Surgical chair for a doctor
US4061304A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1976 |
| Grant date | Dec 6, 1977 |
| Priority date | — |
| Expiry date | Aug 25, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7123
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A surgical chair for a doctor embodying an infinitely elevationally adjustable seat connected with a support column, a stand tube arranged within the support column, at which there is attached a base frame equipped with rollers and a lifting device within the stand tube. The lifting device is operatively connected with the support column and can be unblocked by a lever system so that the seat, depending upon the degree of loading thereof, is elevationally adjustable. A foot pedal located between two overhang members of the base frame is arranged with its upper edge at most 4 centimeters above the floor and with adjustable freedom of movement with respect to the floor. The foot pedal is secured by a lever to an angle lever pivotably mounted at the stand tube and acts upon a plunger of the lifting device. At least three guide grooves are provided at the support column and extend uniformly about its inner periphery and parallel to its central axis. At least two superimposed sets of spaced rollers are secured at the outer periphery of the stand tube in operable association with the guide grooves arranged at the support column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.