Damped solenoid
US4044323A · kind A · utility
4Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 3, 1976 |
| Grant date | Aug 23, 1977 |
| Priority date | — |
| Expiry date | May 3, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H43/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To slow down the action of a solenoid for use in moving delicate mechanisms, or other time-delay uses, the solenoid frame is provided with a closed end, vented only by a restricted orifice, and the solenoid plunger is fitted with a pressure seal to ensure venting of trapped air only through the restricted orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.