Expansible chamber devices – With fluid purifying means – Means separates gas from liquid
Patent
1994-03-28
1995-02-21
Denion, Thomas E.
Expansible chamber devices
With fluid purifying means
Means separates gas from liquid
92 51, 92 52, 91167R, F15B 2104
Patent
active
053905865
ABSTRACT:
A self-bleeding multi-stage or single-stage hydraulic cylinder system is disclosed which automatically bleeds entrapped air from within the cylinder each time the cylinder is cycled. The self-bleeding structure preferably includes a fixed elongated tube mounted to the base plate of the cylinder, and an axially moveable elongated tube telescopically mounted on the fixed tube. A biasing compression spring forces the moveable tube upward to a predetermined extent when the cylinder is extended. Upon contraction of the cylinder, air trapped therein is purged or bled from the cylinder through the top end of the axially moveable elongated tube into a fluid reservoir. In the final stage of contraction of the cylinder, hydraulic fluid is forced through the fixed and moveable elongated tubes thereby forcing the remaining air trapped therein out of the cylinder and into the hydraulic fluid reservoir.
REFERENCES:
patent: 2453350 (1948-11-01), Stegeman
patent: 2505213 (1950-04-01), Schnell
patent: 2588285 (1952-03-01), Pelouch
patent: 2783744 (1957-03-01), Tennis
patent: 2811950 (1957-11-01), Entz
patent: 2830859 (1958-04-01), Parsons
patent: 3136221 (1964-06-01), Walker
patent: 3147829 (1964-09-01), Johnson et al.
patent: 33168853 (1965-02-01), Prince
patent: 3203317 (1965-08-01), Taylor
patent: 3398645 (1968-08-01), Nansel
patent: 3415169 (1968-12-01), Naddell
patent: 3496838 (1970-02-01), Barrett et al.
patent: 3610100 (1971-10-01), Hoffman
patent: 3625297 (1971-12-01), Worman
patent: 3832937 (1974-09-01), Moore et al.
patent: 3956970 (1976-05-01), Kupiek et al.
patent: 4691617 (1987-09-01), Purkott
patent: 4726281 (1988-02-01), De Filippi
patent: 5191828 (1993-03-01), McCreery
patent: 5247872 (1993-09-01), Hoshi
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