The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 2018
Filed:
Nov. 20, 2014
Pressurerite (Pty) Ltd., Cape Town, ZA;
Pierre Van Wyk Becker, Cape Town, ZA;
PressureRite (Pty) Ltd., Cape Town, ZA;
Abstract
A device () is disclosed for providing air to a tire which is mounted on a wheel rim which itself is free to rotate about a fixed, that is, non-rotatable axle. The device includes a pump () which in use rotates with the tire and which is configured to provide, when activated, air under pressure to the tire. There is a pump drive system for activating the pump. The pump drive system comprising a piston rod () which is connected to and rotates with the tire and a body () which rotates in unison with the rod () while the pump is inactive. An electric motor () rotates the body () with respect to the rod () to activate the pump and provide air to the tire. Rotation of the body () is superimposed on rotation of the pump with the tire. The device also includes a stator component () and coils () and magnets () for generating, by electrical induction, power for driving the motor using the relative rotation between the second part and the stator component ().