Patents by Inventor Dennis A. Schaffer

Dennis A. Schaffer 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: 4709471
    Abstract: A method of constructing a jointed magnetic core from amorphous metal, which includes winding a closed core loop having a plurality of nested lamination turns disposed about a core opening or window, and positioning the closed core loop on a support surface with the winding axis horizontally disposed, to allow the inherent flexibility of amorphous metal to collapse the loop opening and create a concave loop in the unsupported portion of the closed core loop. The method further includes the step of lifting a plurality of lamination turns from the concave loop portion, to provide a clearance between the raised lamination turns and the remaining lamination turns in the concave loop to facilitate cutting the lamination turns. A cutting device, which may be a laser or a mechanical cutter, cuts one or more of the raised lamination turns.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: December 1, 1987
    Assignee: Westinghouse Electric Corp.
    Inventors: Milan D. Valencic, Dennis A. Schaffer
  • Patent number: 4183237
    Abstract: A container for drawing or ironing dies is particularly useful but is not limited to can making. It includes an outer ring having an inwardly extending flange at one end and a disc secured to its other end so as to provide a peripheral space for receiving at least three segments which are resiliently urged against a die ring. The radial length of the slot is greater than the radial length of the segments so that the die ring can be displaced from the normal axis of the die pack. Means co-axial with the normal axis of the die limit inward movement of the segments.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: January 15, 1980
    Assignee: Carmet Company
    Inventor: Dennis A. Schaffer
  • Patent number: 4109502
    Abstract: A container for drawing or ironing dies is particularly useful but is not limited to can making. It includes an outer ring having an inwardly extending flange at one end and a disc secured to its other end so as to provide a peripheral space for receiving at least three segments which are resiliently urged against a die ring. The radial length of the slot is greater than the radial length of the segments so that the die ring can be displaced from the normal axis of the die pack. Means co-axial with the normal axis of the die limit inward movement of the segments.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: August 29, 1978
    Assignee: Carmet Company
    Inventor: Dennis A. Schaffer