Object-support column
US7188819B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2002 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Jul 28, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C3/30
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Object-support column includes an end unit, a guide tube which has a nominal diameter, and end having an end diameter which is smaller than the nominal diameter, and a transition-length portion extending from the nominal diameter to the end diameter, the end being connected to the end unit. A pneumatic tube surrounds the guide tube and the end unit, the pneumatic tube having a conical section with a diameter reduction surrounding the end unit. Alternatively, a guide portion of the guide tube may be supported radially on the inner wall of the pneumatic tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.