Pressure-dependent electric switching device
US4180714A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1978 |
| Grant date | Dec 25, 1979 |
| Priority date | — |
| Expiry date | Jun 2, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a pressure responsive electric switching device of the type in which a switch actuating element is oppositely loaded by pressure influenced operating element and an adjustable spring. The switch actuating element is mounted in a sheet metal carrier and the switch to be actuated is mounted in an insulated housing. The connection between the carrier and the housing involves the cutting of the carrier sidewalls in a manner to form lugs and the providing of grooves in the insulated housing for receiving the lugs. The carrier sidewalls also have cut-outs formed in a manner to economically provide knife-bearings for pivotally mounted elements of the switching device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.