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:
Aug. 15, 1995
Filed:
Feb. 01, 1993
Robert L Leon, Maple Glen, PA (US);
Anthony L Moffa, Phoenixville, PA (US);
Liberty Technologies, Inc., Conshohocken, PA (US);
Abstract
A system for determining shaft load parameters including shaft windup angle per unit length, torque output and power output in a generally cylindrical rotating shaft having an outer surface and a longitudinal axis extending through the center thereof includes a plurality of probes spaced apart from each other. Each probe has a first end and a second end, the first end of each probe being in facing relationship with the rotating shaft. A rigid frame commonly supports all of the probes at a predetermined distance from the outer surface of the shaft. The frame is supported in such a manner that the frame may vibrate or displace relative to the rotating shaft essentially as a rigid body. Targets on the outer surface of the rotating shaft are located for triggering a probe output response each time during shaft rotation that a target passes the first end of one of the probes. A calculator calculates the torque induced shaft windup angle of the rotating shaft based in part on the probe trigger times and the spacing of the probes.