Patents by Inventor Bryan C. Andrews

Bryan C. Andrews 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).

  • Magnetic stirrer
    Patent number: 7520657
    Abstract: A magnetic stirring system includes a stir-mantle and a magnetic stirring apparatus used for stirring/mixing materials in a flask. A rare-earth magnet is mounted on the magnetic stirring apparatus and is driven in rotation by a pneumatic motor. The rare-earth magnet is coupled to a magnetic stir bar in the flask for conjoint rotation so that the stir-bar stirs/mixes the materials in the flask. An exhaust is included to channel air from the motor to the rare-earth magnet and to direct the air to flow over the magnet to control the temperature of the magnet.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: April 21, 2009
    Assignee: Sigma-Aldrich Co.
    Inventors: Bryan C. Andrews, Darryl B. Detwiler
  • Magnetic Stirrer
    Publication number: 20080013400
    Abstract: A magnetic stirring system includes a stir-mantle and a magnetic stirring apparatus used for stirring/mixing materials in a flask. A rare-earth magnet is mounted on the magnetic stirring apparatus and is driven in rotation by a pneumatic motor. The rare-earth magnet is coupled to a magnetic stir bar in the flask for conjoint rotation so that the stir-bar stirs/mixes the materials in the flask. An exhaust is included to channel air from the motor to the rare-earth magnet and to direct the air to flow over the magnet to control the temperature of the magnet.
    Type: Application
    Filed: July 13, 2007
    Publication date: January 17, 2008
    Applicant: SIGMA-ALDRICH CO.
    Inventors: Bryan C. Andrews, Darryl B. Detwiler