Patents by Inventor S. David Newell

S. David Newell 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 a composite thread protector
    Patent number: 4549337
    Abstract: A composite dual wall cast urethane elastomer to metal thread protector that will be practical under normal as well as frigid temperature conditions of usage is formed by deep drawing a seamless metal shell wall, using a threaded die to define a mold cavity with the metal shell wall, forming and setting a synthetic elastomeric shell wall within the mold cavity in an adhering assembled relation with and along the metal shell wall with threading that is complementary with threading of the die, removing the assembly by unscrewing it with respect to the threaded die, and subjecting the assembly to heat treatment to cure the elastomeric shell wall and provide a composite protector having a cast urethane elastomer wall in a secure adhering encapsulating relation on the metal shell wall.
    Type: Grant
    Filed: July 1, 1983
    Date of Patent: October 29, 1985
    Assignee: Alco Industries, Inc.
    Inventors: S. David Newell, William F. Matko, James L. Onoratti, Lawrence H. Parrott