Patents Represented by Attorney Charles Marks

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  • Water gun
    Patent number: 4022350
    Abstract: A toy water gun is provided with a battery driven motor and pump assembled with a chamber communicating with a water reservoir and a nozzle in the gun. When the motor and pump are energized, intake and exit valves operate alternately to determine a series of spurts of water from the chamber through the nozzle.
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: May 10, 1977
    Inventor: Alan B. Amron
  • Means for maintaining a painting against shrinkage and warping
    Patent number: 4006771
    Abstract: A plurality of turnbuckles are mounted upon a rigid base and affixed to a painting mounted upon a frame. The turnbuckles are disposed at angular intervals with respect to each other and are adjustable to maintain the painting in a predetermined position.
    Type: Grant
    Filed: July 21, 1976
    Date of Patent: February 8, 1977
    Inventor: Hermann Spurkel