Patents by Inventor Robert Ellsworth Evans

Robert Ellsworth Evans 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).

  • Friction materials containing blends of organic fibrous and particulate components
    Patent number: 6110991
    Abstract: Dry processed friction materials are disclosed wherein the components thereof include dry blends of a) fibrillated, organic, synthetic polymer, b) organic, synthetic polymer staple and c) organic, synthetic soluble polymer particles.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: August 29, 2000
    Assignee: Sterling Chemicals, International, Inc.
    Inventors: Stanley Sigmund Kaminski, Robert Ellsworth Evans
  • Friction materials containing blends of organic fibrous and particulate components
    Patent number: 5919837
    Abstract: Wet processed friction materials are disclosed wherein the components thereof include blends of a) fibrillated, organic, synthetic polymer, b) organic, synthetic polymer staple and c) organic, synthetic soluble polymer particles.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: July 6, 1999
    Assignee: Sterling Chemicals International, Inc.
    Inventors: Stanley Sigmund Kaminski, Robert Ellsworth Evans
  • Method for manufacturing friction materials containing blends of organic fibrous and particulate components
    Patent number: 5889082
    Abstract: A method for producing wet processed friction materials are disclosed wherein the components thereof include blends of a) fibrillated, organic, synthetic polymer, b) organic, synthetic polymer staple and c) organic, synthetic soluble polymer particles.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: March 30, 1999
    Assignee: Sterling Chemicals International, Inc.
    Inventors: Stanley Sigmund Kaminski, Robert Ellsworth Evans
  • Friction materials containing blends of organic fibrous and particulate components
    Patent number: 5889080
    Abstract: A method for making a dry blend for use in the preparation of a friction material, a dry blend per se and dry friction materials is disclosed wherein the components thereof include a) fibrillated, organic, synthetic polymer, b) organic, synthetic polymer staple and c) organic, synthetic soluble polymer particles.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: March 30, 1999
    Assignee: Sterling Chemicals International, Inc.
    Inventors: Stanley Sigmund Kaminski, Robert Ellsworth Evans