Patents by Inventor John A. Lambert

John A. Lambert 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).

  • Motor control for a vacuum cleaner
    Patent number: 8099825
    Abstract: A vacuum cleaner includes a nozzle, an air-filtering dirt receptacle, and a motor. A fan of the vacuum cleaner is configured to be driven by the motor to drive a flow of air that carries dirt from a surface through the nozzle and into the receptacle to clean the surface. A controller of the vacuum cleaner provides a notification to a user of the vacuum cleaner indicative of an excessive amount of dirt in the receptacle when current drawn by the motor drops below a threshold value.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: January 24, 2012
    Assignee: The Scott Fetzer Company
    Inventors: Terry L. Zahuranec, John A. Lambert
  • Motor Control for a Vacuum Cleaner
    Publication number: 20110005023
    Abstract: A vacuum cleaner includes a nozzle, an air-filtering dirt receptacle, and a motor. A fan of the vacuum cleaner is configured to be driven by the motor to drive a flow of air that carries dirt from a surface through the nozzle and into the receptacle to clean the surface. A controller of the vacuum cleaner provides a notification to a user of the vacuum cleaner indicative of an excessive amount of dirt in the receptacle when current drawn by the motor drops below a threshold value.
    Type: Application
    Filed: September 22, 2010
    Publication date: January 13, 2011
    Inventors: Terry L. Zahuranec, John A. Lambert
  • Motor control for a vacuum cleaner
    Patent number: 7823249
    Abstract: A vacuum cleaner includes a nozzle, an air-filtering dirt receptacle, and a motor. A fan is configured to be driven by the motor to drive a flow of air that carries dirt from a surface through the nozzle and into the receptacle to clean the surface. A controller is configured to provide a notification to a user when the speed of the motor exceeds a threshold value.
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: November 2, 2010
    Assignee: The Scott Fetzer Company
    Inventors: Terry L. Zahuranec, John A. Lambert
  • High speed citrus juice extraction method and apparatus
    Publication number: 20100173059
    Abstract: A high speed method and apparatus for citrus juice extraction is provided. The juice extraction system includes a reamer having a plurality of diagonal grooves formed in the surface of the primary rib or ribs of the reamer. The grooves allow juice to escape easily, which in turn allows the reamer to extract over 99% of the citrus juice.
    Type: Application
    Filed: December 30, 2009
    Publication date: July 8, 2010
    Inventor: John A. Lambert