Patents by Inventor Marvin Howlett

Marvin Howlett 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).

  • Repair of worn conveyor belting using thermally applied polymer coatings
    Patent number: 5614267
    Abstract: A method and a product are provided for improving the resistance to abrasion of a load-carrying surface of a conveyor belt formed of a cord-reinforced elastomer material selected from the group consisting of natural and synthetic rubber, the belt being adapted for use for conveying particulate ore or other particulate material having abrasive properties. The method employed comprises cleaning the surface of the conveyor belt prior to coating the same with an abrasion resistant coating. The conveyor belt is characterized by a distribution of pores in the surface to be coated. A flexible coating of a polymer selected from the group consisting of polyolefins and polyester elastomers is flame sprayed in the molten state onto the conveyor belt surface using a flame spray torch. The flame of the torch is spaced from the conveyor surface to avoid contacting of the flame with the surface being coated.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: March 25, 1997
    Assignee: Eutectic Corporation
    Inventor: Marvin Howlett