Waterless trap
US10458106B2 · kind B2 · utility
0Cited by
18References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2016 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Dec 6, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/789
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A waterless trap for use in a drain assembly includes flow enhancing features to promote the vortex water flow of water received in the trap, an improved sealing arrangement to enhance the seal between a seal member and the housing to inhibit sewer gas leaks from an attached drain pipe by maintaining an evaporation barrier that assists in retaining water in a corresponding p-trap, and a plurality of air passages can allow the trap seal to open with ease when the drain pipe is pressurized. These features may be used in combination with one another or may be independently employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.