Device for at least partially blocking an opening and forming a seal in the opening
US9004304B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2013 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Oct 18, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device includes a first body having a curved wall with a top surface that slopes away from the first body and a second body having an interior configured to receive the curved wall of the first body, the interior including a curved ramp with a sloped bottom ramp surface. The second body is mounted on the first body with the bottom surface of the curved ramp resting on the top surface of the curved wall. A compressible seal extends from the first body bottom, and a shaft projects from the second body through a passage in the first body and into the interior of the compressible seal. Rotating the bodies relative to each other causes the shaft to pull the seal against the first body and radially expand the seal against an interior wall of an opening in which the device is placed to form a seal therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.