Material For Absorbing Moisture From Waste Product Patents (Class 119/171)
  • Patent number: 5641482
    Abstract: A deodorizing material for breeding or keeping animals and a process for producing the same are described. The material comprises a formed article of a pulp and/or polyolefin base material, wherein said formed article has a cation exchange group. The material is produced by graft polymerization of a reactive monomer having a cation exchange group to a formed article of a pulp and/or polyolefin base material. The material efficiently adsorbs bad smells of animals' excretions through chemical bonding.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: June 24, 1997
    Inventor: Tetsuko Sugo
  • Patent number: 5622697
    Abstract: A method for treating poultry litter which inhibits ammonia volatilization and reduces soluble phophorus levels in the litter. The method comprises the addition of alum to litter in an amount sufficient to maintain the litter pH at values low enough to inhibit ammonia volatilization. The addition of alum, iron or calcium compounds to litter also effectively precipitates soluble phosphorus in litter, thereby reducing the amount of soluble phosphorus runoff from fields receiving litter.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: April 22, 1997
    Assignee: The Board of Trustees of the University of Arkansas
    Inventor: Philip A. Moore, Jr.
  • Patent number: 5614458
    Abstract: A method for conditioning sludge is disclosed which includes adding a treatment material to the sludge, the treatment material including pieces of cellulose with a hydrophobic agent applied thereto. A method for conditioning sludge is disclosed which includes adding a treatment material to the sludge, and the treatment material including pieces of cellulose with wax applied thereto, the pieces of cellulose ranging in size between one-eighth inch and seven-sixteenths inch in a largest dimension and having about 0.5% to about 3% wax by weight, and at least ninety percent of surface area of the pieces of cellulose covered with wax.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: March 25, 1997
    Assignee: Ecosorb International, Inc.
    Inventors: John L. Webb, W. William Coe, Robert D. Kilgore, Shitalprasad N. Patil
  • Patent number: 5605114
    Abstract: An absorbent material based on dried vegetable pulp, in which the dried vegetable pulp results from the extraction of a vegetable material with water and constitutes at least 50% of the material. The absorbent material is useful for treating organic waste, and is in particular proposed as pet litter material.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: February 25, 1997
    Assignee: Cooperatie Cosun U.A.
    Inventors: Willem Peltenburg, Bastiaan Walraven, Diederick Meyer, Harald Teeuwen
  • Patent number: 5566642
    Abstract: Granular absorbent material for a pet animal, each grain thereof comprising a core formed from absorbent material, a liquid-impermeable partition sheet parting the core into upper and lower halves and a liquid-permeable sheet covering the core.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: October 22, 1996
    Assignee: Uni-Charm Corporation
    Inventor: Kengo Ochi
  • Patent number: 5542374
    Abstract: An absorbent material useful as an animal litter contains generally a wood product and clay particles. Specifically, the wood product in the preferred embodiment is wood particles from Western Red Cedar trees, which are nontoxic and nonaromatic. The clay particles are crystalline clay particles comprising calcium montmorillonite, sodium bentonite, attapulgite, and calcium bentonite. The material has the properties of being nontoxic, nonallergenic, nonaromatic, natural, and deodorant. The material further has the properties of enhancing clumping and coating solid material.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: August 6, 1996
    Assignee: MFM Industries, Inc.
    Inventor: Whitfield M. Palmer, Jr.
