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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 406/91 - Permeable member surrounding discharge opening or conduit


Subclass of Class 406 - Conveyors: fluid current
Definition: Subject matter wherein the container has a conduit or opening
No. of patents: 40
Last issue date: 09/01/2009


NumberTitleIssue Date
7581905Vessel for storing particulate matter and discharge device for use in the same
The invention pertains to a vessel (1) for storing particulate matter, such as pulverised coal or fly ash, comprising a main part (2) and, at its bottom portion, at least one discharge device (3), which comprises a converging outer shell (10
09/01/2009
7410329Device for conveying powders through pipelines
A device for conveying powders through pipelines including at least one pumping device which in turn includes a suction inlet and a delivery outlet and a tubular chamber with opposite ends connected respectively to the suction inlet through an input valve and to the...
08/12/2008
7347649Powder purge tube
To supply a powder lacquer sprayer, the coating powder is pressed by a pig through the supply line and, in the process, it is fluidized from the side of the pig which is turned toward the powder. The fluidization air can be led to the powder, for example, by a centr...
03/25/2008
7322793Turbine motor of a rotary atomizer
A turbine, e.g., with a blade arrangement, which receives an air flow in the radial direction and which is located on a carrier surface of the turbine wheel, is used as a drive motor for a rotary atomizer. The drive channel, which contains the turbine blades and whi...
01/29/2008
7316721Ceramic foam insulator with thermal expansion joint
A canister for maintaining entrained particles in a gas stream passing there through. The canister has an outer annular member and an inner porous annular member. The inner porous annular member has rings with at least one expansion zone in each ring. An annular int...
01/08/2008
7275702Valve unit for an electrostatic coating installation
The main needle valve of an electrostatic atomizer has an opto-electronic sensor device with optical waveguides whose faces are opposite a reflecting element of a component moveable with the valve needle for potential-free switch position interrogations. ...
10/02/2007
7270249Pneumatic metering apparatus for flowable solids product
Apparatus for pneumatically metering flowable solids products to a conveying air stream without using mechanical metering devices. The apparatus includes an eductor receiving product from a hopper and connected to an air supply that is automatically adjustable in re...
09/18/2007
7191807Apparatus for toner processing including a variable-orifice non-contact valve
An apparatus (10) for handling bulk particulate material (M) includes a reservoir hopper (16) having a gas-permeable liner (42) and a gas inlet (44) connecting the reservoir hopper (16) to a pressurized flow of gas sufficient to fl...
03/20/2007
7036750Axial shaping air design for paint atomizer
Rotary atomizer for coating work pieces, with a rotating bell-shaped plate shaft for a bell-shaped plate for discharging a spray stream of a coating agent, at least one steering air outlet for discharging steering air for shaping the spray stream, a housing, and als...
05/02/2006
7018679Coating installation with an atomizer change station
A change station for atomizer (7) and other tools that contains a carousel-like rotatable and/or linearly movable mount (112) is arranged on the wall of the cabin of a coating installation. The arrangement is such that the storage locations of the chan...
03/28/2006
6972052Rotational atomizer with external heating system
In a coating device with a rotary atomizer, for preventing the condensation of spray cabin air on components cooled by the lower-pressure exhaust air of the drive turbine of the atomizer, a heating device is provided, which can heat air flowing through the atomizer ...
12/06/2005
6848867Device for passing heavily flowing bulk material into a delivery pipe
A device for introducing poorly flowing bulk material into a feed line includes a swirl chamber connectable to a feed line so as to form an inlet aperture in a side wall of the swirl chamber. The device further includes a diffuser plate through which a loosening flu...
02/01/2005
6764296Fluidizing method and apparatus
A fluidizing method transports particulates by gravity flow but passes the particulates through a fluidizer which is partitioned by a porous distributor plate to form first and second chambers and wherein the particulate materials pass through said first chamber whi...
07/20/2004
6719500System for pneumatically conveying bulk particulate materials
A system for pneumatically conveying bulk particulate materials generally consisting of a material transport line including a first conduit formed of a gas permeable material providing a material flow passageway having an inlet and an outlet, a second conduit formed...
04/13/2004
6609871System for handling bulk particulate materials
A system for handling a bulk particulate material generally consisting of a vessel for holding a mass of such material; a first elongated tube formed of a gas permeable material, having an inlet communicating with such vessel; a second elongated tube form...
08/26/2003
6485284Gas assisted flow tube and filling device
A gas-assisted flow and filling device for transporting particulate material and filling die cavities includes a source of low-pressure gas for delivering gas to a chamber that is separated from a fluidizing chamber by a porous distributor plate which per...
11/26/2002
6402500Fluidized fillshoe system
A delivery and filling system for filling a cavity with a particulate material is disclosed. The system in one embodiment includes a hopper; a transport device, and a delivery chute. The hopper, transport device, and delivery chute each may have a porous ...
06/11/2002
6296424Apparatus for handling and conveying loosefill
Apparatus for handling loosefill and conveying the loosefill from one location to another comprises a container having a bottom and sides, the container being adapted to receive and contain therein a quantify of loosefill, a blower positioned at one end o...
10/02/2001
6238145Silo with dense phase discharge
A silo for pulverulent and other loose materials of the type that has a base formed in part by a centrally located, inner conical dome. The silo has a vertically oriented material withdrawal conduit through which the loose materials are withdrawn from the...
05/29/2001
5314094Cloth fluidizing membrane for hopper car outlet
