Pneumatically controlled air motor
US4870891A · kind A · utility
3Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1989 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Mar 13, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L25/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A double acting piston and cylinder air motor with pneumatically actuated pilot valves for shifting a directional control valve, where the pilot valves are controlled by pilot ports in the cylinder as they are uncovered by the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.