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:
Mar. 08, 2011
Filed:
Nov. 14, 2006
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 ...
E05D 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A revolving security door includes a drum defining a secure zone between door openings controlled by a revolving door disposed within the drum and wherein light curtain sensors and active infrared sensors may detect an intruder moving from a non-secure side of the doorway to the secure side and detect objects left behind in a secure zone. Methods of operation prevent persons or objects from passing from the non-secure side to the secure side of the doorway.