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Class 137/403 - By weight of accumulated fluid


Subclass of Class 137 - Fluid handling
Definition: Apparatus in which the liquid level is sensed by means responsive
No. of patents: 81
Last issue date: 07/08/2008


1      
NumberTitleIssue Date
7395633Rainwater collection and diverging system
A rainwater collection and diverging system includes a housing that has a bottom wall and a perimeter wall. A door is positioned in the bottom wall. A hinge hingedly couples the door to the bottom wall and a biasing member is attached to the door and biases the door...
07/08/2008
7347918Energy efficient evaporation system
An evaporation system uses the weight of condensed liquid as an energy source. An inlet feed is introduced into an enclosure through an inlet. The inlet feed is vaporized in an evaporation region of the enclosure, and condensed to a liquid in a condensation region o...
03/25/2008
7325781Automatic bathroom flushers with modular design
A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou...
02/05/2008
7263981Controlling evaporative emissions in a fuel system
Methods and fuel systems to reduce evaporative emissions of a volatile fuel. A fuel tank contains fuel, a carburetor mixes air with the fuel from the fuel tank, and a plurality of fluid paths route fuel amongst and/or between the fuel tank and the carburetor. A valv...
09/04/2007
7219468Automatic watering device for hanging baskets and planter boxes
An apparatus for automatically watering a plant in a container by regulating a flow of water to the container through flexible tubing. Upper and lower jaw members are interconnected by a horizontal pivot axis so that they develop a scissors action. A jaw area is for...
05/22/2007
7188822Enclosures for automatic bathroom flushers
A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the ou...
03/13/2007
7156363Bathroom flushers with novel sensors and controllers
A bathroom flusher (10) includes a body having an inlet (12) in communication with a supply line and an outlet (16) in communication with a flush conduit, a valve assembly in the body positioned to close water flow between the inlet and the outl...
01/02/2007
7134403Aquarium overflow system standpipe
An aquarium overflow system includes a standpipe with snap-fit mounting constructions, an air vent, air and water apertures, and an adjustable height version. ...
11/14/2006
6644344Method and apparatus for metering a flow rate of a fluid
A method and apparatus for measuring the flow rate of a fluid based on the fluid weight. A container is provided between a fluid source and a fluid removal system. A valve is arranged between the fluid source and the container, to control the admitting of...
11/11/2003
6640828Flushing apparatus and method thereof
The flushing apparatus comprises a reservoir for storing liquid, the reservoir having an outlet end movable between a raised position where liquid accumulates in the reservoir, and a down position where liquid stored in the reservoir is flushed out; a cou...
11/04/2003
6340030Apparatus for metering a plurality of different liquid or pasty materials
An apparatus for metering a plurality of different liquid or pasty masses to a receiving container including: first support for supporting containers for the masses in fixed positions; a fixedly disposed annular frame bearing a number of dispensing nozzles con...
01/22/2002
6276005Water recycling device
A water recycling device, wherein gray water from a bathroom sink is reused to flush a toilet. The device includes a gray water reservoir, means for sensing the level of water in the toilet tank, a pump to transfer water from the gray water reservoir to t...
08/21/2001
6230730Container having collapsible inline fluid-weight control device
A device, and a container having such a device, is provided for filling the container with a predetermined weight of fluid. The device includes an input portion with a throat and a shoulder for introducing fluid into the container. A shut-off mechanism ha...
05/15/2001
6036446Fluid transfer with concurrent system movement for liquid and vacuum
A portable system of inter-connected smaller and larger canisters for near simultaneous vacuum and liquid transfer free from any external power. Captured vacuum in the canisters is employed for waste liquid extraction and a subsequent pressure transfer ma...
03/14/2000
6026837Automated chemical drain system
The present invention provides an automated chemical drain system which includes a buffer tank for collecting used chemical from a process machine, at least two level sensors in the buffer tank for sensing a fluid level and sending out a signal, a control...
02/22/2000
5887609Container having fluid-weight control device
A device, and a container having such a device, is provided for permitting filling the container with a predetermined weight of the fluid. The device and container include a main channel to introduce the fluid into the container at a fill pressure; a dete...
03/30/1999
5871027Vacuum valve controller
A vacuum valve controller for a vacuum sewer system having a suction pipe which is communicated with a vacuum system by opening a vacuum valve, and which is cut off from the vacuum system by closing the vacuum valve, so that soil water in a soil water bas...
02/16/1999
5842498Mounting adapter and assembly for rendering fill valves for tank-type instantly dismountable
Disclosed is a fill valve and mounting adapter assembly combination for tank-type toilets and the like which renders the fill valve internally and instantly mountable and dismountable without the necessity of separating the mounting adapter assembly from ...
12/01/1998
5829465Container having fluid-weight control device
A device, and a container having such a device, is provided for permitting filling the container with a predetermined weight of the fluid. The device and container include a main channel to introduce the fluid into the container at a fill pressure; a dete...
11/03/1998
5752498Elliptical beam load cell
A humidifier for use with a hot air furnace has an upper and lower housing removably connected to one another. The upper housing has a heating element and sensor, water refill inlet, and a control circuit connected to the heat sensor and inlet. The lower ...
