Patents Assigned to Seetru Ltd.
  • Liquid level sight gauge
    Patent number: 4587845
    Abstract: A liquid level sight gauge comprises at least one sight tube 10, 11, a scale 12 mounted adjacent such sight tube(s) and periscope means 13, 15, 16 including a reflective member 17 mounted on an optical carriage 16 movable along the sight tube and scale for viewing liquid levels within the sight tube over a predetermined metering range. Each sight tube, the scale, and the optical carriage are mounted within a substantially closed tubular casing. The sight tubes and scale are illuminated at least at the level of the optical carriage.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: May 13, 1986
    Assignee: Seetru Ltd.
    Inventor: Otto H. Varga