Force applying
US4008970A · kind A · utility
0Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1975 |
| Grant date | Feb 22, 1977 |
| Priority date | — |
| Expiry date | Nov 13, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An hydraulic nut including an annulus, typically of stainless steel, having an annular cavity therein. The cavity is sealed pressure-tight by an annular deformable membrane of the same material as the annulus which is welded to the annulus about the cavity by a fusion weld. An hydraulic fluid, under pressure, typically grease, is injected into the cavity. The membrane is backed up by an annular shoe and the force produced by the pressure is transmitted through the membrane and the shoe to the object to which the force is applied. Very high forces may be applied by this apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.