Height-adjustable chair or table pedestal
US4139175A · kind A · utility
27Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1977 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Jun 24, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C3/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A height-adjustable chair or table pedestal having a hydraulically lifting cylinder and a piston rod telescopically extending therefrom is characterized by having the lower end of the piston rod mounted in the base of the device, with an energy source, hydraulic pump means and a lifting mechanism mounted as a sub-assembly out of view on the underface of the chair or table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.