Patents by Inventor Todd R. Carlson

Todd R. Carlson 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).

  • Method to control anodic current in an x-ray source
    Patent number: 7366283
    Abstract: An apparatus and method for an x-ray system includes an x-ray emitter having a first electrode and a second electrode. A high voltage supply is electrically connected to the first electrode. A power supply is electrically connected to the second electrode. A controller electrically connected to the high voltage supply and power supply is configured to provide a predetermined parameter to the second electrode during operation of the x-ray emitter to generate the predetermined dose rate from the x-ray emitter. During operation of the x-ray emitter, at least one operational value of the second electrode corresponding to the predetermined parameter is measured and combined with the predetermined parameter using an algorithm to obtain a modified predetermined parameter to be provided by the controller to the second electrode during a subsequent operation of the x-ray emitter.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: April 29, 2008
    Assignee: Gendex Corporation
    Inventors: Todd R. Carlson, John J. Gregorio, Roberto Molteni
  • Dental x-ray apparatus
    Patent number: 7175345
    Abstract: A dental x-ray apparatus (10) includes a tube head (11) formed from a cast zinc material. Structural components of tube head (11) include such component (20) formed from a plastic material impregnated with a high molecular weight substance, such as barium sulfite. X-ray apparatus 10 has a control panel (15) in close proximity to the tube head (11), and is preferably DC powered.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: February 13, 2007
    Assignee: Gendex Corporation
    Inventors: Arkady Kantor, Roberto Molteni, Daniel P. Murphy, Todd R. Carlson
  • Dental X-ray apparatus
    Patent number: 6945694
    Abstract: A dental x-ray apparatus (10) includes a tube head (11) formed from a cast zinc material. Structural components of tube head (11) include such component (20) formed from a plastic material impregnated with a high molecular weight substance, such as barium sulfite. X-ray apparatus 10 has a control panel (15) in close proximity to the tube head (11), and is preferably DC powered.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: September 20, 2005
    Inventors: Arkady Kantor, Roberto Molteni, Daniel P. Murphy, Todd R. Carlson
  • Dental x-ray apparatus
    Publication number: 20040032930
    Abstract: A dental x-ray apparatus (10) includes a tube head (11) formed from a cast zinc material. Structural components of tube head (11) include such component (20) formed from a plastic material impregnated with a high molecular weight substance, such as barium sulfite. X-ray apparatus 10 has a control panel (15) in close proximity to the tube head (11), and is preferably DC powered.
    Type: Application
    Filed: August 11, 2003
    Publication date: February 19, 2004
    Applicant: DENTSPLY Research & Development Corp.
    Inventors: Arkady Kantor, Roberto Molteni, Daniel P. Murphy, Todd R. Carlson
  • Dental x-ray apparatus
    Publication number: 20030048876
    Abstract: A dental x-ray apparatus (10) includes a tube head (11) formed from a cast zinc material. Structural components of tube head (11) include such component (20) formed from a plastic material impregnated with a high molecular weight substance, such as barium sulfite. X-ray apparatus 10) has a control panel (15) in close proximity to the tube head (11), and is preferably DC powered.
    Type: Application
    Filed: October 24, 2002
    Publication date: March 13, 2003
    Applicant: DENTSPLY Research & Development Corp.
    Inventors: Arkady Kantor, Roberto Molteni, Daniel P. Murphy, Todd R. Carlson
  • X-ray tube with self-biasing deck
    Patent number: 5535254
    Abstract: A self-biased focus X-ray generating tube has a cathode assembly connected by its insert end to a multiplier from outside a vacuum envelope. The multiplier rectifies and multiplies AC power of the filament drive to provide a DC voltage, which is applied to the cathode assembly for pinching the electron beam traveling between the cathode and the anode target of X-ray tube and, as a result, improving the quality of the focal spot.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: July 9, 1996
    Inventor: Todd R. Carlson