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:
Jan. 28, 1992
Filed:
Jul. 16, 1990
Applicant:
Inventors:
Kazuhiro Sakata, Katsuta, JP;
Hisao Chiba, Katsuta, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
198322 ; 198323 ; 198810 ;
Abstract
This invention relates to an apparatus for controlling passenger conveyers, such as an escalator and a motor-driven passageway. The control apparatus according to this invention is made up of output device for maintaining the output signal from the computer in the state of the moment when a failure or abnormality is detected when said failure or abnormality is detected by devices for detecting a failure or abnormality of the computer. By the above arrangement, even if the computer fails or becomes out of order, the passenger conveyer operation is continued, and the passengers are prevented from falling down.