Flushing mechanism using phase change fluid
US4955921A · kind A · utility
14Cited by
32References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1990 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | Feb 14, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03D5/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flushing mechanism using a phase change fluid for flushing a toilet bowl with a reduced amount of water. The flushing mechanism includes a containment vessel adapted to fit in a standard-sized toilet tank and means within the containment vessel for forcing water out of the vessel into the bowl to be flushed. The containment vessel includes a collapsible bladder which is loaded with a phase change fluid. Water in the containment vessel is forced into the toilet bowl when the phase change fluid changes from a liquid to a vapor state. A hydraulic actuation system is also provided for actuating the flushing mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.