Shock absorber having fluid amplified piston head with relief va

Details Shock absorber having fluid amplified piston head with relief va Shock absorber having fluid amplified piston head with relief va

1984-01-25

1989-09-19

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

Resistance alters relative to direction of thrust member

188268, 188312, 18832222, 267 6413, 267127, F16F 920, F16F 930

Patent

active

048672866

ABSTRACT:
A shock absorber having a casing containing compressible fluid and a piston head with structure for providing fluid amplification during normal piston head movement, the piston head having a central bore therein for slidably mounting the piston head for axial movement on the piston rod and being biased against a holding member by Bellville washers, a valve on the holding member obstructing conduits between the piston rod and the piston head when the piston head is biased against the holding member, the conduits being uncovered by the valve to permit flow therethrough from one side of the piston head to the other when the pressure in the shock absorber in the area of the holding member exceeds a predetermined value, the conduits between the piston head and piston rod being of a shape to provide a second stage of fluid amplified flow.

REFERENCES:
patent: 821359 (1906-05-01), Hoeberlein
patent: 2252772 (1941-08-01), Katcher
patent: 2310570 (1943-02-01), Briggs
patent: 2570854 (1951-10-01), Pierce
patent: 2606760 (1952-08-01), Schlegel, Jr.
patent: 2953810 (1960-09-01), Hall
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patent: 3516520 (1970-06-01), Agren et al.
patent: 3722640 (1973-03-01), Taylor
patent: 3882977 (1975-05-01), Watanabe
patent: 3981380 (1976-09-01), Andre
patent: 4064977 (1977-12-01), Taylor
patent: 4433759 (1984-02-01), Ichinose

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