Patents by Inventor Charles A. Mitchell

Charles A. Mitchell 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).

  • Process for curing diseases in cultured fish
    Patent number: 6386145
    Abstract: This invention relates to a process for disease control in fish farming and more particularly, to a process whereby proliferative gill disease and other diseases and infections are eliminated by the treatment of a fish rearing pond or tank with low concentrations of Chloramine-T. The Chloramine-T is applied to the pond or tank and allowed to remain in the tank or pond until it breaks down. The concentration of the Chloramine-T can be from about 2 to about 3 PPM.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: May 14, 2002
    Assignee: B. L. Mitchell, Inc.
    Inventor: Charles A. Mitchell
  • Molded drain connection with insert
    Patent number: 4679405
    Abstract: An integrally threaded brass insert is molded into the discharge conduit of a condensate pan such that a steel drainage pipe can be threadably engaged to the insert without causing damage to the plastic discharge conduit. Bonding between the insert and the surrounding conduit is enhanced by providing a knurled surface on the outer periphery of the insert.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: July 14, 1987
    Assignee: Carrier Corporation
    Inventors: Charles A. Mitchell, Thaddeus J. Wawro, Charles E. Whipple, William E. Wright, Sr.