Piezo film sensor switch responsive to blowing forces

Details Piezo film sensor switch responsive to blowing forces Piezo film sensor switch responsive to blowing forces

1998-07-02

1999-08-10

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

310338, 310311, 310339, G08B 2100

Patent

active

059365218

ABSTRACT:
A piezo film sensor switch or a pyro film sensor switch for an electric candle or lamp, or birthday card or birthday box. The switch is omnidirectional and includes a housing having a wall with at least one opening; a piezo film within the housing and having at least two sides, one of the sides facing the opening; and two electrical conductors each in electrical contact with a respective one of the sides of the piezo film, the piezo film being responsive to air currents of sufficient magnitude to mechanically actuate the piezo film to pass electrical current through the two electrical conductors. Pyro film may be arranged in place of the piezo film in the same manner.

REFERENCES:
patent: 4187532 (1980-02-01), Naffier
patent: 4477249 (1984-10-01), Ruzek, et al.
patent: 4615214 (1986-10-01), Burns
patent: 5174645 (1992-12-01), Chung
patent: 5201322 (1993-04-01), Henry et al.
patent: 5582478 (1996-12-01), Ambrosino
Mike Tripoli Designs, "Candle Mechanical Detail", 1996.

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