Hydraulic shock absorber having reserve liquid supply chamber an

Details Hydraulic shock absorber having reserve liquid supply chamber an Hydraulic shock absorber having reserve liquid supply chamber an

1986-05-12

1987-06-16

Reger, Duane A.

Brakes

With condition indicator

Electrical

116272, 137557, 18832211, F16D 6600, G01L 716

Patent

active

046730630

ABSTRACT:
A shock absorber has a reserve fluid supply chamber near one end and a cylindrical housing portion adjoining the reserve supply chamber containing a spring for biasing a piston to pressurize liquid in the reserve supply chamber. The piston moves a shaft axially carrying an indicating disc, the periphery of which can be viewed through viewing openings in the cylindrical housing when the supply chamber liquid is exhausted. Snap action of the indicating disc is accomplished by a detent ring in a groove about the periphery of the disc and a complimentary groove about the inner periphery of a transparent sleeve that also seals the viewing opening against dust and the like.

REFERENCES:
patent: 3833094 (1974-09-01), Grossman
patent: 4141263 (1979-02-01), Ellington
patent: 4499846 (1985-02-01), Bergeron et al.

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