Electric plaster cast saw control system

Details Electric plaster cast saw control system Electric plaster cast saw control system

1991-11-12

1992-05-26

Watts, Douglas D.

Cutlery

Cutting tools

Saw

30370, 128317, 606172, B27B 902, B23D 4708, A61F 1304, A61F 1502

Patent

active

051155672

ABSTRACT:
An electric plastic cast saw control system for cutting off of plastic cast composed of an inner layer of absorbent cotton and an outer layer formed by hardened covering material including a thin conductive plate placed between the inner layer and the outer layer so that a relay device is triggered to cut off power supply to electric saw on the instant the saw gets contact with the thin conductive plate and consequently stop the electric saw instantaneously, and a reset device to resume power supply to the electric saw automatically or manually after cutting off of the power source.

REFERENCES:
patent: 4625405 (1986-12-01), Hudnutt
patent: 4637391 (1987-01-01), Schlein
patent: 4887598 (1989-12-01), Berke
patent: 4976034 (1990-12-01), Whitman

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