Drain valve
US7793679B2 · kind B2 · utility
5Cited by
40References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2006 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Jul 15, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0508
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drain valve and method for assembling a drain valve. A valve assembly is inserted into a pipe, and a reduced diameter portion is formed in the pipe to create a substantially water-tight seal between a portion of the valve assembly and the pipe. A second reduced diameter portion may be formed in the pipe to provide a thrust bearing surface for resisting sliding movement of the valve assembly within the pipe. A transverse hole is provided in the pipe to provide access to a rotatable mechanism in the valve assembly to permit and restrict fluid flow through the drain valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.