Patents by Inventor Clark W. Dovell

Clark W. Dovell 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).

  • Depth regulating apparatus
    Patent number: 3961389
    Abstract: Apparatus for automatically controlling the mooring depth of a submerged yant body secured to an anchor by a mooring line contained within the anchor having a power supply, a first potentiometer preset to a desired mooring depth and variable with the payout of mooring line, a second potentiometer variable with ambient water pressure for sensing the depth of the anchor, and a null detector connected between the slidable taps of the potentiometers and a mooring line payout control system for actuating the payout control system if there is an unbalance therebetween in one, but only one, direction.
    Type: Grant
    Filed: September 9, 1969
    Date of Patent: June 8, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Clark W. Dovell, Frank Peregrim, Daniel R. Tolliver