Patents by Inventor Curt Shaffer

Curt Shaffer 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).

  • Apparatus for forming a splice joint for plastic coated fabric conveyor belt
    Patent number: 6675853
    Abstract: An apparatus and method for forming a splice in a conveyor belt. The apparatus includes a lower plate having a heating strip where the splice is being formed. The lower plate includes areas of insulation adjacent the heating strip to reduce transfer of heat to areas of the conveyor belt adjacent the splice during vulcanization or heating.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: January 13, 2004
    Inventor: Curt Shaffer
  • Splice joint for plastic coated fabric conveyor belt and method of making the same
    Publication number: 20020050445
    Abstract: An apparatus and method for forming a splice in a conveyor belt. The apparatus includes a lower plate having a heating strip where the splice is being formed. The lower plate includes areas of insulation adjacent the heating strip to reduce transfer of heat to areas of the conveyor belt adjacent the splice during vulcanization or heating.
    Type: Application
    Filed: November 26, 2001
    Publication date: May 2, 2002
    Inventor: Curt Shaffer
  • Splice joint for plastic coated fabric conveyor belt and method of making the same
    Patent number: 6321903
    Abstract: Splice joint for plastic coated fabric conveyor belt or similar article which initially provides a mechanical bond between the two (2) conveyor belt ends to be joined prior to a vulcanization process. This is achieved by providing a “jig-saw puzzle” splice between the two (2) conveyor belt ends to be joined wherein at least one of the conveyor belt ends to be joined has outwardly extending mushroom shaped or arrow-head shaped tabs and the other conveyor belt end to be joined has corresponding inwardly extending sockets to provide both increased splice joint surface area, as well as a mechanical bond, between the two (2) conveyor belt ends to be joined.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: November 27, 2001
    Inventor: Curt Shaffer