Patents by Inventor James E. Dickerson

James E. Dickerson 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: 7693464
    Abstract: A user-removable stabilizer for a toner cartridge assembly comprises of at least one member that becomes inserted in the toner cartridge assembly for capturing a first movable section of the toiler cartridge assembly and interconnecting at least the first movable section with a second movable section of the toner cartridge assembly, and a stopping member protruding upwardly from the at least one member for limiting insertion of the stabilizer into the toner cartridge assembly. A method of stabilizing movable sections of a toner cartridge assembly is also provided.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: April 6, 2010
    Assignee: Lexmark International, Inc.
    Inventors: Howard C. Farris, Abigail S. Marsh, Jerry W. Smith, James E. Dickerson
  • Publication number: 20080260433
    Abstract: A stabilizer for interconnecting two movable sections of a toner cartridge assembly. A toner cartridge assembly incorporating a stabilizer and a method of stabilizing movable sections of a toner cartridge assembly are also provided.
    Type: Application
    Filed: April 20, 2007
    Publication date: October 23, 2008
    Inventors: Howard C. Farris, Abigail S. Marsh, Jerry W. Smith, James E. Dickerson
  • Patent number: 4529894
    Abstract: Disclosed is a means for enhancing logic circuit performance and more particularly, for enhancing the switching speeds of a variety of logic circuits. What is involved is the insertion of a so called "snap" or enhancement transistor connected to a common node defining an output of a basic logic circuit. In one example, the emitter of this "snap" transistor is connected to an output node in the circuit, which in conventional practice would be charged during an upgoing transition by a fixed RC time constant. In accordance with the present improvement, however, the "snap" transistor, due to charge stored therein, remains conducting--although the associated logic device is turned off. This current discharges as reverse base current and the output provides what appears to be an inductive voltage spike. The effect is that a temporary source of current is available to charge the common node.
    Type: Grant
    Filed: June 15, 1981
    Date of Patent: July 16, 1985
    Assignee: IBM Corporation
    Inventors: Yuen H. Chan, James E. Dickerson, Walter S. Klara, Theodore W. Kwap, Joseph M. Mosley