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:
Jul. 22, 2025
Filed:
Apr. 06, 2023
Columbus Mckinnon Corporation, Getzville, NY (US);
Yunji Gu, Charlotte, NC (US);
Columbus McKinnon Corporation, Getzville, NY (US);
Abstract
A hoisting rope sensor assembly for use with a rope hoist. A rope guide is configured to mount around a rotating drum having a spiral rope groove defined therein. The spiral rope groove on the rotating drum is configured to receive the hoisting rope as it winds and unwinds from the rotating drum. The rope guide is configured to move laterally relative to the rotating drum to keep the hoisting rope in the spiral rope groove when winding the hoisting rope onto the rope groove or unwinding it from the rope groove. An idler sheave has a groove defined therein for guiding the hoisting rope. A magnetic flux leakage sensor surrounds the hoisting rope. The magnetic flux leakage sensor is disposed between the idler sheave and the rope guide. The magnetic flux leakage sensor and idler sheave move with the rope guide relative to the rotating drum.