Patents by Inventor Charles D. Angus

Charles D. Angus 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).

  • Trolling device with parameter detecting means for controlling the device
    Patent number: 3978811
    Abstract: A trolling device for movement through a fluid includes a movable element and control apparatus for selectively stopping the movable element to control the movement of the trolling device through a fluid according to a detected physical parameter. In one embodiment, the movable element comprises a paddle wheel and the control apparatus includes a bellows which stops the wheel causing the device to dive when trolled through a fluid such as water above a predetermined depth. When below a predetermined depth, the wheel is allowed to freewheel permitting the device to ascend.
    Type: Grant
    Filed: March 17, 1975
    Date of Patent: September 7, 1976
    Inventors: Charles D. Angus, John C. Angus