Patents by Inventor Donald M. Johnson

Donald M. 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: 10563773
    Abstract: A fluid system coupling includes an adaptor, a coupler, and an actuation mechanism. The adaptor has an adaptor poppet that is movable between an open position and a closed position. The adaptor poppet has a poppet face that is substantially planar and devoid of any recesses. The coupler has a coupler poppet that is movable between an open position and a closed position. The coupler poppet has a poppet face that is substantially planar and avoid of any recesses. The actuation mechanism selectively moves the poppets from the closed positions to the open positions.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: February 18, 2020
    Assignee: OPW-ENGINEERED SYSTEMS, INC.
    Inventors: Joseph P. Roth, David Morrow, Donald M. Johnson
  • Publication number: 20170335974
    Abstract: A fluid system coupling includes an adaptor, a coupler, and an actuation mechanism. The adaptor has an adaptor poppet that is movable between an open position and a closed position. The adaptor poppet has a poppet face that is substantially planar and devoid of any recesses. The coupler has a coupler poppet that is movable between an open position and a closed position. The coupler poppet has a poppet face that is substantially planar and avoid of any recesses. The actuation mechanism selectively moves the poppets from the closed positions to the open positions.
    Type: Application
    Filed: May 18, 2017
    Publication date: November 23, 2017
    Inventors: Joseph P. Roth, David Morrow, Donald M. Johnson
  • Patent number: 6372970
    Abstract: An acoustical stringed instrument includes a body, which has a top member having a generally flat forward part. The body also has a back member which includes a side wall with an upper section and a lower section and an inner side wall surface generally perpendicular to the forward part of the top member. A neck member of the instrument has an elongated upper portion extending upwardly from the upper section of the body side wall. Additionally, the neck member has an elongated lower portion extending through the interior of the body between the upper section and the lower section of the side wall and spaced rearwardly of the forward part of the top member. The elongated lower neck portion has an upper mounting means fixed to the inner side wall surface at the upper section of the body side wall, and a lower mounting means fixed to the inner side wall surface at the lower section of the body side wall.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: April 16, 2002
    Assignee: Kaman Music Corporation
    Inventors: Robert H. Saunders, Jr., Nicholas Ladutko, Donald M. Johnson, Frank I. Untermyer, William P. Vassilopoulos, Clifford Gunsallus, William Hudak
  • Patent number: 6294718
    Abstract: A top member for the body of an acoustical stringed instrument includes a forward part having an interior portion spaced inwardly from the side wall of the body after the top member has been assembled to the body, the interior portion having a pair of composite material layers with a core layer bonded therebetween. The forward part further has a core free flex edge portion which borders the outer periphery of the interior portion, and is made by having the pair of composite material layers bonded in contact with each other. A skirt projects rearwardly from the rear surface of the flex edge portion and extends along the edge of the flex edge portion. When its top member is assembled with the body, the skirt slidably fits over the sidewall of the body.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: September 25, 2001
    Assignee: Kaman Music Corporation
    Inventors: Robert H. Saunders, Jr., Nicholas Ladutko, Donald M. Johnson, Frank I. Untermyer, William P. Vassilopoulos, Clifford Gunsallus, William Hudak
  • Patent number: 5452749
    Abstract: A liquid anticorrosion composition adapted for application to ferrous tubular goods is provided comprising an aqueous solution of cyclohexylammonium benzoate and a benzoate salt, which is preferably prepared by reacting cyclohexylamine with excess sodium benzoate in an aqueous alcohol solvent. A sealable thread protector end cap which protects the precisely machined threads from physical abuse and which isolates or seals from the environment the corrosion inhibitor composition is also provided.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: September 26, 1995
    Assignee: Centrax International Corp.
    Inventors: Donald M. Johnson, John S. Ippolito
  • Patent number: 5352383
    Abstract: A liquid anticorrosion composition adapted for application to ferrous tubular goods is provided comprising an aqueous solution of cyclohexylammonium benzoate and a benzoate salt, which is preferably prepared by reacting cyclohexylamine with excess sodium benzoate in an aqueous alcohol solvent. A sealable thread protector end cap which protects the precisely machined threads from physical abuse and which isolates or seals from the environment the corrosion inhibitor composition is also provided.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: October 4, 1994
    Assignee: Centrax International Corp.
    Inventors: Donald M. Johnson, John S. Ippolito
  • Patent number: 4219025
    Abstract: A surgical cutting instrument includes an electrically heated cutting edge and a power supply system for maintaining the cutting edge at a constant high temperature for sterilizing the blade, cutting tissue and cauterizing the incised tissue to reduce hemorage from the cut surfaces of the tissues (hemostasis).
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: August 26, 1980
    Assignee: Corning Glass Works
    Inventor: Donald M. Johnson