Electrically conductive chair support with sliding bushing
US4964015A · kind A · utility
5Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 1989 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Mar 27, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05F3/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A chair for conducting the electrostatic charge of an occupant to the floor on which the chair rests, with the chair seat carried on a support unit which permits rotation of the seat and adjustment of the height of the seat above the floor. The support unit includes an outer sleeve and an inner sleeve moving vertically relative to the outer sleeve, and an electrical resistor connected between the inner and outer sleeves and in sliding contact with at least one of the sleeves, typically by means of a spring finger strip mounted in a groove of a bushing or collar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.