Title: Self-releasing switch by negative pressure adherence
Application Number: 85100012 Application Date: 1985.04.01
Publication Number: 1000432 Publication Date: 1986.03.10
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H01H13/54
Applicant(s) Name: Liao Zhi Address:
Inventor(s) Name:
Attorney & Agent:
Abstract:
     A simple-structured and low-cost time self-release switch, characterized by that a elastic rubber bowl adheres on the plate in the switch after expelling the air in it, then owing to the air leakage between the rubber bowl and its boltom plate will self-release at a certain time, so as to control the circuits. The swithch is easy to use, can control the electric switches of staires and corridors, avoid the unnecessary illumination so as to save electricity and lengthen lifetime of lamps.
Time: 11
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