36 fixed to the top face of the motor 18 so that the housing structure 12 is mounted for free rotation independently of the impeller 14, the annular bearing flange 34 also providing a convenient opening 38 through which shaft 16 extends for driving connection with motor 18 as best seen in FIG. 3. The top of the housing structure 12 has an in-turned flange 40 on which is fixed a ring member 42 held in place by attaching screws 44 J and defining an inlet opening 46 across which extends an inlet restricting arrangement 48 which will be described in greater detail presently.
Attached to the housing structure 12 adjacent each outlet opening 32 therein is an air directing conduit 50 which, in the disclosed embodiment of the present invention, comprises a generally cylindrical first portion 52 rigidly secured to the circumferential side wall 26 so as to surround the outlet opening 32, and a second portion 54 mounted endwise on the first portion 52 for selective relative rotation about the lengthwise axis thereof and comprising three overlapped truncated cylindrical sectors 56 (FIG. 3) joined to one another by cooperating ridge and groove connections so as to be individually rotatable about the respective lengthwise axes thereof in the same manner as conventional adjustable stove-pipe elbows, thereby permitting the second portion 54 to be selectively curved along its lengthwise extent by adjustably rotating one or more of the sectors 56.
The air discharged from the pumping chamber 28 through the outlet openings 32 will be channeled through the air directing conduits 50 and directed thereby along a flow path such that the discharging air, because of its velocity and directional relation to the housing structure 12, will impart a reactive torque to the housing structure 12 and cause it to rotate in the bearing assembly 36. It is, of course, apparent that the degree of this reactive torque will depend on the direction of the flow path with relation to the rotational path of the housing structure 12, a maximum torque being obtained by a flow path directed tangentially with respect to the rotational path and a minimum torque being obtained by a flow path directed parallel or perpendicular to the axis of this rotational path.
While it is within the scope of the present invention to provide the housing structure 12 with fixed air directing conduits arranged to provide a preselected fiow path for the exiting air to cause a preselected rotation of the housing structure 12, the air directing conduits 50 in the disclosed embodiment of the present invention are selectively adjustable so that the direction of the flow path of the exiting air may be varied over a substantial range, and it will be noted that this adjustment may be made either by rotating the entire curved second portion 54 with respect to the first portion 52, or by adjusting the lengthwise curvature of the second portion 54 by selective rotation of the individual sectors 56. Such adjustments of the air directing conduits 50 permit the reactive torque imparted to the housing structure 12 to be regulated while also allowing the direction of the flow path of the exiting air to be varied so that it will pass over desired portions of the knitting machine to be cleaned.
It will be understood that any practical number of air directing conduits could be provided, however, three conduits equally spaced about the housing structure 12 as in the illustrated embodiment has been found to provide excellent cleaning characteristics. Also, it has been determined that conventional stove-pipe elbows are entirely suitable for use as the second portions 54 of the air directing conduits 50, and different combinations of elbows having standard angles of curvature may be employed depending on the particular application of the air blower 10. For example, the combination of three 60 elbows, or two 45 elbows and one 90 elbow have been found to provide good results in cleaning circular knitting machines.
The aforementioned inlet restricting arrangement 48 is composed of a relatively narrow fixed cross-member 58 extending across the center of the blower inlet opening 46 and attached endwise to the top ring member 42, and a pair of stacked, adjustable cross-members 60 and 60 which have a width corresponding to that of fixed crossmember 58 and which are pivotally connected thereto by a pivot bolt 62 extending through all of the cross-members adjacent the center of the inlet opening 46 as best seen in FIGS. 2 and 3. The pivot bolt 62 allows the adjustable cross-members 60, 60 to be manually pivoted thereabout while at the same time exerts sufficient pressure to maintain the adjustable cross-members 60, 60' at any position to which they are moved. Thus, these adjustable cross-members 60, 60' may be located in an inactive position superimposed on the fixed cross-member 58 (as indicated by the full lines in FIG. 2) where they do not have any effect on the air beingdrawn through the inlet opening 46, or they may be selectively pivoted individually to an active position (indicated by the dotted lines in FIG. 2) at which they will block a portion of the inlet opening 46 and restrict the volume of air drawn therethrough; and while two adjustable cross-members are illustrated, the present invention is not limited to any particular member of adjustable cross-members.
The present invention has been described above for purposes of illustration only and is not intended to be limited by this description or otherwise except as defined in the following claims.
I claim:
1. An air blower for supplying a flow of air for cleaning machinery, said blower comprising a rotating impeller constructed to pump air centrifugally therefrom, motor means operativey connected to said impeller to impart rotation thereto, a hOtlSing structure disposed in shrouding relation about said impeller to define a pumping chamber therefor and mounted for free rotation independently of said impeller, said housing structure having at least one outlet opening through which air pumped by said impeller is discharged from said pumping chamber, and said housing structure having air directing means disposed adjacent said outlet opening to direct the air discharged therethrough along a particular flow path such that the discharge air imparts a reactive torque to said freely mounted housing structure to cause rotation thereof and revolution of said flow path, said air directing means being selectively adjustable for varying the direction of said flow path and for regulating the rotation of said housing structure by varying the reactive torque imparted thereto.
