At Lower End Or Prefilt Receiver Patents (Class 210/482)
  • Patent number: 5526612
    Abstract: A device for use in association with roof gutters and downpipes for the purpose of removing debris and like items from rainwater as it flows into the downpipe. The device comprises a box compartment having an upwardly facing inclined inlet over which a primary screen is located, and a lower outlet connected to a downpipe through which the filtered water passes. Debris is washed over the inclined screen to the exterior of the device. More than one screen of varying mesh size may be provided.
    Type: Grant
    Filed: October 17, 1994
    Date of Patent: June 18, 1996
    Inventor: Rodney G. Wade
  • Patent number: 5507948
    Abstract: A ring for supporting a coffee filter within a filter basket of a brewing device. The inventive device includes a support ring positionable within a filter basket so as to capture an upper edge of a coffee filter between the ring and the basket. A plurality of vertical stanchions depend from the support ring for engaging a bottom of the basket to support the ring at a desired position therein. An adjustment assembly is provided for varying a diameter of the ring and each stanchion includes frangible notches permitting sizing of the stanchions to a desired height.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: April 16, 1996
    Inventors: David G. Wargo, Susan B. Wargo
  • Patent number: 5503740
    Abstract: A filter apparatus includes a cylindrical reservoir with a pistol grip handle. A conical funnel is releasably mounted on the reservoir by quick release threads. A plurality of radially extending support ribs within the funnel support a porous filter disk secured between the reservoir and the funnel. A depending annular seal ring on the reservoir defines a sealing edge which engages the filter disk and seals it against a seal surface and seat on the interior surface of the funnel.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: April 2, 1996
    Assignee: Teledyne Industries, Inc.
    Inventors: Roberta L. Callaghan, Michael A. Cammack
  • Patent number: 5474679
    Abstract: A filter (32) is provided for a medical sterilization container (10) having a port (18,22,24) allowing fluid communication between the interior of container (10) and the surrounding environment. A peripheral frame (44) is adapted to cooperate with the port (18,22,24). A plurality of cross-members (54) span an aperture (48) formed by a frame (44). A filter medium (58) is disposed across the aperture (48) so as to be interposed between the interior of the container and the cross-members (54).
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: December 12, 1995
    Assignee: Johnson & Johnson Medical, Inc.
    Inventors: Robert L. Nichols, William H. Patterson
  • Patent number: 5472622
    Abstract: An improved salt basket for dewatering solids, particularly salts resulting from evaporation of industrial wastewaters. The salt basket system includes a pressurizable vessel having a screen floor situated above a bottom liquid collection head, an inlet for the brine/solids slurry from which solids are to be separated and dried, an inlet for air, an inlet for steam (the latter two inlets may be combined, where convenient), an inlet for solids free feed, and a drain outlet (these two may be combined where convenient into a combination feed/drain connection). Preferably, an automated system for introducing feed brine and for removing the solids product is provided. For safety, a pivotally attached lower door has a hydraulic failsafe closure mechanism and locking safety latches to prevent the door from inadvertently opening.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: December 5, 1995
    Assignee: Ionics, Incorporated
    Inventors: Robert L. Solomon, Ferris C. Standiford, Joseph Bostjancic, Dan Peterson, George R. Jones
  • Patent number: 5464541
    Abstract: A device (10) for separating liquid samples has a sample container (12), bottom wall (20) of which has an outlet opening (22) provided therein. The outlet opening (22) is joined by an outlet spout (24) extending in the axial direction of the sample container (12). On bottom wall (20) there is a separation layer (28). Below sample container (12), a collecting container (32) is arranged abutting sample container (12) such that an exchange of air between the interior of the collecting chamber (32) and the environment is possible, yet an escape of liquid is largely inhibited. The contact surface between collecting chamber (32) and sample container (12) and end (26) of the outlet spout (24) through which the liquid is discharged, are axially spaced apart.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: November 7, 1995
    Assignees: Minnesota Mining and Manufacturing Company, Diagen Institute fur molekularbrologische Diagnostic, GmbH
    Inventors: James E. Aysta, Metin Colpan
  • Patent number: 5425882
    Abstract: The invention relates to an apparatus for removing dirt particles (with and without oil deposition) from water or from waste water without free oil, in particular waste water which occurs in commercial laundries after the washing of garments, work clothes and the like. It includes a closeable tank (10) which has an inflow opening (11) and at the bottom a sieve drain (12, 13), and in the interior above the drain a layer of textiles is provided which contains in particular used garments as filter.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: June 20, 1995
    Assignee: Boco GmbH & Co.
    Inventor: Reinhard Wolk
  • Patent number: 5415774
    Abstract: A water filtration device is disclosed which, in one aspect, has a hollow device body with filter apparatus therein. The device body is removably nested in a device extender which, upon removal from the device body is invertible and re-emplaceable on the device body to provide an extended member for facilitating the scooping water to be flowed through the device. With appropriate filter media in the hollow device body, potable water is produced. A system is disclosed including the device body, device extender, and a water container securable beneath the device body to receive and store the purified water flowing from the device body.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: May 16, 1995
    Assignee: Greenland Industries, Inc.
    Inventors: Fredrick J. Cowan, Earl B. Damron, Larry W. Johnson, Shelby L. Howell
  • Patent number: 5409602
    Abstract: An elongated body member is of inverted U-shape and is capable of seating in a gutter over a downspout opening. The body member has cross slots and bottom edge notches in an arrangement that efficiently stops leaves and debris but that allows water to drain through. Further, the body member has tapered end portions terminating in rounded tip ends that also are engaged by leaves and debris for efficient straining. The construction of the body member allows the sides to be squeezed together for fitting into eave troughs and the like during installation.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: April 25, 1995
    Inventor: Gordon U. Sorenson
  • Patent number: 5395515
    Abstract: A tray assembly for use in receiving and retaining used moist brewing substances and the like from a beverage brewing apparatus and separating a liquid portion therefrom. The tray assembly is in communication with an entry port which deposits moist brewing substances therein. A drain line in the brewing apparatus carries separated liquids away from said tray assembly. The tray assembly includes a tray body, a liquid separation portion retained in said tray body for drawing off liquids from moist brewing substances, and a controllably sealable tray valve assembly attached to the tray body and operatively engaging the drain line for draining liquids from the tray assembly. A first area in the tray body between the entry port and the liquid separation portion communicates with the entry port and defines a receiving and retaining space. A second area in the tray body between the liquid separating portion and the valve assembly communicates with the tray valve assembly and defines a liquid collection space.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: March 7, 1995
    Assignee: Bunn-O-Matic Corporation
    Inventor: David F. Ford
  • Patent number: 5378354
    Abstract: An apparatus for recovering liquid from liquid contaminated small articles of manufacture has a housing which defines upper and lower chambers separated by an inclined perforated plate. A vacuum producer withdraws air from the housing causing liquid contaminated articles discharged from a production machine to be drawn into the housing through a flexible suction hose. Liquid contaminated articles entrained within the incoming airstream enter the housing, strike a target plate, and drop onto the perforated plate. Liquid drains from the articles, passes through the perforated plate, accumulates in a sump in the lower portion of the housing and is pumped to a recovery station. An access opening in the housing facilitates removal of the articles from the housing.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: January 3, 1995
    Assignee: The Spencer Turbine Company
    Inventor: James C. Poor
  • Patent number: 5324425
    Abstract: A method and apparatus for removal of solids from aqueous wash solutions such as, but not limited to, solutions used in hot jet-spray parts washers. Coarse solids are removed by a vortex separator during all operations. Solids accumulated in the parts washer storage tank are intermittently removed and fine solids are removed by intermittent depth filtration. In one embodiment of the invention, the method includes the purging of the vortex separator to the primary stage of depth filtration.
    Type: Grant
    Filed: August 26, 1992
    Date of Patent: June 28, 1994
    Inventor: Billy L. Ellison
  • Patent number: 5308483
    Abstract: An in-line filter assembly is provided of a type having a housing divided into inlet and outlet chambers by a filter membrane having its periphery fluid-flow-sealed within the housing, the filter being readily disassemblable so that the filter membrane can be removed for identification or analysis of the material filtered from the fluid during use of the filter.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: May 3, 1994
    Assignee: Gelman Sciences Inc.
    Inventors: Eric Sklar, Tod Borton
  • Patent number: 5292437
    Abstract: A reusable multilayer filter for use with a beverage brewing apparatus. The multilayer filter includes a foraminous support player, a porous mesh layer and a multiplicity of wrinkles formed in the porous mesh layer. The foraminous support layer has a multiplicity of spaced apart holes extending through the layer. The porous mesh layer overlies and is attached to the foraminous support layer. The mesh layer is formed of a woven, etched, or deposited material which has a multiplicity of small openings extending therethrough. The openings in the porous mesh layer are smaller than the holes in the foraminous support layer for selectively retaining material having a dimension larger than the openings. The wrinkles in the porous mesh layer are formed in spaced apart areas which are defined by a perimeter of the holes in the foraminous support layer. The wrinkles increase the effective surface area of the filter.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: March 8, 1994
    Assignee: Bunn-O-Matic Corporation
    Inventor: David F. Ford
  • Patent number: 5290444
    Abstract: A device for securing a coffee filter paper in a grounds container comprising a single thin sheet of thermo-plastic, heat resistant, resilient material having a plurality of fingers spaced symmetrically around the periphery, for placing adjacent a paper filter with its open central core at the center of the filter and in combination therewith wedged into a coffee grounds container with the instant invention exposed.
    Type: Grant
    Filed: May 13, 1993
    Date of Patent: March 1, 1994
    Inventor: Alton Campbell
  • Patent number: 5264184
    Abstract: A device (10) for separating liquid samples has a sample container (12), bottom wall (20) of which has an outlet opening (22) provided therein. The outlet opening (22) is joined by an outlet spout (24) extending in the axial direction of the sample container (12). On bottom wall (20) there is a separation layer (28). Below sample container (12), a collecting container (32) is arranged abutting sample container (12) such that an exchange of air between the interior of the collecting chamber (32) and the environment is possible, yet an escape of liquid is largely inhibited. The contact surface between collecting chamber (32) and sample container (12) and end (26) of the outlet spout (24) through which the liquid is discharged, are axially spaced apart.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: November 23, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James E. Aysta, Metin Colpan
  • Patent number: 5227074
    Abstract: A filter (32) is provided for a medical sterilization container (10) having a port (18,22,24) allowing fluid communication between the interior of container (10) and the surrounding environment. A peripheral frame (44) is adapted to cooperate with the port (18,22,24). A plurality of cross-members (54) span an aperture (48) formed by a frame (44). A filter medium (58) is disposed across the aperture (48) so as to be interposed between the interior of the container and the cross-members (54).
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: July 13, 1993
    Assignee: Monarch Products, Inc.
    Inventors: Robert L. Nichols, William H. Patterson
  • Patent number: 5225076
    Abstract: The "PURIFIED COFFEE AND ICE WATER DISPENSER" replaces the standard kitchen sink taps. The tap water is directed to a flow director at the base of the spout which adjusts to allow the flow to either run trough a water filter or through the spout directly into the sink. When the tap water is directed through the water filter it fills a pre-heated water reservoir depending on the direction the spout is moved, and is drawn by opening the hot water or cold water spout. Coffee is drawn by adjusting a regulator valve which sends the hot water through a coffee filter and out the hot water spout. The reservoirs are cooled and heated elecrically with thermostats.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: July 6, 1993
    Inventor: Peter T. Meredith
  • Patent number: 5225078
    Abstract: A pour-through pitcher filter assembly includes a compact filter element including a thin annular disk of molded activated carbon and a peripheral annular seal element. The seal element allows the filter to be replaceably mounted in the lower end of a plastic reservoir, which reservoir is adapted to be supported in the top of a pitcher for receiving filtered water. The reservoir may be made by a blow molding process and includes an integral bellows member which is manually collapsible to pressurize the interior of the reservoir to initiate gravity flow through an initially dry filter element. The seal element utilizes a synthetic rubber material and is preferably insert molded around the carbon filter disk.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: July 6, 1993
    Assignee: Ametek, Inc. Plymouth Products Division
    Inventors: Ralph A. Polasky, Vue X. Yang
  • Patent number: 5221475
    Abstract: A strainer assembly for straining a liquid, such as paint, to be poured into a container includes a tubular strainer support having a continuous imperforate side wall structure with an open top, an open bottom, and an annular exterior flange for removably resting on the open top of the container for holding the strainer support in an upright position above the container. A filter medium, such as a mesh filtering cloth, is secured to the top of the support for holding it in the interior of the support above the container. Paint is poured through the filtering cloth to filter the paint before it passes into the container. In one embodiment, the strainer support includes an annular ridge recessed in the exterior side wall of the support adjacent the open top of the support to provide a second means for mounting the strainer support in an inverted position over a smaller-sized container.
    Type: Grant
    Filed: August 6, 1991
    Date of Patent: June 22, 1993
    Assignee: Andrew N. Mealey
    Inventors: Andrew N. Mealey, David E. Bailey
  • Patent number: 5190652
    Abstract: A filter holder for coffee cartridges, comprising a cartridge-receiving portion (4) with a closed bottom and a lateral extract passage (9), a by-pass (5) which has its inlet (6) spaced above the cartridge-receiving portion (4) and terminates adjacent the extract passage (9), as well as an upper supporting rim (7) which is so inclined relative to the axis of the closed bottom, that when the filter pan is arranged by the supporting rim (7) thereof on the upper edge of a receptacle for brewed coffee, the outlets of the by-pass (5) and the extract passage (9) are disposed substantially at the lowest point.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: March 2, 1993
    Assignee: Sara Lee/DE N.V.
    Inventors: Bernardus M. van Thoor, Jan C. van Hattem
  • Patent number: 5176830
    Abstract: A filter support fits inside a disposable coffee filter within the filter basket of an automatic drip coffee maker to prevent the side walls of the coffee filter from collapsing while coffee is being brewed. The filter support includes a base frame which rests on the bottom of the coffee filter, and a plurality of retaining members extending upwardly from the base frame for engaging the side walls of the coffee filter. The base frame includes first and second sets of horizontally extending cross members disposed at an angle to one another such that the cross members of each set intersect and join the cross members of the other set. The retaining members extend upwardly from the ends of the cross members and terminate in a free upper end. The cross members may include a downwardly extending portion which forms a leg to support the cross members in vertical spaced relation with respect to the bottom of the coffee filter.
    Type: Grant
    Filed: March 25, 1992
    Date of Patent: January 5, 1993
    Inventor: Lawrence E. Wiggins
  • Patent number: 5171457
    Abstract: This invention solves the problem of disposal of used coffee membrane filters and wet coffee grounds neatly with decreased probabilities of spilling coffee grounds on the floor, table or dumping them loose in a trash container. Thus, several embodiments provide different ways to close and secure the open top of the filter membrane after insertion of coffee grounds into the filter for making coffee, thereby to provide a closed unit that can be disposed of without spilling the beans. Thus, drawstrings or adhesive tabs may be provided in the rim of the filters for closure, or additional flaps or cover sheets may be attached to the rim of the filter to close the open filter mouth.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: December 15, 1992
    Assignee: Pamela A. Acuff
    Inventors: Pamela A. Acuff, Michael N. Krasney
  • Patent number: 5120439
    Abstract: A coffee filter is provided that has tabs for easy removal of filter. There is defined in one side of the filter channels where the tabs are provided. The tabs are arranged and located in the upper portion of the filters, and wherein after the tabs are formed, slotted portions are provided in the filters. Extended tabs may also be used in one form of the filters.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: June 9, 1992
    Inventor: Bill McFarlin
  • Patent number: 5102546
    Abstract: A filter vessel has a beverage outlet and a closing device movable between closed and open positions in which a plug blocks and, respectivley, frees the outlet. The closing device has an operating member pivotally secured to the filter holder for movement toward and away from the outlet; and a leg disposed below the outlet and carrying the plug. The leg has a resilient end portion supported on the operating member, while an opposite end of the leg is pivotally secured to the operating member so that the leg may move relative to the operating member towards and away from the outlet. There is further provided an abutment member disposed on the filter holder and being in engagement with the leg at a location between the plug and the pivotal end of the leg.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: April 7, 1992
    Assignee: Melitta Haushaltsprodukte GmbH & Co. KG
    Inventor: Thomas Salomon
  • Patent number: 5075005
    Abstract: A filter apparatus for producing aromatic extracts of coffee or tea includes a filter vessel having an interior with a pyramid-like shape and a filter paper insert which, in use, is adapted in shape to the interior of the filter vessel. In order to improve the utilization of the aroma carrier, the corners of the filter vessel in the usable interior are beveled or otherwise altered. The filter paper insert is correspondingly provided with creases in its corner regions so as to permit a substantially form-fitting support of the filter paper insert at the beveled corners of the filter vessel.
    Type: Grant
    Filed: January 14, 1991
    Date of Patent: December 24, 1991
    Assignee: Melitta Haushaltsprodukte GmbH & Co. KG
    Inventor: Dieter Brindopke
  • Patent number: 5059325
    Abstract: A filter for hot beverages has a filter body made of bendable sheet material and having a tubular shape and having two vertical fold lines diametrically opposite each other on the tubular shape so as to be collapsible along the vertical fold lines and to define side portions extending between the fold lines, the filter body being provided with a pair of cuts or cutouts across each fold line to form a tongue portion therebetween, the filter body being openable by urging the fold lines toward each other and the tongue portions being bendable inwards to hold the filter in an open oval state, and a bag member made of filter paper and having the top edge along both sides thereof bonded to side portions of the filter body.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: October 22, 1991
    Assignee: Japan I. P. Co., Ltd.
    Inventor: Motoyori Iida
  • Patent number: 5015398
    Abstract: The invention is generally accomplished by providing an apparatus for filtering that comprises a liquid container and a filtering container designed to be placed within the liquid container. The filtering container is provided with filtering areas on the bottom and/or sides that allow liquid to pass through the sides of the filtering container and be filtered. The liquid then may be withdrawn by pumping from the filtering container. In a preferred form of the invention the containers are closely contoured such that the filtering container fits within the liquid container so that there is very little waste when filtered liquid is withdrawn from the filtering container.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: May 14, 1991
    Assignee: Eastman Kodak Company
    Inventor: Paul F. Cocuzzi
  • Patent number: 5009780
    Abstract: A filtration apparatus is provided comprising a multiwell plate wherein each of the wells in the plate has a filter membrane bonded to the entire peripheral surface of an opening of the well. The filter membrane has a tab which permits removing the filter membranes from the wells without rupturing the membrane.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: April 23, 1991
    Assignee: Millipore Corporation
    Inventor: Michael J. Sarrasin
  • Patent number: 5008013
    Abstract: A filter employed for the extraction of beverages is formed of a piece of material having two planar surfaces and a plurality of uniformly distributed openings extending through the piece. A plurality of nipples, equal in number to the number of openings, project from and out of at least one of the planar surfaces and extend for a distance substantially equal to the thickness between the planar surfaces of the piece of material, each nipple being associated with one of the openings through the piece of material, and each opening extends through each nipple. The openings have a shape of a truncated cone, a truncated pyramid, or a truncated tetrahedron, and each opening at the end of each nipple, which is disposed away from the planar surface from which the nipple projects, forms a minor base of the opening shape and each opening at the other planar surface forms a major base of the opening shape.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: April 16, 1991
    Assignee: Nestec S.A.
    Inventors: Eric Favre, Petr Masek, Bernard Truchement
  • Patent number: 4990254
    Abstract: A portable water purifier comprises an outer elongated hollow body having openings formed at the upper and lower portions, a cup adapted to be inserted in the outer elongated hollow body from the lower opening thereof, a filtering elongated hollow body adapted to be inserted in the cup from the upper opening of the outer elongated hollow body, and a cap fitted detachably on the upper portion of the outer elongated hollow body to cover this upper opening. The cup and the filtering elongated hollow body are accommodated in the outer elongated hollow body when the portable water purifier is not used in a portable manner. When this portable water purifier is used, the cup is pulled out from the outer elongated hollow body and is set under the outer elongated hollow body, so that water is poured from the upepr opening of the outer elongated hollow body and is filtered through a filter in the filtering elongated hollow body. The filtered water is stored in the cup.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: February 5, 1991
    Assignee: Japan Oxygen Co., Ltd.
    Inventors: Shoji Toida, Takeshi Kuwana, Kazunori Iwasaki, Tooru Goto
  • Patent number: 4983286
    Abstract: This invention provides a sterilizing water-purifying reagent for removing muddiness of water to be treated or sterilizing the water to be treated as drinking water in fields or under drinking water shortage environment, and the sterilizing water-purifying reagent comprises an acidic additive containing as main ingredients various types of metal salts and nonmetal salts produced by dissolving vermiculite weathered from mica mineral or soil further weathered from the vermiculite in aqueous inorganic acid solution.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: January 8, 1991
    Inventors: Jitsuo Inagaki, Asao Shimanishi, Taisaburo Ono
  • Patent number: 4963256
    Abstract: A sampling device for use with an open necked container capable of holding a fluid material, comprises a hollow support member insertable into the container through the open necked portion thereof. The support member comprises a main body portion of a smaller diameter than the open neck of the container; a first end portion extends from the main body portion and is open to the ambient atmosphere through the open neck portion of the container. In one embodiment, elongated ribbed members extend from the main body portion and define a second end portion. The ribbed members form a generally rigid support structure. A dialysis tubing is fitted over the ribbed members and is closed at one end to define an open ended dialysis sac, the inside of which is directly accessible through the first end portion of the support structure.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: October 16, 1990
    Assignee: Nichols Institute Diagnostics
    Inventor: Jerald C. Nelson
  • Patent number: 4963262
    Abstract: A coffee filter paper retainer which comprises a retaining member adapted to fit within the coffee filter paper in the coffee basket of a conventional automatic drip coffee maker. The retaining member is sized and shaped so that during use the coffee filter paper is sandwiched between the retaining member and the inside of the coffee basket, thereby preventing the coffee filter paper from drooping to the point that the coffee grounds spill out of the coffee filter paper into the coffee pot while the coffee maker is brewing the coffee. The retaining member can be sized and shaped to fit the coffee basket of any particular coffee maker. The coffee filter paper retainer may also further comprise a plurality of legs which extend downwardly from the retaining member.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: October 16, 1990
    Inventor: Edna M. Johnstone
  • Patent number: 4946591
    Abstract: A strainer assembly for straining a liquid such as paint to be poured into the interior of an open top container includes a tubular strainer support having a continuous imperforate side wall structure with an open top, an open bottom, and an annular exterior flange for removably resting on the open top of the container for holding the strainer support in an upright position above the container. A filtering medium secured to the open top of the strainer support includes, in one ebmodiment, a thin, flexible tubular imperforate plastic sheet having an open top which is taped to the upper exterior portion of the strainer support. The flexible plastic sheet extends downwardly for most of the distance into the interior of the strainer support. A flexible mesh filtering cloth secured to the bottom of the tubular plastic sheet extends across a major portion of the projected area of the strainer support interior adjacent the top of the container.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: August 7, 1990
    Inventor: Andrew N. Mealey
  • Patent number: 4895656
    Abstract: A coffee filter for a coffee making apparatus, comprising a funnel or holder (1) for receiving a filter element containing ground coffee, said funnel having at least at its lower end an inclined wall section (2), an outflow opening (4) in said wall (2) for draining coffee brew into a container positioned under said funnel (1), a disc valve (18) for selectively closing said outflow opening (4), said valve (18) being controlled by control means comprising a slide (6) guided in a slit (5) provided in a vertical wall section (3) arranged opposite to said inclined wall section (2), said slide (6) having a grip (6') at the outer side and a cam (7) with an undulated surface (8), at the inner side of said vertical wall section (3), said disc valve (18) being connected to one end (17) of a lever (14), the other lever end (16) being designed as a cam follower cooperating with said undulating cam surface (8), a leaf spring (10) extending transversely across the space between the inclined wall section (2) and the vertica
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: January 23, 1990
    Assignee: Smitdesign B.V.
    Inventor: Gerard C. Smit
  • Patent number: 4867880
    Abstract: A device for brewing a beverage into container, such as a cup, which includes an enclosure adapted to fit over the rim of a receiver such as a cup with a space between the bottom of the device and the receiver and where a reservoir is provided to receive granular or particulate material to be used in the brewing process. A removeable water apertured distributor plate is provided to be located above the reservoir with foot members provided to generally center the apertured plate and to provide an annular space around a part of the plate between the edge of the plate and the chamber defined by the enclosure. A filter is provided in the bottom of the reservoir to prevent loss of the particulate material which is being extracted into the receptical.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: September 19, 1989
    Assignee: D.J. Incorporated
    Inventors: Theos R. Pelle, Bobby H. Allen
  • Patent number: 4865737
    Abstract: A cylinder having both ends opened is structured of loosely woven metal or plastic wire. The cylinder is sized to fit vertically in a coffee maker filter basket inside a disposable coffee filter as a filter support. The filter support prevents the walls of the disposable filter from collapsing over the coffee grounds thus reducing chances of coffee grounds being released into the coffee pot. The rounded cylinder comprising this filter support is sized to fit and function in all shapes of coffee maker filter baskets and in other coffee making filter funnels, round, square, and frusto-conical. The filter support of the immediate invention is reuseable.
    Type: Grant
    Filed: January 3, 1989
    Date of Patent: September 12, 1989
    Inventor: John R. McMichael
  • Patent number: 4860645
    Abstract: A disposable filter cartridge comprising a housing substantially including a bottom and an upright side wall, the underside or bottom having one or more holes, said filter cartridges being provided at its top and at least a part of its bottom with filter material or a filter film. At least the filter material for the top is connected to the side wall or a flange-shaped extension thereof by means of a sealed joint. The filter material destined for the underside or bottom of the housing is cup-shaped and is received in the housing of the filter cartridge so as to be immovable.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: August 29, 1989
    Assignee: Douwe Egberts Koninklijke Tabaksfabriek-Koffiebranderijen-Theehandel
    Inventors: Joost van der Lijn, Bernardus M. van Thoor
  • Patent number: 4783318
    Abstract: An apparatus used to separate solid-phase materials from rinse water containing soluable constituents dissolved from rock or ore bodies by percolation of water therethrough is described. The apparatus includes an upper funnel and a bottom receptacle as well as a central passage member disposed therebetween. The upper funnel includes a perforated bottom and a central standpipe. The bottom receptacle includes a pair of vacuum tubes. The central member includes a plurality of filter members. When in use, filtration through some or all of the filters can be aided by applying a suction to the vacuum tubes.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: November 8, 1988
    Assignee: The State of Minnesota
    Inventor: Kim A. Lapakko
  • Patent number: 4764274
    Abstract: A replaceable water filter unit which can be used with a water pitcher, water bottle, or other such water dispensing device utilizes activated charcoal particles which are sandwiched between a pair of pads which may be fabricated of polyester felt batting material. The pads and charcoal particles sandwiched therebetween are installed in a frusto-conical housing with the pads in tight abutment against the side walls of the housing. The opposite end walls of the housing are apertured and each of the pads is installed directly opposite one of these end wall portions. The housing is removably installed in the outlet portion of the water dispensing device such that the water passes through the pads and the charcoal particles when being dispensed.
    Type: Grant
    Filed: November 19, 1985
    Date of Patent: August 16, 1988
    Inventor: Bernard Miller
  • Patent number: 4728425
    Abstract: There is disclosed filter apparatus for coffee makers wherein the the ground coffee is placed in a filter and hot water passes over the coffee grounds, through the filter and into the coffee pot. The filter apparatus includes a pleated paper filter that is placed in a basket to have the filter peripheral wall portion extend upwardly from the bottom of the basket and a retainer positionable for being surrounded by the filter peripheral wall portion to prevent the filter from collapsing and allowing coffee grounds flowing into the coffee pot with the filtrate.
    Type: Grant
    Filed: September 26, 1986
    Date of Patent: March 1, 1988
    Inventor: Larry G. Sandvig
  • Patent number: 4721624
    Abstract: The invention relates to a cooking utensil, for example a cooking pot, wherein the latter has an ion exchanger and/or absorber and/or adsorber and/or filter and/or other device for the extraction of residues of pesticides, herbicides, synthetic fertilizers, hormones and the like from the products to be cooked and prepared, i.e. from the foodstuffs to be prepared, their preparation liquid and/or their vapors during the cooking process. The said harmful substances are to be extracted in this way from the products to be cooked.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: January 26, 1988
    Assignee: FIBEG Beteiligungesellschaft mbH
    Inventor: Franz W. Schumann
  • Patent number: 4689147
    Abstract: A plastic filter assembly having an upper receiving container and a lower receiving container. Either the top or bottom container is provided with at least two recesses for receiving a locking pin in the container not having recesses. The recess has a first receiving portion and a locking portion. The locking pin has an angled engaging surface inclined with respect to longitudinal axis of the container.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: August 25, 1987
    Assignee: Nalge Company
    Inventors: Richard A. Leoncavallo, Peter K. Baird, Ravinder C. Mehra, Sharad Rajguru
  • Patent number: 4623457
    Abstract: Described is a water purifier comprising a collecting container (1) with pouring spout (2) and handle (3), a funnel and a cover (5) which can close the funnel, wherein provided at the bottom of the funnel is an opening for receiving a filter cartridge containing a purifying agent.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: November 18, 1986
    Inventor: Heinz Hankammer
  • Patent number: 4619766
    Abstract: A nested stack of bowl-like disposable beverage brewing filter sheets. Each filter sheet has two adjacent folds in opposite direction forming a grippable strip for removing discrete sheets from the stack. A container for the nested stack has a removable panel for exposing the grippable strip of the outermost sheet for easy finger gripping and discrete removal of the sheet. The container is slideably receivable in a bracket adapted to hold it as a dispenser. Refillable dispensers are also disclosed.A method for preparing a beverage brewing apparatus for brewing comprises the steps of grasping with fingers of one hand the strip of the outermost filter sheet at a location other than at the edge of the sheet, pulling the filter sheet as a discrete entity from the stack, and lining the brewing basket with the single filter sheet in preparation for brewing.
    Type: Grant
    Filed: September 27, 1985
    Date of Patent: October 28, 1986
    Inventors: Thomas B. Smiley, Christine L. Smiley
  • Patent number: 4560476
    Abstract: A strainer for use in a submergible pump is constructed by a plurality of stoppers arranged on a plate member and each of the stoppers is disposed and extended in the direction of liquid flow passing from the peripheral portion of the plate member towards the central portion of the same or the suctioning opening of the pump. Each of the members is provided with a slanted edge near the center portion, an upright edge near the outer periphery and a tip edge parallel to the plate member and coupling the slanted edge. The upright edge and the height of the tip edge is made shorter in its axial length so that the liquid flow may freely pass between the adjacent stoppers as well as the portion between the tip edge and the pump body.The stoppers or entire strainer may be made of elastic material to give flexibility to the stoppers so as to make the flow passage larger by the deflection thereof to allow smooth backward flow and give facility for cleaning when the pump is de-energized.
    Type: Grant
    Filed: April 25, 1984
    Date of Patent: December 24, 1985
    Assignee: Ebara Corporation
    Inventor: Sinji Nishimori
  • Patent number: 4491520
    Abstract: A filter for a conventional water jug having a valved tap near the bottom of its cylindrical side wall comprises a pan-like case member that seats in the bottom of the jug and has a filter cartridge removably sealed across its open top. An aperture in the axially short cylindrical side wall of the case member communicates its interior with the inwardly projecting tubular tap inlet. A radially projecting tubular collar on the case member cooperates with an O-ring to provide a seal between the interior of the case member and the tap inlet. A tacky, water-insoluble adhesive area on the underside of the bottom wall of the case member secures it to the bottom wall of a jug. The filter cartridge can comprise blow molded shell halves, filter paper discs, and activated charcoal confined between the discs.
    Type: Grant
    Filed: February 22, 1984
    Date of Patent: January 1, 1985
    Inventor: Richard C. Jaye
  • Patent number: 4468321
    Abstract: The filter device is for filtering liquids and has a reservoir member for receiving the liquid to be filtered and a spout member for exit of the liquid after it is filtered, the spout member being assembled to the reservoir member with a filter disc therebetween. Each of these members has an annular ceramic magnet, these ceramic magnets being adjacent each other when the members are assembled whereby the magnetic attraction sealingly clamps the filter disc between the members. In accordance with the invention, the annular ceramic magnet of the reservoir member is completely enclosed within a closed annular cavity in the organic plastic of the reservoir member, the annular magnet being of smaller size than the annular cavity; and the annular ceramic magnet of the spout member is completely enclosed within a closed annular cavity in the organic plastic of the spout member, this annular magnet also being of smaller size than the annular cavity in which it is enclosed.
    Type: Grant
    Filed: February 17, 1983
    Date of Patent: August 28, 1984
    Assignee: Gelman Sciences Inc.
    Inventor: Gerald D. St. John
  • Patent number: 4352737
    Abstract: A strainer for use on a valve body of an automatic transmission includes an enlarged filter area and is located in an oil pan under the valve body. A strainer divides the oil pan into upper and lower chambers and has a central tube connected with a suction port of the valve body. Fluid discharged into the upper chamber of the oil pan flows down to the lower chamber through the enlarged filtering area of the strainer and is sucked into the valve body through the centrally located tube.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: October 5, 1982
    Assignee: Aisin Warner Kabushiki Kaisha
    Inventor: Takuji Taniguchi