Automatically operated gate valve for recreational vehicles

Details Automatically operated gate valve for recreational vehicles Automatically operated gate valve for recreational vehicles

1990-07-30

1992-01-07

Michalsky, Gerald A.

Fluid handling

With casing, support, protector or static constructional...

Vehicle

4323, 137554, 251 3005, 251 58, F16K 302, F16K 31163

Patent

active

050781804

ABSTRACT:
This invention is a hydraulic device for operating a gate valve in the drainage line of a recreational vehicle. The device consists of a support plate mounted to the gate valve or drainage line. A hydraulic cylinder with a hydraulic rod is pivotally mounted to the support plate. The hydraulic rod is attached to the gate control rod by means of a pivot arm that is also pivotally attached to the support plate. The device is operating by means of a hydraulic pump, a motor and control means for operating the motor, typically an electrical switch.

REFERENCES:
patent: 3378025 (1968-04-01), Hilde, Jr.
patent: 3811462 (1974-05-01), Feliz
patent: 3941349 (1976-03-01), Pierson
patent: 3949963 (1976-04-01), Aoki
patent: 3952995 (1976-04-01), Nagumo et al.
patent: 3970280 (1976-07-01), Kunz
patent: 4214324 (1980-07-01), Kemper et al.
patent: 4483509 (1984-11-01), Lewcock
patent: 4693447 (1987-09-01), Perez
patent: 4779650 (1988-10-01), Sargent et al.
patent: 4875504 (1989-10-01), Nicholson
patent: 4905325 (1990-03-01), Colditz

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