Hydraulic force producing device
US4325274A · kind A · utility
11Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1980 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Jun 11, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/145
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hydraulically operated device for applying a force to a component, for example to tighten a component such as a nut comprises a square peg to engage the nut, first hydraulic means in the form of a motor to rotate the square peg rapidly and second hydraulic means in the form of a piston and co-operating arm arrangement to rotate the pegs slowly with a substantial force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.