Hazardous fluid dispenser safety system having a mercury tilt switch
US5083676A · kind A · utility
2Cited by
16References
4Claims
0Family size
Inventors
Key dates
| Filing date | Apr 16, 1990 |
| Grant date | Jan 28, 1992 |
| Priority date | — |
| Expiry date | Apr 16, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H29/002
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system for dispensing hazardous fluid particular suitable for gasoline service stations utilizing an electrical impact sensing switch mounted upon each dispenser wherein the contacts of the normally open switch close upon impact occurring at the dispenser and the switch controls a primary electrical circuit energizing the pumps providing pressurized fluid to the dispenser whereby impact forces de-energizes the pumps minimizing to actuate alarms and alert personnel of the impact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.