Abstract: A flush mechanism for a toilet with a tank can include a float basket with a drainage port and at least one peripheral wall. A flexible conduit can be secured to the float basket to provide a liquid flow path from the drainage port to a flush port of the tank. The drainage port can be disposed eccentrically within the float basket, a top profile of the at least one peripheral wall can be inclined, or a rotatable collar can be provided to control flow of water into the drainage port.

Abstract: A siphon flush apparatus is described which by means of a sliding conduct coupled to a discharge conduct allows the formation of a siphon during the flush operation of a cistern without the need of a jet stream of water, valve means or a piston to initiate said siphon. In addition, the apparatus of the present invention can remain without any leakage into the flushing tube when it is at rest position and need not an additional overflowing discharging pipe to drain an excess of water when the supply valve of the cistern fails.

Abstract: A toilet flushing apparatus characterized by an inherently leakproof syphon, primer and flush tube aligned with a flush pipe into the toilet, with a jet opening from the discharge of the syphon to initiate flushing when a charge of water is manually dumped from a bucket and through the flush tube.

Abstract: A self-contained, recirculating flush liquid, type of water closet for passenger aircraft; wherein, the means for periodically draining the contents of the waste holding tank, comprises an inverted U-shaped tube which is separated at the bend of the U-shape or elbow thereof, into approximately two half-parts. These half-parts are joined by a movable or flexible connection in order that one of the half-parts can be moved relative to the other half-part. One end of the U-shaped tube is rigidly fixed to and projects out from the bottom of the tank; and the other movable half-part has an intake nozzle opening which when it is positioned at the bottom surface of the tank, it is at an operative waste removal position, and when it is moved to a raised position where the intake nozzle opening is at the top of the tank, the removal of waste from the tank is prevented.