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:
Apr. 11, 1989
Filed:
Apr. 13, 1987
Applicant:
Inventor:
Frank T Jackson, Norco, CA (US);
Assignee:
Hartwell Corporation, Placentia, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E05D / ; E05C / ;
U.S. Cl.
CPC ...
16327 ; 16346 ; 292263 ;
Abstract
A strut assembly having first and second sections pivotally linked together. An overlying sleeve is extendable to lock the sections together in the extended position and retractable to allow folding of the sections relative to one another. A member is arranged at the joint between sections and biased to extend outwardly into interference with the path of extension of the sleeve. A link linking the first and second sections cooperates with the member to retract same when the strut assembly is collapsed in order that the sleeve will automatically lock the sections together when the assembly is again extended.