Patents by Inventor William Rowand

William Rowand 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).

  • Foam dispensing apparatus
    Patent number: 10220397
    Abstract: A foam dispensing apparatus is capable of dispensing a mixture of a resin component and an isocyanate component. The foam dispensing apparatus includes a resin line and an isocyanate line connected to a manifold. A nozzle is connected to the manifold and the mixture is dispensed through the nozzle. The manifold defines a resin duct in communication with the resin line and the nozzle and an isocyanate duct in communication with the isocyanate line and the nozzle. At least one valve is connected to the resin and isocyanate lines and is moveable between an open position allowing flow through the resin and isocyanate lines and a closed position preventing flow through the resin and isocyanate lines. The valve is disposed exterior to the manifold and the flow is unregulated in the manifold for reducing maintenance of the manifold.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: March 5, 2019
    Assignee: BASF SE
    Inventors: John H. Swab, Matthew C. Dunlap, William Rowand
  • FOAM DISPENSING APPARATUS
    Publication number: 20110121034
    Abstract: A foam dispensing apparatus is capable of dispensing a mixture of a resin component and an isocyanate component. The foam dispensing apparatus includes a resin line and an isocyanate line connected to a manifold. A nozzle is connected to the manifold and the mixture is dispensed through the nozzle. The manifold defines a resin duct in communication with the resin line and the nozzle and an isocyanate duct in communication with the isocyanate line and the nozzle. At least one valve is connected to the resin and isocyanate lines and is moveable between an open position allowing flow through the resin and isocyanate lines and a closed position preventing flow through the resin and isocyanate lines. The valve is disposed exterior to the manifold and the flow is unregulated in the manifold for reducing maintenance of the manifold.
    Type: Application
    Filed: November 22, 2010
    Publication date: May 26, 2011
    Applicant: BASF SE
    Inventors: John H. Swab, Matthew C. Dunlap, William Rowand