Patents by Inventor Tunis J. Willemstyn

Tunis J. Willemstyn 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 metering and entraining a product into a gas stream
    Patent number: 5490745
    Abstract: A device for metering and entraining a measured quantity of a dry, powdered and/or granular product with a gas stream moving in a conduit system. The device includes a hollow housing having a gas inlet opening and a gas and product outlet opening to and from, respectively, the interior of the housing connected to the conduit system so that a gas stream enters and exits the housing in the conduit system. Inlet structure of an appropriate size at the gas inlet opening causes the gas stream to move between the inlet opening and the outlet opening through the interior of the housing at a sufficient velocity to pick up and entrain product in the interior of the housing in the gas stream. Product is allowed to enter the housing through a product receiving opening from a product supply container to facilitate a supply of product to the interior of the housing.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: February 13, 1996
    Assignee: Motan, Inc.
    Inventors: Charles W. Thiele, Tunis J. Willemstyn, Douglas J. Arndt, John J. McMullen
  • Device for metering and entraining a product into a gas stream
    Patent number: 5340241
    Abstract: A device for metering and entraining a measured quantity of a dry, powdered and/or granular product with a gas stream moving in a conduit system. The device includes a hollow housing having a gas inlet opening and a gas and product outlet opening to and from, respectively, the interior of the housing connected to the conduit system so that a gas stream enters and exits the housing in the conduit system. Inlet structure of an appropriate size at the gas inlet opening causes the gas stream to move between the inlet opening and the outlet opening through the interior of the housing at a sufficient velocity to pick up and entrain product in the interior of the housing in the gas stream. Product is allowed to enter the housing through a product receiving opening from a product supply container to facilitate a supply of product to the interior of the housing.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: August 23, 1994
    Assignee: Motan, Inc.
    Inventors: Charles W. Thiele, Tunis J. Willemstyn, Douglas J. Arndt, John J. McMullen