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:
May. 11, 1976
Filed:
Aug. 30, 1974
Applicant:
Inventors:
William W Rawls, Mountaintop, PA (US);
Alex Buchholz, Mountaintop, PA (US);
John P Walsh, Edwardsville, PA (US);
Assignee:
Cornell Iron Works, Inc., Wilkes-Barre, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05C / ;
U.S. Cl.
CPC ...
292229 ; 292201 ;
Abstract
A release mechanism for doors includes a pair of pivotally mounted cams one of which is displaceable to engage and retain a tensioned door sash element while the other cam locks and holds the first cam in said engagement until influenced by either the absence or presence of electrical power to a solenoid connected to the second one of said cams to cause displacement of the second cam and thus permit displacement of the first cam and release of the tensioned door sash element.