Resilient tires and wheels – Tires – resilient – Inflating devices
Patent
1996-07-05
1997-09-16
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Inflating devices
152418, 417211, 417233, B60C 2312
Patent
active
056676069
ABSTRACT:
An apparatus for pressurizing a pneumatic tire mounted on a vehicle wheel which includes a displacement type air pump having a spring loaded piston and cylinder combination for generating air under pressure. The air pump is axially attached to the vehicle wheel and an air pressure connection conduit introduces air under pressure generated from the pump into the pneumatic tire. A cam and cam follower arrangement is mounted in the housing for the pump for creating relative cam actuated movement therebetween which is utilized for driving the air pump. A pendulum is mounted for free axial rotation relative to the pump housing and the pendulum is connected to one of the cam or cam follower, and the other is secured to the pump housing for rotation therewith to provide this cam actuated driving movement. The axis of piston reciprocation in its cylinder is substantially aligned axially with the wheel axis of rotation. In addition, the cam follower is provided with a ramp tracking surface having points of maximum and minimum rise which dictate the limits of reciprocation of the piston and a step in this cam follower surface is provided which connects the maximum and minimum points of rise for providing a rapid compression stroke of the piston under spring bias.
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Ball Michael W.
Cycloid Company
Lorin Francis J.
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