05/19/1998
5743290Multi-purpose automatic filling and leveling liquid basin with liquid transfer
A device for dispensing water front a source of water under pressure to at least one water using attachment, includes a basin and a water dispensing adjustable diaphragm fill valve. The water using attachments may have various configurations such as but n...
04/28/1998
5722961Flow control device for use with an intravenous set
Disclosed is a flow control device for use with an intravenous set to control the flow of medicinal fluid in a barrel into patient's body. The flow control device comprises a floating member capable of being supported for floating by the buoyancy of the m...
03/03/1998
5657494Toilet flushing device
The flushing device has an actuating device for optionally triggering a complete or partial flushing. A valve body of drain fittings is raised for this purpose. In the case of a partial flushing, the valve body is raised with a weight body, which loads th...
08/19/1997
5655232Fluid level control device and method
A water level control device has connected tubular housings, one serving as a support for a hose connection and the other serving to house a float assembly for operation of a ball valve within the valve housing. An airtight float serves to raise the one e...
08/12/1997
5653255Sewage treatment system
A sewage treatment system includes a pair of substantially identical unitary fluid treatment modules, each module having a central sedimentation tank surrounded by a peripheral wetland. The sedimentation tanks are coupled through a dosing device to an inp...
08/05/1997
5615701Vacuum valve control device and vacuum valve
A vacuum control valve controls the removal of sewage or other liquid removed from a tank by a vacuum discharge pipe. The control valve uses the amount of liquid in the tank, the atmospheric pressure, and the vacuum pressure of the vacuum discharge pipe t...
04/01/1997
5588458Vacuum valve controller for vacuum sewer system
A vacuum valve controller for a vacuum sewer system including a suction pipe (12) which is communicated with a vacuum system (15) by opening a vacuum valve (14), and which is cut off from the vacuum system by closing the vacuum valve (14) is disclosed. So...
12/31/1996
5563584Liquid level sensing and monitoring system for medical fluid infusion systems
A liquid level sensing and monitoring system for a medical fluid infusion system has an IV spike with a pressure sensor which contacts fluid in an infusion container such as an IV bag or bottle. When an adequate amount of fluid is in the container, the re...
10/08/1996
5535774Apparatus for storing and supplying water for use in catering equipment
Apparatus is disclosed for storing and supplying water for use in a unit of catering equipment, comprising means for controlling the supply of water from a mains source to a water storage tank and means adapted to supply a predetermined volume of water fr...
07/16/1996
5531241Condensate trap and drain for systems under pressure
A condensate removal device for capturing, measuring and removing condensate from a fluid system having air or gas under pressure. The device purges only condensate on demand without loss of relative pressure inherent within the system. A differential pre...
07/02/1996
5361795Furnace waste water freeze protection method
A method to prevent freezing of water in a conduit that carries the water out of a building. The method uses a device that alternately accumulates the water in a container and then dumps it. The water is then carried to the outside of the building through...
11/08/1994
5360412Method and device for regulating intravenous flow
A device for controlling flow rate in an intravenous line comprises a housing having an inlet port adapted to be connected to an incoming segment of an intravenous line and an outlet port adapted to be connected to an outgoing segment of the intravenous l...
11/01/1994
5358000Siphon pump having a metering chamber
A siphon pump system for pumping water from a water source to a supply destination. The system includes a holding canister through which the water flows, and a first timing bucket associated with the holding canister for controlling the admission of air i...
10/25/1994
5259427Package system for collection-transport of waste liquids
An integral, vacuum operated, package system for collecting and transporting waste liquids from, e.g., a defrosted freezer, sink, bathtub, or water fountain, to a vacuum transport conduit connected to a vacuum collection station. The package system prefer...
11/09/1993
5201342Pulsator device
A pulsator device includes a water chamber having a small inlet orifice for inletting pressurized water at a relatively low rate in a continuous manner, and a large outlet orifice. An outlet valve assembly controls the large outlet orifice to open it at a...
04/13/1993
5154205Method and apparatus for maintaining level of water in above-ground swimming pools
The water level of an above-ground swimming pool is maintained at a predetermined level by a small tank attached to the edge of the pool. The tank bottom has an aperture for a conduit to the pool through the side wall thereof, whereby the level of the wat...
10/13/1992
5069243Liquid level control system
A liquid level valve control system includes pressure responsive means compring a first chamber containing a first diaphragm having a port for applying pressure; bleed means enabling air to pass this diaphragm; and passageway means enabling air then to pa...
12/03/1991
5038831Flood stopper for drain systems
A flood stopper system is used to prevent movement of fluid from a floor drain system out onto a floor that is being cleared by that drain system. The flood stopper system includes a balloon-like inflatable element that is automatically inflated to occlud...
08/13/1991
4996726Accelerated rim wash for a toilet
A fill valve (36) has a main valve (34) with a control chamber (44) for controlling the on and off actuation of the main valve. A tube (58) is in fluid communication with chamber (44) and extends into the water at the fill level (46) in tank (10). The flu...
03/05/1991
4977923Pilot-controlled water pressure-operated diaphragm shut-off valve
A pilot controlled diaphragm shut-off valve (13) includes a cushion body (22) disposed in a pilot pressure chamber (20). The cushion body (22)operates to gradually allow the build up of pressure in the pilot pressure chamber (20) as water enters through a...
12/18/1990
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