Hydraulic cutter
US4382331A · kind A · utility
28Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1981 |
| Grant date | May 10, 1983 |
| Priority date | — |
| Expiry date | May 6, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D15/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hydraulic cutter apparatus provided herein comprises a piston slidably disposed in a cylinder, pumping apparatus for feeding a working fluid to the cylinder thereby axially displacing the piston for cutting operation with a cutting blade mounted at the front end of the piston rod. Release valve apparatus are provided for returning back the working fluid from the cylinder whose inner pressure is thereby lowered, allowing the piston to move back to the home position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.