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. 20, 1983
Filed:
Apr. 24, 1981
Applicant:
Inventors:
Leroy L Wittman, Marion, IA (US);
Lyle B Jensen, Cedar Rapids, IA (US);
Assignee:
FMC Corporation, Chicago, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66C / ; B66C / ;
U.S. Cl.
CPC ...
212186 ; 212182 ; 212183 ; 212262 ;
Abstract
A removable live mast and hoist unit is disclosed for use with a crane of the type having a pivotal live mast releasably connected to the boom of a crane for raising and lowering the boom. The unit includes the live mast and a boom hoist frame that are rigidly secured together with the boom hoist, reeving, mast bridle and bail all partially enclosed within portions of the mast and a cavity in the frame to protect the reeving and to permit easy removal of the unit without unwinding the reeving.