Fuel oil amount indicator of measuring apparatus

Details Fuel oil amount indicator of measuring apparatus Fuel oil amount indicator of measuring apparatus

2006-04-05

2009-02-10

Williams, Hezron (Department: 2856)

Measuring and testing

Volumetric content measuring

C362S210000

Reexamination Certificate

active

07487672

ABSTRACT:
There is provided a fuel oil amount indicator of a measuring apparatus in which a lifetime of the indicator can be prolonged, maintenance work can be omitted, and visibility can always be improved. In the indicator of the invention, a plurality of light emitting elements are arrayed in a matrix form, and as the light emitting elements, high-luminance LEDs are used. An outside light sensor provided in the vicinity of the indicator detects brightness of outside light, and a light emission intensity of the light emitting elements is changed in accordance with the thus detected brightness. The light emitting elements have a plurality of luminous colors predetermined to correspond to a type of fuel oil. The indicator is provided with inclination means for inclining a display surface in response to an operation of an angle adjustment operating portion. The indicator is further provided with a diffusion plate for diffusing light to a front face of the light emitting elements.

REFERENCES:
patent: 5819454 (1998-10-01), Rosenitsch
patent: 4428542 (1996-02-01), None
patent: WO 0049332 (2000-08-01), None
patent: 03072392 (1991-03-01), None
patent: 06324066 (1994-11-01), None
patent: 19806286 (1998-08-01), None
patent: 2000329562 (2000-11-01), None
patent: 2001-242798 (2001-09-01), None
patent: WO 03010739 (2003-02-01), None

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