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:
Nov. 10, 2015
Filed:
May. 14, 2009
Matthew Brian Dubin, Tucson, AZ (US);
Robert Joseph Pagano, Tucson, AZ (US);
James Cirillo, Cleveland Hts., OH (US);
Matthew Brian Dubin, Tucson, AZ (US);
Robert Joseph Pagano, Tucson, AZ (US);
James Cirillo, Cleveland Hts., OH (US);
Parker Hannifin Corporation, Cleveland, OH (US);
Abstract
A probe for determining an absolute position of a rod relative to a cylinder with the rod having an associated pattern for indicating position includes a light source for emitting light. The probe further includes a light pipe for directing light emitted by the light source onto the pattern of the rod. A detector of the probe detects light and provides a signal indicative of the detected light. A lens produces an image of a portion of the pattern illuminated by the light on the detector and a controller is responsive to the signal from the detector for determining an absolute position of the rod relative to the cylinder.