Patents by Inventor David R. Fuhr

David R. Fuhr 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: 9509242
    Abstract: A method for operating a direct current (DC) motor is shown and described. The method includes generating a first pulse width modulated (PWM) signal having a first duty cycle, providing the first PWM signal as a PWM DC output for the DC motor, and adjusting the first duty cycle to control a speed of the DC motor. The method further includes sensing an electric current output to the motor using a current sensor and, when the sensed current exceeds a threshold, holding the PWM DC output off.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: November 29, 2016
    Assignee: Johnson Controls Technology Company
    Inventors: Russell W. Diamond, Gary A. Romanowich, David R. Fuhr
  • Publication number: 20160157512
    Abstract: This invention relates to wildlife nutritional supplementation compositions and methods of use thereof for providing enhanced feeding efficiency and restoring a ruminant's self-generation of water soluble vitamins.
    Type: Application
    Filed: February 10, 2016
    Publication date: June 9, 2016
    Inventor: David R. Fuhr
  • Publication number: 20150108933
    Abstract: A method for operating a direct current (DC) motor is shown and described. The method includes generating a first pulse width modulated (PWM) signal having a first duty cycle, providing the first PWM signal as a PWM DC output for the DC motor, and adjusting the first duty cycle to control a speed of the DC motor. The method further includes sensing an electric current output to the motor using a current sensor and, when the sensed current exceeds a threshold, holding the PWM DC output off.
    Type: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventors: Russell W. Diamond, Gary A. Romanowich, David R. Fuhr
  • Patent number: 8947031
    Abstract: A method for operating a direct current (DC) motor is shown and described. The method includes using pulse width modulated (PWM) DC output to control the speed of the DC motor. The method further includes sensing current output to the motor. When the sensed current exceeds a threshold, the method holds the PWM DC output off.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: February 3, 2015
    Assignee: Johnson Controls Technology Company
    Inventors: Russell W. Diamond, Gary A. Romanowich, David R. Fuhr
  • Publication number: 20110195158
    Abstract: This invention relates to wildlife nutritional supplements providing enhanced immune-system bolstering effects. The invention further relates to wildlife nutritional supplements having improved stability and shelf-life and methods of making the same.
    Type: Application
    Filed: February 8, 2011
    Publication date: August 11, 2011
    Inventor: DAVID R. FUHR
  • Patent number: 6572903
    Abstract: The present invention is a wildlife nutritional supplement for free ranging ruminants including about 7.5-8.5% calcium, about 3.5% phosphorus, about 32-37% salt, at least one “B” series vitamin is selected from a group consisting of pantothenic acid, folic acid, riboflavin, niacin, thiamine, cobalamin, and pyridoxine hydrocholoride, about 16-19% sodium, about 0.15% magnesium, about 0.15% potassium, about 2.5% sulfur, about 1,200 PPM iron, about 20 PPM copper, about 105 PPM manganese, about 45 PPM zinc, about 5 PPM cobalt, about 1 PPM selenium, about 1 PPM iodine, about 50,000 IU/LB Vitamin A, about 20,000 IU/LB Vitamin D, about 50 IU/LB Vitamin E, about 134 MG/LB biotin, about 60 MG/LB ascorbic acid, oxytetracycline and fenbendazole.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: June 3, 2003
    Assignee: 4 Seasons Wildlife Nutrition, LLC
    Inventors: David R. Fuhr, David Hauser
  • Patent number: 5970997
    Abstract: An apparatus for effecting actuation of a positioning member and a method for commissioning the apparatus wherein the apparatus includes a controller coupled to a drive motor and adapted to receive an input signal and to apply positioning signals to the drive motor. The positioning signals selectively effect positioning of the positioning member and determine a first position and a second position of the positioning member. The method for commissioning the apparatus selectively includes performing an end stop determination sequence in response to an end stop determination signal, winding a bias member, and determining a range of rotation for the positioning member. The end stop determination sequence seeks to detect the presence of both a load and spring when rotating the positioning member and biasing member, respectively, in one of a first and second direction.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: October 26, 1999
    Assignee: Johnson Service Company
    Inventors: Hugh F. Hudson, Dennis J. Ulicny, David R. Fuhr, Kevin A. Weiss, David C. Ritmanich, Peter J. Klomberg