Patents by Inventor Gidugu Ananda Ramadass

Gidugu Ananda Ramadass 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).

  • Device for measuring liquid level preferably measuring tide level in sea
    Patent number: 6360599
    Abstract: A device and process for measuring tide levels comprising a guide tube having its lower open end immersed below the lowest tide level, a transducer positioned substantially at the upper end of the guide tube for generation and reception of electrical and acoustical signals, a switching circuit for isolating the transmitting and receiving signals, and at least one branch tube provided near the upper portion of the guide tube. The length of the branch tube is determined by a formula that takes into account the wavelength and velocity of the sound signals, and the diameter of the guide tube is determined by a formula that takes into account the wavelength of the sound signals.
    Type: Grant
    Filed: August 25, 1999
    Date of Patent: March 26, 2002
    Assignee: National Institute of Ocean Technology Department of Ocean Development Govenment of India
    Inventors: Ardhendu Gajanan Pathak, Gidugu Ananda Ramadass