Patents by Inventor Robert W. Megill

Robert W. Megill 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).

  • Method of making rubber
    Patent number: 6043320
    Abstract: Rubber is made by mixing the rubber ingredients at elevated temperature in rubber mixing equipment to obtain a mixed rubber compound. The mixed rubber compound is cryogenically ground into a powder by the application of a cryogenic material into the grinder. A further ingredient is added to the mixed rubber compound powder in a mixer while the further ingredient and mixed rubber compound are in a dry condition to obtain a resulting mixture which is later vulcanized. In one embodiment the further ingredient is fragile ingredients.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: March 28, 2000
    Inventor: Robert W. Megill
  • Method of making rubber
    Patent number: 5902861
    Abstract: Rubber is made by mixing the rubber ingredients at elevated temperature in rubber mixing equipment to obtain a mixed rubber compound. The mixed rubber compound is cryogenically ground into a powder by the application of a cryogenic material into the grinder. A further ingredient is added to the mixed rubber compound powder in a mixer while the further ingredient and mixed rubber compound are in a dry condition to obtain a resulting mixture which is later vulcanized. In one embodiment the further ingredient is fragile ingredients. In another embodiment the method is used for making non-solvent contact adhesive.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: May 11, 1999
    Inventor: Robert W. Megill