  • Patent number: 5526770
    Abstract: A dustless cat litter including a wetting additive to agglomerate dust to litter ingredients and promote hydration. Exemplary wetting additives are water soluble, anionic, nonionic, amphoteric or synthetic surfactants, surfactant mixtures, soaps or synthetic detergents which are applied to the litter ingredients to bind dust and fines contained in the mixtures. A masking fragrance, neutralizer or attractant may be admixed with the surfactant. Exemplary hydrating cat litter or additive mixtures, which solidify upon contact with liquids to encapsulate pet waste matter, include a granulated base material (e.g. whole or coarse ground agricultural grains, pulse crops, clay granules or mixtures thereof), a gluten containing material (e.g. semolina or ground wheat) and may include sodium bicarbonate and/or a carrier bound fragrance. A quantity of surfactant on the order of 1/2 to 7 oz. per 10 pounds litter containing 5% to 10% fines is applied to the ingredients during blending of the mixture.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: June 18, 1996
    Inventor: Theodore M. Kiebke
  • Patent number: 5526771
    Abstract: An animal excrement treatment material comprising granulated materials mainly containing residues after extract liquid has been extracted from roasted coffee beans, wherein the granulated materials are formed into grains having a grain diameter of 0.1 mm or greater, and wherein at least the surface of the granulated materials are pigmented by pigmenting substances so that the granulated materials are pigmented in a color other than the original color of the residues from extracted coffee beans. This animal excrement treatment material has good absorbency and water retention of urine discharged from animals and makes it possible to mass excrements by wrapping the same so as to facilitate removal or burning of the excrements.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: June 18, 1996
    Assignee: Kabushikikaisha Daiki
    Inventor: Hiroshi Ito
  • Patent number: 5489427
    Abstract: The method of making a macroemulsion composition for controlling odors and including droplets of water-immiscible, odor counteracting material dispersed as the discontinuous phase of the macroemulsion in a water soluble binder, which constitutes the continuous phase of the macroemulsion. Upon deposition of the composition onto an appropriate substrate, such as pet litter, and after evaporation of the water within the binder solution, the water soluble binder solidifies on the substrate. In so doing, the solidified water soluble binder substantially encloses the droplets of the odor counteracting material. The water soluble binder easily dissolves upon contact with water in pet excreta, thereby releasing the odor counteracting material in an amount appropriate to counteract the offensive odors at the offensive area where such counteraction is needed most.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: February 6, 1996
    Inventor: James M. Bilbrey
  • Patent number: 5468450
    Abstract: The invention provides a vehicle for colorimetric assay which expands upon contact with biological fluids. This expansion allows easy visualization of color changes associated with colorimetric assays, particularly when the vehicle is distributed as particles within animal litters.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: November 21, 1995
    Inventor: Richard D. Michael
  • Patent number: 5448967
    Abstract: A grain cereal having a high level enzyme content is mixed with a bran having a high level incubating enzyme content to produce, when mixed with the grain cereal, synergistic, non-pathogenic enzymes that are capable of causing vigorous breeding of enzymes that starve out harmful bacteria in horse manure and urine and also accelerates decomposition of albumin to suppress and eliminate unpleasant odor. Also in the product and process, kelp is added for increasing the vigorous breeding of the enzyme and also a finely reduced germinated cereal of high level enzyme content is added to further increase the breeding of the enzymes. The product and process include a powdered ingredient of diatomaceous earth which serves as an insecticide, a desiccant, and extends the shelf life of the product.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: September 12, 1995
    Inventor: Bernard E. Ryan
  • Patent number: 5429741
    Abstract: Methods are described for treating sludge, e.g. biological and/or chemical sludge, with processed cellulose material combined with another material, e.g. a surface active agent, a detergent, a surfactant, a polymer and/or an organic polymer.Cellulose flakes and methods for making them are disclosed; in one aspect the flakes are useful as animal litter or bedding; in one aspect such used flakes are re-pelletized for use as litter, food or fertilizer. Methods for absorbing, removing, and for cleaning up a first liquid floating on or in a second liquid are disclosed, the method employing absorbent pellets which, in preferred embodiments, have a particular size, density, and configuration. A pellet and a method for making the pellet are disclosed for cleaning up a first liquid floating on or in a second liquid; and a method for making pellets for absorbing a combustible material to produce fuel pellets. A method for producing fuel pellets is disclosed.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: July 4, 1995
    Assignee: Ecosorb International, Inc.
