Patents by Inventor Bernhard Lochmann

Bernhard Lochmann 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).

  • Galling resistant flex-seat for gate valves
    Patent number: 5346179
    Abstract: A valve seat member in a gate valve has a circular or crescent shaped slot cut on the inside diameter parallel to and underneath the seat surface to create a seat with increased flexibility at areas on the seat surface where high compressive stress during valve operation is observed. As a result galling of the gate is reduced, and valve reliability and life are increased.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: September 13, 1994
    Assignee: FMC Corporation
    Inventor: Bernhard Lochmann
  • Choke valve safety device
    Patent number: 5065787
    Abstract: A choke valve safety device to prevent unthreading of the choke bonnet nut until internal pressure has been vented, comprising a U-shaped bracket that fits over a tool-engaging portion of the nut, and a bracket support securable to the choke body only in the correct position.
    Type: Grant
    Filed: May 3, 1991
    Date of Patent: November 19, 1991
    Assignee: FMC Corporation
    Inventor: Bernhard Lochmann