Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1990-02-12
1991-01-08
Fox, John C.
Fluid handling
Systems
Flow path with serial valves and/or closures
251122, F16K 104
Patent
active
049827626
ABSTRACT:
Lift structure particularly useful with front mounted implements for providing both lift and weight transfer functions from a single valve. The valve acts as an adjustable bleeder for the lift cylinder and includes a control knob which is movable both axially and rotationally to respectively provide lift and adjustable flotation. The valve is normally biased to an adjustable orifice position for operating the implement in a lowered, flotation position. To momentarily lift the implement, the operator moves the control knob against the bias to direct flow to the lift cylinder thereby raising the implement off the ground. When the operator releases the valve, it automatically returns to the preset orifice position to provide the desired flotation.
REFERENCES:
patent: 2821996 (1958-02-01), Stevenson
patent: 3511470 (1970-05-01), Beckett et al.
patent: 4004610 (1977-01-01), Theriot
patent: 4064908 (1977-12-01), Loe
patent: 4248265 (1981-02-01), Freeman, Jr.
patent: 4292884 (1981-10-01), Schmacher et al.
patent: 4313466 (1982-02-01), Adams
patent: 4329911 (1982-05-01), Schwerin
patent: 4457341 (1984-07-01), Aspinwall
patent: 4463658 (1984-08-01), Heiser et al.
patent: 4622803 (1986-11-01), Lech
patent: 4733523 (1988-03-01), Dedeyne et al.
Behrens Robert N.
Dobberpuhl Dale R.
Lee Michael C.
Montogomery Dix S.
Wykhuis Lloyd A.
Deere & Company
Fox John C.
LandOfFree
Hydraulic lift with weight transfer does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic lift with weight transfer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic lift with weight transfer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-928669