Patents by Inventor Thomas J. Chresand

Thomas J. Chresand 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).

  • Publication number: 20040099740
    Abstract: The present invention relates to merchandising components for authenticating products, combinations that include the merchandising component and a product, methods of associating the merchandising component with a product, and methods of utilizing the merchandising component to authenticate a product. More particularly, the merchandising component includes an authentication component capable of producing a two-dimensional, human readable image upon irradiation with electromagnetic radiation. Advantageously, the image produced is unambiguous and capable of being verbally described in an objective manner. The image so produced can be compared with an authentication image, or verbal description thereof, known to be associated with the product in order to reach an authentication determination about the same.
    Type: Application
    Filed: November 25, 2002
    Publication date: May 27, 2004
    Inventors: Thomas J. Chresand, Nathan M. Olson, Richard C. Lindmark
  • Patent number: 5518668
    Abstract: An air stripper assembly includes a housing having at least one sieve tray operatively positioned therein. Each sieve tray is selectively removable from the housing. If more than one sieve tray is positioned within the housing, each is removable without a need to change orientation of any other sieve tray positioned within the housing. Thus, an operator can easily clean and maintain a selected sieve tray, without disassembling the entire assembly or affecting the location of other sieve trays.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: May 21, 1996
    Assignee: Biotrol, Inc.
    Inventors: Thomas J. Chresand, James J. Higgins, Robert E. Clifford, III
  • Patent number: 5062958
    Abstract: An arrangement for operation to reduce organic contaminant concentration in water passing therethrough as provided. The arrangement includes at least one reactor comprising a plurality of treatment chambers oriented in series, each chamber including an upstream downcomer portion and a downstream column portion separated by a wall member. Fluid flow is provided between a downcomer portion and the column portion. Means are provided such that water can flow through any associated chamber by introduction into an upper portion of the downcomer portion of the chamber, with passage downwardly to a feed space and a bottom portion of the column portion of the chamber and upwardly through the column portion. The water then flows outwardly from the chamber, into a next downstream chamber if one is provided.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: November 5, 1991
    Assignee: BioTrol, Inc.
    Inventors: George F. Bateson, Thomas J. Chresand, Joel D. Moore, Terrence L. Nayes
  • Patent number: 4925552
    Abstract: An arrangement for operation to reduce organic contaminant concentration in water passing therethrough as provided. The arrangement includes at least one reactor comprising a plurality of treatment chambers oriented in series, each chamber including an upstream downcomer portion and a downstream column portion separated by a wall member. Fluid flow is provided between a downcomer portion and the column portion. Means are provided such that water can flow through any associated chamber by introduction into an upper portion of the downcomer portion of the chamber, with passage downwardly to a feed space and a bottom portion of the column portion of the chamber and upwardly through the column portion. The water then flows outwardly from the chamber, into a next downstream chamber if one is provided.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: May 15, 1990
    Assignee: BioTrol, Inc.
    Inventors: George F. Bateson, Thomas J. Chresand, Joel D. Moore, Terrence L. Nayes