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. 06, 2011
Filed:
Sep. 09, 2009
Wai Chuen Gan, Kwai Chung, HK;
Gary Peter Widdowson, Kwai Chung, HK;
Shiqiang Yao, Kwai Chung, HK;
Siu Yan Ho, Kwai Chung, HK;
Hon Yu Peter NG, Kwai Chung, HK;
Wai Chuen Gan, Kwai Chung, HK;
Gary Peter Widdowson, Kwai Chung, HK;
Shiqiang Yao, Kwai Chung, HK;
Siu Yan Ho, Kwai Chung, HK;
Hon Yu Peter Ng, Kwai Chung, HK;
ASM Assembly Automation Ltd, Hong Kong, CN;
Abstract
A driving mechanism comprises a fixed housing, a movable housing on which an object to be driven is mounted and a driving motor which is operative to drive the movable housing to move linearly as well as to rotate relative to the fixed housing. An inductance-type encoder determines both linear and rotary displacement of the movable housing relative to the fixed housing, whereby to provide closed-loop control of the position of the object in both linear and rotary directions.