Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1999-04-15
2000-08-01
Lee, Benjamin C.
Communications: electrical
Condition responsive indicating system
Specific condition
3405722, 3405725, 3405727, 343742, 343867, 342 51, 235493, G08B 1314
Patent
active
060972939
ABSTRACT:
A passive electrical marker has tuned circuits, each of which includes a coil and a capacitance. The tuned circuits are oriented with respect to each other in a predetermined arrangement so as to provide a broader spatial response. A foamed core inside of the tuned circuits maintains the tuned circuits in their respective orientations and protects the tuned circuits from mechanical shock. A shell or housing around the foamed tuned circuits provides environmental protection to the tuned circuits. The tuned circuits can be foamed together in a mold and then placed into the housing. Alternatively, the tuned circuits can be foamed together inside of a housing, which housing maintains the orientations between the tuned circuits during foaming. As still another alternative, the housing can be applied to the outside of the foamed tuned circuits as a coating.
REFERENCES:
patent: 3683389 (1972-08-01), Hollis
patent: 3689885 (1972-09-01), Kaplan et al.
patent: 3719950 (1973-03-01), Bukhman et al.
patent: 3818487 (1974-06-01), Brody et al.
patent: 3836842 (1974-09-01), Zimmermann et al.
patent: 3938044 (1976-02-01), Lichtblau
patent: 3983552 (1976-09-01), Bakeman, Jr. et al.
patent: 4118693 (1978-10-01), Novikoff
patent: 4119908 (1978-10-01), Cosman et al.
patent: 4240072 (1980-12-01), Fowler
patent: 4260983 (1981-04-01), Falck et al.
patent: 4292590 (1981-09-01), Wilson
patent: 4293816 (1981-10-01), Johnson
patent: 4334227 (1982-06-01), Marks
patent: 4342904 (1982-08-01), Onasager
patent: 4482513 (1984-11-01), Auletti
patent: 4581524 (1986-04-01), Hockman et al.
patent: 4668912 (1987-05-01), Junker
patent: 4712094 (1987-12-01), Bolson, Sr.
patent: 4761656 (1988-08-01), Cosman et al.
patent: 4859991 (1989-08-01), Watkins et al.
patent: 4873530 (1989-10-01), Takeuchi et al.
patent: 4894663 (1990-01-01), Urbish et al.
patent: 4925605 (1990-05-01), Petronko
patent: 5047715 (1991-09-01), Morgenstern
patent: 5057844 (1991-10-01), Rothstein
patent: 5103234 (1992-04-01), Watkins et al.
patent: 5121103 (1992-06-01), Minasy et al.
patent: 5140334 (1992-08-01), Snyder et al.
patent: 5258766 (1993-11-01), Murdoch
patent: 5276067 (1994-01-01), Doerge
patent: 5280296 (1994-01-01), Tan et al.
patent: 5281941 (1994-01-01), Bernstein
patent: 5319354 (1994-06-01), Myatt
patent: 5397986 (1995-03-01), Conway et al.
patent: 5426443 (1995-06-01), Jenness, Jr.
patent: 5497099 (1996-03-01), Walton
patent: 5499015 (1996-03-01), Winkler et al.
patent: 5539421 (1996-07-01), Hong
patent: 5585811 (1996-12-01), Jetzer
patent: 5592182 (1997-01-01), Yao et al.
patent: 5699048 (1997-12-01), Galloway
patent: 5814986 (1998-09-01), Goskowicz et al.
Galloway George G.
McWilliams Ronald L.
Moss John
Napps Kenneth D.
Nash Sean
Industrial Technology Inc.
Lee Benjamin C.
Mantooth Geoffrey A.
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