Return mechanism for a cyclic tool
US6755336B2 · kind B2 · utility
39Cited by
14References
9Claims
0Family size
Inventors
Key dates
| Filing date | Dec 20, 2001 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Apr 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P27/047
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed and taught herein is a novel vacuum return mechanism whereby the operating mechanism of a cyclic tool may be reset to its start position after having completed its operative cycle. A piston connected to the tool's operating mechanism is caused, by action of the tool's operating mechanism, to create a vacuum within a cylinder during the tool's operative cycle. Upon completion of the tool's operative cycle, the vacuum returns the piston, and thereby the tool's operating mechanism, back to their start positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.