Dental handpiece switch
US4051337A · kind A · utility
12Cited by
8References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1976 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Jan 27, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.