Patent US3704002A successfully refreshed from Google Patents.
US3704002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disconnectable couplings
Assignee: Individual
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Filing: 1971-08-11
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Granted: 1972-11-28
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Expires: 1991-08-11
Abstract
Abstract A readily connectable and disconnectable coupling comprising a first member adapted to be connected to a source of fluid under pressure and a second member adapted to be connected to a fluid consuming or control unit, one of the members having a flow control valve urged towards a seat in the fluid flow passageway by resilient means whilst the other coupling member is provided with a valve actuating member and fluid sealing means, the members being coupled together by abutment members associated with one member each engaging a groove formation in th other member, groove formations being such that initial axial movement followed by a partial rotative movement between the two members causes the sealing means to effect a fluid-tight seal with said passageway and further axial movement followed by a partial rotative movement causes the valve actuating member to engage and open said valve.
Inventors
- 👤 Maciej Stanislaw Skarzynski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:12
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22; F16L37/23; F16L37/24; F16L37/244; F16L37/248; F16L37/28; F16L37/38; F16L37/40; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87973
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
143 words
A readily connectable and disconnectable coupling comprising a first member adapted to be connected to a source of fluid under pressure and a second member adapted to be connected to a fluid consuming or control unit, a flow control valve in one of the members urged towards a seat in a fluid flow passageway by resilient means, a valve actuating member and fluid sealing means in the other coupling member, the members being coupled together by abutment members associated with one member each engaging a groove formation in the other member, the groove formations being such that initial axial movement followed by a partial rotative movement between the two members causes the sealing means to effect a fluidtight seal with said passageway and further axial movement followed by a partial rotative movement causes the valve actuating member to engage and open said valve.
Claim 2
Dependent Claim
143 words
A readily connectable and disconnectable coupling comprising a first member adapted to be connected to a source of fluid under pressure and a second member adapted to be connected to a fluid consuming or control unit, a flow control valve in one of the members urged towards a seat in a fluid flow passageway by resilient means, a valve actuating member and fluid sealing means in the other coupling member, the members being coupled together by abutment members associated with one member each engaging a groove formation in the other member, the groove formations being such that initial axial movement followed by a partial rotative movement between the two members causes the sealing means to effect a fluidtight seal with said passageway and further axial movement followed by a partial rotative movement causes the valve actuating member to engage and open said valve.
Claim 3
Dependent Claim
51 words
A coupling as claimed in claim 1, wherein said one member is provided with a peripheral flange and a co-axially disposed boss which slidably receives said valve and forms said passageway, the flange and boss forming an annular recess therebetween with said valve seat positioned at one end of said boss.
Claim 4
Dependent Claim
22 words
A coupling as claimed in claim 2, wherein said groove formations are equally spaced around the exterior surface of said peripheral flange.
Claim 5
Dependent Claim
48 words
A coupling as claimed in claim 3, wherein said other coupling member is provided with a peripheral flange and a co-axially disposed boss housing said valve actuating member, the flange and boss forming an annular recess therebetween which, in use, receives the peripheral flange of said one member.
Claim 6
Dependent Claim
36 words
A coupling as claimed in claim 4, wherein said fluid sealing means comprises an O-ring accommodated in the boss of said other coupling member which, in use, sealingly engages the boss of said other one member.
Claim 7
Dependent Claim
44 words
A coupling as claimed in claim 5, wherein said abutment members each comprises a ball accommodated in an aperture of tapered cross-section formed in the peripheral flange of said other coupling member, the balls being retained in the apertures by a surrounding resilient sleeve.
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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |