Fluid level detector

Details Fluid level detector Fluid level detector

2008-04-22

2008-04-22

Williams, Hezron (Department: 2856)

Measuring and testing

Liquid level or depth gauge

C073S29000R, C367S093000, C367S908000

Reexamination Certificate

active

07360417

ABSTRACT:
A fluid detector for determining a presence of a fluid within a container includes a piezoelectric element that outputs a first ultrasonic signal in response to an input electrical signal and a lens with an upper portion and a lower portion. The piezoelectric element is coupled to the upper portion of the lens so that, when the lens is disposed adjacent the outer surface of the wall such that the lens is intermediate the piezoelectric element and the wall, the lens focuses the first ultrasonic signal toward the wall so that the first ultrasonic signal enters the wall.

REFERENCES:
patent: 2990543 (1961-06-01), Rod
patent: 3693445 (1972-09-01), Johnson
patent: 4144517 (1979-03-01), Baumoel
patent: 4183249 (1980-01-01), Anderson
patent: 4280126 (1981-07-01), White
patent: 4531406 (1985-07-01), Fritz
patent: 4580448 (1986-04-01), Skrgatic
patent: 4630245 (1986-12-01), Dam
patent: 4815323 (1989-03-01), Ellinger et al.
patent: 4901245 (1990-02-01), Olson et al.
patent: 4934191 (1990-06-01), Kroening et al.
patent: 4961456 (1990-10-01), Stembridge et al.
patent: 5031451 (1991-07-01), Webster
patent: 5094108 (1992-03-01), Kim et al.
patent: 5105661 (1992-04-01), Sekita et al.
patent: 5195058 (1993-03-01), Simon
patent: 5264831 (1993-11-01), Pfeiffer
patent: 5438868 (1995-08-01), Holden et al.
patent: 5586085 (1996-12-01), Lichte
patent: 5663503 (1997-09-01), Dam et al.
patent: 5697248 (1997-12-01), Brown
patent: 5730025 (1998-03-01), Getman et al.
patent: 5755136 (1998-05-01), Getman et al.
patent: 5836192 (1998-11-01), Getman et al.
patent: 6053041 (2000-04-01), Sinha
patent: 6412344 (2002-07-01), Danicich et al.
patent: 6435024 (2002-08-01), Alvarez et al.
patent: 6529845 (2003-03-01), Beck
patent: 6536275 (2003-03-01), Durkee et al.
patent: 6631639 (2003-10-01), Dam et al.
patent: 2003/0150257 (2003-08-01), Mutz et al.
patent: 2005/0132797 (2005-06-01), Klees et al.
patent: 0 676 624 (1995-10-01), None
patent: 2 050 604 (1981-01-01), None
patent: 2302946 (1997-02-01), None
patent: WO93/02340 (1993-02-01), None

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