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:
Nov. 07, 1995
Filed:
Aug. 31, 1993
Applicant:
Inventors:
Joseph E Arnold, Linsdtrom, MN (US);
David A Wahlstedt, Minneapolis, MN (US);
Assignee:
Reell Precision Manufacturing Corporation, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
E05F / ; E05D / ; E05C / ;
U.S. Cl.
CPC ...
192 / ; 16337 ; 16342 ; 192-7 ; 464 40 ;
Abstract
A spring hinge and method of making same are disclosed. The spring hinge has a housing enclosing the spring and its associated shaft. The housing includes projections adjacent the ends of the spring such that upon rotation of the spring in either direction, an end of the spring is engaged by the housing and the spring is caused to expand into the 'wrap open' condition.