Device for monitoring fluid pressure in mechanisms such as hydrostatic fluid bearings
US3931738A · kind A · utility
1Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1974 |
| Grant date | Jan 13, 1976 |
| Priority date | — |
| Expiry date | Sep 26, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L13/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Pressurized operating fluid, such as oil for hydrostatic fluid bearings, is directed into a chamber against a plunger urging the plunger into a first position. A monitoring pressure force slightly less than the force of the operating fluid when the operating fluid is at a minimum working pressure is exerted against the plunger tending to move the plunger from this first to a second position. Thus, when the pressure of the operating fluid drops below the minimum working pressure, the plunger is moved to its second position and such movement is sensed, thereby sensing the malfunction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.