Drain and shutoff valve assembly
US4784174A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1987 |
| Grant date | Nov 15, 1988 |
| Priority date | — |
| Expiry date | Jul 29, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6092
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drain and shutoff valve assembly for a water pressure tank. The lower end of the tank is provided with a non-circular opening within which the drain and shutoff valve assembly is mounted. The assembly includes a plastic body having an outer non-circular section, which is received within the opening in the tank, and an inner section having a larger cross-sectional area than the outer section. The valve body is provided with a drain passage which can be opened and closed by a needle-type valve. An annular seal is disposed between the inner section of the body and the inner surface of the tank, while a retaining clip is engaged with a groove in the outer section of the body and bears against the outer surface of the tank to hold the valve body in position within the tank opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.