Patents by Inventor Frank Mains

Frank Mains 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).

  • Deep immersion shrinkproofing of wool
    Patent number: 4377388
    Abstract: According to the invention disclosed herein wool sliver may be effectively shrinkproofed by immersing the sliver continuously into a bath of shrinkproofing solution to a depth of at least 1 meter if said sliver is carried down into said solution within 10.degree. of vertical. According to the invention the most useful solution is an aqueous solution into which chlorine gas has been aspirated. An apparatus according to the invention comprises a substantially U-shaped bath having a depth exceeding 1 meter and equipped with means to convey wool sliver into said bath within 10.degree. of vertical.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: March 22, 1983
    Assignee: Kroy Unshrinkable Wools, Limited
    Inventor: Frank Mains
  • Material immersion apparatus
    Patent number: 4261188
    Abstract: According to the invention disclosed herein wool sliver may be effectively shrinkproofed by immersing the sliver continuously into a bath of shrinkproofing solution to a depth of at least 1 meter if said sliver is carried down into said solution within 10.degree. of vertical. According to the invention the most useful solution is an aqueous solution into which chlorine gas has been aspirated. An apparatus according to the invention comprises a two chambered bath having a delay tank therebetween, having a depth exceeding 1 meter and equipped with means to convey wool sliver into said bath within 10.degree. of vertical.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: April 14, 1981
    Assignee: Kroy Unshrinkable Wools Limited
    Inventor: Frank Mains
  • Handle grip
    Patent number: D1024721
    Type: Grant
    Filed: May 18, 2023
    Date of Patent: April 30, 2024
    Assignee: STICK MOBILITY PRODUCTS LLC
    Inventors: Jeff Mains, Randy Hew, Mike Schroder, Frank Gray