Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Patent
1975-08-08
1977-07-19
Halvosa, George E. A.
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
74107, 267 34, F16F 944
Patent
active
040363350
ABSTRACT:
A shock absorber, in an exemplary embodiment, especially suited for motorcycles and the like characterized as being fabricated of a minimum number of components assembled in a manner which permits rebuilding of worn components and wherein selected variable dampening is obtained through the provision of external adjustment device for varying the degree of dampening. The adjustability features allow for variable jounce and rebound factors to accommodate both normal and severe driving conditions and to permit compensation thereof, all without dismantling or demounting of the shock absorber from the vehicle with which it is associated. Adjustment in one instance comprises metering the hydraulic fluid and in the other instance varying the disposition of the main compression spring. Structure on the body of the shock absorber is provided to dissipate heat thereby increasing the quality of performance of the shock absorber during jounce and rebound conditions. Also disclosed is a piston having novel orifice and valve arrangement through which hydraulic fluid flows. In other embodiments a compensator device within the cylinder of the shock absorber prevents aeration and hence breakdown of the hydraulic fluid. Other unique features are also disclosed.
REFERENCES:
patent: 1135923 (1915-04-01), Reynolds
patent: 2586478 (1952-02-01), Paxhia
patent: 2745517 (1956-05-01), Zook
patent: 3275277 (1966-09-01), Illar et al.
patent: 3603575 (1971-09-01), Arlasky et al.
Cowan Arnold A.
Thompson John T.
Cowan Arnold A.
Halvosa George E. A.
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