Patents by Inventor Lloyd J. Burtrem

Lloyd J. Burtrem 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).

  • Multi-ply unglued paper drive apparatus
    Patent number: 4376589
    Abstract: Paper drive apparatus for multi-ply unglued paper wherein a centrally disposed pin wheel member is rotatable in contact with a backup member the latter having a central groove or slot into which the pins of the pin wheel member are rotatably receivable. Unglued, multi-ply paper is fed into the nip between the pin wheel member and the bifurcated backup roller across a demountable, flexible paper guide, the latter ensuring the proper angle of entry of the unglued paper with respect to the nip between the pin wheel and backup roller.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: March 15, 1983
    Assignee: Burroughs Corporation
    Inventors: Frank J. Avellanet, Robert L. Battey, Lloyd J. Burtrem