Hub cap having an air valve for bearing cavity pressurization

Details Hub cap having an air valve for bearing cavity pressurization Hub cap having an air valve for bearing cavity pressurization

2006-05-08

2008-10-21

Bellinger, Jason R (Department: 3617)

Land vehicles: wheels and axles

Wheel

Hub

C384S190600

Reexamination Certificate

active

07438367

ABSTRACT:
A hub cap is provided for boat trailer wheel hubs that includes an air valve. The valve may take several different forms. A hub cap employs a security air valve that is inserted through an aperture formed within the hub cap body. The valved hub cap allows the hub cavity to be temporarily pressurized when a boat trailer is partially submerged during the launch and recovery of a boat. Additional features may be incorporated in the hub cap, including a pressure release valve, which prevents damage to the hub seal, an O-ring groove in the hub cap body, which seals the cap to the hub and may also secure the hub cap to the wheel hub body. A separate spring retainer clip is also provided, which secures the hub cap to the hub body.

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