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:
Sep. 20, 1988
Filed:
Feb. 18, 1986
Douglas E Pyles, Bryan, OH (US);
David N Carey, Bryan, OH (US);
The Aro Corporation, Bryan, OH (US);
Abstract
An improved torque control mechanism for a rotary vane, air motor tool includes acceleration and speed responsive slidable elements positioned in grooves that lie in a plane transverse to the spin axis of the motor and which form an angle with the radii extending from the spin axis. The elements cooperate with a cam plate which operates a fluid supply valve to close off air supply to the tool whenever torque of the tool causes the speed of the motor to decrease below a threshold level. A bypass valve and passage is manually operable to initiate operation of the air motor. An auxiliary low volume, low pressure valve and passage permits an operator to provide minor adjustments of the orientation of the output shaft of the tool. For reverse operation, the speed and acceleration control is eliminated by operation of a reverse operation control mechanism.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile