US3711129A - Resilient coupling - Google Patents
Resilient coupling Download PDFInfo
- Publication number
- US3711129A US3711129A US00060248A US3711129DA US3711129A US 3711129 A US3711129 A US 3711129A US 00060248 A US00060248 A US 00060248A US 3711129D A US3711129D A US 3711129DA US 3711129 A US3711129 A US 3711129A
- Authority
- US
- United States
- Prior art keywords
- sleeve
- ribs
- outside
- central
- sections
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- F16L21/00—Joints with sleeve or socket
- F16L21/002—Sleeves or nipples for pipes of the same diameter; Reduction pieces
- F16L21/005—Sleeves or nipples for pipes of the same diameter; Reduction pieces made of elastic material, e.g. partly or completely surrounded by clamping devices
Definitions
- ABSTRACT [22] Filed: Aug. 3, 1970 A resilient coupling for encircling the adjacent ends of pp NO: 60,248 substantially axially aligned, abutting, smooth wall p1pe sect1ons, comprising a synthetlc resin, in ection molded, sleeve which offers substantial reduction in [52] U.S. Cl ..285/235, 285/369 weight and material with substantially no loss in beam [51] Int.
- the present invention provides coupling means for encircling the adjacent ends of at least two substantially, axially aligned, abutting, smooth wall pipe sections.
- the coupling means comprises a resilient, plastic sleevehaving a smooth.
- each of the thin uniform sections is reinforced by a plurality of ribs extending outwardly from the central surface and parallel to the axes of the pipe sections.
- the ribs are tapered so that they provide maximum reinforcement substantially adjacent the butted pipe sections and essentially no reinforcement at the ends of the sleeve.
- the ribs on the uniform sections may be tapered downwardly from a maximum height adjacent the ends of the central surface to a point substantially tangent with the surface of the uniform sections.
- a head or reinforced edge may also be provided at each end of the plastic sleeve to prevent chipping during shipping, handling and installation.
- the intemal surface of the sleeve maybe provided with a slight conical configuration or taper extending from each end and meeting at substantially the center of the sleeve.
- stop means may be provided projecting from the inside surface of the sleeve at the center thereof so as to center the pipe sections within the co-operating coupling means.
- the stop means may be intermittent and coplanar, or it may be continuous around the interior surface of the sleeve.
- the resilient plastic sleeve may, of course, be made out of any suitable plastic, including both thermosetting and thermoplastic types.
- the plastic sleeve may also be fiber reinforced.
- the pipe sections to be joined may be of any material, but commonly are composed of plastic, fiber, or metal. If the pipe sections are plastic, they may be solvent welded, chemically bonded, or heat bonded to the plastic sleeve to provide a leak resistant joint. Likewise, if the pipe sections are fiber or metal, they may be adhesive bonded to the plastic sleeve to provide a leak resistant joint.
- the plastic sleeve may also be injection molded, in which case the walls of the ribs and the ends of the central surface are preferably slightly tapered to facilitat removal of the sleeve from the mold.
- FIG. 1 is a cross sectional view showing two substantially, axially aligned, abutting, smooth wall pipe sections and cooperating coupling means of the present invention.
- FIG. 2 is a cross sectional view taken on the line 22 I of FIG 1.
- FIG. 3 is a cross sectional view taken on the line 3-3 of FIG. 1.
- FIGS. 4 and 5 are enlargements of details of. the coupling means of FIGS. 1 and 2. 7
- FIG. 6 is a cross sectional view similar to FIG. 2. showing the coupling means of the present invention cooperating with smooth wall, truss pipe sections.
- FIG. 7 is a cross sectional view similar to FIG. 4
- FIG.'8 is a cross sectionalview similar to FIG. 4 showing the coupling means of the present invention having a non-uniform wall thickness on either side of the central surface.
- FIGS. 9 and 10 are cross sectional views similar to FIG. 2 showing stop means projecting from the inside surface of the coupling means.
- FIG. 1 the resilient pipe sleeve 10 of the present invention is shown encircling the abutted surface 16, making up the major part of the sleeve 10.
- Each of the thin sections 18 are reinforced by a plurality of ribs 20 on the outside of the sleeve extending downwardly from the central surface 16 and parallel to the axes of the pipe sections 12 and 14.
- the ribs are tapered so that they provide maximum reinforcement substantially adjacent the butted pipe sections 12 and 14 and essentially no reinforcement at the ends of the sleeve 10; In practice, this preferably means that the ribs 20 are tapered from a maximum height at the central cylindrical surface 16 of the sleeve 10 to a point substantially at or near each end of the sleeve 10 where they are substantially level or tangent with the sections 18 as shown in FIG. 4.
- the taper of the ribs 20 may vary, such as shown in FIG. 7, as desired.
- a bead 22 is provided at each end of the sleeve 10 to prevent chipping of the sleeve during shipping, handling and installation.
