B - Operations – Transporting – 60 – B
Patent
B - Operations, Transporting
60
B
184/21
B60B 27/00 (2006.01) F16N 11/04 (2006.01)
Patent
CA 1046955
Abstract The hub cap device includes a cylindrical housing mount- able 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 con- trol 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.
238772
Conradi Eugene P.
Depuydt Frank A.
LandOfFree
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