Patents by Inventor Mark A. Forsthoff

Mark A. Forsthoff 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).

  • Device for automatically securing a borderwire on a mattress innerspring
    Patent number: 4907327
    Abstract: A device for automatically securing a borderwire on a mattress innerspring comprising a plurality of coils is disclosed. The device comprises a tool for sequentially joining segments of the borderwire to perimeter ones of the coils located along a perimeter of the innerspring, apparatus for advancing the mattress innerspring and borderwire toward the tool, a conductive element for sequentially contacting the perimeter ones of the coils, a sensor for detecting contact of the conductive element with the perimeter ones of the coils, and a control responsive to the sensor for actuating the tool.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: March 13, 1990
    Inventors: Donald B. Ayres, Mark A. Forsthoff