Patents by Inventor Karl H. Bergmann

Karl H. Bergmann 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: 5011086
    Abstract: A spray coating device includes a ring (14) surrounding a spray device (4) radially spaced and supporting at least one electrode (28). Gas flowing across the ring (14) and electrode transmits electrical charges from the electrodes to particles of atomized coating material, downstream from a spray head (6) of the spray device (4). The electrical charging of the coating material is considerably increased thereby.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: April 30, 1991
    Assignee: Ransburg Corporation
    Inventors: Adolf H. Sonnleitner, Karl H. Bergmann
  • Patent number: 4103603
    Abstract: An automatic coffee brewing device comprising a structure having a cavity therein providing a reservoir for receiving water, a water heating and pumping means positioned under the reservoir, and a connecting means for delivering water from the reservoir to the heating and pumping means. A cover member is received over and enclosing a top opening of the structure, and may include or have a separate water dispensing means with said bottom and top walls enclosing a chamber therein, said dispensing means also having a first opening over the reservoir of the structure for removably receiving therethrough the top end of the riser tube of the pump, a second opening for providing a water dispensing spout, and a third opening over the reservoir of the structure for venting and returning heated fluid to the reservoir.
    Type: Grant
    Filed: October 31, 1975
    Date of Patent: August 1, 1978
    Assignee: Melitta, Inc.
    Inventors: Karl H. Bergmann, Harvey Levine
  • Patent number: 3987717
    Abstract: In an automatic coffee brewing machine of the type having container means for receiving cold water at the start of a brewing operation and dispensing hot water at the end of the brewing operation, a control means comprising heating means activated to its closed position when sensing a temperature below a predetermined first value resulting when said container means receives cold water at the start of a brewing operation and being activated to its open position when it senses a temperature above a predetermined second value higher than said first value, electrical connecting means joining said switch means with said heating means, and a heating element for heating said switch means when the switch means is in its open position, so that when said switch is in its closed position at the start of a brewing operation the heating means is fully energized to heat the container means and the water contained therein until said switch means is activated to its open position when the temperature of the container exceeds
    Type: Grant
    Filed: October 10, 1975
    Date of Patent: October 26, 1976
    Assignee: Melitta, Inc.
    Inventors: Karl H. Bergmann, Harvey Levine
  • Patent number: D243308
    Type: Grant
    Filed: April 16, 1975
    Date of Patent: February 8, 1977
    Inventors: Wolfgang Harms, Karl H. Bergmann
  • Patent number: D246410
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: November 22, 1977
    Assignee: Melitta, Inc.
    Inventors: Wolfgang Harms, Marshall B. Johnson, Karl H. Bergmann, Richard G. Gelak