Patents by Inventor Eric Holdsworth

Eric Holdsworth 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).

  • Air blast dust removing machine
    Patent number: 4003226
    Abstract: An air blast dust removal machine has a jet of air projected from at least one slot-like nozzle inclined at an obtuse angle towards an oncoming sheet material which is held to a moving permeable conveyor belt. The sheet material is held to the conveyor belt by at least one suction device desposed on the opposite side of the conveyor belt as the sheet material passes adjacent the jet of air. A second conveyor belt holds the sheet material from its top side by a suction device; and an obtusely projected jet of air blasts dust from the bottom side of the sheet material.
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: January 18, 1977
    Assignee: USM Corporation
    Inventor: Eric Holdsworth