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:
Mar. 27, 1979
Filed:
Aug. 18, 1977
Applicant:
Inventors:
Edmund R Koval, Tonawanda, NY (US);
Kenneth D Schreyer, Clarence, NY (US);
Assignee:
Columbus McKinnon Corporation, Tonawanda, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66D / ;
U.S. Cl.
CPC ...
2541 / ; 188171 ; 310 93 ; 310172 ; 336 73 ; 336172 ;
Abstract
A hoist brake unit having a shading coil mechanically locked into the core of the brake unit's electromagnet. The mechanical lock is achieved by passing the coil through a cavity in the core having intervening core material between the cavity and an external surface of the core.