US4609239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electropneumatic coupling element for providing a pressure-tight connection between a pressure supply line and a pressure supply connection
Assignee: Wabco Westinghouse Fahrzeugbremsen GmbH
•
Filing: 1985-02-28
•
Granted: 1986-09-02
•
Expires: 2005-02-28
Abstract
Abstract The invention relates to an electropneumatic coupling arrangement for providing a pressure-tight connection between a pressure supply line and a pressure chamber of a hydropneumatic component. The coupler includes a plastic plug-in body member having a pressure conduit and a plurality of electrical contacts for interconnecting an electrical sensing element located in the housing of the hydropneumatic component to apparatus located outside the hydropneumatic component.
Inventors
- 👤 Joachim Abel
- 👤 Juan Rovira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:36
CPC Classifications
F; F16; F16L; F16L25/00; F16L25/01
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
A coupling arrangement for providing a pressure-tight connection comprising, a hydropneumatic container having an access hole leading to a pressure chamber, an annular collar disposed in said access hole and secured to said container, an annular body portion fitted into and urged against a graduated ledge formed in said annular collar, a pressure supply line connectable to said pressure chamber by a right angle supply conduit formed in said annular body portion, and at least one electrical contact sealed and carried by said annular body portion for preventing leakage of pressure from said pressure chamber and for connecting an electrical cable to an electrical component located in said pressure chamber.
Claim 2
Dependent Claim
110 words
A coupling arrangement for providing a pressure-tight connection comprising, a hydropneumatic container having an access hole leading to a pressure chamber, an annular collar disposed in said access hole and secured to said container, an annular body portion fitted into and urged against a graduated ledge formed in said annular collar, a pressure supply line connectable to said pressure chamber by a right angle supply conduit formed in said annular body portion, and at least one electrical contact sealed and carried by said annular body portion for preventing leakage of pressure from said pressure chamber and for connecting an electrical cable to an electrical component located in said pressure chamber.
Claim 3
Dependent Claim
28 words
The coupling, according to claim 1, wherein said electrical component is located inside said pressure chamber which is pressurized by the pressure supplied by said pressure supply line.
Claim 4
Dependent Claim
22 words
The coupling, according to claim 1, wherein a snap ring permits detachable connection between said annular body portion and said annular collar.
Claim 5
Dependent Claim
38 words
The coupling, according to claim 1, wherein said electrical contact is located in a recessed hole formed in said annular body portion and a sealing element is located between the wall of the recessed hole and electrical contact.
Claim 6
Dependent Claim
16 words
The coupling, according to claim 1, wherein said electrical contact is protected by a plastic cover.
Claim 7
Dependent Claim
25 words
The coupling, according to claim 1, wherein a plurality of electrical contacts are connected to said electrical component which is located in said pressure chamber.
Claim 8
Dependent Claim
13 words
The coupling, according to claim 1, wherein said annular body portion is plastic.
Claim 9
Dependent Claim
21 words
The coupling, according to claim 1, wherein an O-ring is carried by said annular body portion to provide a pressure seal.
Claim 10
Dependent Claim
17 words
The coupling, according to claim 1, wherein an internally beaded annular projection extends into said pressure chamber.
References Cited (Backward Citations)
US3387606A
Cited
US3321733A
Cited
US3713459A
Cited
US3555487A
Cited
US3624585A
Cited
US3775251A
Cited
US3747048A
Cited
US3953099A
Cited
US4445744A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-01 | 1990-03-03 | 1990-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-01 | 1994-03-03 | 1994-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-01 | 1998-03-03 | 1998-09-02 | $7700.00 | Window Closed / Lapsed |