Pneumatic tire and improved inflation and deflation valve device

Details Pneumatic tire and improved inflation and deflation valve device Pneumatic tire and improved inflation and deflation valve device

1991-08-07

1993-01-19

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

1523421, 1523311, 137223, B60C 524

Patent

active

051804557

ABSTRACT:
A pneumatic tire includes an inflatable tire tube having a plurality of inflatable cell units arranged in an annular formation. A check valve is provided in a cell inlet opening of each cell unit. A control chamber is disposed adjacent to each cell unit and includes a diaphragm member provided therein so as to partition the control chamber into first and second fluid compartments. The first and second fluid compartments of the control chambers are respectively connected to and communicated with those of adjacent control chambers. Each check valve has a first portion extending into one of the cell units and a second portion extending into the first fluid compartment of one of the control chambers. A first tire valve is provided to charge air into and to release air from the second fluid compartment of each of the control chambers so as to move the respective diaphragm member to correspondingly open and close the check valves. A second tire valve is provided to charge air into and to release air from the first fluid compartment of each of the control chambers so as to inflate or deflate the cell units when the respective check valves are open.

REFERENCES:
patent: 1260304 (1918-03-01), Betham
patent: 1442436 (1923-01-01), Margraf
patent: 1443258 (1923-01-01), Granat
patent: 1886094 (1932-11-01), Guenard
patent: 2155206 (1939-04-01), Steindel
patent: 3283799 (1966-11-01), Barbera
patent: 3438419 (1969-04-01), Barbera

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