Dental-surgeon handpiece with battery lighting

Details Dental-surgeon handpiece with battery lighting Dental-surgeon handpiece with battery lighting

1986-03-26

1988-02-16

Peshock, Robert

Dentistry

Apparatus

Having means to emit radiation or facilitate viewing of the...

A61C 100

Patent

active

047252316

ABSTRACT:
This equipment for dental surgeons comprises a hand-piece incorporating at least one bulb for illuminating the treatment area and an endpiece housing a battery. This endpiece comprises on its front end a pair of springloaded contact studs adapted to engage with corresponding concentric tracks formed on the rear face of the handpiece for energizing the bulb. The battery is rechargeable by means of a device comprising two concentric tracks of same diameter as the handpiece tracks and connected to a circuit adapted to switch automatically between a quick-charging condition and a slow-charging condition according to the voltage developed across the battery terminals.

REFERENCES:
patent: 3109238 (1963-11-01), Marks
patent: 3509629 (1970-05-01), Kidokoro et al.
patent: 4561845 (1985-12-01), Meller
patent: 4600384 (1986-07-01), Olsen

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