Flow actuated switch
US4513184A · kind A · utility
Inventor
Key dates
| Filing date | Sep 16, 1983 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Sep 16, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H35/405
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fluid flow indicator including a magnetic switch mounted adjacent a fluid carrying conduit. A magnetic plunger is loosely contained by the conduit and is urged to the proximity of the switch by fluid flow through the conduit thereby activating the switch. The magnetic plunger is restricted to movement within the monitoring conduit by rods transverse to the fluid flow, one located at the inlet and the other located at the outlet of the monitoring conduit, and having their termini operatively received and retained in annular channels formed in the walls of the monitoring conduit. A process for fabricating a fluid flow indicator as claimed herein is also taught.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.