Fluid flow monitoring system
US4642614A · kind A · utility
16Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1986 |
| Grant date | Feb 10, 1987 |
| Priority date | — |
| Expiry date | Apr 11, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8175
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system for monitoring flow of lubricant in a line in a lubrication system wherein, in normal operation, lubricant is intermittently delivered through the line, the system comprising a thermistor in the line adopted to be cooled by lubricant flowing in the line, a timer for intermittently timing out periods during each of which a delivery of lubricant should occur, and a monitoring circuit which includes a fault signal actuated at the termination of any period in which a normal flow of lubricant has not occurred and the thermistor accordingly has not been cooled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.