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. 30, 1982
Filed:
Nov. 08, 1979
Applicant:
Inventors:
Calvin E Kelly, Murrysville, PA (US);
Thomas E Nicely, Delmont Borough, PA (US);
Assignee:
United States Steel Corporation, Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E05C / ;
U.S. Cl.
CPC ...
292260 ; 292-1 ;
Abstract
An adjustable spring latch for doors of coke ovens or the like. The latch includes springs which urge the door into tight engagement with the jamb. The force exerted by the springs can be adjusted by turning a spindle. The latch also includes sight pins which afford a visual indication of the force exerted by the springs.