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:
Dec. 29, 1981
Filed:
Mar. 18, 1980
Samuel L Benson, Vermillion, IN (US);
Louis T Jensen, Vigo, IN (US);
J. I. Case Company, Racine, WI (US);
Abstract
A lock holds together two masts of a multi-stage forklift truck. A spring-loaded bolt carried by the inner mast is forced into an opening in the outer mast when the carriage is lowered to a position lower than the lowest edge of the inner mast. With the lock engaged the carriage may be raised from its lowest position without forcing the inner mast to rise from its lowest position. Once the carriage has been raised to clear the lower edge of the adjacent mast, the two masts are then unlatched. The latching mechanism allows the amount of travel of a carriage relative to the adjacent mast to be extended without movement of the adjacent mast.