Measuring and testing – Liquid level or depth gauge – Float
Reexamination Certificate
2007-04-17
2007-04-17
Raevis, Robert (Department: 2856)
Measuring and testing
Liquid level or depth gauge
Float
Reexamination Certificate
active
11231427
ABSTRACT:
An apparatus and methods of using the apparatus are disclosed. Preferably, the apparatus includes at least a fluid level detection portion communicating with a fulcrum that provides at least a first lobe and a second lobe, and a control portion responsive to the first lobe when the apparatus is operated in a first operating mode and responsive to the second lobe when the apparatus is operated in a second operating mode. The apparatus preferably further includes a counterbalance mechanism linked to the fluid level detection device, wherein the apparatus operates in the first mode when a first balance force is applied by the counterbalance mechanism to the fluid level detection device, and further operates in the second mode when a second balance force is applied by the counterbalance mechanism to the fluid level detection device.
REFERENCES:
patent: 4483367 (1984-11-01), Ross et al.
patent: 4700738 (1987-10-01), Frese et al.
patent: 4746776 (1988-05-01), Komaniak
patent: 5191912 (1993-03-01), McDaniel
patent: 5775877 (1998-07-01), Genz
patent: 5992448 (1999-11-01), Anderson et al.
patent: 6220566 (2001-04-01), Miller
patent: 6240955 (2001-06-01), Anderson et al.
patent: 6354323 (2002-03-01), Anderson
patent: 6497246 (2002-12-01), Nicewarner et al.
patent: 6591860 (2003-07-01), Weber et al.
patent: 6629627 (2003-10-01), Siegele et al.
patent: 6901796 (2005-06-01), Akagawa
patent: 6966334 (2005-11-01), Bolster
patent: 2001/0032507 (2001-10-01), Eck
Delaware Capital Formation Inc.
Fellers , Snider, et al.
Raevis Robert
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