Patents by Inventor Elmer Bewersdorf

Elmer Bewersdorf 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).

  • Signature gathering machine with segment wheel calibrated to main drive shaft
    Patent number: 4519598
    Abstract: An insert is incorporated in a book of gathered signatures by a segment wheel which makes one-half turn per machine cycle; to calibrate the speed of the wheel to the lineal speed of the signature a coupling incorporating principles of a Whitworth drive is interposed between the main drive shaft of the machine and the drive for the wheel.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: May 28, 1985
    Assignee: McCain Manufacturing Corporation
    Inventors: William B. McCain, Elmer Bewersdorf
  • Varying the drop of sheets into a hopper
    Patent number: 4180259
    Abstract: Signatures fresh from the printing press are fed in a shingled stream toward and then dropped one by one into a hopper which may feed a gathering chain. The signatures are "broken" (unstuck) by first stacking them edgewise on horizontal support, shingling them in a constant stream by an unusual form of suction feed, bending the shingled stream and thereafter cascading the stream into the hopper.
    Type: Grant
    Filed: March 21, 1978
    Date of Patent: December 25, 1979
    Assignee: McCain Manufacturing Co.
    Inventors: Elmer Bewersdorf, James F. Cosgrove, Thomas R. Flavin, Edward Gallagher, Willam B. Mc Cain, Ronald W. Weller, Lawrence J. Werstler
  • Sheet feeders
    Patent number: 4177982
    Abstract: Signatures fresh from the printing press are fed in a shingled stream toward and then dropped one by one into a hopper which may feed a gathering chain.The signatures are "broken" (unstuck) by first stacking them edgewise on a horizontal support, shingling them in a constant stream by an unusual form of suction feed, bending the shingled stream and thereafter cascading the stream into the hopper.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: December 11, 1979
    Assignee: McCain Manufacturing Corporation
    Inventors: Elmer Bewersdorf, James F. Cosgrove, Thomas R. Flavin, Edward Gallagher, William B. McCain, Ronald W. Weller, Lawrence J. Werstler
  • Newspaper stuffers
    Patent number: 4174829
    Abstract: If a newspaper jacket to be stuffed with a collection of inserts does not timely arrive at the stuffing station the inserts intended therefore are rejected but the machine is not stopped; if the inserts are detected as insufficient in number the ones which are present may be rejected and the jacket may also be rejected.
    Type: Grant
    Filed: February 1, 1978
    Date of Patent: November 20, 1979
    Assignee: McCain Manufacturing Corporation
    Inventors: William B. McCain, James F. Cosgrove, Elmer Bewersdorf