Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1994-10-27
1997-01-07
Mullen, Thomas
Communications: electrical
Condition responsive indicating system
Specific condition
29600, 342 51, 343895, G08B 1314
Patent
active
055921507
ABSTRACT:
In one aspect, the present invention provides an air coil 20. The air coil 20 may be made from a strip of electrically conductive material 22 which has an insulating material overlying it. For example, the conductive material may comprise copper. The strip 22 is wound into a coil to perform a plurality of windings. The insulating material electrically insulates each of the winding from adjacent ones of the windings.
REFERENCES:
patent: 4778552 (1988-10-01), Benge et al.
patent: 4857893 (1989-08-01), Carroll
patent: 5053774 (1991-10-01), Schuemann et al.
patent: 5307081 (1994-04-01), Harmuth
patent: 5408243 (1995-04-01), D'Hont
patent: 5450088 (1995-09-01), Meier et al.
Donaldson Richard L.
Kesterson James C.
Matsil Ira S.
Mullen Thomas
Texas Instruments Incorporated
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