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:
Mar. 17, 1987
Filed:
Mar. 11, 1985
Applicant:
Inventors:
Assignees:
Hitachi Elevator Engineering & Service Co., Ltd., Tokyo, JP;
Hitachi Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
73658 ; 187107 ; 376217 ;
Abstract
A supervisory operation control system responds to detection of vibration occurring at a predetermined location of an equipment for causing the equipment susceptible to adverse influence of the vibration to perform a predetermined supervisory operation. Transition to the supervisory operation is enabled when a product of speed and displacement of the vibration exceeds a predetermined value.