Patents by Inventor Greg A. Johnson

Greg A. 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: 6191751
    Abstract: A multi-element radio antenna assembly is described. The antenna assembly includes a ground plane element having an array of conductor elements disposed thereon. A pair of LC trap structures provide dual band resonance for cellular telephone and PCS device bandwidth ranges. Additional performance may be achieved with parasitic reflector and director elements. The multi-element directional antenna finds particular applicability for in-vehicle use.
    Type: Grant
    Filed: May 1, 1999
    Date of Patent: February 20, 2001
    Assignee: RangeStar Wireless, Inc.
    Inventor: Greg Johnson
  • Patent number: 6181283
    Abstract: For a wireless telecommunication device, such as a cellular telephone or PCS device, a combined battery pack assembly and antenna assembly for selective detachment therewith. The combined assembly is removably attached to the phoneset member of the wireless communication device. The combined assembly is intended to be selectively removed and subsequently re-attached to the phoneset member. The antenna assembly may be positioned on the removable assembly near the upper portion thereof, and away from user contact during intended operation.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: January 30, 2001
    Assignee: RangeStar Wireless, Inc.
    Inventors: Greg Johnson, Norval N. Luxon
  • Patent number: 6082123
    Abstract: The present invention provides an improved frozen beverage dispenser overcoming the disadvantages of the prior art noted above. Not only is the beverage dispenser relatively simple to construct and maintain, but it also provides an exceptionally fast freeze down time and accurate monitoring and control of the thickness of the slush dispensed from the beverage dispenser of the invention. The components of the beverage dispenser of the invention are housed within a compact housing incorporating solid state design with few mechanical moving parts. The closed loop system includes an evaporator, heat exchanger, condenser, compressor, and a filter/dryer. A tank feed system directs the beverage mix to a cylindrical mixing chamber having a rotatable beater bar located therein. The beater bar is coupled to a direct drive control system which monitors and controls the thickness of the slush formed in the mixing cylinder.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: July 4, 2000
    Inventor: Greg A. Johnson
  • Patent number: 6080185
    Abstract: A system for closing together a first side of a sternum and a second side of the sternum of a patient. The system includes a first grommet to be disposed in the first side. The system includes a second grommet adapted to be disposed in the second side. The system includes a mechanism for placing a grommet into the sternum. The placing mechanism is adapted to hold the grommet for placement in the sternum. The system includes a first wire suture for insertion through the first and second grommets. The system includes a stop mechanism for allowing the placing mechanism to place a grommet into the sternum only in a desired location of the patient and any other portion of the patient is protected from damage by the placing mechanism during operation. A grommet. An approximator. A drill stop mechanism. A placement tool. A method of threading a wire suture through a hole in a sternum. A method of bringing together a first side of a sternum and a second side of the sternum.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: June 27, 2000
    Assignee: Cardiac Assist Technologies, Inc.
    Inventors: Greg A. Johnson, James A. Magovern, Eric LaWhite, Wayne P. Griffin
  • Patent number: 6059818
    Abstract: A system for closing together a first side of a sternum and a second side of the sternum of a patient. The system includes a first grommet to be disposed in the first side. The system includes a second grommet adapted to be disposed in the second side. The system includes a mechanism for placing a grommet into the sternum. The placing mechanism is adapted to hold the grommet for placement in the sternum. The system includes a first wire suture for insertion through the first and second grommets. The system includes a stop mechanism for allowing the placing mechanism to place a grommet into the sternum only in a desired location of the patient and any other portion of the patient is protected from damage by the placing mechanism during operation. A grommet. An approximator. A drill stop mechanism. A placement tool. A method of threading a wire suture through a hole in a sternum. A method of bringing together a first side of a sternum and a second side of the sternum.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: May 9, 2000
    Assignee: Cardiac Assist Technologies, Inc.
    Inventors: Greg A. Johnson, Wayne P. Griffin, James A. Magovern, David W. Kletzli
  • Patent number: 6045572
    Abstract: A system for closing together a first side of a sternum and a second side of the sternum of a patient. The system includes a first grommet to be disposed in the first side. The system includes a second grommet adapted to be disposed in the second side. The system includes a mechanism for placing a grommet into the sternum. The placing mechanism is adapted to hold the grommet for placement in the sternum. The system includes a first wire suture for insertion through the first and second grommets. The system includes a stop mechanism for allowing the placing mechanism to place a grommet into the sternum only in a desired location of the patient and any other portion of the patient is protected from damage by the placing mechanism during operation. A grommet. An approximator. A drill stop mechanism. A placement tool. A method of threading a wire suture through a hole in a sternum. A method of bringing together a first side of a sternum and a second side of the sternum.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: April 4, 2000
    Assignee: Cardiac Assist Technologies, Inc.
    Inventors: Greg A. Johnson, Wayne P. Griffin, James A. Magovern, David W. Kletzli
  • Patent number: 6031867
    Abstract: Updated operating code and parameters can be reprogrammed into a modem system with no disassembly of the modem hardware. The modem system includes an in-circuit reprogrammable memory chip in which operating code and parameters are stored. Two control programs control the reprogramming of updated operating code. One of the control programs is designed for manufacturing and testing purposes. The other control program allows remote reprogramming of updated operating code or parameters from a remote location such as a customer site. The modem system is portable, obtaining power from a standard 9 volt battery. Therefor, various power saving features are also incorporated into the modem system.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: February 29, 2000
    Assignee: Multi-Tech Systems, Inc.
