Patents by Inventor Walter Duering

Walter Duering 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: 4705181
    Abstract: A child-resistant safety cap for a container for liquids such as strong cleaners has an inner cap and an outer cap selectively engagable by teeth on the caps requiring axial pressure on the outer cap to engage and threadably loosen the inner cap from a neck of the container. The inner cap includes a protruding plug member that extends into a free end of a nozzle on the container, spaced from the threaded part of the container neck. Cylindrical inner surfaces of the outer cap conform to outer surfaces of the inner cap, the inner and outer caps remaining closely aligned with respect to the container neck. Complementary structure between the inner cap and the nozzle engage when the inner cap is fully tightened. The safety cap closes a container having an S-shaped bend accumulating a charge of liquid in a trap in the bend, the nozzle having a rearward conduit part reaching into the trap.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: November 10, 1987
    Assignee: Kiwi Brands, Inc.
    Inventors: Peter A. Burke, Walter Duering, Martin Gut
  • Patent number: 4437587
    Abstract: A squeeze bottle is internally provided with a partition wall (2) forming an overflow edge (3) for producing a liquid stream which may be directed arbitrarily in any desired direction, especially for cleaning toilet bowls. A bottle mouth (5) is connected to the smaller chamber (4) separated by the partition wall (2). An immersion pipe (17) projects to the bottom of the chamber (4) and determines the direction of spray. This direction assumes an angle of about 40.degree. to the longitudinal central axis (7) of the bottle (1). By tilting the bottle, the chamber (4) may be refilled with the liquid present in the main part of the bottle (1).
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: March 20, 1984
    Assignee: Duering AG
    Inventor: Walter Duering
  • Patent number: D270518
    Type: Grant
    Filed: July 31, 1981
    Date of Patent: September 13, 1983
    Assignee: During AG
    Inventor: Walter Duering