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:
Nov. 30, 1982
Filed:
May. 13, 1981
Applicant:
Inventors:
Kenneth D Schreyer, Clarence, NY (US);
Alton H Cooper, Kenmore, NY (US);
Assignee:
Columbus McKinnon Corporation, Tonawanda, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66D / ; B66D / ;
U.S. Cl.
CPC ...
254276 ; 254362 ; 254375 ;
Abstract
A device for precisely positioning a hoist suspended load which operates by temporarily releasing the hoist brake for a predetermined limited time period without actuating the hoist motor so that the load is lowered through a small incremental distance by the influence of its own weight. A control signal may be generated by a delay timer, a repeat cycle timer, a digital timing device or a device for detecting the degree of movement of the load carried by the hoist.