Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent
1993-09-03
1994-08-16
Picard, Leo P.
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
455346, H05K 900
Patent
active
053388968
ABSTRACT:
A shield device for any phone with an antenna that emits and receives microwaves, in particular cellular phones. The shield device protects a user by blocking the passage of microwaves to and from the cellular phone antenna while the phone is in use. In the first embodiment of the invention, the shield device comprises a rectangular shaped body with an upper tab for attaching the shield device to the antenna and two opposing lower tabs for attaching the shield device to the upper portion of the cellular phone. The shield device consists of a cover with a pocket for receiving the shielding member. In a second embodiment of the invention, the shield device contemplates a semi-circular hollow tubular member adapted to fit over an antenna. The tubular member has an elastic bottom portion adapted to fit firmly over the antenna ferrule. The bottom portion of the tubular member consists of a resilient disk member, thus protecting the user from any microwaves emitted and received by the antenna. In a third embodiment of the invention, the shield device comprises a hollow tubular member with telescoping members of a collapsible, retractable form.
REFERENCES:
patent: 4721965 (1988-01-01), Elliot
patent: 4725846 (1988-02-01), Hendershot
patent: 4740794 (1988-04-01), Phillips et al.
patent: 4868576 (1989-09-01), Johnson, Jr.
patent: 5041838 (1991-08-01), Liimatainen et al.
patent: 5218187 (1993-06-01), Koenck et al.
patent: 5262792 (1993-11-01), Egashira
Horgan Christopher
Picard Leo P.
Smith Hugh E.
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