2. An air blower as defined in claim 1 and further characterized in that said air directing means is selectively adjustable through a range which allows the direction of said flow path to be varied at least from a direction tangent to the rotational path of said housing structure to a direction parallel to or perpendicular to the axis of said rotational path.
3. An air blower as defined in claim 2 and further characterized in that said air directing means comprises conduit means secured at one end thereof adjacent said housing structure outlet opening for lengthwise extension therefrom and formed to permit selective orientation of the direction of its lengthwise extent from said housing structure.
4. An air blower as defined in claim 3 and further characterized in that said conduit means includes a generally cylindrical first portion rigidly secured to said housing structure, and a second portion fitted about said first portion for relative rotation about the lengthwise axis thereof, said second portion being composed of overlapping sectors arranged to permit said second portion to be selectively curved along the lengthwise extent thereof.
5. An air blower as defined in claim 1 and further characterized in that said housing structure includes an end wall disposed adjacent said motor means and formed with a central opening therein surrounded by a depending annular bearing flange, in that said motor means includes a bearing assembly mounted thereon to receive said annular bearing flange for rotatably supporting said housing structure, and in that said motor means is operatively connected to said impeller by a drive shaft extending through said central opening in said end wall of the housing structure.
6. An air blower as defined in claim 1 and further characterized in that said housing structure is provided with an inlet opening, and in that said housing structure includes an inlet opening restricting means comprising a relatively narrow fixed cross-member extending across the center of said inlet opening and at least one adjustable cross-member having a width corresponding to that of said fixed cross-member and being pivotally connected thereto adjacent said inlet opening center so that said adjustable cross-member can be selectively pivoted between an inactive position superimposed on said fixed cross-member and an active position blocking a portion of said inlet opening.
7. An air blower as defined in claim 1 and further characterized in that said impeller includes radial blades for pumping air centrifugally therefrom, in that said housing structure is generally cylindrical in shape and includes a circumferentially extending side wall surrounding the radial edges of said impeller blades, and in that said outlet opening is formed in said circumferentially extending side wall.
References Cited UNITED STATES PATENTS 1,341,405 5/1920 Woodard.
6 3,129,767 4/ 1964 McLean 170135.4 1,857,410 5/1932 Smith 15312 2,184,880 12/1939 Hodge 15-312 2,661,239 12/ 1953 Tirrell. 2,741,971 4/1956 Wheller. 2,845,303 7/1958 King 15-312 XR 3,016,559 1/ 1962 Holtzclaw 153 12.1
FOREIGN PATENTS 1,057,408 10/1953 France.
267,656 3/ 1927 Great Britain.
824,022 11/ 1959 Great Britain.
OTHER REFERENCES Advertisementp. 22 of Textile World. July 1955. AdvertisementTraveling Cleaners-Flyer of April 25,
LEONARD H. GERIN, Primary Examiner US. Cl. X.R.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US64072267A | 1967-05-23 | 1967-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3467302A true US3467302A (en) | 1969-09-16 |
Family
ID=24569452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US640722A Expired - Lifetime US3467302A (en) | 1967-05-23 | 1967-05-23 | Air blower |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3467302A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3565343A (en) * | 1969-02-03 | 1971-02-23 | Steelastic Co | Indexing carriage for a blower |
| FR2531501A1 (en) * | 1982-08-03 | 1984-02-10 | Olivier Gilbert | Combined multi-channel fan-air distributor unit |
| US4448011A (en) * | 1981-10-01 | 1984-05-15 | Abbott Laboratories | Inert gas wheel assembly |
| WO1991005956A1 (en) * | 1989-10-16 | 1991-05-02 | Institut Teoreticheskoi I Prikladnoi Mekhaniki Sibirskogo Otdelenia Akademii Nauk Sssr | Fan |
| JPH04504043A (en) * | 1989-12-22 | 1992-07-16 | イーストマン・コダック・カンパニー | High-speed compression of image data |
