Patents by Inventor Daniel J. Barnes

Daniel J. Barnes 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).

  • Cylinder head for internal combustion engine
    Patent number: 12215650
    Abstract: A cylinder head includes novel designs for undercuts, contours of the outer enclosure, coolant jackets, and other cavities within an outer enclosure of the cylinder head. The cylinder head design enables the reduction of weight of the head while maintaining structural integrity of the head, and improves control of temperatures in intake side and exhaust side zones of the heads to improve operational efficiency of the engine. A method is provided for additive manufacturing of the cylinder head including the disclosed designs.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: February 4, 2025
    Assignee: Cummins Inc.
    Inventors: Robert Earl Hoye, Jeffrey D. Jones, Daniel J. Mohr, David M. Barnes, Timothy Shipp
  • Compatible 4-2-4 encoding-decoding system
    Patent number: 3958085
    Abstract: A four channel stereophonic sound system requiring only two transmission channels and two audio amplifiers is disclosed wherein two different linear combinations of all four original discrete signals are recorded or transmitted, amplified and subsequently decoded in a passive network interconnecting the four output speaker system.
    Type: Grant
    Filed: May 6, 1974
    Date of Patent: May 18, 1976
    Assignee: The Magnavox Company
    Inventors: Ronald O. Barber, Daniel J. Barnes