Articulating headrest
US4312538A · kind A · utility
14Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1979 |
| Grant date | Jan 26, 1982 |
| Priority date | — |
| Expiry date | Oct 10, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G15/125
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An articulating headrest for a dental chair having a unidirectional locking means is described. The locking means comprises a locking plate engageable with a pivotable shaft connected to a headrest support means. The locking means is adapted to one-handed operation by an operator and permits unhindered forward rotational movement of the headrest about the support means in order to prevent accidental jamming of the headrest against an object during downward movement of the dental chair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.