Rotary union assembly for use in air pressure inflation...

Details Rotary union assembly for use in air pressure inflation... Rotary union assembly for use in air pressure inflation...

2007-06-11

2008-09-02

Stormer, Russell D (Department: 3617)

Resilient tires and wheels

Tires, resilient

Inflating devices

C152S415000

Reexamination Certificate

active

07418989

ABSTRACT:
Preferably, a tire inflation system includes a hub cap secured to a wheel attached to an axle of a vehicle, the axle providing a source of pressurized air. The tire inflation system preferably includes a rotary union assembly with a rotating portion and a non-rotating portion, the rotating portion attachable to the exterior of the hub cap for rotation with the hub cap. The non-rotating portion preferably includes a non-rotating shaft defining an air passage therethrough in fluid communication with the source of pressurized air for transferring pressurized air from the source to the tire. An end of the non-rotating shaft preferably provides a first bearing surface and a housing is rotatably mounted thereon for rotation with the hub cap. The rotating portion preferably includes a rotary member rotating with the housing, the rotary member defining a second bearing surface disposed in abutment with the first bearing surface.

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