Patents by Inventor Doris Van Mullen

Doris Van Mullen 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).

  • Handle for a trailer ball-mount
    Patent number: 5415445
    Abstract: A gripping device provided with handles is adapted to engage the ball of a conventional trailer hitch as a convenience in handling the hitch when it is removed from the towing vehicle. The preferred form of the device provides a clam shell-type grasping assembly that is manipulated by handles having overlapped portions that together form the handle. These overlapped portions are locked releasably against separation, and accommodation is also provided for receiving a padlock maintaining the closure of the clam shell components whenever this becomes desirable. A simplified version of the device is formed by a piece of bent rod having portions providing the handle and also for gripping the ball.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: May 16, 1995
    Inventors: Daniel Van Mullen, Doris Van Mullen
  • Handle for a trailer ball-mount
    Patent number: 5350209
    Abstract: A gripping device provided with handles is adapted to engage the ball of a conventional trailer hitch as a convenience in handling the hitch when it is removed from the towing vehicle. The preferred form of the device provides a clam shell-type grasping assembly that is manipulated by handles having overlapped portions that together form the handle. These overlapped portions are locked releasably against separation, and accommodation is also provided for receiving a padlock maintaining the closure of the clam shell components whenever this becomes desirable. A simplified version of the device is formed by a piece of bent rod having portions providing the handle and also for gripping the ball.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: September 27, 1994
    Inventors: Daniel Van Mullen, Doris Van Mullen