US4384511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic cylinder
Assignee: MEFFERD FLOYD R AS JOINT TENANTS WITH FULL RIGHT OF SURVIVORSHIP
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Filing: 1980-10-17
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Granted: 1983-05-24
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Expires: 2000-10-17
Abstract
Abstract An improved hydraulic cylinder has built-in variable adjustments for allowing selectively adjustable orientation of the barrel and hydraulic port thereon with respect to the bottom clevis and the hydraulic port thereon. The two hydraulic ports or connectors can be rotated to various orientations with respect to one another, merely by unthreading and loosening a locking collar, rotating the bottom clevis to the desired position, and rethreading and tightening the locking collar.
Inventors
- 👤 Roy J. Mefferd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:52
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/1423; F15B15/1438; F15B15/1433
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
356 words
A hydraulic cylinder for an implement comprising: a cylinder barrel having a longitudinal bore extending therethrough and at least one hydraulic coupling on the outer cylindrical surface thereof, said coupling being in fluid communication with the interior of said longitudinal bore; first closure means on one end of said barrel for closing off said one end of said bore, said closure means having a rod receiving opening therein, said closure means comprising a first collar threadable received on said one end of said barrel; a piston mounted within said bore for reciprocating movement therein; a piston rod connected to said piston and slidably extending through said rod receiving opening of said first closure means; a rod clevis mounted on one end of said rod outside said longitudinal bore; second closure means mounted on the opposite end of said barrel for closing said opposite end of said bore; said second closure means comprising a plug member rotatably mounted within said opposite end of said bore with at least a portion of said plug extending outside said bore, said portion outside said bore including clevis means for attachment to said implement; said plug member having an annular flange thereon forming a first annular shoulder presented axially toward and abutting against said opposite end of said barrel and a second annular shoulder presented axially away from said opposite end of said barrel; locking means comprising a second collar threadably received on said opposite end of said barrel, said second collar having a portion thereof engaging said second annular shoulder of said plug member and holding said first annular shoulder of said flange against said opposite end of said barrel; said plug member having at least a first radial plug opening and a second radial plug opening providing communication from the interior of said bore to the exterior of said plug member, each of said openings having its own removeable plug for selective connection to a hydraulic line; said second collar being selectively rotatable to loosen its hold on said plug member so as to permit rotational adjustment of said openings and said hydraulic coupling with respect to one another.
Claim 2
Dependent Claim
356 words
A hydraulic cylinder for an implement comprising: a cylinder barrel having a longitudinal bore extending therethrough and at least one hydraulic coupling on the outer cylindrical surface thereof, said coupling being in fluid communication with the interior of said longitudinal bore; first closure means on one end of said barrel for closing off said one end of said bore, said closure means having a rod receiving opening therein, said closure means comprising a first collar threadable received on said one end of said barrel; a piston mounted within said bore for reciprocating movement therein; a piston rod connected to said piston and slidably extending through said rod receiving opening of said first closure means; a rod clevis mounted on one end of said rod outside said longitudinal bore; second closure means mounted on the opposite end of said barrel for closing said opposite end of said bore; said second closure means comprising a plug member rotatably mounted within said opposite end of said bore with at least a portion of said plug extending outside said bore, said portion outside said bore including clevis means for attachment to said implement; said plug member having an annular flange thereon forming a first annular shoulder presented axially toward and abutting against said opposite end of said barrel and a second annular shoulder presented axially away from said opposite end of said barrel; locking means comprising a second collar threadably received on said opposite end of said barrel, said second collar having a portion thereof engaging said second annular shoulder of said plug member and holding said first annular shoulder of said flange against said opposite end of said barrel; said plug member having at least a first radial plug opening and a second radial plug opening providing communication from the interior of said bore to the exterior of said plug member, each of said openings having its own removeable plug for selective connection to a hydraulic line; said second collar being selectively rotatable to loosen its hold on said plug member so as to permit rotational adjustment of said openings and said hydraulic coupling with respect to one another.
Claim 3
Dependent Claim
24 words
The device according to claim 1 wherein said first and second radial plug openings of said plug are perpendicular with respect to one another.
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) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-23 | 1990-11-22 | 1991-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-23 | 1994-11-22 | 1995-05-24 | $7700.00 | Window Closed / Lapsed |