Electrically variable pneumatics structural element
US7293412B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 9, 2004 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Feb 9, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H15/20
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The internal pressure p1 of the hollow body of a pneumatic structural element that comprises a hollow body (1), at least two traction elements (4) and at least one compression member (2) can be electrothermally varied by means of a fluid. The hollow body (1) houses a void (12) which is filled with a gas (15), and a container (9) which contains a volatile liquid (10). Said liquid (10) can be heated or cooled by means of a heat pump (13). Said heat pump (13) thermally contacts the liquid (10) via lamellas (24). A pressure sensor (14) measures the pressure inside the void (12). A cable (16) links the sensor (14) and the heat pump (13) with control and regulating electronics (23).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.