Patents by Inventor Alan D. Bremers

Alan D. Bremers 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).

  • Control valve with retained pin for easy valve trim maintenance
    Patent number: 6991218
    Abstract: A process control valve includes a valve stem, a valve plug. The valve stem and the valve plug are attached to one another by an arrangement that includes a locking pin that passes through substantially aligned bores in the valve stem and the valve plug. The locking pin is positively retained mechanically and prevented from extending outside of the bores in the valve stem and the valve plug.
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: January 31, 2006
    Assignee: Fisher Controls International LLc.
    Inventors: Michel K. Lovell, Alan D. Bremers, Michael M. Anderson, Mark D. Stiehl
  • Control valve with retained pin for easy valve trim maintenance
    Publication number: 20040104374
    Abstract: A process control valve includes a valve stem, a valve plug. The valve stem and the valve plug are attached to one another by an arrangement that includes a locking pin that passes through substantially aligned bores in the valve stem and the valve plug. The locking pin is positively retained mechanically and prevented from extending outside of the bores in the valve stem and the valve plug.
    Type: Application
    Filed: August 19, 2003
    Publication date: June 3, 2004
    Inventors: Michel K. Lovell, Alan D. Bremers, Michael M. Anderson, Mark D. Stiehl
  • Bonnet nut with improved safety characteristics
    Patent number: 4986300
    Abstract: A valve assembly includes a bonnet that is captivated in a valve body stem mount by means of a threaded bonnet nut. A pair of opposed pry holes are formed in the bonnet at a point above the top of the fully seated bonnet nut. Loosening of the bonnet nut enables a bonnet that is stuck in the body stem mount to be pried loose with a pry bar inserted in one or both of the pry holes and levered against the top of the bonnet nut. The bonnet holes also provide a visual indication of movement of the bonnet and whether there is pressure in the valve body.
    Type: Grant
    Filed: June 6, 1990
    Date of Patent: January 22, 1991
    Assignee: Fisher Controls International, Inc.
    Inventors: Alan D. Bremers, Melvin L. Osgood