Patents by Inventor Marshall B. Johnson

Marshall B. Johnson 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: 5309514
    Abstract: A pulse generator for generating pulses for modulation onto a carrier or subcarrier of a composite television signal is provided. The pulse generator includes a memory such as an EPROM for storing one or more waveshapes. Each stored waveshape is defined by a sequence of addressable values representing the amplitude of the waveshape as a function of time. A selecting circuit such as a microprocessor selects one of the waveshapes in the memory. A counting circuit responsive to a clock signal controls the address lines of the memory to read the amplitude values corresponding to the selected waveshape from the memory. The amplitude values are supplied to a digital to analog converter to convert the amplitude values to an analog pulse. The pulse may then be filtered to remove clock noise. The resultant signal is supplied to an amplitude modulator for modulating the signal onto a carrier or subcarrier of a composite television signal.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: May 3, 1994
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Marshall B. Johnson, Lamar E. West, Jr.
  • Patent number: 4106534
    Abstract: A barrel filler is provided for facilitating, filling and compacting of comestibles, such as cookie dough or the like in a dispensing mechanism for extruding the comestibles. The barrel filler is designed for placing comestibles in a dispensing mechanism having a centrally located shaft with a piston thereon. The barrel filler is designed to permit sanitary cleaning thereof.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: August 15, 1978
    Assignee: Wear-Ever Aluminum, Inc.
    Inventor: Marshall B. Johnson
  • Patent number: D246410
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: November 22, 1977
    Assignee: Melitta, Inc.
    Inventors: Wolfgang Harms, Marshall B. Johnson, Karl H. Bergmann, Richard G. Gelak
  • Patent number: D247414
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: March 7, 1978
    Assignee: Aluminum Company of America
    Inventors: Donald E. Watkins, Marshall B. Johnson
  • Patent number: D251436
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: March 27, 1979
    Assignee: Wear-Ever Aluminum, Inc.
    Inventor: Marshall B. Johnson
  • Patent number: D251569
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: April 10, 1979
    Assignee: Wear-Ever Aluminum, Inc.
    Inventor: Marshall B. Johnson
  • Patent number: D256467
    Type: Grant
    Filed: January 20, 1978
    Date of Patent: August 19, 1980
    Assignee: Wear-Ever Aluminum, Inc.
    Inventors: Marshall B. Johnson, Donald E. Watkins, Robert A. Williams
  • Patent number: D256759
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: September 9, 1980
    Assignee: Wear-Ever Aluminum, Inc.
    Inventor: Marshall B. Johnson
  • Patent number: D258038
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: January 27, 1981
    Assignee: Wear-Ever Aluminum, Inc.
    Inventor: Marshall B. Johnson
  • Patent number: D262709
    Type: Grant
    Filed: March 18, 1980
    Date of Patent: January 19, 1982
    Assignee: Wear-Ever Aluminum, Inc.
    Inventors: Robert A. Williams, Marshall B. Johnson, Robert S. Myerly, Leo F. Brown
  • Patent number: D262710
    Type: Grant
    Filed: March 18, 1980
    Date of Patent: January 19, 1982
    Assignee: Wear-Ever Aluminum, Inc.
    Inventors: Robert A. Williams, Marshall B. Johnson, Robert S. Myerly
  • Patent number: D263441
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: March 23, 1982
    Assignee: Wear-Ever Aluminum, Inc.
    Inventors: Marshall B. Johnson, Amos Gott
  • Patent number: D264341
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: May 11, 1982
    Assignee: Wear-Ever Aluminum, Inc.
    Inventors: Robert A. Williams, Marshall B. Johnson
  • Patent number: D273358
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: April 10, 1984
    Assignee: Wear-Ever Aluminum, Inc.
    Inventors: Marshall B. Johnson, Robert S. Myerly
  • Patent number: D276406
    Type: Grant
    Filed: July 6, 1982
    Date of Patent: November 20, 1984
    Assignee: Wear-Ever Aluminum, Inc.
    Inventors: Marshall B. Johnson, Joseph F. Moore, Robert S. Myerly
  • Patent number: D294991
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: March 29, 1988
    Assignee: Wearever-Proctorsilex
    Inventors: Marshall B. Johnson, John C. Meadway
  • Patent number: D314267
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: January 29, 1991
    Assignee: Proctor-Silex, Inc.
    Inventors: Marshall B. Johnson, John C. Meadway
  • Patent number: D317238
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: June 4, 1991
    Assignee: Proctor-Silex, Inc.
    Inventors: Louis M. Busick, Marshall B. Johnson, R. Scott Myerly
  • Patent number: D345079
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: March 15, 1994
    Assignee: Hamilton Beach/Proctor-Silex
    Inventor: Marshall B. Johnson