Adjustable pressure-type switch
US4827093A · kind A · utility
12Cited by
2References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1988 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Mar 31, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/2635
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pressure switch has a plunger, axially displaceable by the pressure being measured, which enables a contact pin of a microswitch to be actuated. Between the plunger and the contact pin there is arranged a rocker. The microswitch is fastened to the housing of the pressure switch so as to be displaceable in the main extension direction of the rocker. This provides a way to vary the step-up ratio between the plunger motion and the contact-pin motion, whereby the magnitude of the hysteresis of the pressure switch can be varied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.