Patents Assigned to NSS Industries
  • Cold headed center vacuum drill bit
    Patent number: 5297643
    Abstract: A drill bit for drilling holes in a work surface including a hard wear-resistant insert and a metal body including a top working surface of an irregular surface configuration having a slot for retaining the hard wear-resistant insert. The body having a metal grain structure substantially parallel with the contour of the body. In a preferred embodiment the body is formed by cold-heading.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: March 29, 1994
    Assignees: Kennametal Inc., NSS Industries
    Inventors: Robert H. Montgomery, Jr., Daniel C. Sheirer, James E. Elam, Paul E. Ewing
  • Sucker rod assembly
    Patent number: 4406561
    Abstract: A sucker rod assembly is disclosed for use in oil well pumping apparatus. The assembly comprises a rod with roll-formed threads on the end thereof and a rod-end fitting with a threaded socket for receiving the threaded rod. An unthreaded portion on the outer end of the socket is extruded into surface engagement with the unthreaded surface of the rod to seal and mechanically interlock the rod and fitting.
    Type: Grant
    Filed: September 2, 1981
    Date of Patent: September 27, 1983
    Assignee: NSS Industries
    Inventor: Peter D. Ewing