E - Fixed Constructions – 03 – D
Patent
E - Fixed Constructions
03
D
4/19, 4/27
E03D 1/00 (2006.01) E03D 1/14 (2006.01) E03D 1/24 (2006.01)
Patent
CA 1045307
ABSTRACT OF THE DISCLOSURE A device is provided for converting a single-volume flushing cistern of the type having a water inlet, a water outlet, a valve mechan- ism operationally linked to a float lever for controlling the amount of water flowing into the cistern, a flush actuating means and a flushing mechanism operationally linked to the water outlet, into a selective volume flushing cistern adapted selectively to allow both partial and complete flushing. The device comprises a hollow vessel insertable into the flushing cistern and adapted normally to rest on the bottom of the cistern and at least partially to surround the flushing mechanism and water outlet thereof. The vessel is provided with an opening at its upper end for the entry of water therethrough and with at least one selectively openable port at its lower end. Thus, the vessel is adapted to assume a first normally closed rest position in which the openable port remains closed for partial flushes. At least a portion of the vessel is adapted to be pivotally displaced to assume a second displaced open position in which the openable port is opened to allow complete flushes. The vessel is further characterized in that, upon the insertion of the device in the cistern, the opening of the openable port and the actuation of the flushing mechanism, the displaceable portion of the vessel is adapted, in its dis- placed open position, to engage and to be restrained in that position by a standard water level responsive part of the cistern. In this way, the openable port is maintained in its open position during the entire flushing action and until the completion thereof, and whereafter the portion is released from its displaced position permitting the openable port to be closed. This enables the conserving of flush water when the amount of waste in a toilet bowl is very small.
254781
Ben-Gurion University Of The Negev Research And Development Authority
Raz Zeev
LandOfFree
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