Patents by Inventor Raymond J. Merk

Raymond J. Merk 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).

  • Densifier for powder coating welded cans
    Patent number: 6227769
    Abstract: Methods and apparatus are disclosed for spraying powder into the interior of welded hollow can bodies from a spray gun mounted to the welding arm of a can forming machine. The spray gun can either apply a stripe of highly charged powder on the welded seam areas of hollow can bodies, or can simultaneously apply a coating of powder having a first thickness on the longitudinally welded seam areas and a second thickness less than the first thickness on the remainder of the interior surface. Air is vented off from the powder flow being transported through the welding arm so that the powder to air ratio is increased. Air is introduced at the downstream end of the welding arm to provide a suction force to help draw the powder flow through the welding arm and to increase the velocity of the powder flow for better tribo charging of the powder in the gun and to improve spray pattern stability.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: May 8, 2001
    Assignee: Nordson Corporation
    Inventors: Timothy Edward Wilson, Masafumi Matsunaga, Wataru Kakuta, Raymond J. Merk, Ronald E. Niemiec, Laurence B. Saidman, Gerald W. Crum, William L. Palmer
  • Apparatus for powder coating welding cans
    Patent number: 5997643
    Abstract: Methods and apparatus are disclosed for spraying powder into the interior of welded hollow can bodies from a spray gun mounted to the welding arm of a can forming machine. The spray gun can either apply a stripe of highly charged powder on the welded seam areas of hollow can bodies, or can simultaneously apply a coating of powder having a first thickness on the longitudinally welded seam areas and a second thickness less than the first thickness on the remainder of the interior surface. Air is vented off from the powder flow being transported through the welding arm so that the powder to air ratio is increased. Air is introduced at the downstream end of the welding arm to provide a suction force to help draw the powder flow through the welding arm and to increase the velocity of the powder flow for better tribo charging of the powder in the gun and to improve spray pattern stability.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: December 7, 1999
    Assignee: Nordson Corporation
    Inventors: Timothy Edward Wilson, Masafumi Matsunaga, Wataru Kakuta, Raymond J. Merk, Ronald E. Niemiec, Laurence B. Saidman, Gerald W. Crum, William L. Palmer
  • Apparatus for powder coating welded cans
    Patent number: 5725670
    Abstract: Methods and apparatus are disclosed for spraying powder into the interior of welded hollow can bodies from a spray gun mounted to the welding arm of a can forming machine. The spray gun can either apply a stripe of highly charged powder on the welded seam areas of hollow can bodies, or can simultaneously apply a coating of powder having a first thickness on the longitudinally welded seam areas and a second thickness less than the first thickness on the remainder of the interior surface. Air is vented off from the powder flow being transported through the welding arm so that the powder to air ratio is increased. Air is introduced at the downstream end of the welding arm to provide a suction force to help draw the powder flow through the welding arm and to increase the velocity of the powder flow for better tribo charging of the powder in the gun and to improve spray pattern stability.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: March 10, 1998
    Assignee: Nordson Corporation
    Inventors: Timothy Edward Wilson, Masafumi Matsunaga, Wataru Kakuta, Raymond J. Merk, Ronald E. Niemiec, Laurence B. Saidman, Gerald W. Crum, William L. Palmer