Patents by Inventor Roger L. Snow, Sr.

Roger L. Snow, Sr. 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).

  • Pipe thread protector
    Patent number: 4501301
    Abstract: A cup shaped or cylindrical thread protector, having circumferentially spaced, internally projecting lugs, is formed by injection molding of a thermoplastic resin into a female mold cavity having a smooth cylindrical interior and having a male mold member fitting therein and cooperable therewith to define a cup shaped or cylindrical cavity. The male mold member has a plurality of recesses of a size and shape operable to produce said lugs in the molded thread protector produced therein. When the thread protector is molded, the male mold member is rotated about its axis sufficiently to compress said lugs into the cup wall thereof at a time after the thermoplastic has solidified but before it has cooled and is then pulled from within the cup shaped member.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: February 26, 1985
    Inventors: Roger L. Snow, Sr., Thomas J. Atkinson
  • Manufacture of pipe thread protectors
    Patent number: 4399092
    Abstract: A cup shaped or cylindrical thread protector, having circumferentially spaced, internally projecting lugs, is formed by injection molding of a thermoplastic resin into a female mold cavity having a smooth cylindrical interior and having a male mold member fitting therein and cooperable therewith to define a cup shaped or cylindrical cavity. The male mold member has a plurality of recesses of a size and shape operable to produce said lugs in the molded thread protector produced therein. When the thread protector is molded, the male mold member is rotated about its axis sufficiently to compress said lugs into the cup wall thereof at a time after the thermoplastic has solidified but before it has cooled and is then pulled from within the cup shaped member.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: August 16, 1983
    Inventors: Roger L. Snow, Sr., Thomas J. Atkinson