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. 31, 1987
Filed:
Jan. 17, 1986
Kazutoshi Ohta, Nagoya, JP;
Minoru Nakata, Ichinomiya, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A period of time required since the output signal of an acceleration detector for detecting an earthquake exceeds a first set level, until it reaches a second set level greater in value than the first set level, is measured, and a calculation is executed on the basis of the measured value thereby to predict the scale of the earthquake, and a resetting period of time since an elevator is brought to a stoppage operation due to the earthquake, until the stoppage operation is released, is calculated on the basis of the predicted scale of the earthquake. Thus, the period of time till the reset is automatically set is variable according to the scale of the earthquake.