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. 31, 1983
Filed:
Aug. 14, 1980
Applicant:
Inventors:
Stanley R Spain, Waynesboro, PA (US);
William G Reichard, Columbia, SC (US);
Assignee:
Kidde, Inc., Clifton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66C / ;
U.S. Cl.
CPC ...
212269 ; 52118 ; 308 / ;
Abstract
To resist side deflection and buckling of the top and side plates in larger size multi-section telescopic crane booms, top plate lateral supports for the movable boom sections in the fully extended and fully retracted critical zones are provided to supplement the action of bottom lateral wear pads. The top plate lateral supports include adjustable spring bars on the sides and forward ends of the boom sections and coacting cam pads on the top plates of the boom sections at their forward ends and in the socketing zones when the boom sections are fully extended.