Rainfall detecting automatic sprinkler control system
US5853125A · kind A · utility
Inventor
Key dates
| Filing date | Jun 26, 1997 |
| Grant date | Dec 29, 1998 |
| Priority date | — |
| Expiry date | Jun 26, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/189
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A new Rainfall Detecting Automatic Sprinkler Control System for controlling an automatic sprinkler system according to the amount of precipitation received. The inventive device includes a hollow conical member having a plurality of apertures projectable into ground, an elongated tube secured coaxially within the conical member, a float member within the tube, an insulated rod, a first and second contact, and a contact disc. The enlarged open end of the hollow conical member captures precipitation which is collected within thereof. The float member is elevated in relation to the amount of collected precipitation thereby elevating the insulated rod which opens the electrical connection between the first contact and the second contact for controlling the automatic sprinkler system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.