    Inventors: John L. Webb, W. William Coe, Robert D. Kilgore, Shitalprasad N. Patil
  • Patent number: 5429073
    Abstract: A degradable, reusable, partially synthetic and partially non-synthetic bedding material for animals includes a plurality of flexible monofilaments formed from a blend of a thermoplastic polymer and starch. An effective amount of at least one transition metal salt may also be added to enhance ultraviolet and/or thermal degradation. The partially synthetic animal bedding has an appearance, texture and sound very similar to that of natural straw, but can be cleaned and reused repeatedly. The partially synthetic straw-like material is inert as far as digestibility and is degradable when exposed to sunlight and dry heat, and is biodegradable and compostable thereby providing for relatively easy disposal.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: July 4, 1995
    Assignee: Shakespeare Company
    Inventor: Larry Ballard
  • Patent number: 5415131
    Abstract: An improved animal litter preparation is provided for attracting a household domesticated animal and for absorbing liquids and liquid-containing waste released by the attracted animal. The litter preparation comprises a plurality of preformed and nontoxic liquid absorbing masses of solid matter each comprised of an absorbent substance, at least one releaser pheromone compound which is a biological attractant for the animal, and at least one blending agent.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: May 16, 1995
    Assignee: Trustees of Tufts College
    Inventor: Nicholas H. Dodman
  • Patent number: 5386803
    Abstract: A composition and method of absorbing animal dross. Discrete particles of a composition comprising a combination of bentonite clays, particularly about 1% to about 50% by weight sodium bentonite, and about 50% to abut 99% by weight Fuller's Earth, or calcium bentonite, absorbs animal dross and related liquids, and simultaneously agglomerate into a sufficiently large and stable mass when contacted with the animal dross, and, unexpectedly, the agglomerates readily disperse in water so that the agglomerates can be disposed of in water, such as by being flushed down a toilet, or disposed of through other household plumbing lines without clogging the plumbing lines. The agglomerates can be physically separated and removed from unwetted particles of the composition. Removing the wetted and agglomerated composition particles from the remaining unwetted composition reduces or eliminates offensive odors produced by dross-soaked particles.
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: February 7, 1995
    Assignee: American Colloid Company
    Inventor: John Hughes
  • Patent number: 5361719
    Abstract: A hydrating cat litter which solidifies upon contact with liquids to encapsulate pet waste matter. The litter comprises a mixture of a granulated, organic base material, which is susceptible to decomposition, a gluten containing material, such as ground wheat, and may include a fragrance carrier. In a preferred mixture, the base comprises a quantity of coarse ground agricultural grains, pulse crops or agricultural by-products or mixtures thereof, which support in suspension a quantity of semolina.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: November 8, 1994
    Inventor: Theodore M. Kiebke
  • Patent number: 5347950
    Abstract: There is disclosed an animal litter composition and a package for the composition. The composition constitutes decorticated flax straw which as been screened to particle sizes between about 10 and 22 U.S. Screen Mesh. The litter further includes a virucidal composition and a fragrance. The virucidal composition includes from about 0.05 to about 5 percent by weight based on the dry weight of the decorticated flax straw of a preferably anionic surfactant, and at least about 2 percent, based on the dry weight of the decorticated flax straw of at least one acid selected from a group consisting of citric, malic, and mixtures of the acids.The animal litter package constitutes a bag formed from a web of film, nonwoven/film laminates, film/paper laminate or wax/paper laminate in which the animal litter is contained prior to use. The bag can then be opened to serve as a litter box liner. Once the litter has been used, the edges of the bag can be regathered to form a bag for disposal of the litter.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: September 20, 1994
    Assignee: Kimberly-Clark Corporation
    Inventors: Loyd G. Kasbo, deceased, James D. Cotton, Michael T. Morman, Gabriel H. Adam
  • Patent number: 5329880
    Abstract: The invention provides a waterproof litter receptacle for use in disposal of animal waste products. The litter receptacle contains a mixture of non-smectitic, hydrophilic shale aggregate. The mixture of non-smectitic hydrophilic shale has a fraction of coarse material with a size less than about 5 mesh (4000 microns). The mixture has the property of agglomerating into a clump upon contact with urine. The agglomerated clump of shale and urine is removable with a perforated scoop. A substantially dust-free distribution of shale of greater than 50 mesh (300 microns) is capable of clumping without additives. Optionally, the shale may contain up to 10 weight percent clumping agent selected from the group of water absorbent polymers, corn starch, gelatin, gluten and dried plants of the Plantago family. In addition 5 to 25 wt % ammonia absorbing zeolite may be added for odor control.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: July 19, 1994
    Assignee: Western Aggregates Inc.
