Fluid level sensor
US6195013A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 2000 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Apr 4, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7319
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A float sensor that is modular has a mounting bracket which incorporates an O-ring seal and bayonet style resilient mounting fingers which lock the mounting bracket to a tank flange. A tube is ultrasonically welded to the mounting bracket and positions a reed switch housing which is ultrasonically welded to the end of the tube opposite the mounting bracket. The reed switch housing incorporates a stop positioned above a descending cone. The cone terminates in radially outwardly extending fingers that lock a float to the reed switch housing. The float is free to float upwardly along the cone to engage the stop. The float has a ring shaped magnet foamed in place within a low density plastic body. The presence of fluid buoys the float upwardly until the float engages the stop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.