System for detecting liquid in an inground lift
US6814187B2 · kind B2 · utility
7Cited by
13References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Mar 7, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F7/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A system for detecting liquid in an inground lift has a tube with an open end disposed within the internal cavity defined by the containment housing of the inground lift. The tube is in fluid communication with a source of pressurized gas. A pressure sensor generates a signal if the pressure within the air line exceeds a predetermined level, which occurs if the end is blocked by liquid. A control system is configured to respond to the signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.