Patents by Inventor Barry Sproule

Barry Sproule 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 coating pulp products
    Patent number: 5622599
    Abstract: A method of applying a film of coating material to a web of pulp product on a machine and an apparatus for carrying out the method. The coating material is directed in a fluid against the surface of a web of pulp product in the form of a high volume low velocity atomized spray mist from high volume low pressure spray nozzles with an exiting air pressure from the spray nozzle of 1 to 10 psig, preferably 3 to 6 psig.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: April 22, 1997
    Inventors: Barry Sproule, Marian Corak, Nick Saltarelli