Patents by Inventor Len Walnoha

Len Walnoha 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).

  • Method and apparatus for trimming a sample from a coiled metal web
    Patent number: 9149848
    Abstract: Sample extraction or trimming from an end strip of an elongated formed metal that is coiled in layers within a tensioned metal coil resting on driven rollers. A cut channel is formed across the material width. In some embodiments the cut channel is formed between the rollers and by cutting at an angle relative to the coil outer surface. Coil weight and/or a coil tensioner mechanism inhibits coil relaxation along the cut channel by maintaining tension on wrapped layers against each other when the coil is unbanded for sample extraction. The coil is rotated so that the cut channel clears the rollers laterally. Material downstream the cut is then separated from the coil. After trimming and/or sample extraction the coil maintains rolled tautness for ease of rebanding.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: October 6, 2015
    Assignee: Primetals Technologies USA LLC
    Inventors: Jennifer Grzyb, Patrick Salpeck, Len Walnoha
  • METHOD AND APPARATUS FOR TRIMMING A SAMPLE FROM A COILED METAL WEB
    Publication number: 20120187091
    Abstract: Sample extraction or trimming from an end strip of an elongated formed metal that is coiled in layers within a tensioned metal coil resting on driven rollers. A cut channel is formed across the material width. In some embodiments the cut channel is formed between the rollers and by cutting at an angle relative to the coil outer surface. Coil weight and/or a coil tensioner mechanism inhibits coil relaxation along the cut channel by maintaining tension on wrapped layers against each other when the coil is unbanded for sample extraction. The coil is rotated so that the cut channel clears the rollers laterally. Material downstream the cut is then separated from the coil. After trimming and/or sample extraction the coil maintains rolled tautness for ease of rebanding.
    Type: Application
    Filed: December 21, 2011
    Publication date: July 26, 2012
    Applicant: SIEMENS INDUSTRY, INC.
    Inventors: Jennifer Grzyb, Patrick Salpeck, Len Walnoha