Fluid handling – Inflatable article – With pressure-responsive pressure-control means
Reexamination Certificate
2006-09-12
2006-09-12
Rivell, John (Department: 3753)
Fluid handling
Inflatable article
With pressure-responsive pressure-control means
C137S227000, C137S505250, C152S427000
Reexamination Certificate
active
07104274
ABSTRACT:
There is an apparatus for regulating air flow into a rim mounted pneumatic vehicle tire. The apparatus has an elongated valve housing1′ with an inlet end1A′, an outlet end2′ and a central portion between the outlet and inlet. The outlet end includes a rim insertion portion3′ configured to fit into an aperture in the tire rim. There is a piston8′ disposed within the housing. The piston includes a valve member19′. A coil spring22′ acts between the housing and piston so that in use of the apparatus the piston is biased to a open position for passage of air into the tire and is movable against the spring bias under air pressure build-up in the tire to a closed position at which the valve member seals against a valve seat. The piston and spring are located in the central portion of the housing clear of the rim insertion portion. The rim insertion portion is of a reduced size not obstructive to the mounting of the tire.
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Jacobson and Johnson
Rivell John
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