Patents by Inventor Rudolf H. Wandl

Rudolf H. Wandl 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: 4290706
    Abstract: Cylindrical containers for paint or the like of the type having a hollow container body, a cap, a brush attached to the cap, and an agitator for mixing the contents of the container is improved by constructing the agitator as a tubular hollow member that is mounted within the container so as to surround the brush attached to the cap and be axially displaceable relative thereto, the agitator member having ribs that are fashioned in the manner of blades of a fan wheel and are uniformly distributed about the periphery of the agitator member with its outer edges located on an imaginary cylinder, the diameter of which is slightly smaller than the inner diameter of the container body. According to preferred embodiments, the ribs of the agitator can either be twisted helically with respect to the longitudinal axis of the hollow member or can be straight blade vanes inclined at an angle to the longitudinal axis of the agitator.
    Type: Grant
    Filed: January 30, 1980
    Date of Patent: September 22, 1981
    Assignee: Kurt Vogelsang GmbH
    Inventor: Rudolf H. Wandl
  • Patent number: 4135638
    Abstract: A safety cap for spray cans with the cap including an inner slotted cap part and an outer cap part surrounding the inner slotted cap part and being provided with a window located radially opposite a slot of the inner slotted cap part. A stop or limiting device is provided behind the slot of the inner slotted cap part for preventing a tool inserted through the window from contacting a valve body of the spray can.
    Type: Grant
    Filed: April 19, 1978
    Date of Patent: January 23, 1979
    Assignee: Kurt Vogelsang GmbH
    Inventor: Rudolf H. Wandl