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:
Jul. 03, 2001
Filed:
Jun. 04, 1999
Applicant:
Inventors:
Richard L Gardner, Jr, Greeley, CO (US);
Robert L Mueller, Windsor, CO (US);
Richard A Irwin, Fort Collins, CO (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 5/26 ; F16H 5/518 ;
U.S. Cl.
CPC ...
G01D 5/26 ; F16H 5/518 ;
Abstract
Methods and apparatus for quantifying the amount of backlash in drive trains. Using two optical transducers techniques are disclosed that lend themselves to self diagnosis of backlash in drive train systems. The techniques are useful in autochanger drive systems, but are also applicable to all systems involving the driven motion of devices.