| US5341795A (en) * | 1993-06-30 | 1994-08-30 | Carrier Corporation | Inducer for condensing furnace |
| US5379881A (en) * | 1994-04-22 | 1995-01-10 | Andritz Sprout-Bauer, Inc. | Stream splitting apparatus |
| US5749702A (en) * | 1996-10-15 | 1998-05-12 | Air Handling Engineering Ltd. | Fan for air handling system |
| US5782605A (en) * | 1996-07-19 | 1998-07-21 | Andritz Sprout-Bauer, Inc. | Impeller for separating a conveyed stream of material |
| US7686574B1 (en) * | 2007-05-25 | 2010-03-30 | Airosa Frank L | Centrifugal impeller/propeller pump system |
| US20110182713A1 (en) * | 2010-01-22 | 2011-07-28 | Fujitsu Limited | Blower fan unit and blower fan system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1341405A (en) * | 1919-12-20 | 1920-05-25 | John H Woodard | Air-drying apparatus |
| GB267656A (en) * | 1926-01-15 | 1927-03-24 | Thomas Neilson | An improved air distributing device |
| US1857410A (en) * | 1926-09-21 | 1932-05-10 | Firth Smith Company | Apparatus for operating on spinning frames and other machines |
| US2184880A (en) * | 1938-05-23 | 1939-12-26 | Parks Cramer Co | Traveling cleaner |
| US2661239A (en) * | 1949-04-15 | 1953-12-01 | Farquhar Company Ab | Mist blower |
| FR1057408A (en) * | 1952-05-27 | 1954-03-08 | Neu Sa | Air circulating fan |
| US2741971A (en) * | 1952-06-28 | 1956-04-17 | L J Wing Mfg Co | Rotating air distributing outlets |
| US2845303A (en) * | 1955-01-06 | 1958-07-29 | Bahnson Co | Air nozzle |
| GB824022A (en) * | 1956-03-12 | 1959-11-25 | Bahnson Co | Travelling cleaner for textile machinery |
| US3016559A (en) * | 1958-11-19 | 1962-01-16 | Parks Cramer Co | Traveling cleaner with air-diverting means |
| US3129767A (en) * | 1962-01-12 | 1964-04-21 | Walter G Finch | Torque converting propeller |
-
1967
- 1967-05-23 US US640722A patent/US3467302A/en not_active Expired - Lifetime
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1341405A (en) * | 1919-12-20 | 1920-05-25 | John H Woodard | Air-drying apparatus |
| GB267656A (en) * | 1926-01-15 | 1927-03-24 | Thomas Neilson | An improved air distributing device |
| US1857410A (en) * | 1926-09-21 | 1932-05-10 | Firth Smith Company | Apparatus for operating on spinning frames and other machines |
| US2184880A (en) * | 1938-05-23 | 1939-12-26 | Parks Cramer Co | Traveling cleaner |
| US2661239A (en) * | 1949-04-15 | 1953-12-01 | Farquhar Company Ab | Mist blower |
| FR1057408A (en) * | 1952-05-27 | 1954-03-08 | Neu Sa | Air circulating fan |
| US2741971A (en) * | 1952-06-28 | 1956-04-17 | L J Wing Mfg Co | Rotating air distributing outlets |
| US2845303A (en) * | 1955-01-06 | 1958-07-29 | Bahnson Co | Air nozzle |
| GB824022A (en) * | 1956-03-12 | 1959-11-25 | Bahnson Co | Travelling cleaner for textile machinery |
| US3016559A (en) * | 1958-11-19 | 1962-01-16 | Parks Cramer Co | Traveling cleaner with air-diverting means |
| US3129767A (en) * | 1962-01-12 | 1964-04-21 | Walter G Finch | Torque converting propeller |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3565343A (en) * | 1969-02-03 | 1971-02-23 | Steelastic Co | Indexing carriage for a blower |
| US4448011A (en) * | 1981-10-01 | 1984-05-15 | Abbott Laboratories | Inert gas wheel assembly |
| FR2531501A1 (en) * | 1982-08-03 | 1984-02-10 | Olivier Gilbert | Combined multi-channel fan-air distributor unit |
| WO1991005956A1 (en) * | 1989-10-16 | 1991-05-02 | Institut Teoreticheskoi I Prikladnoi Mekhaniki Sibirskogo Otdelenia Akademii Nauk Sssr | Fan |
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| JPH04504043A (en) * | 1989-12-22 | 1992-07-16 | イーストマン・コダック・カンパニー | High-speed compression of image data |
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| US5749702A (en) * | 1996-10-15 | 1998-05-12 | Air Handling Engineering Ltd. | Fan for air handling system |
| US7686574B1 (en) * | 2007-05-25 | 2010-03-30 | Airosa Frank L | Centrifugal impeller/propeller pump system |
| US20100215487A1 (en) * | 2007-05-25 | 2010-08-26 | Airosa Frank L | Centrifugal impeller/propeller pump system |
| US8128345B2 (en) * | 2007-05-25 | 2012-03-06 | Jamesway Farm Equipment Inc. | Centrifugal impeller/propeller pump system |
| US20110182713A1 (en) * | 2010-01-22 | 2011-07-28 | Fujitsu Limited | Blower fan unit and blower fan system |
| US8678748B2 (en) * | 2010-01-22 | 2014-03-25 | Fujitsu Limited | Blower fan unit and blower fan system |
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