Gauge and method for indicating a level of a liquid in a tank

Details Gauge and method for indicating a level of a liquid in a tank Gauge and method for indicating a level of a liquid in a tank

2005-11-29

2005-11-29

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

With illumination

C073S001730, C340S619000

Reexamination Certificate

active

06968739

ABSTRACT:
A gauge is disclosed for indicating a level of a liquid in a tank including a display device and a control unit coupled thereto. The display device includes multiple light-emitting elements. The control unit receives a liquid level signal, measures a magnitude of the liquid level signal, and activates a number of the light-emitting elements dependent upon the magnitude. In one embodiment the control unit receives a reset signal and performs a calibration routine in response. The gauge may include a housing and a cap portion attached to the housing. The display device and the control unit may be positioned within the housing. The gauge may include conveying means (e.g., an array of light pipes) for conveying light emitted by each of the light-emitting elements through an outer side surface of the cap portion. A method is described for indicating a level of a liquid in a tank.

REFERENCES:
patent: 4821697 (1989-04-01), McDougal
patent: 4840137 (1989-06-01), Beauvals et al.
patent: RE34601 (1994-05-01), Hochstein
patent: D402220 (1998-12-01), Clifton
patent: 5842763 (1998-12-01), Lakosky
patent: 5859365 (1999-01-01), Kataoka et al.
patent: 6073487 (2000-06-01), Dawson
patent: 6167920 (2001-01-01), Enge
patent: 6173609 (2001-01-01), Modlin et al.
patent: 6658933 (2003-12-01), Allegre et al.
patent: 2002/0194911 (2002-12-01), Allegre et al.

Affiliated with

Also associated with

Rating

Gauge and method for indicating a level of a liquid in a tank does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gauge and method for indicating a level of a liquid in a tank, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gauge and method for indicating a level of a liquid in a tank will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3488581