Piezoelectric igniter for lighters

Details Piezoelectric igniter for lighters Piezoelectric igniter for lighters

1974-05-14

1976-10-05

Bartis, A.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 87, 317DIG11, 431255, H01L 4104, F23Q 300

Patent

active

039847381

ABSTRACT:
An igniter utilizing a piezoelectric transducer intended particularly for lighters is described. It consists of a tubular housing of plastic material. Placed in the bottom of the housing, and loosely fitting therein, are a pair of barium titanate crystals stacked one over the other with a contacting electrode. A striking hammer is suspended above the crystals and held by the magnetic force of a permanent magnet. A spring acting on the hammer is arranged to be compressed by an actuating cap. Upon such compression of the spring which overcomes the retentive force of the magnet, the hammer is propelled against the transducer, thereby creating the generation of an electric potential used to provide an igniting spark. A spring plate placed between the bottom of the housing and the crystals. The spring pressure of the spring plate on the crystals is adjusted by a screw seated in the bottom of the housing.

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patent: 3758827 (1973-09-01), Schroder et al.
patent: 3793561 (1974-02-01), Lundh

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