US3881514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick disconnect coupling
Assignee: Deutz Allis Corp
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Filing: 1974-01-02
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Granted: 1975-05-06
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Expires: 1994-01-02
Abstract
Abstract A hydraulic coupling for connecting and disconnecting hydraulic lines. The coupling includes a lever to facilitate connection and disconnection and is adapted for mounting on a tractor. The lever selectively biases the coupling to an engaging or disengaging position while a section of the coupling is connected or disconnected from the other section of the coupling.
Inventors
- 👤 David A Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:22
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/28; F16L37/30; E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/3604; E02F3/3609; E02F3/3654; E02F9/00; E02F9/20; E02F9/22; E02F9/2264; E02F9/2275; F16L37/56; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87941; Y10T137/87949; Y10T137/87957; Y10T137/87973
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
196 words
A hydraulic coupling means for use in a hydraulic system comprising, a housing defining radial passages and a first and a second bore having axes in parallel relationship, a coupling including, a socket section including a cylindrical casing means with a closed end mounted in each of said bores, locking means carried on said casing means, a locking sleeve engaging said locking means, resilient means biasing said sleeve to a normal locking position, a plug section including a tubular member for reception in said socket section, valve means in said coupling permitting flow through said coupling when said coupling is connected and interrupting flow when said coupling is disconnected, a release lever pivotally mounted on said housing, means pivotally supporting said lever for selective and alternative pivotal movement for selective release of said couplings, a pair of arms on said lever with each arm engaging the closed end of a mating of said casing means for selectively biasing said casing means against said resilient means to a disengaging position relative to said locking sleeve by pivoting said lever to release one coupling in a fore direction and in an aft direction to release the other coupling.
Claim 2
Dependent Claim
196 words
A hydraulic coupling means for use in a hydraulic system comprising, a housing defining radial passages and a first and a second bore having axes in parallel relationship, a coupling including, a socket section including a cylindrical casing means with a closed end mounted in each of said bores, locking means carried on said casing means, a locking sleeve engaging said locking means, resilient means biasing said sleeve to a normal locking position, a plug section including a tubular member for reception in said socket section, valve means in said coupling permitting flow through said coupling when said coupling is connected and interrupting flow when said coupling is disconnected, a release lever pivotally mounted on said housing, means pivotally supporting said lever for selective and alternative pivotal movement for selective release of said couplings, a pair of arms on said lever with each arm engaging the closed end of a mating of said casing means for selectively biasing said casing means against said resilient means to a disengaging position relative to said locking sleeve by pivoting said lever to release one coupling in a fore direction and in an aft direction to release the other coupling.
Claim 3
Dependent Claim
59 words
A hydraulic coupling means for use in a hydraulic system as set forth in claim 1 wherein each of said couplings includes a cap on the closed end of the casing means of said coupling, means on each arm of said lever for engaging a cap for biasing said coupling in a forward direction when said lever is pivoted.
Claim 4
Dependent Claim
71 words
A hydraulic coupling means for use in a hydraulic system as set forth in claim 1 wherein said means pivotally supporting said lever includes said lever defining a first and a second slot, a first and a second pivot pin selectively positioned in said first and second slot, said lever pivoting on said first pin while said second pin moves in said second slot when one of said couplings is decoupled.
Claim 5
Dependent Claim
41 words
A hydraulic coupling means for use in a hydraulic system as set forth in claim 1 including a single pin pivotally connecting said lever to said housing to selectively pivot said lever in either of two directions for disconnecting said couplings.
Claim 6
Dependent Claim
57 words
A hydraulic coupling means for use in a hydraulic system as set forth in claim 1 wherein said resilient means defines a spring biasing said locking sleeve to engage said housing in one direction and said cylindrical casing means to engage said housing in the opposite direction to thereby bias said coupling to a normally connected position.
Claim 7
Dependent Claim
54 words
A hydraulic coupling means for use in a hydraulic system as set forth in claim 1 wherein said means pivotally supporting said lever includes means mounting said Lever on the side of said housing, said arms on said lever extending to the center of said housing to engage the ends at said casing means.
Claim 8
Dependent Claim
32 words
A hydraulic coupling means for use in a hydraulic system as set forth in claim 1 including means pivotally supporting said lever on an axes normal to the axes of said couplings.
Claim 9
Dependent Claim
59 words
A hydraulic coupling means for use in a hydraulic system as set forth in claim 1 wherein each of said couplings define an axis, said lever includes said arms with a first arm engaging a first coupling, a second arm engaging a second coupling whereby each of said arms engage a mating coupling on the axis of the coupling.
Claim 10
Dependent Claim
51 words
A hydraulic coupling means for use in a hydraulic system as set forth in claim 1 wherein said lever pivots about an axis centrally and normally to said axes of said bores in a fore and aft direction to selectively release a first or second coupling when said lever is pivoted.
Claim 11
Dependent Claim
60 words
A hydraulic coupling means for use in a hydraulic system as set forth in claim 1, said resilient means of each of said couplings biases said cylindrical casing means in a rearward direction for engagement with said arms of said lever, said resilient means thereby biasing said lever to a neutral position when said couplings are in the connected position.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |