System and method to delay activation of a powered device

Details System and method to delay activation of a powered device System and method to delay activation of a powered device

2006-09-26

2006-09-26

Lee, K. (Department: 2832)

Electricity: circuit makers and breakers

Special application

Liquid or moisture responsive

C200S06145M, C600S343000

Reexamination Certificate

active

07112752

ABSTRACT:
A system and method for delaying the activation of a powered device, such as a battery powered device. The activation of the device is triggered by contact with a particular environmental characteristic encountered by the device. For example, the system can be configured to activate upon contact with a particular pH value. Upon contact with the particular environmental characteristic, the restraining component (such as a magnetic field or a separating member) that prevents activation of the device is moved, modified, or caused to yield such that the device is activated.

REFERENCES:
patent: 3415189 (1968-12-01), Trevorrow
patent: 3868485 (1975-02-01), Sykes et al.
patent: 3997886 (1976-12-01), Lerner
patent: 4313042 (1982-01-01), Ehrhart
patent: 5846744 (1998-12-01), Athey et al.
patent: 5848744 (1998-12-01), Dischner et al.
patent: 6330465 (2001-12-01), Huyberechts et al.

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