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:
Aug. 12, 2008
Filed:
Mar. 16, 2004
Paul A. Stucky, Stockton, CA (US);
William A. Veronesi, Hartford, CT (US);
Paul A. Stucky, Stockton, CA (US);
William A. Veronesi, Hartford, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
An elevator load bearing member () monitoring device () has a controller () that applies a first signal () and a second signal () to at least one tension member () in the belt. The first signal () in one example has a plurality of () of a selected amplitude and duration. The second signal () includes a series of pulses () having a second, shorter duration and lower amplitude. The first signal is useful for providing information regarding a wear condition of the load bearing member. The controller utilizes a response to the second signal to determine a failure condition such as a broken load bearing member.