Patents by Inventor Leonard S. Schaer

Leonard S. Schaer 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).

  • Front loading centrifugal spin caster
    Patent number: 4519971
    Abstract: A front loading spin caster for spin casting a mold includes a vertically stationary top plate, a vertical movable bottom plate, a housing in which the top and bottom plates are disposed, a loading door disposed on one of the sides of the housing and adapted to allow the mold to be moved therethrough in a generally horizontal direction and placed on the bottom plate. The bottom plate can then be moved vertically upward to cause the mold to contact the top plate and a rotational force applied to the top plate propagates from the top plate through the mold to the bottom plate, the top plate, bottom plate and mold thus rotating together.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: May 28, 1985
    Assignee: Tekcast Industries, Inc.
    Inventor: Leonard S. Schaer
  • Front loading centrifugal spin caster
    Patent number: 4478567
    Abstract: A front loading spin caster for spin casting a mold includes a vertically stationary top plate, a vertical movable bottom plate, a housing in which the top and bottom plates are disposed, a loading door disposed on one of the sides of the housing and adapted to allow the mold to be moved therethrough in a generally horizontal direction and placed on the bottom plate. The bottom plate can then be moved vertically upward to cause the mold to contact the top plate and a rotational force applied to the top plate propagates from the top plate through the mold to the bottom plate, the top plate, bottom plate and mold thus rotating together.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: October 23, 1984
    Assignee: Tekcast Associates, Inc.
    Inventor: Leonard S. Schaer
  • Spin casting machine
    Patent number: D472908
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: April 8, 2003
    Inventor: Leonard S. Schaer