Patents by Inventor John Melnichuk

John Melnichuk 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: 6363767
    Abstract: A system for forming sheet metal (118) is disclosed. The system comprises a support plate (102) that is coupled to a base (108) and has at least one side plate (104) adjacent thereto. A clamping mechanism (200) fixes the side plate (104) to the support plate (102) so sheet metal (118) can be formed.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: April 2, 2002
    Assignee: Northrop Grumman Corporation
    Inventors: John M. Papazian, Jerrell A. Nardiello, Robert C. Schwarz, John Melnichuk
  • Patent number: 6209380
    Abstract: Tooling apparatus for three-dimensionally forming a honeycomb core article includes a die having an array of elongated mutually parallel translating pins, each having a pin tube terminating at a tip end and arranged in a matrix for longitudinal movement between retracted and extended positions. The tip ends of the array of translating pins are engageable with an end surface of the honeycomb core article when in the extended position. Each tip end includes a pin tip assembly including an elongated pin tip member having an outwardly projecting bearing surface of shape conformable material on which is mounted a protective thrust pad, an opposed bottom surface, and an outer peripheral surface extending between the bearing surface and the bottom surface. A cup-shaped retainer having a base and an upstanding wall with an outer peripheral surface is provided for mounting engagement with the tip end of each pin tube and has an internal recess with a base surface and an internal peripheral surface.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: April 3, 2001
    Assignee: Northrop Grumman Corporation
    Inventors: John M. Papazian, Edwin Gerard Haas, Robert Charles Schwarz, Jerrell A. Nardiello, John Melnichuk