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. 05, 1997
Filed:
Oct. 19, 1995
Applicant:
Inventor:
Kunio Kato, Inazawa, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
187350 ; 188188 ;
Abstract
An elevator governor has two balancing springs, i.e., a first balancing spring for continually urging flyweights in a direction against a centrifugal force and a second balancing spring for urging flyweights in a direction against the centrifugal force only when speed of a cage exceeds a previously set first overspeed. Thereby, two overspeeds may be set independently from each other whereby the setting operation may be facilitated and accuracy in setting the overspeeds may be improved.