    Inventors: Maurice G. Pattengill, Jerry D. Glynn, Martin A. Jones
  • Patent number: 5320066
    Abstract: A mattress or bed for pets is stuffed with material treated with white cedar oil. Preferably the stuffing comprises cedar shavings and conveniently a washable, removable outer cover is provided over an inner mattress. The cedar oil is environmentally safe, reduces pet odor and acts as an insect and pest repellent.
    Type: Grant
    Filed: December 8, 1992
    Date of Patent: June 14, 1994
    Inventor: Lori E. Gunter
  • Patent number: 5317990
    Abstract: A composition and method of absorbing animal dross. In one embodiment, the composition comprises discrete particles (about 50 microns to about 3350 microns, preferably about 600 microns to about 3350 microns in size) of a non-compacted water-swellable bentonite clay that effectively absorbs animal dross and simultaneously agglomerates into a sufficiently large and stable mass, thereby permitting physical separation of the soiled and wetted water-swellable bentonite clay particles from discrete particles of the unsoiled and unwetted water-swellable bentonite clay even after partial drying of about 1 to about 24 hours at room temperature, without substantial sticking to animal paws and fur.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: June 7, 1994
    Assignee: American Colloid Company
    Inventor: John Hughes
  • Patent number: 5290547
    Abstract: A macroemulsion composition for controlling odors and including droplets of water-immiscible, odor counteracting material dispersed as the discontinuous phase of the macroemulsion in a water soluble binder, which constitutes the continuous phase of the macroemulsion. Upon deposition of the composition onto an appropriate substrate, such as pet litter, and after evaporation of the water within the binder solution, the water soluble binder solidifies on the substrate. In so doing, the solidified water soluble binder substantially encloses the droplets of the odor counteracting material. The water soluble binder easily dissolves upon contact with water in pet excreta, thereby releasing the odor counteracting material in an amount appropriate to counteract the offensive odors at the offensive area where such counteraction is needed most.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: March 1, 1994
    Assignee: Ronald T. Dodge Co.
    Inventor: James M. Bilbrey
  • Patent number: 5279259
    Abstract: Clumping animal litter compositions comprising particulate attapulgite clay having a moisture content in the range of from about 10 to 23 percent free moisture and a particle size distribution of from about 8 to about 40 mesh, preferably about 10 to 30 mesh. Method of production includes selection of an attapulgite clay having an API yield value of at least 80 barrels per ton and, preferably, kneading and extruding the clay, milling and heating the clay to a temperature not exceeding about 250.degree. F. to reduce the moisture content to about 10 to 23 percent, and screening the product to a mesh size of about 8 to 40 mesh.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: January 18, 1994
    Assignee: Floridin Company
    Inventors: David W. Rice, Walter E. Howell, Eric K. Yildirim
  • Patent number: 5271355
    Abstract: An absorbent material includes a mixture of poplar wood and peat in the volume ratio range 1:0.01 to 1:100, the material being formed to be dispensable for absorbing liquids and other substances. Cedar may also be included in the material. The material is produced by grinding poplar chips into a sawdust-like poplar material, drying the poplar material to remove moisture therefrom and mixing the poplar material with a quantity of peat to form the absorbent material. The resulting material is then pelletized to form pellets of the absorbent material whereby the material may be more easily dispensed.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: December 21, 1993
    Inventor: Lanny D. Bilings
  • Patent number: 5267531
    Abstract: A litter composition is disclosed and includes a particulate liquid absorbent material and a particulate odor control agent that is dry blended with the absorbent material. The odor control agent comprises a mixture of a fragrance oil that has been spray dried onto a starch carrier and a sodium bisulfite complex having volatile fragrance components. The odor control agent is present in an amount ranging between 0.025% to 0.1% by weight of the total litter composition.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: December 7, 1993
    Assignee: Golden Cat Corporation (GCC)
    Inventors: Norman J. Appel, Art D. Cotton, Raymond J. Heinz, John S. Josephitis, Vern R. Murawski, Gerald L. Neuser, Marvin L. Raymond, Phillip B. Greene
  • Patent number: 5267532
    Abstract: A pH-indicating material capable of undergoing a clearly visually detectable color transition at a desired pH, e.g., at a pH at or below about 5.6 and/or at a pH at or above about 7.6. When the pH-indicating material is wetted on its surface with liquid animal dross, particularly animal urine, such as cat urine, the pH-indicating material will undergo a clearly visible color transition at a urine-problematic pH, e.g., acidic or alkaline. The pH-indicating material is maintained on an inert carrier, separate from the cat litter material itself, so that the cat litter material does not chemically interfere with the urine pH-induced color transition provided by the dye(s) in the coating material, and so that the color transition is an exclusive result of the pH of the contacting animal urine, without pH interference from the litter material.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: December 7, 1993
    Assignees: Anitox Corporation, American Colloid Company
    Inventors: Lanny U. Franklin, Mary E. Sachs
  • Patent number: 5230305
    Abstract: An improvement in the use of clumping, scoopable litter to sorb and remove the urine deposited in litter receptacles by utilizing as the litter a natural product which has been modified to render it cohesive when wetted with urine. The modified natural product has excellent cohesion, is biodegradable, and is completely non-dusting. The modified natural product is a farinaceous material having a bulk density in the range from about 500 kg/m.sup.3 to about 900 kg/m.sup.3, a reducing sugar content from about 0.5% to about 4.0%, and a cold water solubles content from about 40% to about 90%. The preferred particle size of the modified natural product is such that at least 75% of the particles thereof are from about 250 microns to about 2000 microns.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: July 27, 1993
    Assignee: Venture Innovations, Inc.
    Inventor: Roy F. House
  • Patent number: 5229348
    Abstract: Peanut hulls are processed into dust free granules suitable for use as chemical carriers and moisture absorbent materials, including cat litter, by being pulverized to a powder. Deodorizer, scent and mold inhibitor powders are added to the peanut hulls powder. The powders are compacted into compacted masses which are then crumbled into granules. The powder is then compacted into compact masses that are divided into granules and screened.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: July 20, 1993
    Assignee: Bio-Plus, Inc.
    Inventor: Stephen L. Ivie
  • Patent number: 5216980
    Abstract: A hydrating additive and improved cat litter including same which solidifies upon contact with liquids to encapsulate pet waste matter. The litter comprises a mixture of granulated clay particles, finely ground wheat based particulates and a fragrance carrier. In a preferred mixture, quantities of semolina are included with a moisture released masking fragrance consisting substantially of an attractant oil which is impregnated into ground, corn cob.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: June 8, 1993
    Inventor: Theodore M. Kiebke
  • Patent number: 5215041
    Abstract: The invention relates to a novel method for the manufacture of animal litter using filler materials and additional materials that react with liquid. These filler materials are obtained from a fraction of domestic, industrial and other similar waste and/or paper slurry. The fraction obtained from the waste is pulverized and mixed with the additional materials, the mixture is adjusted to a specific moisture content, subsequently granulated, and the resulting granules with a predetermined particle size are separated.The animal litter manufactured according to the invention ensures a high degree of odor retention, has high absorbing power and a low apparent density.
