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:
Jun. 27, 1995
Filed:
May. 16, 1994
Yoshio Miyanishi, Inazawa, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An elevator control apparatus capable of reducing the risk of passengers being confined in an elevator car and capable of preventing damage to equipment as well as danger to passengers. The apparatus includes a safety circuit for detecting an abnormality of the elevator, a flip-flop for storing the operation of the safety circuit, a door-openable region detecting circuit for detecting that a position at which the car is stopped is within a region within which the door of the car can be opened, a control circuit for effecting a rescue operation on the basis of the outputs of the flip-flop and the door-openable region detecting circuit. After an operation of the safety circuit a control circuit continuously outputs a signal for canceling the memory of the flip-flop 35 after the passage of a first predetermined period of time until a second predetermined period of time passes. After the passage of the second predetermined period of time, the elevator car is prohibited from starting.