Title:
【発明の名称】停電回復後の起動阻止装置
Document Type and Number:
Japanese Patent JP3092474
Kind Code:
B2
Abstract:
Re-powering an electrical equipment after recovery of service interruption is prevented if the power switch of the electrical equipment stays in ON position. During a transit period of time just after recovery of service interruption, the detection voltage from a post-voltage detection circuit is set to exceed the detection voltage from a pre-voltage detection circuit. In this condition, a photo triac connected in series to the power switch is rendered non-conductive so that the electrical equipment will not be energized.
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| WO/2006/019834 | ABRASIVE ARTICLE DETECTION SYSTEM AND METHOD |
Inventors:
Eiji Nakayama
Shigeru Shinohara
Masaki Niyada
Shigeru Shinohara
Masaki Niyada
Application Number:
JP10525295A
Publication Date:
September 25, 2000
Filing Date:
April 28, 1995
Export Citation:
Assignee:
Hitachi Koki Co., Ltd.
International Classes:
F16P7/02; H01H9/54; H02H11/00; H02P25/10; (IPC1-7): H02H11/00; F16P7/02; H01H9/54
Domestic Patent References:
| JP5299001A | ||||
| JP5921289A | ||||
| JP57158132U |
Other References:
【文献】西独国特許出願公開3146494(DE,A1)