Patents by Inventor Thomas I. Bair

Thomas I. Bair 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: 6471864
    Abstract: Highly porous, adsorbent biocatalyst beads of poly(hexamethyleneadipamide) or poly(caproamide) polymer having powdered activated carbon dispersed throughout the polymer and biocatalytic material, such as bacteria, located within macropores of the beads, are highly useful and relatively inexpensive polymeric beads, compared to similar known aramid beads, in removing organic and/or some inorganic contaminants from aqueous streams. The biocatalytic material consumes the organic and/or some inorganic contaminants which are adsorbed by the activated carbon and metabolizes the contaminant into harmless products, while continuously renewing the adsorptive capacity of the activated carbon.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: October 29, 2002
    Assignee: The University of Tulsa
    Inventors: Kerry L. Sublette, William A. Redman, Thomas I. Bair
  • Patent number: 5486292
    Abstract: Highly porous, adsorbent biocatalyst beads of synthetic organic polymer have powdered activated carbon dispersed throughout the polymer and a biocatalyst, such as bacteria, located within macropores of the beads. The beads are used for remediation of contaminated aqueous streams. The biocatalyst can consume adsorbed organic contaminants and convert them into harmless gases, while continuously renewing the adsorptive capacity of the activated carbon.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: January 23, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas I. Bair, Carl E. Camp
  • Patent number: 5482773
    Abstract: Polymeric fibrids containing embedded activated carbon are useful as adsorbents.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: January 9, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas I. Bair
  • Patent number: 5391415
    Abstract: An oil-absorbing article has longitudinal channels that surround a layer of polyester or polyolefin fiber balls with a porous outer fabric. The channels are 1 to 4 cm wide and 0.8 to 1.4 cm thick. The article absorbs oil amounting to at least six times its dry weight and can be re-used at least five times.
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: February 21, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas I. Bair
  • Patent number: 5135787
    Abstract: An iced food shipping container and a novel aqueous liquid absorbing pad for use therein are provided. The pad comprises superabsorbing polymer particles distributed in a polyester carded web contained between hydrophilic fabric outer layers. The pad can absorb more than 100 times its dry weight in water and other aqueous liquids that form during iced food shipment.
    Type: Grant
    Filed: August 14, 1990
    Date of Patent: August 4, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas I. Bair
  • Patent number: 5096722
    Abstract: An improved package for microwave cooking of food has a grease-absorbing pad that has a porous spundbonded polyester outer fabric bonded to a needle-punched nonwoven polyester staple-fiber core layer. The pad provides efficient absorption and retention of liquid fat and grease generated during microwave cooking.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: March 17, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas I. Bair
  • Patent number: 5049430
    Abstract: Copolyester fibers susceptible of enhanced dyeability on continuous dye equipment and which have improved recovery from compression are prepared from a poly(alkylene terephthalate) such as poly(ethylene terephthalate) containing 9 to 17 weight percent of a poly(tetramethylene ether) glycol having a molecular weight of 500 to 1500.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: September 17, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas I. Bair, Henry Kobsa
  • Patent number: 4965129
    Abstract: A sausage-shaped liquid-absorbing article is provided which includes within a porous fabric fine, fibrous particles of flash-spun polyethylene, optionally particles of foamed organic polymer, and an effective amount of a wetting agent. The article is capable of absorbing oils or aqueous liquids in amounts equal to at least six times the weight of the particles.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: October 23, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas I. Bair, Dimitri P. Zafiroglu
  • Patent number: 4957794
    Abstract: A composition is disclosed which comprises a fluff of aramid fibers wherein some of the aramid fibers are in the form of balls of the fluff. The composition is particularly useful for insulation, absorption, cushioning, and the like.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: September 18, 1990
    Assignee: E. I. DuPont de Nemours and Company
    Inventor: Thomas I. Bair
  • Patent number: 4698414
    Abstract: Yarns of copoly(p-phenylene terephthalamide/2,6-naphthalamide) are disclosed which exhibit toughness and tenacity greater than the toughness and tenacity of yarns of poly(p-phenylene terephthalamide) having the same dimensions and made by the same process.
    Type: Grant
    Filed: September 16, 1986
    Date of Patent: October 6, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas I. Bair
  • Patent number: 4466935
    Abstract: In a dry-spinneret wet-spinning process for the preparation of para-aramid filaments by spinning from sulfuric acid solution, filament tenacity and modulus are increased when the tension is applied to the freshly spun, wet filaments when they contain less than 50% sulfuric acid.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: August 21, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas I. Bair, Leslie W. Gulrich, Jr.