- chipping may also be prevented by providing a reinforced edge 23 at each end of the sleeve 10, as shown in FIG. 7.
- the interior of the sleeve 10 is preferably provided with a smooth wall having a slight conical configuration or taper from each end thereof to the center of the sleeve, as shown at 24.As will be more fully explained hereinafter, such conical configuration or taper provides for easier field application.
- the interior of the sleeve 10 may also be provided with stop means 28 projecting from the inside surface at the center thereof, as shown in FIGS. 9 and 10, so as to center the pipe sections 12 and 14 within the cooperating coupling means 10.
- the stop means 28 may be intermittent and coplanar, as shown in FIG. 10, or it may be continuous around the interior surface of the sleeve, as shown in FIG. 9. If thepipe sections to be joined are smooth wall truss pipe 30, andfit is desired to make a leak resistant joint, the stop means 28 should be continuous as shown in FIG. 9. 1
- FIGS. 4 and 5 show enlarged details of the preferred coupling means 10.
- the smooth central cylindrical surface 16 may be slightly tapered.
- the walls 200 of the ribs 20 may be" slightly tapered. In this manner the removal of the plastic sleeve 10 from a mold is facilitated if the sleeve is injection molded.
- the pipe manufacturing the present invention comprises a plastic sleeve 10, it I may be utilized to joineither smooth wall, plastic truss pipe sections, as shown in FIG. 6, or smooth, solid wall as a separate component. Then, during installation in the field, the opposite end of a section of truss pipe is,
- the interior ofthe pipe sleeve 10 may be either solvent welded, chemically bonded, heat bonded or adhesively bonded to the pipe sections, depending, of course, upon whether the pipe sections are plastic, fiber or metal, respectively. Any suitable solvent, chemical bonding agentor adhesive may be utilized.
- the pipe sleeve 10 may be made of any suitable plastic. However, it has been found that ABS plastic is particularly satisfactory. Additionally, it is believed that favorable results would be achievedif the plastic sleeve 10 were made of vinyl plastic, high density polyethylene, fiber reinforced.
- a resilient coupling comprising a synthetic resin, injection molded, sleeve having an interior cylindrical bore provided with a slight conical configuration from each end thereof to the center of said sleeve, a smooth central cylindrical surface on the outside thereof and a thin, substantially uniform wall section, on either side of said central surface, making up the major part of the outside of said sleeve, eachof'said thin sections being reinforced by aplurality of circumferentially spaced solid ribs on the outside of said sleeve extending outwardly from said central surface and parallel to the axis of said coupling,"said ribs being tapered from a maximum height-adjacent the ends of said central surface to a point closely adjacent each end of said sleeve where they intersect the surface of said uniformsections, so that they provide maximum reinforcement substantially at the center of said smooth central cylindrical surface and minimum reinforcement at the ends of said sleeve, the walls of said ribs being slightly tapered to facilitate removal of said sleevefrom
- stop means project from the interior surface of said sleeve at the center thereof, said stop means being continuous around the interior surface of said sleeve.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6024870A | 1970-08-03 | 1970-08-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3711129A true US3711129A (en) | 1973-01-16 |
Family
ID=22028309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00060248A Expired - Lifetime US3711129A (en) | 1970-08-03 | 1970-08-03 | Resilient coupling |
Country Status (1)
Country | Link |
---|---|
US (1) | US3711129A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0044719A1 (en) * | 1980-07-18 | 1982-01-27 | Btr Industries Limited | Improvements in apparatus for sealing pipes |
USRE32782E (en) * | 1978-07-28 | 1988-11-15 | Massachusetts Institute Of Technology | Method for determining in vivo, bone strength |
US4930511A (en) * | 1988-05-11 | 1990-06-05 | Lunar Radiation, Inc. | Ultrasonic densitometer device and method |
US5558371A (en) * | 1994-09-26 | 1996-09-24 | Respironics, Inc. | Resuscitator |
US5615681A (en) * | 1994-12-22 | 1997-04-01 | Aloka Co., Ltd | Method for measuring speed of sound in tissue and tissue assessment apparatus |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1984347A (en) * | 1933-11-03 | 1934-12-11 | Sev Inc | Faucet connection |
