Patents by Inventor Grant A. Hurd

Grant A. Hurd 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: 5787735
    Abstract: A bleach liquor recovery system for a commercial bleaching apparatus. The recovery system includes a bleaching tank for bleaching loads of textile fabric items with a predetermined batch volume of bleach liquor and a bleach liquor supply system for providing fresh bleach liquor to the bleaching tank. The bleach liquor supply system includes a chemical mixing system for generating the fresh bleach liquor and a bleach liquor injection line for delivering the fresh bleach liquor from the chemical mixing system to the bleaching tank. A bleach liquor recirculation system is connected to the bleaching tank for reclaiming at least a portion of the bleach liquor from the bleaching tank after bleaching a load of textile fabric items and for recycling the reclaimed bleach liquor into successive loads of textile fabric items in the bleaching tank. In the preferred embodiment, a collection tank stores the reclaimed bleach liquor between the successive loads of textile fabric items.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: August 4, 1998
    Assignee: Surry Chemicals, Inc.
    Inventors: Johnnie G. Gunter, Grant A. Hurd, Marlie R. Crotts
  • Patent number: 5666827
    Abstract: A multi-stage fluid and chemical recovery system for a textile article commercial bleaching apparatus having a plurality of bleaching tanks, a fluid and chemical supply system for providing fluid and chemicals to the bleaching tanks, a recirculation system connected to the bleaching tanks for reclaiming fluids and chemicals from the bleaching tanks after treating quantities if textile articles and for preselectively recycling the reclaimed fluids and chemicals into successive quantities of textile articles in the bleaching tanks. A control system is connected to the fluid supply system and the fluid recirculation system for initiating and controlling the introduction of new fluids and chemicals and reclaimed fluids and chemicals to the bleaching tanks so that each stage of the system operates continuously and/or simultaneously with the other stages.
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: September 16, 1997
    Assignee: Renfro Corporation
    Inventors: Jonnie G. Gunter, Grant A. Hurd
  • Patent number: 4023385
    Abstract: A doffing jet for use in jet dyeing machines to plait fabrics being dyed therein. The doffing jet is placed adjacent the area where the fabric discharged from the jet enters the kier of the jet dyeing machine and is operated by having a supply of dyestuff supplied to the jet in an oscillating or pulsating fashion with the periods of liquid flow being with a force sufficient to move the cloth toward the outer wall of the kier.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: May 17, 1977
    Assignee: Burlington Industries, Inc.
    Inventor: Audrey Grant Hurd