Class 4/688 - Drain valve

Subclass of Class 4 - Baths, closets, sinks, and spittoons
Definition: Subject matter wherein the apparatus has within a means
No. of patents: 34
Last issue date: 07/10/2007

Number	Title	Issue Date
7240852	Drinking fountain with automatic stagnant water flushing system Drinking fountains can go through extended periods of disuse, allowing for the growth of bacteria and other substances in the stagnant water in the supply passages. Water dispensed from such the drinking fountain spout can come into contact with or be consumed by a ...	07/10/2007
7240854	Eyewash with automatic stagnant water flushing system Eyewash stations can go through extended periods of disuse, allowing for the growth of bacteria and other substances in the stagnant water in the supply passages. Water dispensed from such the eyewash station can come into contact with or be consumed by a user. Embo...	07/10/2007
7240853	Emergency shower with automatic stagnant water flushing system Emergency showers can go through extended periods of disuse, allowing for the growth of bacteria and other substances in the stagnant water in the supply passages. Water dispensed from such the shower head can come into contact with or be consumed by a user. Embodim...	07/10/2007
7178739	Automatic stagnant water flushing system There are a number of water dispensing systems in the art that can go through periods of disuse, allowing for the growth of bacteria and other substances. Water dispensed from such devices can come into contact with or be consumed by a user. Embodiments of the inven...	02/20/2007
7089607	Pool drain assembly with annular inlet The swimming pool floor or spa floor drain assembly of the present invention includes a drain body having a mouth positionable in proximity to the pool wall to serve as a fluid flow inlet, a spaced apart fluid flow outlet positionable below the mouth and a sidewall ...	08/15/2006
7013500	Strainer A strainer includes a water collector on an upper side, and a tube coupled on the bottom of the water collector. The tube has flutes formed on the inner wall. An extendable rod is housed in the tube and has lugs on the periphery to slide in the flutes. A latch membe...	03/21/2006
6966077	Apparatus for automatically operating a drain valve in a washstand Disclosed is an apparatus for opening and shutting a drain valve in a washstand, particularly, an apparatus for automatically opening and shutting a drain valve in a washstand, wherein an automatic opening and shutting means for automatically opening and shutting th...	11/22/2005
6675407	Solenoid activated bathtub drain closure A solenoid activated bathtub drain closure is associated with the bathtub having a bottom with a drain opening therein. A vertically movable drain stopper is mounted over the drain opening. A drain pipe is connected to the drain opening and is conventiona...	01/13/2004
6637051	Overflow and drain control for a bathtub Disclosed is a bathtub drain arrangement for implementation in a soaker bathtub of the type having a main basin coupled to a surrounding overflow trough. There is a drain channel extending from under the trough. There is also a drain pipe for draining wat...	10/28/2003
6609259	Drain assembly and sink A drain assembly is provided that eliminates the need for reconfiguring of existing plumbing during installation of a deep-sink assembly while maintaining a suitable working height. The drain assembly including a hollow body, a valve within the body and a...	08/26/2003
6584625	Drain flow control device for commercial drainage system A fluid flow control device is provided as an integral component of a drainage system for sinks in a commercial environment. This fluid flow control device includes a housing that is disposed beneath a waste valve and configured to define a flow control i...	07/01/2003
6546573	Drain cover assembly A drain cover assembly with a hollow conduit member with an open end that penetrates and extends through a drain port of a bathtub, and a drain cover with a center opening, a horizontal flange, and an integral sleeve that extends into the open end of the ...	04/15/2003
6523192	Method and apparatus for automatically disinfecting plumbing fixtures A system for automatically purging residual water from the whirlpool plumbing of a whirlpool bath. The system includes a bathtub, a primary water inlet in hydraulic communication with the bathtub, a primary water outlet in hydraulic communication with the...	02/25/2003
6484329	Bladder-controlled stopper device A stopper for selectively blocking a drain to the passage of water. The drain has an inlet, an outlet and a substantially cylindrical throat between the inlet and outlet. A control means is provided for selectively feeding control fluid under hydraulic pr...	11/26/2002
6470514	Drain valve A drain valve 1 comprises a body 10 having a cylinder portion 11 and a branch portion 12, to which are mounted a plug 30 constituting a valve seat and a hose joint 70. A poppet 50 constituting a valve means is slidably inserted to the plug 30. An operatin...	10/29/2002
6415463	Drain stop and overflow mechanism for a bathtub A drain stop and overflow mechanism that is particularly well-suited for use with a free-standing bathtub includes a drainpipe that can be connected to a water drain opening in the bathtub. A standpipe can be connected at a bottom end to a waste water lin...	07/09/2002
