发明名称 |
Adjustable-height chair column |
摘要 |
An adjustable-height chair column comprises an upright tube and a gas spring that is disposed coaxially in the upright tube. The gas spring comprises a valve for actuation of the gas spring. This valve is embodied for opening upon relief of the casing of the gas spring in relation to the upright tube.
|
申请公布号 |
US2005161576(A1) |
申请公布日期 |
2005.07.28 |
申请号 |
US20050038270 |
申请日期 |
2005.01.21 |
申请人 |
SUSPA HOLDING GMBH |
发明人 |
BOEHM WALTER;KASTNER HELMUT;KNAUST HOLGER;WUNDERLING GERHARD |
分类号 |
A47C7/34;A47C3/30;F16F9/00;F16M13/00;(IPC1-7):F16K17/34 |
主分类号 |
A47C7/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|