US2184376A (en) * | 1937-06-10 | 1939-12-26 | Walter O Beyer | Coupling device |
US2374138A (en) * | 1941-02-19 | 1945-04-17 | Hugh W Sanford | Pipe joint |
US3212799A (en) * | 1962-05-22 | 1965-10-19 | Johns Manville | Pipe coupling |
US3284110A (en) * | 1963-10-17 | 1966-11-08 | Koppers Co Inc | Coupling means for tubular members |
US3430989A (en) * | 1967-12-20 | 1969-03-04 | Pacific Clay Products | Pipe coupling |
US3453006A (en) * | 1966-03-28 | 1969-07-01 | C & L Ind Inc | Conduit coupling |
US3502356A (en) * | 1967-11-02 | 1970-03-24 | Hancock Brick & Tile Co | Plain end sewer pipes and coupling for same |
-
1970
- 1970-08-03 US US00060248A patent/US3711129A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1984347A (en) * | 1933-11-03 | 1934-12-11 | Sev Inc | Faucet connection |
US2184376A (en) * | 1937-06-10 | 1939-12-26 | Walter O Beyer | Coupling device |
US2374138A (en) * | 1941-02-19 | 1945-04-17 | Hugh W Sanford | Pipe joint |
US3212799A (en) * | 1962-05-22 | 1965-10-19 | Johns Manville | Pipe coupling |
US3284110A (en) * | 1963-10-17 | 1966-11-08 | Koppers Co Inc | Coupling means for tubular members |
US3453006A (en) * | 1966-03-28 | 1969-07-01 | C & L Ind Inc | Conduit coupling |
US3502356A (en) * | 1967-11-02 | 1970-03-24 | Hancock Brick & Tile Co | Plain end sewer pipes and coupling for same |
US3430989A (en) * | 1967-12-20 | 1969-03-04 | Pacific Clay Products | Pipe coupling |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE32782E (en) * | 1978-07-28 | 1988-11-15 | Massachusetts Institute Of Technology | Method for determining in vivo, bone strength |
EP0044719A1 (en) * | 1980-07-18 | 1982-01-27 | Btr Industries Limited | Improvements in apparatus for sealing pipes |
US4930511A (en) * | 1988-05-11 | 1990-06-05 | Lunar Radiation, Inc. | Ultrasonic densitometer device and method |
US5558371A (en) * | 1994-09-26 | 1996-09-24 | Respironics, Inc. | Resuscitator |
US5615681A (en) * | 1994-12-22 | 1997-04-01 | Aloka Co., Ltd | Method for measuring speed of sound in tissue and tissue assessment apparatus |
US5817018A (en) * | 1994-12-22 | 1998-10-06 | Aloka Co., Ltd. | Method for measuring speed of sound in tissue and tissue assessment apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4614369A (en) | Connector assembly for fiber-reinforced plastic pipe members | |
US4619470A (en) | Flange connection assembly for fiber-reinforced plastic pipe members | |
US4390383A (en) | Method of making plastic pipes having walls with lengthwise extending channels | |
US2985469A (en) | Snap-fit plastic pipe joint | |
US3809412A (en) | Pipe couplings | |
US5009737A (en) | Method of joining pipes at their ends to form a pipeline | |
US3483896A (en) | Composite reinforced plastic pipe | |
US4670207A (en) | Method of bonding plastic pipes | |
US3462175A (en) | Connector for unthreaded pipe,and method of making the same | |
JPS62110094A (en) | Flange connector for fiber reinforced plastic pipe section | |
US7237810B2 (en) | Plastic pipe adhesive joint | |
US4229028A (en) | Pipe coupler | |
US3387864A (en) | Pipe coupling | |
US3807776A (en) | Coupling collet and gland for metal to plastic conduit | |
CA2167212A1 (en) | A method of joining reinforced thermoplastic pipes | |
US3018120A (en) | Pipe joint and method of making the same | |
US3711129A (en) | Resilient coupling | |
US2795440A (en) | Joint and method of uniting carbon bodies | |
US4709946A (en) | Lined pipe joint | |
CA1136672A (en) | Adapter for connecting plastic pipe system to cast iron pipe system | |
US2653040A (en) | Pipe coupling | |
US2370193A (en) | Fibrous conduit and method of manufacture | |
US3830530A (en) | Pipe couplings | |
US4660865A (en) | Method and apparatus for coupling a connector to thermoplastic pipe | |
US1257852A (en) | Pipe-coupling. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MELLON BANK (EAST), NATIONAL ASSOCIATION,STATELESS Free format text: SECURITY INTEREST;ASSIGNOR:CONTECH CONSTRUCTION PRODUCTS INC., AN OH. CORP.;REEL/FRAME:004600/0031 Effective date: 19860721 Owner name: CONTECH CONSTRUCTION PRODUCTS INC., A OHIO CORP.,O Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ARMCO INC.;REEL/FRAME:004599/0955 Effective date: 19860722 Owner name: MELLON BANK (EAST), NATIONAL ASSOCIATION Free format text: SECURITY INTEREST;ASSIGNOR:CONTECH CONSTRUCTION PRODUCTS INC., AN OH. CORP.;REEL/FRAME:004600/0031 Effective date: 19860721 Owner name: CONTECH CONSTRUCTION PRODUCTS INC., 1001 GROVE STR Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ARMCO INC.;REEL/FRAME:004599/0955 Effective date: 19860722 |