A limp, porous membrane (18) is formed from a flexible sheet material (20). The membrane is used with a fluidized hopper outlet (10) containing a pulverant, particulate lading which is fluidized and unloaded via the outlet. A valve installed in the outlet...
05/24/1994
5294217Apparatus for feeding powder coating apparatus with a powder-air mixture
An apparatus for feeding powder coating apparatus with a powder-air mixture, whereby the powder is fluidized in a reservoir, the powder-air mixture that has thereby arisen is conveyed to a dosing container via conveyor lines and is prepared in this dosing...
03/15/1994
5143486Flow promoter for fluidized solids
A device for promoting the flow rate of solid particulates from a fluidized bed of solids into a downcomer extending from a discharge outlet in a wall or the bed includes a hollow, funnel-like, horn element having a lower end connected upstream of the dis...
09/01/1992
5106240Aerated discharge device
The invention is directed to a method and apparatus for establishing and maintaining a uniform mass flow rate of particulate solids and gas mixture from a container to a receiving reactor. A preferred embodiment utilizes a plurality of porous inserts in t...
04/21/1992
5096096Fluidized bed discharge bin
An improved fluidized bed discharge bin comprising a removable closure covering an opening in the bottom of the bin. The closure is of an inverted pyramidal shape having a square base and an offset nadir. A discharge opening is positioned adjacent to the ...
03/17/1992
5049008Air pulse discharge control valve for fluidizing dry particulate material
A self acting pressure air pulse control valve for use with fluidizing and pneumatic conveying systems for dry particulate material comprises a housing having a chamber in which a plate type closure member and an actuating piston are disposed and intercon...
09/17/1991
5030037Porous filter pad for fluid pressure conveying systems
A porous filter pad for use in conjunction with a fluid pressure conveying system is disclosed. The porous filter pad includes a rigid, self-supporting molded plastic body having a predetermined elongated shape with opposed walls. Openings of a predetermi...
07/09/1991
5017053Aeration device for bulk material containers
An aeration device to facilitate the flow and discharge of bulk material granules through a discharge opening in a bulk material container is disclosed. The aeration device includes at least one self-supporting molded plastic hollow body which is adapted ...
05/21/1991
4941779Compartmented gas injection device
Injection of gas into a bed of solids contained in a hopper is compartmentalized to allow independent control of gas to be vented upward and gas and solids to be discharged....
07/17/1990
4848975Hopper system and clamping arrangement for a permeable membrane
A hopper system comprising a hopper having a side wall sloping downwardly and radially inwardly from the inlet at the top of the hopper to the outlet at the bottom of the hopper. Secured to the inside of the hopper is a membrane having a shape generally c...
07/18/1989
4846377Limp, porous membrane for a fluidized outlet
A limp, porous membrane of sheet (i.e., cloth) material for a fluidized outlet is disclosed. The outlet is in communication with a container, such as a hopper within a covered hopper railway car, containing a supply of particulate material for being fluid...
07/11/1989
4439072Fluidized bed discharge bin with aerating blower
A fluidized bed discharge bin comprises a removable closure covering an opening in the bottom of the bin. The interior surface of the closure is covered by an air-permeable sheet whose outer perimeter is held between the bin opening and the closure. Spaci...
03/27/1984
4253824Tramp removal and bed recirculation system
A fluidized bed vessel tramp removal and bed recirculation system comprising a novel dual cone apparatus at the bottom of the vessel....
03/03/1981
4221509Pneumatic discharge of fine material from a container
A container bottom for the pneumatic discharge of fine material from a container comprises a plurality of conveying channels extending radially to a central material discharge zone of the bottom, the bottom of the central material discharge zone being dis...
09/09/1980
4183702Storage and extraction device for powdered products
Apparatus for feeding finely powdered material from a silo to a device illustratively a burner, in which the material in the silo is fluidized and extracted through a proportioning device, such as a screw or a distributor having alveoles. The material fro...
01/15/1980
4086706Feeding and treating system
A feeding apparatus has a vessel with a floor on which is provided a support lining defining with the floor a generally closed space and constituted as a gas-impervious foil formed with a multiplicity of throughgoing holes and a gas-pervious textile sheet...
05/02/1978
4078703Silo having air agitating loosening devices
A large capacity silo for flour-like bulk materials provided with a discharger having a body provided with an inside slanting wall and an annular bottom, a conical hood located above the bottom, broadening downwardly and provided with discharge openings e...
03/14/1978
4023280Valve for ash agglomeration device
A fluidized bed of material retained in a vessel receives a high velocity gas stream through a venturi orifice and passage to assist in the agglomeration of ash particles. The particles form a semi-fixed bed within the passage upstream from the venturi or...
05/17/1977
3989147Bulk cement storage system
A bulk cement storage system which includes storage units for storing the cement, as well as devices for transporting the cement to the storage units and removing the cement from the storage units. The storage units include a circular base member with a h...
11/02/1976
3977540Marine unloading and loading system of powdered and lumpy bulk materials for holds with a pneumatic discharge device
In a marine loading system of bulky materials for ships, Barges and similar vessels, means are provided to handle either powdered materials or lumpy materials. The powdered materials are unloaded by air-flotation means provided with a pneumatic discharge ...
08/31/1976
3976232Device for emptying silos for bulk material, provided with a flat or slightly inclined bottom
An improvement on a silo for delivery of fluid bulk material, such as livestock feed, grain, flour, spices, sugar, and similar provides for an inner compartment adjacent to the bottom of the silo of the shape approximately of a truncated cone or funnel, w...
08/24/1976
 
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