Hydro-pneumatic flush system for toilets
US5388282A · kind A · utility
2Cited by
9References
14Claims
0Family size
Inventor
Key dates
| Filing date | Sep 27, 1993 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Sep 27, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03D5/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pneumatic assisted flush system for toilets having a raised water storage tank and a flush valve discharging into a toilet bowl, characterized by a primary air seal at the rim of the toilet bowl and a secondary air seal established in a flush passage during flushing, whereby the toilet bowl is converted into a closed chamber for the entrapment of air compressed by the discharge of flush water, thereby depressing debris laden water in the toilet bowl in order to initiate syphoning through a flush pipe and into a sewer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.