Patent · US Expired

Object-support column

US7188819B2 · kind B2 · utility

2Cited by
10References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 31, 2002
Grant dateMar 13, 2007
Priority date
Expiry dateJul 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.