Fluid operated pressure switch for controlling a switching element
US5243158A · kind A · utility
6Cited by
6References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 26, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | May 26, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pressure switch for controlling a switching element includes a spring-loaded piston operatively connected to the switching element and acted upon by a pressure fluid. A diaphragm separates the piston from the pressure fluid for providing a leaktight closure of the working parts of the pressure switch from the fluid stream, with a support ring surrounding the piston and being arranged axially between the diaphragm and a bushing by which the piston is guided in an axial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.