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:
Jun. 09, 1987
Filed:
Apr. 07, 1986
Applicant:
Inventors:
David G Curry, Mesa, AZ (US);
John W Taylor, Fairborn, OH (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E05C / ; E05C / ; E05D / ;
U.S. Cl.
CPC ...
49465 ; 16229 ; 16262 ; 49390 ; 49395 ;
Abstract
A quickly demountable security-conscious door having a four-pin engagement with the adjacent door frame and having a plurality of rack and pinion mechanisms for movement of the hinge pin and lock bolt members into engagement positions with respective receptacles located in the door frame member. The door includes weather stripping provisions, operating knob rotational limits, and operating shaft spring assistance and uses Teflon.RTM. or other low-friction materials in appropriate frictional engagement positions.