Patents by Inventor Ralph Warkentin

Ralph Warkentin 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: 4200321
    Abstract: An improved sanitation device for the collection of animal feces is provided. The device includes a longitudinal frame, a handle attached to one end of the frame, and a receptacle attached to the other end of the frame and having a first and second open end. A scoop arm is pivotally attached to an intermediate portion of the frame. A scoop is attached to the scoop arm and constructed and oriented for engagement and registry with an open end of the receptacle when the device is in a closed position. A spring between the scoop arm and the frame forcibly urges the two apart. A trigger is provided for actuating the scoop arm and is held by a trigger retainer at a convenient position relative to the handle so that the handle may be grasped by a hand while engaging the trigger with the fingers. A disposable receptacle detachably engages the second open end of the intermediate receptacle.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: April 29, 1980
    Inventor: Ralph Warkentin