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. 02, 1991
Filed:
Sep. 22, 1989
Applicant:
Inventor:
Matti J Kahkipuro, Hyvinkaa, FI;
Assignee:
Kone Elevator GmbH, Baar, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187115 ;
Abstract
A procedure for damping the vibrations of an elevator car or part supported by elastic suspension elements comprises the steps of measuring the acceleration of the elevator car or part by means of at least one acceleration transducer, using the output signal from that transducer to control at least one vibration damper, which, in order to damp a vibration, imparts to the elevator car or part a force acting in a direction opposite to the direction of the vibration and substantially simultaneous with it. An apparatus to carry out the procedure is also disclosed.