US3645294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing coupling
Assignee: Eaton Aeroquip LLC
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Filing: 1970-10-19
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Granted: 1972-02-29
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Expires: 1990-10-19
Abstract
Abstract A self-sealing coupling for a manifold, so constructed as to permit slight misalignment of the manifold and accessory ports. The coupling comprises male and female cartridges which are mounted on the manifold and accessory members. Each cartridge comprises a housing mountable in the port, a ball segment body rockably carried by the housing, and a self-sealing coupling valve mounted in the body.
Inventors
- 👤 Alan R Allread
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:23
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/02; F16L27/04; F16L29/00; F16L37/00; F16L37/28; F16L37/30; F16L37/32; F16L37/34; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87941; Y10T137/87949
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
132 words
In a self-sealing fluid coupling for connecting two members having ports which may not be exactly aligned, first and second cartridges, each cartridge having a housing mounted in one of said members in alignment with the port thereof, bodies mounted in said housings and having ball segment portions which permit limited rocking movement of the bodies with respect to the housings, means retaining the bodies in the housings, valves mounted in said bodies and connected to said ports whereby the valves are normally held in closed position by fluid pressure, and interengaging surfaces on said valves and bodies responsive to the mating of said cartridges to open the valves, thereby permitting fluid flow between said ports, said ball segments permitting the interengaging surfaces to be properly aligned despite misalignment of said ports.
Claim 2
Dependent Claim
132 words
In a self-sealing fluid coupling for connecting two members having ports which may not be exactly aligned, first and second cartridges, each cartridge having a housing mounted in one of said members in alignment with the port thereof, bodies mounted in said housings and having ball segment portions which permit limited rocking movement of the bodies with respect to the housings, means retaining the bodies in the housings, valves mounted in said bodies and connected to said ports whereby the valves are normally held in closed position by fluid pressure, and interengaging surfaces on said valves and bodies responsive to the mating of said cartridges to open the valves, thereby permitting fluid flow between said ports, said ball segments permitting the interengaging surfaces to be properly aligned despite misalignment of said ports.
Claim 3
Dependent Claim
24 words
The combination according to claim 1, said housings having threaded portions mountable in counterbores of said ports, and annular seals engageable with said counterbores.
Claim 4
Dependent Claim
26 words
The combination according to claim 1, said means for retainIng the bodies in position comprising bearings mounted in said housings and retaining rings holding said bearings.
Claim 5
Dependent Claim
23 words
The combination according to claim 3, further provided with seals carried by said bodies and engageable with the interior surfaces of said housings.
Claim 6
Dependent Claim
54 words
The combination according to claim 1, one of said valves being fixed to its body and extending outwardly therefrom, a sleeve slidably mounted on said valve and engaging a seat thereon to close the valve, and fluid conduit means leading to said sleeve whereby fluid pressure will urge the sleeve to its closed position.
Claim 7
Dependent Claim
26 words
The combination according to claim 5, further provided with a spring urging said sleeve to its closed position, and a seal between said sleeve and body.
Claim 8
Dependent Claim
61 words
The combination according to claim 1, the valve in a first of said cartridges being slidably mounted in its body and engaging a seat formed in the body, fluid pressure in the body urging said valve to its closed position, and a seal carried by said body and engageable with a portion of the second cartridge when the cartridges are united.
Claim 9
Dependent Claim
96 words
The combination according to claim 7, the valve in said second cartridge being fixed to its body and engageable with said slidably mounted valve of the first cartridge when the cartridges are united to open the latter valve, a sleeve slidably mounted on said fixed valve and normally urged to a position closing the valve, said sleeve engaging the seal carried by said first cartridge body when the cartridges are inserted, and interengaging surfaces on said sleeve and said first cartridge body causing said sleeve to move to an open position when the cartridges are united.
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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |