Toilet bowl discharge valve assembly
US8230533B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2006 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | May 28, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03D11/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed are trap valve assemblies for controlling flow from a toilet bowl to a trap way. In one form there is a cartridge unit positionable immediately below a toilet bowl discharge outlet. It has a pivotable gate in a form of a spherical segment. The gate has an eccentric pivoting motion so that it can swing from an open position to a blocking/closing position in which it fully contacts a sealing gasket. The spherical segment has a leading edge which is approximately between +40° and −40° from vertical when the gate is in an open position, to minimize the energy required to close the gate. In another form a ball and socket connection to the gate valve facilitates sealing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.