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:
Dec. 05, 2006
Filed:
Dec. 31, 2003
Applicant:
William S. Liles, Jr., Corpus Christi, TX (US);
Inventor:
William S. Liles, Jr., Corpus Christi, TX (US);
Assignee:
Overhead Door Corporation, Lewisville, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05F 11/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A motorized universal swing door operator includes a motor driving a gear reduction drive mechanism having an output shaft adapted to be connected to a swing door operating arm. The output shaft supports a sprocket around which is trained a chain having opposite ends connected to a link supported on a shaft which is connected to a return spring. The return spring stores and returns energy regardless of the direction of rotation of the output shaft so as to provide the universal operating capability of the operator.