Trailer hub cap device

Details Trailer hub cap device Trailer hub cap device

1975-02-10

1976-05-11

Reeves, Robert B.

Land vehicles: wheels and axles

Wheel

Hub

301125, 184 45R, 308 93, B60B 2700

Patent

active

039558525

ABSTRACT:
The hub cap device includes a cylindrical housing mountable on the trailer wheel hub and having a spring loaded piston that is movable between defined inner and outer positions. As the hub is filled with grease under pressure through a grease fitting on the piston, the piston is moved to its outer position wherein excess grease is bled to the atmosphere. A manually actuated control means on the hub cap device is adjustable to provide for the spring load being applied to urge the piston to the inner position therefor, when the trailer is to be used at a launching site, and for the spring load being removed from the piston when the trailer is to be used for road travel.

REFERENCES:
patent: 1454922 (1923-05-01), Fesler
patent: 1479986 (1924-01-01), Fesler
patent: 3077948 (1963-02-01), Law
patent: 3785706 (1974-01-01), Vangalis

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