6367102	Drain assembly with installation aid stopper guide A drain assembly mountable in a drain opening of a wash basin includes a movable stopper guide that can be used during installation to align the drain flange to the drain body from above the sink. The stopper guide supports at an upper end a stopper for c...	04/09/2002
6341391	Hidden drain outlet structure for sink An improved hidden drain outlet structure for sink includes a drain pipe, a drain head screwed to the drain pipe at an upper end thereof and a filter movably screwed to the drain head. The filter may trap and collect external articles and garbage to preve...	01/29/2002
6317906	Strainer assembly for bathtub drains and the like A strainer assembly for bathtub drains has a strainer body with a circular horizontal flange having a center opening and which is adapted to fit over and around a vertically disposed drain port in the bottom of a tub or the like. A hollow bushing extensio...	11/20/2001
6282730	Magnetic stopper A waste outlet fitting for use in tubs, sinks and basins. A magnetic plug is mounted in the waste outlet which can be rotated between open and closed positions through the use of a rotatable magnetic located proximate to the plug. The magnetic is rotatabl...	09/04/2001
6154898	Wastewater drain control for fluid compartments A wastewater drain control for fluid compartments has a waste water discharge port in the bottom thereof and in communication with a vertical drain pipe. A valve seat element is in the pipe below the port and has an inclined annular valve seat surface and...	12/05/2000
6119283	Method and apparatus for evacuation of liquids A method and apparatus for evacuation of liquids, such as wastewater from e.g. wash basins, urinals, bath tubs or showers, whereby the liquid is collected in a sump, generates a hydrostatic pressure and is evacuated from the sump through a vacuum pipeline...	09/19/2000
6061847	Linkage assembly for a pop-up drain stopper An improved linkage assembly for a pop-up drain stopper assembly includes an elongated connector bar having a plurality of apertures adjacent both its upper and lower ends. The assembly also includes a stem having a J-shaped portion of its lower end that ...	05/16/2000
6058526	Drain assembly The drain assembly is constructed with a segmented ball valve of stainless steel or plastic which is rotatable between an open position and a closed position by a shaft extending from the drain body. An annular valve seat is biased against the valve body ...	05/09/2000
5996143	Pop up lavatory plug The pop up lavatory plug comprises a body which depends from a head and has a trailing connector. The connector is elongate and has a linear array of bores therein. The head has a cavity in a top surface thereof which engages an overcap. Extending downwar...	12/07/1999
5662138	Drop head structure The present invention relates to a water drop structure which not only functions as a water drop but also prevents pests from intruding indoors, smell from leaking indoors, and sewage back flow when the robe is clogged. It has a main body, main drum, cont...	09/02/1997
5419359	Gas and liquid backflow-preventing valve device for drains A valve device for use with a drain provided with a pipe having an entrance for collecting liquid leading to a P-trap beneath the entrance. The device comprising an open vessel, in use positioned at the entrance of the pipe, having walls and a floor defin...	05/30/1995
5363518	Popup drain stopper A plunger assembly 42, which functions as a popup drain stopper, includes a one-piece plastic body 44 formed with a head 50 at an upper end thereof. A connector 48 is formed at a lower end of body 44. A dome-shaped decorative cap 52 is removably assembled...	11/15/1994
5050247	Drain valve and lift rod connection A drain valve and lift rod device comprises a drain hole screen or filter (10) at the lowest portion of a lavatory (20), a plug (30) disposed below the top of the drain hole screen removably inserted into the drain holes (11), a lift rod (40) engaged with...	09/24/1991
4945579	Drain valve activator assembly A drain valve activator assembly for a container such as a bathtub is disclosed. In one embodiment, there is an overflow plate mountable on a side wall of the tub at the overflow outlet. A stem is positioned through the plate so as to rotate on its own lo...	08/07/1990
4523339	Sink drain valve In a kitchen sink, it is known to have a drain plug at the bottom of the sink; it is unpleasant to remove this plug when the sink is full of liquid. In this invention, a sliding valve controls the flow of liquid from the sink within the sink drain tube. A...	06/18/1985
4457030	Waste outlet fittings A waste outlet fitting for a bath, basin, sink or the like comprises a tubular body in which a plug is captively mounted. The plug includes a part-spherical periphery which is complementary to a part-spherical seat formed in the tubular body. The plug may...	07/03/1984
4402093	Emergency valve unit for preventing overflow of a toilet An emergency valve unit which can be sold as a kit and which can be easily and quickly installed into typical, commercially-available toilets to prevent the bowl of the toilet from overflowing during the flushing thereof. The valve unit has a relatively t...	09/06/1983

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Class 4/688 - Drain valve