Patents by Inventor Stuart David Farnworth

Stuart David Farnworth 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).

  • Patent number: 8196624
    Abstract: A pencil sharpener has an electrical motor which drives a sharpening assembly. The end of the pencil to be sharpened is inserted downwardly into an opening in the top surface. Shavings from the sharpening process are deposited in a drawer-like receptacle below the sharpening assembly. A switch is provided so that the sharpening assembly will not be activated when the receptacle drawer is removed for disposal of the shavings.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: June 12, 2012
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Javier Verdura, Jonathan A. Lee
  • Patent number: 7886395
    Abstract: A pencil sharpener case has a rotatable cover which covers a mechanical pencil sharpener. In one position, the cover may be rotatably retracted to provide access to the pencil sharpener. The case also mounts an eraser which may be used when the pencil sharpener is covered.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: February 15, 2011
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Javier Verdura
  • Patent number: 7861355
    Abstract: A retractable eraser has an elongated contoured housing which has a longitudinal slot and spaced detents and an opening at one end. A carrier has a button which is depressible so that a catch clears the detents to permit selective longitudinal displacement of the carrier. An oval shaped eraser element is mounted to the carrier and displaced into and out of the housing so as, in one position, to project beyond the housing. Bristles project longitudinally from the housing around the opening.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: January 4, 2011
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Lee Webb
  • Publication number: 20100212781
    Abstract: A pencil sharpener has an electrical motor which drives a sharpening assembly. The end of the pencil to be sharpened is inserted downwardly into an opening in the top surface. Shavings from the sharpening process are deposited in a drawer-like receptacle below the sharpening assembly. A switch is provided so that the sharpening assembly will not be activated when the receptacle drawer is removed for disposal of the shavings.
    Type: Application
    Filed: February 25, 2009
    Publication date: August 26, 2010
    Inventors: Stuart David Farnworth, Javier Verdura, Jonathan A. Lee
  • Patent number: 7546858
    Abstract: A pencil sharpener includes a base having a bottom surface adapted for being supported by a horizontal surface. A cutting assembly is mounted to the base and projects upwardly therefrom. A cage is disposed above the base and has an upper portion surrounding the cutting assembly. The upper portion of the cage includes at least one radial chute. An upper cover portion has an opening for insertion of an end of a pencil. A receptacle disposed above the base surrounds the cage, for collecting the shavings from sharpening a pencil.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: June 16, 2009
    Assignee: Acme United Corporation
    Inventors: Michael E. Peterson, Stuart David Farnworth, James E. McCay
  • Publication number: 20090067912
    Abstract: A pencil sharpener case has a rotatable cover which covers a mechanical pencil sharpener. In one position, the cover may be rotatably retracted to provide access to the pencil sharpener. The case also mounts an eraser which may be used when the pencil sharpener is covered.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 12, 2009
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Javier Verdura
  • Publication number: 20090064509
    Abstract: A manually operated single hole punch employs a pair of pivoted members having squeezable handles. A pair of opposed jaws have canopies formed from transparent or semi-transparent material to facilitate alignment of the punch with the material to be punched and to observe a reservoir which receives punched remnants.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 12, 2009
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Javier Verdura
  • Publication number: 20090064526
    Abstract: A tape measure employs a generally rounded housing which receives a retractable measuring tape that is coilable within the housing and biased towards the fully coiled position. An actuator button is depressable to fix the measuring tape at a selected extended position. A clip assembly is removably attachable to the tape measure for facilitating mounting the tape measure to a belt. The end of the tape measure includes a stop member that may be configured as a hook portion defining a nail catch. The hook portion also has a rubber overmold to prevent slippage.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 12, 2009
    Inventors: Stuart David Farnworth, James E. McCay
  • Publication number: 20090064453
    Abstract: A retractable eraser has an elongated contoured housing which has a longitudinal slot and spaced detents and an opening at one end. A carrier has a button which is depressible so that a catch clears the detents to permit selective longitudinal displacement of the carrier. An oval shaped eraser element is mounted to the carrier and displaced into and out of the housing so as, in one position, to project beyond the housing. Bristles project longitudinally from the housing around the opening.
    Type: Application
    Filed: September 6, 2007
    Publication date: March 12, 2009
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Lee Webb
  • Patent number: D580985
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: November 18, 2008
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Javier Verdura
  • Patent number: D583689
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: December 30, 2008
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Matt Prancuk, Javier Verdura
  • Patent number: D584773
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: January 13, 2009
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Lee Webb
  • Patent number: D586397
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: February 10, 2009
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee
  • Patent number: D587753
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: March 3, 2009
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee
  • Patent number: D590444
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: April 14, 2009
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Javier Verdura
  • Patent number: D593612
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: June 2, 2009
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Javier Verdura
  • Patent number: D616942
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: June 1, 2010
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Javier Verdura
  • Patent number: D622772
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: August 31, 2010
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Jonathan A. Lee, Javier Verdura
  • Patent number: D631313
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: January 25, 2011
    Assignee: Acme United Corporation
    Inventors: Michael E. Peterson, Stuart David Farnworth, Man For Ma
  • Patent number: D658022
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: April 24, 2012
    Assignee: Acme United Corporation
    Inventors: Stuart David Farnworth, Michael E. Peterson