Dental handpiece
US4278429A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1979 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Dec 18, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C1/185
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dental handpiece, which has a drive motor part connected to a housing and a head part with a socket for supporting a tool for rotation being releasably secured on the housing, characterized by the handpiece being convertible between an angled handpiece and a straight handpiece. This is accomplished by the housing being composed of a first housing member, a second housing member, a device for interconnecting the first and second housing members for swivel movement between a first position with their drive shaft sections extending at an angle to each other and a second position with the drive shaft sections being in axial alignment, and a device for holding the housing members in a selected one of the first and second positions. The head part has a sleeve of a configuration to telescopically cover the second housing member and the majority of first housing member while the members are held in one of the first and second positions so that by changing the head part to provide another head part having a sleeve with a different configuration, the handpiece is converted between an angled handpiece and a straight handpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.