Brakes – Internal-resistance motion retarder – Controlled by an operator remote from retarder
Patent
1995-09-15
1997-08-19
Butler, Douglas C.
Brakes
Internal-resistance motion retarder
Controlled by an operator remote from retarder
280707, F16F 946, B60G 1126
Patent
active
056578407
ABSTRACT:
A method and apparatus for absorbing mechanical shock is disclosed. The apparatus comprises a pressure cylinder forming a working chamber having first and second portions operable to store damping fluid. The apparatus further comprises the first valve for controlling the flow of damping fluid between the first and second portions of the working chamber during compression of the shock absorber. In addition, the apparatus further comprises a pressure chamber in fluid communication with the first portion of the working chamber and the first valve. A solenoid is also provided for regulating the flow of damping fluid between the pressure chamber and the second portion of the working chamber. A second valve is further provided for controlling the flow of damping fluid between the first and second portions of the working chamber during rebound of the shock absorber.
REFERENCES:
patent: 2065832 (1936-12-01), Spyker
patent: 4923038 (1990-05-01), Lizell
patent: 5020825 (1991-06-01), Lizell
patent: 5025899 (1991-06-01), Lizell
patent: 5143186 (1992-09-01), Lizell
patent: 5217095 (1993-06-01), Lizell
patent: 5337863 (1994-08-01), Lizell
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