Elastically expandable positioning device
US6698992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2002 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Oct 9, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S414/139
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An elastically expandable positioning device for positioning a cover of a unified pod is disclosed, which has a central fastener having one end protruded on the interface plate and an axial input hole opened at another end, and at least one radial distributing hole equally opened at its circular surface; a ring-shaped inflatable body made from an expandable elastic material; a supporting ring encircled around the central bolt and positioned above the distributing hole, for supporting the inflatable body, the supporting ring having at least one radial inflating hole equally positioned corresponding to the radial distributing hole of the central bolt; and an input fluid source connected to the axial input hole of the central bolt, for providing an input fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.