Patent US4475751A successfully refreshed from Google Patents.
US4475751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupler
Assignee: Faurecia Clarion Electronics Co Ltd
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Filing: 1981-03-11
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Granted: 1984-10-09
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Expires: 2001-03-11
Abstract
Abstract A coupler comprising a female coupling member and a male coupling member adapted to be fitted therein for coupling air conduits of two systems, i.e., an air pressure supply system and a control system thereof, wherein the coupling members have openings of a first and a second air conduit, respectively, at respective central portions of the mating faces and annular grooves concentric with and outer than the respective openings; third and fourth air conduits open at the respective grooves; the openings of the first and the second air conduit are connected with each other; an o-ring is disposed at the connecting portion between sidewalls of the respective openings; the annular grooves of the respective coupling members are engaged with each other; a second o-ring is disposed at the engaging portion of outer walls of the respective grooves; and the engaging portion of the inner walls of the grooves are air-tightly sealed by the first o-ring.
Inventors
- 👤 Kyoshin Nishimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:13
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/56; B; B60; B60D; B60D1/00; B60D1/58; B60D1/62; B60D1/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
282 words
A coupler which comprises: a female coupling member; a male coupling member adapted to be fitted in said female coupling member; a first air conduit formed in said female coupling member; a second air conduit formed in said male coupling member and adapted to communicate with said first air conduit; a first groove formed on said female coupling member at a position outside of said first air conduit; a second groove formed on said male coupling member at a position outside of said second air conduit; a third air conduit in said female coupling member communicating with said first groove; a fourth air conduit in said male coupling member communicating with said second groove, said first groove being defined by an outer wall formed on said female coupling member at a position outside of the opening of said first air conduit and a side wall thereof; said second groove being defined by an outer wall formed on said male coupling member at a position outside of the opening of said second air conduit and a side wall thereof; said outer wall of said second groove being in contact with said outer wall of said first groove; said sidewall of said second air conduit being in contact with said sidewall of said first air conduit; a first O-ring disposed between the outer wall of the first groove and the outer wall of the second groove; and a second O-ring disposed between the sidewall of the first air conduit and the sidewall of the second air conduit so that said first and second O-rings provide a complete isolating and sealing action for said first and second conduits and for said third and fourth conduits.
Claim 2
Dependent Claim
282 words
A coupler which comprises: a female coupling member; a male coupling member adapted to be fitted in said female coupling member; a first air conduit formed in said female coupling member; a second air conduit formed in said male coupling member and adapted to communicate with said first air conduit; a first groove formed on said female coupling member at a position outside of said first air conduit; a second groove formed on said male coupling member at a position outside of said second air conduit; a third air conduit in said female coupling member communicating with said first groove; a fourth air conduit in said male coupling member communicating with said second groove, said first groove being defined by an outer wall formed on said female coupling member at a position outside of the opening of said first air conduit and a side wall thereof; said second groove being defined by an outer wall formed on said male coupling member at a position outside of the opening of said second air conduit and a side wall thereof; said outer wall of said second groove being in contact with said outer wall of said first groove; said sidewall of said second air conduit being in contact with said sidewall of said first air conduit; a first O-ring disposed between the outer wall of the first groove and the outer wall of the second groove; and a second O-ring disposed between the sidewall of the first air conduit and the sidewall of the second air conduit so that said first and second O-rings provide a complete isolating and sealing action for said first and second conduits and for said third and fourth conduits.
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) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |