Patents by Inventor Maurice G. Pattengill

Maurice G. Pattengill has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5458091
    Abstract: The invention provides a clumpable animal litter mixture having about 5 to 50 weight percent bentonite, about 0.1 to 25 weight percent gum-containing clumping agent and balance filler particulate. The gum-containing clumping agent is formed from a plant selected from the group consisting of the Plantago and Cydonia families. The clumpable animal litter mixture is pourable into a litter box and agglomerates into a clump upon contact with urine. The clump of the agglomerated bentonite, gum-containing clumping agent, filler particulate and urine is capable of removal with a perforated scoop after as little as one minute of formation. The clumpable mixture is formed by introducing the gum-containing clumping agent into a foam. The gum-containing mixture is mixed into the foam to distribute the clumping agent throughout the foam. The mixed gum-containing clumping agent and foam is then added to solid particulate to adhere the gum-containing clumping agent to the solid particulate.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: October 17, 1995
    Assignee: Western Aggregates, Inc.
    Inventors: Maurice G. Pattengill, Jerry D. Glynn, Martin A. Jones
  • Patent number: 5441760
    Abstract: A chipseal overlay coating having in situ deicing properties. An absorbent material such as lightweight aggregate, is mixed with oil, asphalt and/or concrete to form a thoroughfare chipseal overlay. Deicing materials are applied to the overlay or to the absorbent material prior to the mixing process. Due to the highly absorbent nature of the chipseal overlay, the deicing material is absorbed. During icing and snow conditions, the impregnated material reacts with the ice and snow to cause them to melt.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: August 15, 1995
    Assignee: Western Aggregates, Inc.
    Inventors: Maurice G. Pattengill, Martin A. Jones
  • 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: 5325816
    Abstract: A waterproof receptacle for use in the disposal of animal waste products. The litter receptacle contains a layer of porous expanded shale. The porous shale has a porisity of at least 10% by volume for reducing bulk density of the porous shale and an ability to absorb liquid waste upwardly. Advantageously, the porous structure allows a portion of the liquid to flow to the bottom of the receptacle for subsequent upward absorption. Most advantageously, a screen size of at least +50 mesh (300 microns) is maintained to limit dusting. Optionally, 5 to 25% by weight ammonia absorbing zeolite may be added for odor control.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: July 5, 1994
    Assignee: Western Aggregates, Inc.
    Inventors: Maurice G. Pattengill, Jerry D. Glynn, Martin A. Jones
  • Patent number: 4946311
    Abstract: Process for disposal of a waste ash by addition thereto of sodium salts, preferably sodium sulfur oxide salt Na.sub.2 SO.sub.x where x is 3 and/or 4, in an amount ranging from 5-85 weight percent (dry basis) and adjusting the water percentage to within the range of 6-35%, preferably 15-28%. The coefficient of permeability of the ash and sodium salt is reduced from 10.sup.2 cm/sec to the "impermeable" standard of 10.sup.-6 and below. The preferred mixes also call for a smectite clay additive present in the range of from 0.1% to 5%. A flocculant in amounts of 0.01% to 1% can be substituted for about 3-5% of the water content. A principal source of the Ma.sub.2 SO.sub.x is sodium FGD waste, preferably from the use of Nahcolite (a natural mineral form of sodium bicarbonate) as an SO.sub.x sorbent in the Nahcolite FGC process. The resulting co-disposal process simultaneously renders the highly soluble Na.sub.2 SO.sub.x (10.sup.
    Type: Grant
    Filed: February 19, 1988
    Date of Patent: August 7, 1990
    Assignee: NaTec Mines, Ltd.
    Inventors: Edward C. Rosar, Maurice G. Pattengill
  • Patent number: 4726710
    Abstract: Process for disposal of fossil fuel ash by addition thereto of sodium salts, preferably sodium sulfur oxide salt Na.sub.2 SO.sub.x where x is 3 and/or 4, in an amount ranging from 5-85 weight percent (dry basis) and adjusting the water percentage to within the range of 6-35%, preferably 15-28%. The coefficient of permeability of the ash and sodium salt is reduced from 10.sup.2 cm/sec to the "impermeable" standard of 10.sup.-6 and below. The preferred mixes also call for a smectite clay additive present in the range of from 0.1% to 5%. A flocculant in amounts of 0.01% to 1% can be substituted for about 3-5% of the water content. A principal source of the Na.sub.2 SO.sub.x is sodium FGD waste, preferably from the use of Nahcolite (a natural mineral form of sodium bicarbonate) as an SO.sub.x sorbent in the Nahcolite FGD process. The resulting co-disposal process simultaneously renders the highly soluble Na.sub.2 SO.sub.x (10.sup.
    Type: Grant
    Filed: June 16, 1986
    Date of Patent: February 23, 1988
    Assignee: Industrial Resources, Inc.
    Inventors: Edward C. Rosar, Maurice G. Pattengill