Key having an air coil antenna and a method of construction

Details Key having an air coil antenna and a method of construction Key having an air coil antenna and a method of construction

1997-05-29

1998-03-31

Gall, Lloyd A.

Locks

Operating mechanism

Using a powered device

70395, 70408, 70413, 235375, 235380, 34082554, E05B 1904

Patent

active

057325790

ABSTRACT:
A key (10) is provided that includes a key body (12) having a forked end. The forked end comprises a first tine (14) and a second tine (16). A transponder (20) is disposed between the first tine (14) and the second tine (16). The transponder (20) is operable to generate signals. An air coil antenna (18) is coupled to the key body (12) proximate the forked end and is electrically coupled to the transponder (20). The air coil antenna (18) is operable to transmit signals generated by the transponder (20).

REFERENCES:
patent: 3729965 (1973-05-01), Gartner
patent: 4663952 (1987-05-01), Gelhard
patent: 5029459 (1991-07-01), Almblad
patent: 5117097 (1992-05-01), Kimura et al.
patent: 5311757 (1994-05-01), Spahn
patent: 5433096 (1995-07-01), Janssen et al.

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