Patents by Inventor Terry M. Shellhamer

Terry M. Shellhamer 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).

  • Patent number: 5186981
    Abstract: A coated roller for transportation and stretching of plastic film web during load unitization, and a process for preparation of the coated roller. A cylindrical metallic roller core is pitted by blasting, then primed, heated and immersed in a room-temperature liquid plastisol comprising vinyl particles dissolved in a plasticizer. The plastisol accumulates on the hot metal to a depth determined by immersion time. After removal, curing and cooling the coated core is machined by lathe to expose a cellular infrastructure and achieve a cylindrical coating coaxial with the core. The coated roller exhibits superior durability, resistance to tackifier additive buildup, and resistance to circumferential web slippage during web stretch between two rollers in a film path from a supply roll to a load being wrapped.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: February 16, 1993
    Assignee: Lantech, Inc.
    Inventors: Terry M. Shellhamer, James C. Ward, David M. Edwards