Patents by Inventor John A. Mohr

John A. Mohr 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).

  • Fire fighting system
    Patent number: 8291990
    Abstract: A fire fighting system for fighting forest and brush fires under dry, hot and windy conditions which includes a jet engine for generating a high speed air stream, a water source for supplying water to a cooling system which lowers the water temperature to between forty and fifty degrees Fahrenheit, a nozzle for injecting cold water into the air steam and a filter which provides very fine particles of cold water within the stream. The stream of cold water is directed to a forest or brush fire dropping the temperature of the fire which eventually extinguishes the fire.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: October 23, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: John A. Mohr
  • Adaptive crosspole technique
    Patent number: 8060007
    Abstract: An RF signal processing device which includes a countermeasure set connected to the processing device. The RF signal processing device shifts an incoming RF signal by ninety degrees and combines the phase shifted RF signal with RF jamming signals from a jammer. The processing device next transmits the RF signal including the RF jamming signals from the jammer.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: November 15, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: John A. Mohr
  • Adaptive Crosspole Technique
    Publication number: 20100056040
    Abstract: An RF signal processing device which includes a countermeasure set connected to the processing device. The RF signal processing device shifts an incoming RF signal by ninety degrees and combines the phase shifted RF signal with RF jamming signals from a jammer. The processing device next transmits the RF signal including the RF jamming signals from the jammer.
    Type: Application
    Filed: August 27, 2008
    Publication date: March 4, 2010
    Inventor: John A. Mohr
  • Thermal ink jet print device having phase change cooling
    Patent number: 5272491
    Abstract: A thermal ink jet print device having a phase change material, a solid or fluid, disposed in heat exchange proximity to the thermal ink jet printhead to absorb printhead heat energy by changing physical state at a printhead temperature below that at which unacceptable printing takes place and at a rate commensurate with the rate of heat energy input.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: December 21, 1993
    Assignee: Hewlett-Packard Company
    Inventors: Stuart D. Asakawa, John A. Mohr, John L. Stoffel, William D. Kappele, Bruce E. Mueller, Gerold G. Firl
  • Capillary reservoir binary ink level sensor
    Patent number: 5079570
    Abstract: An ink level sensor (18, 18', 18") is provided for detecting the level of ink in an ink cartridge (10) containing a capillary reservoir (14), such as foam, therein. The ink level sensor is a binary fluidic indicator, which provides both a human and machine readable indication of the level of the ink. A plurality of embodiments are described, including a two-port sensor (20), a one-port sensor (22), and a pair of fluidically-connected needles of different length (24).
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: January 7, 1992
    Assignee: Hewlett-Packard Company
    Inventors: John A. Mohr, Michael B. Lloyd, Scott W. Hock, Mindy A. Hamlin