Fluid pressure device
US7552912B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 22, 2003 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | May 30, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B2200/89
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid pressure nut 16 has a first load supporting member 17 disposed in a flange 13a and a second load supporting member 18 axially movably attached to the first load supporting member 17, wherein the second load supporting member 18 is screw-connected to a bolt 15 in a screw hole 28. A pressure chamber is provided between the first load supporting member 17 and the second load supporting member 18, and a seal ring 44 is attached to an end portion of a pressure chamber 27. The seal ring 44 includes a first curve portion contacting with the first load supporting member 17, a second curve portion contacting with the second load supporting member 18, and a pressure receiving portion continuing into the first and second curve portions, wherein pressure applied to the pressure receiving portion is converted into axial-directional sealing forces of the curve portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.