Patent US3784239A successfully refreshed from Google Patents.
US3784239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed, filament-wound plastic sleeve
Assignee: Ameron Inc
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Filing: 1971-09-07
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Granted: 1974-01-08
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Expires: 1991-09-07
Abstract
Abstract A sealing ring joint for non-ferrous pipe or tubing is formed by fixing an external engaging sleeve to the end of a section of pipe or tubing and by fixing a collar member to the end of another section of pipe or tubing. External engaging means on the sleeve coact with internal engaging means in the collar to fasten the sleeve to the collar, while mating tapered sections on the sleeve and the collar coact to position, fasten and seal the sleeve in the collar when the external engaging means is engaged with the internal engaging surface of the collar. A sealing ring groove disposed on the tapered section within the collar positions a sealing ring which coacts with the external engaging sleeve and the sealing ring groove of the collar to effectively provide a pressure seal for the joint. The collars are made by a filament winding process in which die members, including at least one deformable die member, are arranged into collar-forming sets which are assembled in series on a mandrel.
Inventors
- 👤 J Carter
- 👤 M Neher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:38
CPC Classifications
F; F16; F16L; F16L47/00; F16L47/16; B; B29; B29C; B29C33/00; B29C33/44; B29C33/52; B29C70/00; B29C70/68; B29C70/86
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
A joint for non-ferrous pipe comprising a first pipe section, a second pipe section, a sleeve having an externally threaded section adjacent one end thereof and an outer tapered section adjacent the threaded section, the sleeve surrounding and being bonded to the first pipe section so that the externally threaded section is inward of the end of the pipe section, a filament wound collar surrounding and bonded to an end of the second pipe section, the collar having an internally threaded section adjacent one end thereof for mating engagement with said externally threaded section, a first inner tapered section narrowing toward the opposite end of the collar adjacent the internally threaded section for mating engagement with said outer tapered section, an internal annular groove in the wall of the collar at said inner tapered section, and a sealing ring in the groove for engagement with the outer tapered section.
Claim 2
Dependent Claim
149 words
A joint for non-ferrous pipe comprising a first pipe section, a second pipe section, a sleeve having an externally threaded section adjacent one end thereof and an outer tapered section adjacent the threaded section, the sleeve surrounding and being bonded to the first pipe section so that the externally threaded section is inward of the end of the pipe section, a filament wound collar surrounding and bonded to an end of the second pipe section, the collar having an internally threaded section adjacent one end thereof for mating engagement with said externally threaded section, a first inner tapered section narrowing toward the opposite end of the collar adjacent the internally threaded section for mating engagement with said outer tapered section, an internal annular groove in the wall of the collar at said inner tapered section, and a sealing ring in the groove for engagement with the outer tapered section.
Claim 3
Dependent Claim
60 words
A joint for non-ferrous pipe according to claim 1 wherein the collar includes a second inner tapered section between said first inner tapered section and said opposite end of the collar, the second inner tapered section having a widening taper toward said opposite end of the collar and in engagement with a matingly tapered surface of said second pipe section.
Claim 4
Dependent Claim
85 words
A filament wound collar for assembly with a pipe section, the collar comprising an internally threaded section adjacent one end of the collar, an inner tapered section narrowing toward the opposite end of the collar adjacent the internally threaded section, an internal groove having a sealing ring therein in said tapered section, and a second inner tapered section extending from said opposite end of the collar inwardly toward said inner tapered section, the second inner tapered section widening toward said opposite end of the collar.
Claim 5
Dependent Claim
85 words
A filament wound collar for assembly with a pipe section, the collar comprising an internally threaded section adjacent one end of the collar, an inner tapered section narrowing toward the opposite end of the collar adjacent the internally threaded section, an internal groove having a sealing ring therein in said tapered section, and a second inner tapered section extending from said opposite end of the collar inwardly toward said inner tapered section, the second inner tapered section widening toward said opposite end of the collar.
Claim 6
Dependent Claim
31 words
The filament wound collar according to claim 3 wherein the wall of the collar having the tapered section widening toward said opposite end of the collar has a relatively constant thickness.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |