Patents Assigned to Multiform Desiccants, Inc.
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Patent number: 5839593Abstract: A container cap having a base portion, a substantially cylindrical portion extending perpendicularly from a perimeter of the base portion to define an inner surface of the container cap, and an uncovered liner disposed directly on the inner surface of the container cap, the liner having an oxygen absorbent dispersed therein. The container cap is adapted to seal an opening in a container and to absorb oxygen within the container. Also disclosed is a method for removing oxygen from a container by dispersing an oxygen absorbent in a liner, attaching the uncovered liner directly to an inner surface of a container cap without a separate adhesive, and placing the cap over an opening in the container such that the liner in the container cap seals the opening and absorbs oxygen within the container.Type: GrantFiled: July 14, 1997Date of Patent: November 24, 1998Assignee: Multiform Desiccants, Inc.Inventor: George E. McKedy
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Patent number: 5746937Abstract: An oxygen absorbing composition having an effective amount of at least one oxygen absorbent contained in an emulsion. An oxygen absorbing product is produced by dispersing an oxygen absorbent in an emulsion to form an oxygen absorbing composition and transferring the oxygen absorbing composition onto a substrate.Type: GrantFiled: June 14, 1996Date of Patent: May 5, 1998Assignee: Multiform Desiccants, Inc.Inventors: George E. McKedy, Ronald C. Idol, Thomas H. Powers
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Patent number: 5641425Abstract: An oxygen absorbing composition having an effective amount of at least one oxygen absorbent contained in an emulsion. An oxygen absorbing product is produced by dispersing an oxygen absorbent in an emulsion to form an oxygen absorbing composition and transferring the oxygen absorbing composition onto a substrate.Type: GrantFiled: September 8, 1994Date of Patent: June 24, 1997Assignee: Multiform Desiccants, Inc.Inventors: George E. McKedy, Ronald C. Idol, Thomas H. Powers
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Patent number: 5503662Abstract: A canister including an elongated hollow plastic body having a wall with inner and outer surfaces, an edge portion on the wall defining an open end, an end on the edge portion extending transversely to the inner and outer surfaces, a porous plastic member having an outer edge portion extending across the open end and fused to the end, an inner portion on the porous plastic member located radially inwardly of the outer edge portion and extending into the body and fused to the inner surface of the wall adjacent the end thereof, and a gas-treating material in the body. A method of fabricating the above canister including the steps of applying pressure and vibratory welding energy to the porous member to thereby cause the member which was originally planar in shape to have its outer edge compressed against the end of the body and fused thereto and the central portion inwardly of the outer edge forced into the body and its outer edge fused to the inner surface of the body adjacent the end.Type: GrantFiled: March 29, 1994Date of Patent: April 2, 1996Assignee: Multiform Desiccants, Inc.Inventor: Lora L. Berger
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Patent number: 5443626Abstract: A fluid-collecting device for collecting fluid from a fuel tank having an opening leading to the inside thereof including an elongated bag which is of a size which can pass through the opening, desiccant material in the bag, an elongated cord sewn to the top of the bag, and a disc to which the outer end of the cord is attached, the disc being of a larger size than the opening so that it cannot enter the opening, to thereby provide access to the outer end of the cord which can be grasped to withdraw the bag of desiccant material from the tank.Type: GrantFiled: September 28, 1994Date of Patent: August 22, 1995Assignee: Multiform Desiccants, Inc.Inventor: M. Reza Kiyani
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Patent number: 5332590Abstract: An oxygen-absorbing composition containing particulate annealed electrolytically reduced iron of between about 100 mesh and 325 mesh in an amount of about up to 99.6% by weight, a salt such as sodium chloride in an amount by weight of about up to 3.5%, and optionally a water-attracting and supplying component such as silica gel of a mesh size of between about 30 mesh and 325 mesh in an amount by weight of up to about 80%. A packet for absorbing oxygen including a stain and grease resistant envelope containing the oxygen-absorbing composition. A grease and stain resistant laminate consisting of plies of various plastics and grease and stain resisting paper.Type: GrantFiled: July 26, 1993Date of Patent: July 26, 1994Assignee: Multiform Desiccants, Inc.Inventor: George E. McKedy
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Patent number: 5322701Abstract: An absorbent packet for absorbing carbon dioxide at a rapid rate from a closed container, such as a package or can containing coffee and water vapor, including a porous envelope containing calcium oxide and a hydrating agent, such as silica gel with water adsorbed therein. The water vapor from the container permeates the envelope at a relatively rapid rate because of the affinity of silica gel for the water vapor in the container, and the silica gel becomes supersaturated and gives off water. The carbon dioxide from the environment also permeates the envelope because of its concentration outside of the envelope and because of the pressure gradient between the outside and inside of the envelope. The water given off by the supersaturated silica gel combines with the calcium oxide in the envelope to form calcium hydroxide. The carbon dioxide and the calcium hydroxide react to produce calcium carbonate and water.Type: GrantFiled: January 14, 1993Date of Patent: June 21, 1994Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, Nicholas E. Vaylen
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Patent number: 5262375Abstract: An oxygen-absorbing composition containing particulate annealed electrolytically reduced iron of between about 100 mesh and 325 mesh in an amount of about up to 99.6% by weight, a salt such as sodium chloride in an amount by weight of about up to 3.5%, and optionally a water-attracting and supplying component such as silica gel of a mesh size of between about 30 mesh and 325 mesh in an amount by weight of up to about 80%. A packet for absorbing oxygen including a stain and grease resistant envelope containing the oxygen-absorbing composition. A grease and stain resistant laminate consisting of plies of various plastics and grease and stain resisting paper.Type: GrantFiled: May 26, 1992Date of Patent: November 16, 1993Assignee: Multiform Desiccants, Inc.Inventor: George E. McKedy
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Patent number: 5207943Abstract: An oxygen-absorbing composition for absorbing oxygen from an enclosure, such as a package, containing a low-moisture product having an equilibrium relative humidity, or water activity, of between 30% and 90% including in relatively sufficient proportions for absorbing oxygen in the container, particles of iron, particles of a solid electrolyte material, and particles of hydrogel.Type: GrantFiled: January 7, 1991Date of Patent: May 4, 1993Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, George E. McKedy, Christopher S. Nigon, Thomas H. Powers
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Patent number: 5191721Abstract: A microwave-regenerable desiccant cartridge including a casing of transparent plastic, indicating desiccant within the casing, a bottom wall and a top wall in the casing, apertures in the bottom and top walls of the casing of a smaller size than the desiccant within the casing, and outwardly extending legs on both the top wall and the bottom wall to space the apertures in the bottom and top walls from a supporting surface of a microwave oven on which they are placed in facing relationship.Type: GrantFiled: September 30, 1991Date of Patent: March 9, 1993Assignee: Multiform Desiccants, Inc.Inventors: Samuel A. Incorvia, Joseph L. Iwaniszek
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Patent number: 5148613Abstract: A closet drier including a container having an upper portion and a lower portion divided by a normally stretched elastic diaphragm having perforations therein and retaining deliquescent material in the upper portion of the container, a membrane at the top of the container for permitting only water-vapor, but not liquid water, to pass therethrough into the deliquescent material which forms a solution with the deliquescent material which passes through the perforations into the lower portion of the container, the elastic diaphragm contracting as the deliquescent material is consumed so that the space previously occupied by the deliquescent material can be occupied by the resulting solution, and the perforations in the elastic diaphragm also contracting as the elastic diaphragm contracts to reduce the ability of liquid from underneath the diaphragm in the container from passing therethrough.Type: GrantFiled: September 30, 1991Date of Patent: September 22, 1992Assignee: Multiform Desiccants, Inc.Inventor: John S. Cullen
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Patent number: 5148337Abstract: A combined controlled rate adsorbent and disc drive stabilizing unit in the shape of a computer disc including an adsorbent of planar shape, a casing of porous material having a predetermined water vapor transmission rate encasing the adsorbent for prolonging the water vapor adsorption time of the adsorbent, and a self-sustaining jacket on the casing of a shape for installation into a computer disc drive during transit.Type: GrantFiled: September 20, 1990Date of Patent: September 15, 1992Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, Samuel A. Incorvia, Christopher S. Nigon
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Patent number: 5119616Abstract: An adsorbent packet including a casing of permeable material, adsorbent in the casing, and a sleeve of metal foil fused to a central portion of the casing by ultrasonic welding and having a layer of nylon on the outside thereof.Type: GrantFiled: April 22, 1991Date of Patent: June 9, 1992Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, Samuel A. Incorvia
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Patent number: 5092914Abstract: A floatable oxygen-absorbing cartridge for placement into a container of liquid having an air space above the liquid level including a casing, a weighted base on the casing for causing the cartridge to float in an upright position with its upper portion above the level of the liquid, an oxygen-absorbing composition within the casing, and a permeable membrane on the upper portion of the casing exposed to the air space for permitting oxygen to pass therethrough to be absorbed by the oxygen-absorbing composition while preventing the passage of the liquid into the casing.Type: GrantFiled: June 7, 1990Date of Patent: March 3, 1992Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, Samuel A. Incorvia