    Type: Grant
    Filed: October 10, 1991
    Date of Patent: June 1, 1993
    Assignee: Organ-Faser Technology Company N.V.
    Inventor: Mirjam Krahenbuhl
  • Patent number: 5209185
    Abstract: An artificial litter for pets is prepared by kneading grains of tapioca and corn obtained from refined tapioca powder and corn in a humidified grain cracking machine, or expander. The kneaded tapioca and corn is then expelled under pressure through a nozzle and allowed to expand under reduced pressure and then cut to form tapioca-corn pellets. The pellets are subsequently coated or filled with zeolite powder and/or powdered additives.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: May 11, 1993
    Inventor: Osamu Chikazawa
  • Patent number: 5207830
    Abstract: Disclosed is a process of manufacturing a lightweight particulate cementitious composition particularly adapted to the sorption of liquids comprising adding to a foamed cement slurry a particle forming agent, and aging the treated foamed slurry for a period of time sufficient for the particles to form and harden for subsequent handling. The bulk density, particle size distribution, and concentration of the agent are selected such that the cementitious composition has the desired density and such that at least 65% of the particles obtained after aging have the desired particle size.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: May 4, 1993
    Assignee: Venture Innovations, Inc.
    Inventors: Jack C. Cowan, Roy F. House, Andree' H. Harrington
  • Patent number: 5189987
    Abstract: The invention provides a liquid composition for deodorizing animal wastes by contact therewith. The composition comprises an aqueous dispersion which contains an ammonia-controlling-effective amount of pine oil and a dispersion aid. The dispersion aid is selected from anionic, nonionic, cationic, amphoteric surfactants, and mixtures of these surfactants.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: March 2, 1993
    Assignee: The Clorox Company
    Inventors: Anna G. Stanislowski, J. Bruce England
  • Patent number: 5184574
    Abstract: A cat litter box includes a tray on which the litter is deposited with the tray being inset within a base having inwardly converging bottom walls defining a sump for the collection of liquid waste. A valve is carried by the bottom walls and has a control rod extending outwardly through a base skirt to receive a handle. The litter is of a nonabsorbent type having a smooth exterior surface to facilitate cleaning. The base supports the tray both for cleaning when in place on the rim of a toilet bowl and when on a floor surface.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: February 9, 1993
    Inventors: Robert C. Kirk, Stacey R. Kirk
  • Patent number: 5183655
    Abstract: The invention provides, in one embodiment, an odor controlling animal litter comprising:a) adsorbent or absorbent particles; andb) an ammonia-controlling-effective amount of i) pine oil and ii) boric acid applied onto the particles. The litter can also include further adjuncts, such as fragrances, other antimicrobial additives, and the like.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: February 2, 1993
    Assignee: The Clorox Company
    Inventors: Anna G. Stanislowski, J. Bruce England, Steven D. Ratcliff
  • Patent number: 5176107
    Abstract: A particulate material having liquid-responsive, adhesive material mixed with sorbent material in particulate form to be wet. After being wet, the adhesive material dries and causes particles that have been wet to adhere together in clumps that can easily be separated from the particles that have not been wet.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: January 5, 1993
    Inventor: Jeffrey J. Buschur
  • Patent number: 5177036
    Abstract: A porous granular ceramic material has a granule size of from 1 to 5 mm, a bulk density of from 200 to 700 g/l, preferably 350 to 550 g/l, a porosity of from 50 to 80% v/v, preferably from 65 to 80% v/v, and a liquid absorbency of from 20 to 200%, preferably from 40 to 150%, of water based on the weight of the granular material. The material may be made by calcining a mixture of a clay and a particulate combustible material. The material is suitable for use as animal litter or as an industrial absorbent for liquids.
