Patents Assigned to Driomi, Inc.
  • System for detecting, indicating and regulating the level of semi-solid matter in a reservoir
    Patent number: 4121094
    Abstract: An electronic system for determining, indicating and regulating the level of semi-solid matter, such as sludge, in a fluid medium. The system produces and directs ultrasonic signals toward the matter, and the reflected signals are used to compute signal transit time and thus indicate incremental sludge levels. An output signal is produced when the matter reaches a preset level, to activate a pump and thus regulate the sludge level.
    Type: Grant
    Filed: February 16, 1977
    Date of Patent: October 17, 1978
    Assignee: Driomi, Inc.
    Inventors: Ronald J. DiVito, Howard A. Steck