Measuring and testing – Specific gravity or density of liquid or solid – Multiple floats of graduated density
Reexamination Certificate
2006-12-14
2008-08-12
Williams, Hezron E. (Department: 2856)
Measuring and testing
Specific gravity or density of liquid or solid
Multiple floats of graduated density
C073S454000
Reexamination Certificate
active
07409861
ABSTRACT:
A concentration detector is adapted to detect the concentration of a liquid fuel in a container. The concentration detector comprises a rotating mechanism positioned underneath the level of the liquid fuel and having a rotational center. A first float having a specific gravity less than the specific gravity of the liquid fuel, a volume equivalent to “V” and a mass equivalent to “M”. The distance between the mass center of the first float and the rotational center is “L”. A second float connected with the first float and having a specific gravity less than the specific gravity of the liquid fuel, a volume equivalent to “V” and a mass equivalent to “r*M”. The distance between the mass center of the second float and the rotational center is “L. The mass center of the second float, the rotational center and the mass center of the first float constitute an included angle of 120°. A third float connected to the first float and the second float and having a specific gravity less than the specific gravity of the liquid fuel, a volume equivalent to “V” and a mass equivalent to “r2*M”. The distance between the mass center of the third float and the rotational center is “L. The mass center of the third float, the rotational center and the mass center of the second float constitute an included angle of 120°. Thereby the variation in the concentration of the liquid fuel is acquired by inspecting the change in the rotational direction of the rotating mechanism.
REFERENCES:
patent: 1701404 (1929-02-01), Dennis
patent: 2332807 (1943-10-01), Moore
patent: 2891403 (1959-06-01), Potter
patent: 3469447 (1969-09-01), Becker
patent: 4353253 (1982-10-01), Callahan
Chen Yi-Hsien
Chung Ya-Chien
Deng Feng-Yi
Tang Yu-Lin
Antig Technology Co., Ltd.
Fitzgerald John
Williams Hezron E.
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