Check valve for tire inflation system

Details Check valve for tire inflation system Check valve for tire inflation system

2005-04-19

2005-04-19

Stormer, Russell D. (Department: 3617)

Resilient tires and wheels

Tires, resilient

Inflating devices

C152S416000, C137S223000

Reexamination Certificate

active

06880598

ABSTRACT:
A wheel valve assembly for adjusting the air pressure within a pneumatic tire is provided that includes a body that extends from a first end in communication with a pressure source to a second end in communication with the tire. A low pressure differential operable valve member is received within the body. The valve member is moveable between open and closed positions for respectively allowing and preventing air communication between the internal segment and the external segment of the body. The check valve of the present invention is virtually unaffected by the centrifugal force of a rotating tire to substantially prevent back flow of the tire air when the tire is rotating at a relatively high speed.

REFERENCES:
patent: 2255932 (1941-09-01), Kraft et al.
patent: 4077456 (1978-03-01), Smith
patent: 4246930 (1981-01-01), Bishop et al.
patent: 4765358 (1988-08-01), Cady
patent: 4991618 (1991-02-01), Gould
patent: 5094263 (1992-03-01), Hurrell et al.
patent: 5261471 (1993-11-01), Freigang et al.

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