Patents by Inventor Ewing A. Johnson

Ewing 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: 9302131
    Abstract: The present invention regards a method and system for securing a discharge valve to a water line of a fire suppression system with multiple t-connections. The apparatus includes a plate, a chain, a plurality of eyehooks and a plurality of eyehook nuts. The plate has a perimeter and a central aperture sized to receive an elongated cylinder of a hose fitting of a discharge valve. The plate further has a plurality of eyehook apertures along its perimeter, with each eyehook aperture sized to receive the threaded post of an eyehook. The plate is positioned about the elongated cylinder of the discharge valve, through said central aperture, and the chains are positioned about the water line and affixed to the plate by means of eyehooks and eyehook nuts. The chain has a length sufficient to be positioned about the water line and received by the eyehooks so that plate is securely positioned along the elongated cylinder below the discharge valve nut.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: April 5, 2016
    Inventor: Ewing Johnson
  • Publication number: 20150047859
    Abstract: The present invention regards a method and system for securing a discharge valve to a water line of a fire suppression system with multiple t-connections. The apparatus includes a plate, a chain, a plurality of eyehooks and a plurality of eyehook nuts. The plate has a perimeter and a central aperture sized to receive an elongated cylinder of a hose fitting of a discharge valve. The plate further has a plurality of eyehook apertures along its perimeter, with each eyehook aperture sized to receive the threaded post of an eyehook. The plate is positioned about the elongated cylinder of the discharge valve, through said central aperture, and the chains are positioned about the water line and affixed to the plate by means of eyehooks and eyehook nuts. The chain has a length sufficient to be positioned about the water line and received by the eyehooks so that plate is securely positioned along the elongated cylinder below the discharge valve nut.
    Type: Application
    Filed: August 15, 2014
    Publication date: February 19, 2015
    Inventor: Ewing Johnson
  • Patent number: 4704135
    Abstract: An apparatus is provided for converting coal to gas, liquid and solid products. The coal is subjected to a pyrolysis reaction at a temperature of at least about 260.degree. C. in the presence of a hydrogen-containing gas, and the resultant solid residue subjected to a gasification reaction with oxygen and steam at a temperature of at least about 482.degree. C. thereby generating the necessary hydrogen-containing gas for the pyrolysis reaction and producing a solid product. Heat generated in the exothermic gasification reaction is transferred to the pyrolysis reaction, so the apparatus does not require any external source of heat except for means (88) to control the temperature of the gases passing to the pyrolysis reaction chamber. The gaseous fraction generated in the pyrolysis reaction is cooled to produce liquid and gas products, preferably after having first been subjected to a Fischer-Tropsch reaction.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: November 3, 1987
    Assignees: Jack I. Bonasso, James T. Harper
    Inventors: Jack I. Bonasso, James T. Harper, Ewing A. Johnson
  • Patent number: 4453122
    Abstract: A voltage or current balancing control for supplying a balanced three-phase alternating current supply to an electrical three-phase load. Three controllable full wave semiconductor gates respectively feed one phase of a three-phase alternating current supply to the electrical load. The semiconductor gates are adapted to controllably adjust the voltage or current of a phase of the supply in accordance with a gate control signal to be applied thereto. A comparator circuit is connected to receive the three-phase alternating current supply and is adapted to compare either the voltage or current characteristics, or both (power) of each phase to determine an unbalanced condition therebetween which is analyzed by an analog or digital computer, which accordingly supplies gate control signals to the semiconductor gates respectively to independently control them in accordance with the unbalanced condition to adjust the voltage and/or current of all three phases of the supply to an equal or balanced condition.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: June 5, 1984
    Inventors: Ewing A. Johnson, Paul E. Straight