    Type: Grant
    Filed: February 20, 1991
    Date of Patent: January 5, 1993
    Inventors: Franz D. Kunst, Arthur F. Payne, Paul A. Wilkinson
  • Patent number: 5176879
    Abstract: Animal litters having deodorizing properties are made from particulate moisture absorbent material and aluminum salts.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: January 5, 1993
    Assignee: Rhone-Poulenc, Inc.
    Inventors: Michael P. White, Anne D. Woodbury
  • Patent number: 5172652
    Abstract: A vessel for containing pet waste and litter material is formed of recycled paper for absorbing liquids and preventing odor. The vessel preferably has essentially vertical side members, having upper edges, and an essentially horizontal bottom member, interconnected in a sealing relationship. The upper edges of the side members preferably tilt out from the interior of the vessel. A horizontal lip preferably projects from the upper edges of the side members, outside the vessel. A cover member is optionally provided, which is joined to the side member upper edges to cover and seal the vessel. The cover member preferably has a middle area, defined by perforations or surface scoring, which can be torn out along the perforations or surface scoring to expose the interior of the vessel so that the remaining portion of the cover member forms an inwardly projecting, horizontal lip for retaining the litter material. The vessel may be impregnated with an antibacterial agent, a drying agent and a scent.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: December 22, 1992
    Inventors: Robert J. Dobrin, Riza Chase-Gilpin
  • Patent number: 5154594
    Abstract: An animal litter and method for making an animal litter, includes combining bacteria with an absorptive material whereby the bacteria decomposes the animal waste which comes in contact with the absorptive material.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: October 13, 1992
    Inventor: Meredith L. Gamlen
  • Patent number: 5152250
    Abstract: A clumping biodegradable animal litter and method for manufacturing such litter. The animal litter includes a biodegradable carrier such as granulated peanut shells having a grain flour intermixed therewith and attached thereto with oil. The carrier will absorb liquid applied thereto which will interact with the flour to facilitate the agglomeration of the carrier, flour and liquid into a mass having sufficient cohesive strength to allow physical removal of the agglomerated mass.
    Type: Grant
    Filed: January 21, 1992
    Date of Patent: October 6, 1992
    Assignee: Clump & Flush, Inc.
    Inventor: Herman R. Loeb
  • Patent number: 5152251
    Abstract: An improved animal bedding material, particularly suited for use with horses is formed substantially entirely from an aggregation of elongated woodshavings having substantially uniform parameters for improved performance. The length, width, thickness, and curl for each woodshaving forming the agglomerated plurality of such woodshavings is carefully controlled, so that the bedding product is free from sharp edges, fines, and slivers. Ranges for each of the controlled parameters are disclosed.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: October 6, 1992
    Assignee: Horsefeathers Investment, Inc.
    Inventors: Mark C. Aukeman, Timothy J. Admonius
  • Patent number: 5143023
    Abstract: A litter for the accumulation of animal urine, such as a domestic cat litter, having at least one visual indicator chemically bound to the litter base material, and a method for making such litter have been discovered. The litter having the chemical indicator chemically absorbed thereon, rather than merely physically absorbed, permits the litter to be used not only as an effective mechanism by animal owners to determine potential health concerns with their animals; but because the indicator is chemically bound, the same litter may also serve as a useful diagnostic tool in a subsequent visit to a veterinarian. The litter base material must have the ability to exchange ions. Compounds to facilitate agglomeration or clumping of the litter when contacting urine may also be added to the litter base material.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: September 1, 1992
    Assignee: KleanHeart, Inc.
