Liquid level sensor

Details Liquid level sensor Liquid level sensor

2007-05-01

2009-12-22

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

C073S299000

Reexamination Certificate

active

07634944

ABSTRACT:
A liquid level sensor system actuated by a column pressure includes a hollow member having a distal open end adapted to be positioned into a liquid reservoir to a depth below a liquid surface level, and a sensor head unit. The sensor head unit is responsive to the column pressure to provide an indication of a liquid level in the reservoir.

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Notification of Transmittal of the International Search Report and the Written Opinion of the International Searching Authority, or the Declaration—Jun. 18, 2008—PCT/US2008/002767.

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