US3779587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube end fitting
Assignee: Individual
•
Filing: 1972-08-23
•
Granted: 1973-12-18
•
Expires: 1992-08-23
Abstract
Abstract A fitting for mounting to tube ends by actuating quick operating means to translate a ram element inside a body housing against a tubular plug having an opposite end which sealingly compresses against the end of a smooth wall tube. The fitting more advantageously includes a split collet which clamps the circumference of the smooth wall tube simultaneously with compressing the tubular plug by the quick operating means, such as a torque transmitting lever.
Inventors
- 👤 W Racine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:36
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/12; F16L37/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
236 words
A fitting for end sealing of a smooth wall tube, including a housing having a tubular head threadably engaged to a tubular body, a passageway in said housing, an entry for tube end in said tubular head, an inside taper at said tube entry, a split collet member positioned next to said inside taper, said split collet member having a forward outside taper complementary to the inside taper at said tube entry so that said collet assumes a clamping relationship to the smooth wall tube upon receiving force directed towards the housing body tube entry, an elastomeric sealing plug positioned partly within said collet member and having a substantial portion extending out of said collet member, an annular spacer positioned around said sealing plug and next to said split collet member, said spacer terminating short of the end of the sealing plug extending out of the collet, a ram element in the housing passageway, said ram element having an annular outer face to engage said spacer and an annular inner face to engage said sealing plug, and quick operating means mounted to said tubular body to translate said ram element within the housing passageway against said spacer and sealing plug so that said sealing plug assumes a sealing relationship with the terminal end of said smooth wall tube and said split collet member is moved into clamping relationship with the outside of said smooth wall tube.
Claim 2
Dependent Claim
236 words
A fitting for end sealing of a smooth wall tube, including a housing having a tubular head threadably engaged to a tubular body, a passageway in said housing, an entry for tube end in said tubular head, an inside taper at said tube entry, a split collet member positioned next to said inside taper, said split collet member having a forward outside taper complementary to the inside taper at said tube entry so that said collet assumes a clamping relationship to the smooth wall tube upon receiving force directed towards the housing body tube entry, an elastomeric sealing plug positioned partly within said collet member and having a substantial portion extending out of said collet member, an annular spacer positioned around said sealing plug and next to said split collet member, said spacer terminating short of the end of the sealing plug extending out of the collet, a ram element in the housing passageway, said ram element having an annular outer face to engage said spacer and an annular inner face to engage said sealing plug, and quick operating means mounted to said tubular body to translate said ram element within the housing passageway against said spacer and sealing plug so that said sealing plug assumes a sealing relationship with the terminal end of said smooth wall tube and said split collet member is moved into clamping relationship with the outside of said smooth wall tube.
Claim 3
Dependent Claim
67 words
A fitting which includes the features of claim 1 above, wherein said ram element includes a chamber and said chamber being defined by a forward annular edge of the ram element, said inner and outer faces being defined by said ram edge, and biasing means within said ram element chamber engaging said sealing plug and said chamber to provide back force on translation of said ram element.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |