Pressure fluid operated feed drive system for a movable member
US4141281A · kind A · utility
1Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1976 |
| Grant date | Feb 27, 1979 |
| Priority date | — |
| Expiry date | Jun 28, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/775
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pressure fluid operated feed drive system for a movable member, and particularly for a slide of a machine tool, the system having a source of fluid pressure feeding a pair of interconnected piston and cylinder units connected between the member and a fixed support. The piston rod side areas of the pistons are arranged in effective opposition and valve means are provided to permit pressure fluid to be supplied selectively to the units to enable the member to be moved alternatively by a force derived from differing piston areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.