Strain gauge pump control switch
US8979503B2 · kind B2 · utility
0Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2013 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Jul 31, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B33/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A control switch incorporates a solid state transducer, a strain gauge. The transducer responds to a local environmental condition, such as fluid level, or pressure and exhibits a parameter change which can be detected as an electrical output. Control circuits coupled to the transducer can sense the parameter change and switch a source of electrical energy to a load in response thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.