Solid state illuminator for bi-color ported water level gauges

Measuring and testing – Liquid level or depth gauge – With illumination

Reexamination Certificate

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Reexamination Certificate

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11056103

ABSTRACT:
A solid state illuminator and display are provided for bi-colored ported water level gauges suitable for use in high pressure steam drums or similar water/steam devices to facilitate making an accurate determination of water level in such devices. The illuminator includes an array of bi-colored solid state light emitting diodes (LEDs), as the light source, and a precision lens to focus the light provided from the LEDs through a gauge body and onto the view screen.

REFERENCES:
patent: 2024815 (1935-12-01), Blackburn
patent: 2115889 (1938-05-01), Steimel
patent: 2510729 (1950-06-01), Van Ham
patent: 3119268 (1964-01-01), Stanley
patent: 3128626 (1964-04-01), Faber
patent: 3187573 (1965-06-01), Goellner
patent: 4425794 (1984-01-01), Duesbury
patent: 4450722 (1984-05-01), Keyes, IV et al.
patent: 4633711 (1987-01-01), Hipple et al.
patent: 4733335 (1988-03-01), Serizawa et al.
patent: 4813759 (1989-03-01), Chappell
patent: 4836022 (1989-06-01), Zhang
patent: 4877668 (1989-10-01), Hinz et al.
patent: 5072616 (1991-12-01), Sherrick
patent: 5660461 (1997-08-01), Ignatius et al.
patent: 6033087 (2000-03-01), Shozo et al.
patent: 6043505 (2000-03-01), Ames et al.
patent: 7047806 (2006-05-01), Kowalski et al.
patent: 2005/0056091 (2005-03-01), Kowalski et al.
patent: 1 250 462 (1989-02-01), None
patent: 2 186 805 (1997-06-01), None
patent: 39 29 125 (1990-03-01), None
patent: 198 00 770 (1998-12-01), None
patent: 19800770 (1998-12-01), None
patent: 1374848 (1964-10-01), None
patent: 392882 (1933-05-01), None
patent: 836172 (1960-06-01), None
patent: 62044630 (1987-02-01), None
patent: 2003172651 (2003-06-01), None

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