Measuring and testing – Liquid level or depth gauge – Float
Reexamination Certificate
2006-01-10
2006-01-10
Williams, Hezron (Department: 2856)
Measuring and testing
Liquid level or depth gauge
Float
C073S319000
Reexamination Certificate
active
06983655
ABSTRACT:
A vehicle cesspool level sensor includes a mounting base, a stainless steel detection tube welded to the bottom side of the mounting base to hold a detection circuit on the inside, an end cap welded to the bottom end of the stainless steel detection tube, a float axially movably mounted the detection tube and movable, the float having two magnets symmetrically disposed at two sides and adapted to induce the detection circuit, a stainless steel strainer fastened with the top end to an endless locating flange at the bottom side of the mounting base, and a strainer cover capped on the bottom end of the stainless steel strainer and fastened to the end cap with a screw.
REFERENCES:
patent: 4480469 (1984-11-01), Tice
patent: 5718146 (1998-02-01), Liang
patent: 6098457 (2000-08-01), Poole
patent: 6185994 (2001-02-01), Liang
Liang Chia-Fu
Liang Chia-Hung
Rosenberg , Klein & Lee
West Paul M.
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