System and method for detecting water leakage
US7239246B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2004 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | May 3, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A 3D liquid detection sensor, liquid-sensitive building material, and liquid detection systems have been provided. The 3D sensor comprises a 3D liquid detection field and an electrical connector to supply a resistance measurement responsive to liquid in the detection field. In one aspect, the 3D liquid detection field includes a first plurality of pins having a distal end electrically connected to a first electrical contact of the electrical connector, and a second plurality of pins having a distal end electrically connected to a second electrical contact. In one aspect, each pin includes a building material attachment barb attached to a pin proximal end. This permits the sensor to be fixedly mounted in drywall or ceiling tile, for example. More specifically, the 3D detection field may include a dielectric sheet (either rigid or flexible), and electrically conductive traces formed overlying the dielectric sheet, with pins extending from the traces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.