Capacitance control system for pneumatic punch press feeders
US4277997A · kind A · utility
1Cited by
4References
15Claims
0Family size
Inventor
Key dates
| Filing date | Mar 14, 1979 |
| Grant date | Jul 14, 1981 |
| Priority date | — |
| Expiry date | Mar 14, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/4632
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An improved multi-stroke control system for a pneumatically operated feeder for punch presses and the like; such system including means to charge and discharge a pneumatic capacitance. The pneumatic capacitance is adapted to be charged in response to the initiation of a first operative cycle of the feeder and to be discharged in response to the completion of said first cycle; said discharge being adapted to initiate a second operative cycle of said feeder. Once triggered the feeder may execute a number of successive operative cycles, the particular number being dependent on the effective volume of said pneumatic capacitance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.