Patents by Inventor Ernest Levon Richards

Ernest Levon Richards 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).

  • Dust collection mat and method of manufacture
    Patent number: 4012544
    Abstract: A no creep dust collection mat having a laminated rubber backing which has a plurality of spaced sections of hook accommodating material projecting therethrough to accommodate an attaching member which secures the mat in a relatively fixed position on a carpeted floor.
    Type: Grant
    Filed: June 12, 1975
    Date of Patent: March 15, 1977
    Assignee: Milliken Research Corporation
    Inventor: Ernest Levon Richards
  • Wet mop head construction
    Patent number: 3966259
    Abstract: A wet mop head construction and a method of making such construction comprising a pile fabric having an improved headband for attachment to the gripping elements of a wet mop tool and wherein the headband is comprised of a fabric material sewn about an end of the main body pile fabric portion with end portions of the headband extending from the pile fabric to partially cover and prevent the gripping elements of a mop tool from contacting a surface being treated by the mop head.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: June 29, 1976
    Assignee: Deering Milliken Research Corporation
    Inventor: Ernest Levon Richards
  • Dust collection mats
    Patent number: 3956551
    Abstract: A dust control mat having a pile fabric upper surface and a bottom calendered rubber stock sheet which employs an anti-tear strip located perpendicular to the grain or calendered direction of the rubber stock sheet between the rubber sheet and a latex backing on the pile fabric. A novel method is employed to produce the mat in which the reinforcing tear strip is located in position prior to vulcanizing the rubber stock sheet in an autoclave.
    Type: Grant
    Filed: September 16, 1974
    Date of Patent: May 11, 1976
    Assignee: Deering Milliken Research Corporation
    Inventor: Ernest Levon Richards