US3582115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for coupling a pipe to a component carrying fluid
Assignee: Mannin Engineering Ltd
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Filing: 1968-01-03
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Granted: 1971-06-01
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Expires: 1988-01-03
Abstract
Abstract Means for coupling a pipe to a component comprises a hollow stud which is a sliding fit on the pipe, said hollow stud being headed at one end and provided with an externally screwed shank at the other end to thread into a tapped bore in the component. Gripping and sealing means including a longitudinally split portion and a nonsplit portion are interposed between the end of the screwed shank and the seat in the component, so that when the stud is screwed into the component end load is applied by the screwed shank to the gripping and sealing means to cause the nonsplit portion to seal against the pipe and the seat and the longitudinally split portion to grip the pipe.
Inventors
- 👤 John Henry Clague
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:11
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/06; F16L19/07; F16L19/061; F16L19/065; F16L19/08
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
208 words
Means for coupling a pipe to a component comprising a hollow stud which is a sliding fit on the pipe, said hollow stud being headed at one end and provided with an externally screwed shank at the other end to thread into a tapped bore in the component, sealing means comprising an annular nonsplit sealing member to provide a seal between the pipe and a seat in the component, a longitudinally split pipe-gripping collar adapted to surround the pipe and to grip and retain the latter against hydraulic end loading, screwing the hollow stud into the component resulting in radial compression of the collar to grip the pipe and in compression of the sealing member against the seat to provide said seal, the split of said collar being sufficiently wide to permit the sealing means and split collar to be removably sprung into engagement with the shank of the hollow stud to provide a one-piece assembly, with the stud, collar and sealing means of the assembly maintained in alignment and the elastic limit of the sealing means not being exceeded upon said compression so that by mere slackening of the stud the pipe is released and can be withdrawn, and refitted, without removing the stud from the component.
Claim 2
Dependent Claim
208 words
Means for coupling a pipe to a component comprising a hollow stud which is a sliding fit on the pipe, said hollow stud being headed at one end and provided with an externally screwed shank at the other end to thread into a tapped bore in the component, sealing means comprising an annular nonsplit sealing member to provide a seal between the pipe and a seat in the component, a longitudinally split pipe-gripping collar adapted to surround the pipe and to grip and retain the latter against hydraulic end loading, screwing the hollow stud into the component resulting in radial compression of the collar to grip the pipe and in compression of the sealing member against the seat to provide said seal, the split of said collar being sufficiently wide to permit the sealing means and split collar to be removably sprung into engagement with the shank of the hollow stud to provide a one-piece assembly, with the stud, collar and sealing means of the assembly maintained in alignment and the elastic limit of the sealing means not being exceeded upon said compression so that by mere slackening of the stud the pipe is released and can be withdrawn, and refitted, without removing the stud from the component.
Claim 3
Dependent Claim
57 words
Coupling means according to claim 1, wherein said collar has an external taper at the end remote from the sealing means and said hollow stud has an internal taper which engages said external taper, as the stud if screwed into the component, to compress said collar radially on to the pipe to grip and retain the latter.
Claim 4
Dependent Claim
75 words
Coupling means according to claim 2, wherein said internal taper is formed towards the free end of the screwed shank of the hollow stud at the back of an internal annular end recess into which the split collar is sprung for removable attachment thereof, thus reserving for the remaining major length of the stud shank the maximum wall thickness available between the root diameter of the shank thread and the outer diameter of the tube.
Claim 5
Dependent Claim
45 words
Coupling means according to claim 1, wherein said sealing means comprise said sealing member and a metallic seal carrier, and sealing member being nonmetallic and forming with the carrier a one-piece subassembly, and the split collar is removably sprung into engagement with said seal carrier.
Claim 6
Dependent Claim
193 words
Means for coupling a pipe to a component, comprising a hollow stud which is a sliding fit on the pipe, said hollow stud being headed at one end and provided with an externally screwed shank at the other end to thread into a tapped bore in the component, a longitudinally split pipe-gripping collar to surround and grip the pipe whereby to retain the latter against hydraulic end loading, and nonsplit sealing means adapted to surround the pipe and to provide upon compression a seal between the latter and a seat in the component with the elastic limit of the sealing means not being exceeded upon said compression, the shank of the stud having an internal taper and the collar an external end taper, said tapers engaging and cooperating to compress the collar radially to grip the pipe as the stud is screwed into the component, the stud shank, collar and sealing means being arranged in tandem and the resilience of the split collar and the width of the split of said collar being sufficient to provide a removable attachment of the collar to the shank and of the sealing means to the collar.
Claim 7
Dependent Claim
193 words
Means for coupling a pipe to a component, comprising a hollow stud which is a sliding fit on the pipe, said hollow stud being headed at one end and provided with an externally screwed shank at the other end to thread into a tapped bore in the component, a longitudinally split pipe-gripping collar to surround and grip the pipe whereby to retain the latter against hydraulic end loading, and nonsplit sealing means adapted to surround the pipe and to provide upon compression a seal between the latter and a seat in the component with the elastic limit of the sealing means not being exceeded upon said compression, the shank of the stud having an internal taper and the collar an external end taper, said tapers engaging and cooperating to compress the collar radially to grip the pipe as the stud is screwed into the component, the stud shank, collar and sealing means being arranged in tandem and the resilience of the split collar and the width of the split of said collar being sufficient to provide a removable attachment of the collar to the shank and of the sealing means to the collar.
Claim 8
Dependent Claim
45 words
Coupling means according to claim 5, wherein said sealing means comprise a nonsplit metallic carrier and a nonmetallic sealing member providing a one-piece subassembly, the stud shank, collar, seal carrier and sealing member being arranged in tandem, with the carrier removably attached to the collar.
Claim 9
Dependent Claim
47 words
Coupling means according to claim 5, wherein the collar clips inside the free end of said shank and has a peripheral external lip, adjacent said external taper, which engages an internal recess adjacent said internal taper to provide the removable attachment of the collar to the stud.
Claim 10
Dependent Claim
73 words
Coupling means according to claim 5, wherein said pipe-gripping collar clips inside the adjacent end of said sealing means for the removable attachment thereof, said collar having a peripheral external lip adjacent the end remote from the screwed shank and said sealing means having an internal recess which is engaged by said lip when the collar and sealing means are sprung into engagement utilizing the natural resilience and radial compressibility of the collar.
Claim 11
Dependent Claim
57 words
Coupling means according to claim 5, wherein said sealing means comprise a nonmetallic sealing member which seals against said seat in the component and a metallic seal carrier by which the sealing member is carried, said carrier being sprung into engagement with the adjacent end of the collar to provide the removable attachment of the sealing means.
Claim 12
Dependent Claim
112 words
Coupling means according to claim 9, wherein said nonmetallic sealing member clips on to the adjacent end of the carrier from which end the sealing member projects for engagement with said seat in the component, when the stud is fully tightened said end of the carrier engaging the component so that the carrier, the seat and the tube define between them a closed annular recess in which the sealing member is confined so as to be compressed into sealing engagement with the seat and the tube, such confinement preventing the sealing member from being extruded from its sealing position along the tube or the tapped bore under hydraulic pressure within the component.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |