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:
Oct. 23, 2001
Filed:
Dec. 21, 1999
Applicant:
Inventors:
Thomas He, Unionville, CT (US);
Thomas Francis Malone, Jr., Avon, CT (US);
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 1/34 ;
U.S. Cl.
CPC ...
B66B 1/34 ;
Abstract
An elevator cab control system directly minimizes the lateral acceleration of an elevator cab floor, or platform, relative to the elevator car frame by implementing electromagnets between the cab floor and the car frame. The electromagnets are controlled in a closed-loop feedback manner by signals from accelerometers.