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Patent number: 5069694Abstract: A packet for effecting a compound treatment of gaseous material by desiccation and/or absorption and/or adsorption including a permeable envelope of carbon-loaded sheet material for effecting a first treatment of gaseous material which comes into contact with it, and bulk material in the envelope for effecting a second treatment of the gaseous material which enters the envelope. An envelope fabricated of carbon-loaded paper for receiving a foreign body and adsorbing gases which may deleteriously affect it.Type: GrantFiled: July 2, 1990Date of Patent: December 3, 1991Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, Samuel A. Incorvia
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Patent number: 5036972Abstract: An adsorbent packet including a casing of permeable material, adsorbent in the casing, and a sleeve of metal foil fused to a central portion of the casing by ultrasonic welding and having a layer of nylon on the outside thereof.Type: GrantFiled: April 25, 1990Date of Patent: August 6, 1991Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, Samuel A. Incorvia
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Patent number: 5009308Abstract: A controlled rate adsorbent unit including an adsorbent and a heat-shrunk casing of porous material having a predetermined water vapor transmission rate encasing the adsorbent for prolonging the water vapor adsorption time of the adsorbent. The controlled rate adsorbent unit may be in the shape of a recording disc or it may be in the shape of a three-dimensional solid with the heat-shrunk casing stretched tightly thereover. A method of fabricating a controlled rate adsorbent unit including the steps of providing an adsorbent material, heating the adsorbent material to dry off moisture therefrom, providing a porous material having a controlled water vapor transmission rate, sealing the adsorbent material in a casing of the porous material, heat-shrinking the porous material about the adsorbent, and storing the sealed adsorbent material in a moisture barrier package.Type: GrantFiled: August 9, 1989Date of Patent: April 23, 1991Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, Samuel A. Incorvia, Christopher S. Nigon, Nicholas E. Vaylen
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Patent number: 5005763Abstract: A container for material such as desiccant, adsorbent, absorbent or the like, including a molded shell made of high density polyethylene having a cylindrical side wall and an end wall and an open end, and a permeable membrane closing the open end by extending over onto the edge of the side wall and being deformed therewith and fused thereto into a frustoconical shape. A method of attaching a membrane across an opening of an annular deformable wall including the steps of placing a disc across the opening with the disc extending outwardly beyond the wall, and deforming the outer edge of the disc and the wall simultaneously by applying heat and pressure thereto to fuse the outer edge of the disc onto the wall. A container having a shell of the above-described type wherein the permeable membrane is secured to the end of the cylindrical side wall, and the overhanging portion of the membrane is sealed to the adjacent edge of the side wall which is deformed into a frustoconical shape.Type: GrantFiled: June 14, 1989Date of Patent: April 9, 1991Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, Samuel A. Incorvia, Christopher S. Nigon, Frederick A. Boczkowski
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Patent number: 4994185Abstract: A combined heat shielding and bonding device for shielding an adsorbent packet from heat experienced during fabrication of a refrigerant receiver housing in which the packet is located and for bonding the adsorbent packet to conduits within the receiver including a planar flexible metal sleeve surrounding the adsorbent packet and conduits in the vicinity where the housing is to be welded to thereby conduct heat away from the packet during the welding process, and a film of heat-meltable plastic on the inside surface of the sleeve facing the adsorbent packet and the conduits for being melted by heat experienced during the welding process and thus effecting adhesion between the sleeve and the adsorbent packet and the conduits to thereby retain the packet in fixed relationship to the conduits.Type: GrantFiled: March 23, 1989Date of Patent: February 19, 1991Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, Samuel A. Incorvia
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Patent number: 4992410Abstract: An oxygen-absorbing composition which will not absorb appreciable amounts of oxygen from the atmosphere during formulation and handling including a mixture of an oxygen-attracting component A, an aqueous electrolyte-impregnated component B, and a water-attracting component C which has a greater affinity for water from the electrolyte-impregnated component B than the oxygen-attracting component A and a greater affinity for water vapor from the atmosphere than the oxygen-attracting component so that the aqueous electrolyte from component B cannot appreciably react with the oxygen-attracting component A to absorb oxygen from the atmosphere during the time that water-attracting component C attracts water from component B and attracts water vapor from the atmosphere. A packet with a window therein for viewing the composition to determine whether, by change of color, it has absorbed oxygen.Type: GrantFiled: February 17, 1989Date of Patent: February 12, 1991Assignee: Multiform Desiccants, Inc.Inventors: John S. Cullen, Nicholas E. Vaylen