Thermostatic garden hose protection device
US4948041A · kind A · utility
Inventor
Key dates
| Filing date | Mar 3, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Mar 3, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/022
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A device to protect garden hoses and other fluid conduits from wear and bursting caused by pressure build-up due to heat generation particularly from the sun's rays. The device can be attached between the house spigot and hose or at the end of a hose between the hose and spray attachment. The device comprises a housing with a threaded inlet end for attachment to a hose or spigot, a central chamber containing a thermostat in a valve moveably mounted on a spring, which together are adapted to open water release holes at the outlet port end when water temperatures reach a predetermined level and close when the water temperature decreases to a second predetermined level. Sufficient openings in the device, allow full flow of fluid through the inlet port, the chamber and the outlet port and attachment, but still provides protection against pressure build-up when the hose is not in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.