Timer switch

Details Timer switch Timer switch

2006-05-02

2009-12-01

Nguyen, Matthew V (Department: 2838)

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

C361S501000

Reexamination Certificate

active

07626893

ABSTRACT:
The present invention provides an electrochemical timer device (110) having a source (101) and a drain (102) contact. The device further comprises a switch channel (104) and a delay reservoir (103) that are electrochemically interconnected with a gate electrode (105). The switch channel (104) interconnects the source (101) and drain (102) contacts and is arranged to change electrical conductivity upon electrochemistry therein, and an electrochemical reaction is arranged to occur in the gate electrode (105) and delay reservoir (103) upon application of a drive voltage there between. The delay reservoir (103) is arranged such that the electrochemical reaction occurring therein gradually moves towards the switch channel (104) and eventually reaches the switch channel (104) after a delay time thereby changing the electrical conductivity of the switch channel (104).

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patent: 3768015 (1973-10-01), Moser
patent: 4084511 (1978-04-01), Svrjcek, Jr.
patent: 4103296 (1978-07-01), Hart et al.
patent: 4860269 (1989-08-01), Hennings et al.
patent: 6198701 (2001-03-01), De Jonghe et al.
patent: 2004/0211989 (2004-10-01), Armgarth
patent: 1 933 204 (1971-01-01), None
patent: 2324611 (1998-10-01), None
Search Report dated Jan. 21, 2008 for corresponding European Application No. 06113406.

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