    Inventors: Greg Johnson, Richard David Johnson, David A. Weinzierl
  • Patent number: 5996359
    Abstract: An automatic beverage dispenser shut off system for a beverage dispenser includes a housing for a closed loop refrigeration system. A retaining tank feed system directs the beverage mix to a mixing cylinder having a rotatable beater bar mounted therein. The beater bar is coupled to a motor. The retaining tank cover is in actuating contact with a shut off switch in the power circuit of the beverage dispenser. Removal of the retaining tank cover automatically actuates the shut off switch and cuts off all power to the beverage dispenser.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: December 7, 1999
    Inventor: Greg A. Johnson
  • Patent number: 5999140
    Abstract: A dual band antenna assembly is described to include a pair of dual band active radiating elements disposed upon a dielectric substrate. A pair of LC traps and conductor elements are electrically coupled to the radiating conductor elements to provide dual band resonance for cellular telephone and PCS device bandwidth ranges. Additional performance may be achieved with parasitic reflector and director elements. The multi-element directional antenna finds particular applicability for in-vehicle and wireless communication use.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: December 7, 1999
    Assignee: Rangestar International Corporation
    Inventor: Greg Johnson
  • Patent number: 5986883
    Abstract: A computer and a cooling unit for cooling a computer having a housing with a first panel including an aperture, a central processing unit coupled to a circuit board, a heat exchanger coupled to the central processing unit, and a power supply positioned apart from the heat exchanger. The heat exchanger is positioned internally in the housing, and it is obstructed from the aperture in the first panel. In one particular embodiment, the cooling unit has a separate support element segregated from the power supply and an airflow director attached to the support element. The support element, for example, may have a first section attached to either the housing, the motherboard, or another component of the computer apart from the central processing unit. The support element may also have a second section extending from the first section to an airflow site proximate to the heat exchanger.
    Type: Grant
    Filed: November 5, 1997
    Date of Patent: November 16, 1999
    Assignee: Micron Electronics, Inc.
    Inventors: Greg Johnson, Travis Schaff
  • Patent number: 5979166
    Abstract: The present invention provides an improved frozen beverage dispenser overcoming the disadvantages of the prior art noted above. Not only is the beverage dispenser relatively simple to construct and maintain, but it also provides an exceptionally fast freeze down time and accurate monitoring and control of the thickness of the slush dispensed from the beverage dispenser of the invention. The components of the beverage dispenser of the invention are housed within a compact housing incorporating solid state design with few mechanical moving parts. The closed loop system includes an evaporator, heat exchanger, condenser, compressor, and a filter/dryer. A tank feed system directs the beverage mix to a cylindrical mixing chamber having a rotatable beater bar located therein. The beater bar is coupled to a direct drive control system which monitors and controls the thickness of the slush formed in the mixing cylinder.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: November 9, 1999
    Inventor: Greg A. Johnson
  • Patent number: 5809068
    Abstract: A modem having reduced power dissipation and temperature compensation. The modem includes a data pump, a telephone line interface, memory and a controller, connected to the memory and the data pump, for executing program code to control transfers between the data pump and a telephone line. The telephone line interface includes a current-limited loop holding circuit in order to limit power dissipated in the modem due to DC loop current. The current-limited loop holding circuit includes a constant current source in series with a DC loop holding circuit.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: September 15, 1998
    Assignee: Multi-Tech Systems, Inc.
    Inventor: Greg Johnson
  • Patent number: 5709095
    Abstract: The present invention provides an improved frozen beverage dispenser overcoming the disadvantages of the prior art noted above. Not only is the beverage dispenser relatively simple to construct and maintain, but it also provides an exceptionally fast freeze down time and accurate monitoring and control of the thickness of the slush dispensed from the beverage dispenser of the invention. The components of the beverage dispenser of the invention are housed within a compact housing incorporating solid state design with few mechanical moving parts. The closed loop system includes an evaporator, heat exchanger, condenser, compressor, and a filter/dryer. A tank feed system directs the beverage mix to a cylindrical mixing chamber having a rotatable beater bar located therein. The beater bar is coupled to a direct drive control system which monitors and controls the thickness of the slush formed in the mixing cylinder.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: January 20, 1998
    Inventor: Greg A. Johnson
  • Patent number: 5644594
    Abstract: Updated operating code and parameters can be reprogrammed into a modem system with no disassembly of the modem hardware. The modem system includes an in-circuit reprogrammable memory chip in which operating code and parameters are stored. Two control programs control the reprogramming of updated operating code. One of the control programs is designed for manufacturing and testing purposes. The other control program allows remote reprogramming of updated operating code or parameters from a remote location such as a customer site. The modem system is portable, obtaining power from a standard 9 volt battery. Therefor, various power saving features are also incorporated into the modem system.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: July 1, 1997
    Assignee: Multi-Tech Systems, Inc.
    Inventors: Greg Johnson, Richard David Johnson, David A. Weinzierl
  • Patent number: D361764
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: August 29, 1995
    Assignee: Multi-Tech Systems, Inc.
    Inventors: Dean Brandt, Greg Johnson
  • Patent number: D364377
    Type: Grant
    Filed: October 13, 1994
    Date of Patent: November 21, 1995
    Assignee: Multi-Tech Systems, Inc.
    Inventors: Greg Johnson, David A. Weinzierl
  • Patent number: D367163
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: February 20, 1996
    Assignee: World Pac Trade Corp.
    Inventor: Greg Johnson
  • Patent number: D373280
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: September 3, 1996
    Inventor: Greg A. Johnson
  • Patent number: D417221
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: November 30, 1999
    Assignee: Rangestar International Corporation
    Inventors: Greg Johnson, Kevin K. Ketelson
  • Patent number: D419543
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: January 25, 2000
    Assignee: Citicorp Development Center, Inc.
    Inventors: Lucilla Warren, Nigel Pinnell, Michael Grandcolas, Greg Johnson