Dental handpiece switch

Details Dental handpiece switch Dental handpiece switch

1976-01-27

1977-09-27

Schaefer, Robert K.

Electricity: circuit makers and breakers

Special application

Actuated concurrently with operation or use of art device

32 26, 32DIG4, H01H 906

Patent

active

040513378

ABSTRACT:
A handpiece electrical switch assembly is shown comprising a pair of electrical contacts having a dielectric spacer sandwiched between the contacts, the spacer having an opening therein all mounted on the handpiece, and a sliding activator mounted on the handpiece acting to cam a cantilevered finger against the electrical contacts forcing them into electrically conductive contact with each other.

REFERENCES:
patent: 1242115 (1917-10-01), Russell
patent: 2773148 (1956-12-01), Roby et al.
patent: 2816977 (1957-12-01), De Kramer
patent: 3075288 (1963-01-01), Balamuth et al.
patent: 3076904 (1963-02-01), Kleesattel et al.
patent: 3909564 (1975-09-01), Scheingold et al.
patent: 3911241 (1975-10-01), Jarrard
patent: 3956826 (1976-05-01), Perdereaux

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