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.

Date of Patent:
Jan. 13, 2004

Filed:

Jul. 31, 2002
Applicant:
Inventors:

Brent Williams, Fort Worth, TX (US);

Richard Anthony, Fort Worth, TX (US);

Aravind Seshadri, Fort Worth, TX (US);

Nicholas A. Teufel, Fort Worth, TX (US);

James H. Kim, Fort Worth, TX (US);

Kisoo Jung, Fort Worth, TX (US);

Kartik Moorthy, Irving, TX (US);

Assignee:

Williams-Pyro, Inc., Fort Worth, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05C 9/00 ;
U.S. Cl.
CPC ...
E05C 9/00 ;
Abstract

The apparatus is used for closing and securing a door in its frame. A movable wedge is supported in a slot in the frame. A closing mechanism is employed for closing the door and a second mechanism is employed for moving the wedge into a slot formed in the edge of the door when the door is closed. A shape memory wire is used in conjunction with the closing mechanism for allowing the closing mechanism to close the door. A second shape memory wire is used in conjunction with the second mechanism for allowing the second mechanism to move the wedge from the frame slot into the door slot when the door is closed for securing the door to the frame.


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