Fluid handling – Systems – Programmer or timer
Patent
1976-05-10
1978-03-28
Cohan, Alan
Fluid handling
Systems
Programmer or timer
13762418, 251 45, 137869, 137344, A01G 2509
Patent
active
040809919
ABSTRACT:
A control valve for use in conjunction with the control system of water powered field irrigation equipment has a valve housing provided with an inlet opening, an outlet opening, and a flow passage connecting the inlet and outlet openings. The flow path is selectively blocked and unblocked by a valve element actuated by a pilot valve controlled remotely by an operator of the equipment in order to determine the direction of rotation of a drive motor which propels a portion of the equipment about a pivot axis as a function of the position of other portions of the equipment. A fluid actuated motor provided with an eccentrically mounted output cam permits control of the time the end unit of the equipment, which unit controls the operation of other units disposed between the end unit and the pivot axis, is on and off in order to obtain a continuous speed control of the equipment.
REFERENCES:
patent: 269886 (1883-01-01), Semple
patent: 1988026 (1935-01-01), Unger
patent: 2283973 (1942-05-01), Criss
patent: 2772067 (1956-11-01), Wilson
patent: 3345915 (1967-10-01), Dotto
patent: 3805822 (1974-04-01), Joannon
patent: 3893475 (1975-07-01), Hudson
Cohan Alan
Heinzman Engineering, Inc. (Entire)
Jacobson Harvey B.
O#Brien Clarence A.
LandOfFree
Control valve and speed adjustment for water drive irrigation sy does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control valve and speed adjustment for water drive irrigation sy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control valve and speed adjustment for water drive irrigation sy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-638514