Fluent material handling – with receiver or receiver coacting mea – Diverse fluid containing pressure filling systems involving... – Tire inflation
Reexamination Certificate
2011-07-12
2011-07-12
Huson, Gregory L (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
Diverse fluid containing pressure filling systems involving...
Tire inflation
C141S066000, C152S415000
Reexamination Certificate
active
07975731
ABSTRACT:
A method and an apparatus for filling tires with high purity nitrogen involves evacuating and then filling tires with nitrogen. An automated apparatus has a mode of operation which can be selected from among a four tire service, a spare tire service and a top off service, with or without vacuuming during evacuation. With the four tire service, four tires connected to the apparatus are evacuated and then filled to set front and rear tire pressures. With the spare tire service a single tire connected to the apparatus is evacuated then nitrogen filled to a set tire pressure. A five tire service for evacuating and filling two front and two rear tires and a spare tire is also disclosed. The top off service of a tire connected to the apparatus involves sensing the tire pressure and then evacuating or nitrogen filling to obtain a set tire pressure. Evacuation of a tire is automatically stopped when a set minimum pressure level or a set maximum time limit for evacuation is reached. The apparatus permits accurate filling of tires with high purity nitrogen in an efficient manner without requiring the operator to attend the apparatus during the process after initial setup.
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Crandall Thomas L.
Murphy Jeffrey B.
Shultz Eric I.
Antonelli, Terry Stout & Kraus, LLP.
Arnett Nicolas A
Huson Gregory L
RTI Technologies, Inc.
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