Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-04-11
2006-04-11
Lee, Benjamin C. (Department: 2632)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S580000, C340S693600, C073S573000, C073S579000, C073S589000, C073S645000, C073S650000, C073S659000, C367S137000, C367S162000
Reexamination Certificate
active
07026943
ABSTRACT:
An acoustic wave sensor utilizes one or more acoustic waves trapped in an acoustic wave cavity to detect the presence of one or more substances on a surface of the acoustic wave cavity. To detect the presence of ice, a trapped torsional acoustic wave is used. To detect water, an acoustic wave with flexural or compressional components is used. The sensor includes a number of transducers adjacent the acoustic wave cavity where a controller drives different sets of the transducers to generate different acoustic waves.
REFERENCES:
patent: 3540265 (1970-11-01), Lynnworth
patent: 4461178 (1984-07-01), Chamuel
patent: 4604612 (1986-08-01), Watkins et al.
patent: 4645870 (1987-02-01), Adler
patent: 4700176 (1987-10-01), Adler
patent: 4893496 (1990-01-01), Bau et al.
patent: 5051645 (1991-09-01), Brace et al.
patent: 5095754 (1992-03-01), Hsu et al.
patent: 5149986 (1992-09-01), Jalbert
patent: 5159838 (1992-11-01), Lynnworth
patent: 5177327 (1993-01-01), Knowles
patent: 5451723 (1995-09-01), Huang et al.
patent: 5456114 (1995-10-01), Liu et al.
patent: 5573077 (1996-11-01), Knowles
patent: 5629485 (1997-05-01), Rose et al.
patent: 5673041 (1997-09-01), Chatigny et al.
patent: 5813280 (1998-09-01), Johnson et al.
patent: 5856820 (1999-01-01), Weigers et al.
patent: 5922958 (1999-07-01), Schugt
patent: 5986224 (1999-11-01), Kent
patent: 6078315 (2000-06-01), Huang
patent: 6085576 (2000-07-01), Sunshine et al.
patent: 6087599 (2000-07-01), Knowles
patent: 6091406 (2000-07-01), Kambara et al.
patent: 6286370 (2001-09-01), Sinha
patent: 6369806 (2002-04-01), Endo et al.
patent: 6378377 (2002-04-01), Matuseski et al.
patent: 6473075 (2002-10-01), Gomes et al.
“Trapped Torsional Modes In Solid Cylinders”, W. Johnson, B.A. Auid, and E. Segal, J. Acoust. Soc. Am. 100 (1), Jul. 1996.
Kalmus Chris
Knowles Terence J.
Lee Benjamin C.
McAndrews Held & Malloy Ltd.
TexZec, Inc.
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