Ball valve cartridge for use with remote handle
US7975720B2 · kind B2 · utility
4Cited by
5References
20Claims
0Family size
Inventor
Key dates
| Filing date | Mar 25, 2009 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Dec 24, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/88054
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ball valve cartridge is disclosed. It is especially well suited for freezeless hydrant applications and any other application where it is positioned remotely from a handle or other actuating element. The cartridge contains a ball valve element and an internal stem with a key for rotating the ball valve element between open and closed positions. The stem has rotational stop elements that limit rotational movement of the stem and the ball valve element. In a yard hydrant application, a drain valve can be added to regulate the opening and closing of the drain hole. It has an operational range of a quarter turn or ninety degrees.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.