Toilet-bowl flush system and devices therefor
US4128906A · kind A · utility
Inventor
Key dates
| Filing date | Jul 5, 1977 |
| Grant date | Dec 12, 1978 |
| Priority date | — |
| Expiry date | Jul 5, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03D1/144
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention provides a device for converting a single volume cistern into a selective volume cistern adapted to selectively allow both low volume and high volume flushes wherein the single volume-cistern is of the type having a water inlet, a water outlet, a valve mechanism operationally linked to a float lever arrangement for controlling the amount of water flowing into the cistern, a flush actuating means and a flushing mechanism operationally linked to said water outlet, said device comprising a hollow vessel provided with an opening at its upper end for the entry of water therethrough and being adapted to be inserted into the flushing cistern in a first normally closed rest position which at least partially surrounds the flushing mechanism and forms an open ended water column extending above and around said water outlet to exclude a portion of the water in said cistern from passing through said water outlet while said vessel is in said first position for low volume flushes and wherein at least a section of the upwardly extending surface area of said vessel is adapted to be tilted and pivotally displaced from said first rest position to a second displaced open-position to form…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.