    Inventor: Charles R. Kuhns
  • Patent number: 5135743
    Abstract: The invention provides a liquid composition for deodorizing animal wastes by direct application thereto. The composition comprises an aqueous dispersion which contains an ammonia-controlling-effective amount of pine oil and boric acid.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: August 4, 1992
    Assignee: The Clorox Company
    Inventors: Anna G. Stanislowski, J. Bruce England, Steven D. Ratcliff
  • Patent number: 5129365
    Abstract: A composition and method of absorbing animal dross. In one embodiment, the composition comprises discrete particles (about 50 microns to about 3350 microns, preferably about 600 microns to about 3350 microns in size) of a non-compacted water-swellable bentonite clay that effectively absorbs animal dross and simultaneously agglomerates into a sufficiently large and stable mass, thereby permitting physical separation of the soiled and wetted water-swellable bentonite clay particles from discrete particles of the unsoiled and unwetted water-swellable bentonite clay even after partial drying of about 1 to about 24 hours at room temperature, without substantial sticking to animal paws and fur.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: July 14, 1992
    Assignee: American Colloid Company
    Inventor: John Hughes
  • Patent number: 5109804
    Abstract: A litter material for receiving the excreta of pet animals which are fed at home is disclosed. In contrast to the conventional materials that are not disposable to a flush toilet with water, the inventive litter material is disposable to a flush toilet. The litter material of this invention is prepared from grains, including the steps of heat-cooking for expanding the beans in size and coating thereof with an inorganic material selected from the zeolite series.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: May 5, 1992
    Inventor: Osamu Chikazawa
  • Patent number: 5100600
    Abstract: A method of making an absorbent granulate of paper, with or without additives, includes mechanically comminuting paper into irregular and/or strip-shaped fragments, crumpling and interlacing the fragments with attendant development of internal spaces (cavities) in the interlaced and crumpled fragments, rough pressing the interlaced and crumpled fragments into prepressed formations (e.g., into tubes having a diameter of up to or even in excess of 10 mm), and converting the prepresssed formations into particles, particularly into granules or pellets. The crumpling and interlacing step can include agitating the fragments in one or more streams of a gaseous fluid and/or kneading the fragments.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: March 31, 1992
    Assignee: Fritz Keller
    Inventors: Fritz Keller, Elisabeth Mullhaupt
  • Patent number: 5085175
    Abstract: To provide an animal litter from seed hulls such as sunflower hulls, seed hulls having a fatty acid content between 1 percent to 15 percent by weight, at least 40 percent of the fatty acid being unsaturated fatty acid and being between 50 to 95 percent by weight of hulls, is formed as pellets without substantial added binder. The seed hulls serve the function of aiding in pellet forming to avoid the need of substantial added binder as well as aiding in deodorizing. One appropriate additional deodorizing material that may be an added ingredient is alfalfa. The pellets are preferably formed to sizes between 3/64 to 1 inch in diameter but the size is related to the heating and cooling of the pelletizer.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: February 4, 1992
    Assignee: Board of Regents, University of Nebraska
    Inventors: Luther D. Clements, Jr., Holmes, Carlton S.
  • Patent number: 5062383
    Abstract: An improved animal litter is disclosed containing a regular volatile material fuller's earth clay having a free moisture content of more than 7 percent but less than 25 percent. Furthermore, an improved animal litter is disclosed containing a regular volatile material fuller's earth clay in granular form. The granules are formed by compacting a pulverized regular volatile material fuller's earth clay.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: November 5, 1991
    Inventor: Thomas E. Nelson
  • Patent number: 5060598
    Abstract: A cat litter is provided which is formed from a selective quantity of peat so that the peat absorbs urine such that the release of ammonia is substantially inhibited. A method of producing a cat litter also is provided.
    Type: Grant
    Filed: April 17, 1990
    Date of Patent: October 29, 1991
    Inventor: Jeffrey C. Richards
  • Patent number: 5054434
    Abstract: The accumulation of gaseous ammonia in areas wherein animals are housed or maintained is controlled by providing to the areas animal litter, bedding, or other absorbent material which contain a low molecular weight, non-volatile organic acid. Acids such as citric, malic, fumaric, phosphoric, tartaric, maleic, malonic, succinic, sorbic and mixtures of these acids are used and especially phosphoric and fumaric. These acids can be used in concentrations of about 0.0001 to 2 wt % of the dry bedding.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: October 8, 1991
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Michael J. Wax, Timothy A. Boyer