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:
Feb. 28, 2012
Filed:
Sep. 15, 2008
Rory S. Smith, El Cajon, CA (US);
Stefan Kaczmarczyk, Northampton, GB;
Jim Nickerson, Spring Valley, CA (US);
Patrick M. Bass, Hernando, MS (US);
Rory S. Smith, El Cajon, CA (US);
Stefan Kaczmarczyk, Northampton, GB;
Jim Nickerson, Spring Valley, CA (US);
Patrick M. Bass, Hernando, MS (US);
Thyssenkrupp Elevator Capital Corporation, Troy, MI (US);
Abstract
A system and method for minimizing compensation rope sway by altering the natural frequency of compensation ropes using servo actuators. The rope sway may be minimized by moving the compensation sheave to adjust the tension of the compensation rope or adjusting the position of the termination of a compensation rope to account for changes in the position of a structure. Servo actuators may also be used to re-level the elevator car to account for rope stretch.