Class 4/372 - Including means to immerse siphon

Subclass of Class 4 - Baths, closets, sinks, and spittoons
Definition: Subject matter wherein at least a part of the siphon is
No. of patents: 3
Last issue date: 11/05/2002

Number	Title	Issue Date
6473912	Siphon flush apparatus 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 initiat...	11/05/2002
5113536	Jet activated toilet flushing apparatus 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 dumpe...	05/19/1992
4114203	Water closet tank drain valve 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-sha...	09/19/1978

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