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...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!

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Class 4/684 - Pop-up drain valve


Subclass of Class 4 - Baths, closets, sinks, and spittoons
Definition: Subject matter wherein the apparatus has a seat in the drain
No. of patents: 16
Last issue date: 06/14/2005


NumberTitleIssue Date
6782564Water-saving toilet
A water-saving toilet includes a two-stage flush button, a water-storing area and a drain way formed in the interior of a toilet bowl and a valve control device positioned in the bowl and consisting of a valve, a valve cap, a drive rod, and an operating rod. The val...
08/31/2004
6725472Combined faucet and drain assembly
A combined faucet and drain system can be installed primarily from above the basin. The faucet includes a quick-connect fastening assembly with a threaded sleeve bolt that also doubles as a life rod guide. A spring-biased toggle fastener threads onto the sleeve bolt...
04/27/2004
6691411Method of installing a wastewater drain assembly for a bathtub
A method of installing a wastewater drain assembly for a bathtub by inserting an L-shaped drain pipe into a drain hole of a bathtub such that an annular flange on the drain pipe rests on a bottom wall of the bathtub. Slideably mounting a lock washer over ...
02/17/2004
6484330Combined faucet and drain assembly
A combined faucet and drain system can be installed primarily from above the basin. The faucet includes a quick-connect fastening assembly with a threaded sleeve bolt that also doubles as a life rod guide. A spring-biased toggle fastener threads onto the ...
11/26/2002
6367102Drain 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
6185760Liquid flow control tap with inexhaustible energy-operated valve
A tap used for controlling the flow of liquid, such as water, oil, or gas, is disclosed. The liquid control tap of this invention has a valve capable of being effectively operated using inexhaustible energy, such as gravity, hydraulic pressure, buoyancy, ...
02/13/2001
6154898Wastewater 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
6061847Linkage 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
5946747Passageway valve for toilet with two flush modalities
A two flush modality toilet composed of a bowl, a tank connected with the bowl wherein the tank is connected to a water supply, a conventional flush modality for flushing solid waste from the bowl, and a urinal flush modality for flushing liquid only wast...
09/07/1999
5873136Pop-up bowl valve for toilet with two flush modalities
A two flush modality toilet composed of a bowl, a tank connected with the bowl wherein the tank is connected to a water supply, a conventional flush modality for flushing solid waste from the bowl, and a urinal flush modality for flushing liquid only wast...
02/23/1999
5819337Link joint
The object of reducing the assembly costs in the course of producing an adjusted, angularly movable coupling between a pull rod and a plunger rod by means of a constructively further improved link joint, as well as the production costs for the connecting ...
10/13/1998
5333327Apparatus for opening and closing a drain
Disclosed herein is a mechanism for remotely opening and closing a drain of a basin by means of a flexible rod moving through a non-linear tube. The rod connects a drive member, pushed or pulled by a user, with a member linked to a plug which opens and cl...
08/02/1994
5123123Bathtub overflow control device
A control mechanism for use with a bathtub having a drain opening and an overflow opening, with the drain opening having a stopper moveable between open and closed positions. The control mechanism includes a pipe for coupling the bathtub drain opening to ...
06/23/1992
4920582Universal waste and overflow drain assembly
A universal bath waste and overflow drain assembly (10) comprises an overflow tube (12), drain pipe (14), t-connector (16), and an adapter (18) which can be interchanged and connected as desired in different drain configurations according to the requireme...
05/01/1990
4085469Waste control with replaceable cable
A drain plug in the outlet of a plumbing fixture such as a lavatory basin or bath is connected with the waste control handle by means of a flexible cable loosely contained within a flexible tube extending through the overflow pipe and the drain pipe, to o...
04/25/1978
 
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