Communications: radio wave antennas – Antennas – With radio cabinet
Patent
1994-11-21
1996-12-10
Hajec, Donald T.
Communications: radio wave antennas
Antennas
With radio cabinet
343901, H01Q 124
Patent
active
055835180
ABSTRACT:
A structure including a casing allows the user of a portable radio communication apparatus to extend and retract a retractable antenna into the casing of the apparatus with the hand holding the casing. The casing has thereinside a movable contact, a locking portion, an electrode, and a resilient member having a spring. An operating portion for operating the movable contact protrudes from the casing and is connected to the movable contact. To extend the antenna from the casing, the user tilts the casing such that the antenna is oriented downward and then presses the operating portion. As a result, the movable contact is moved away from the locking portion to allow the antenna to fall due to gravity. To retract the antenna into the casing, the user tilts the casing such that the antenna is oriented upward and then presses the operating portion.
REFERENCES:
patent: 3946317 (1976-03-01), Ishimaru et al.
patent: 3946390 (1976-03-01), Alexander et al.
patent: 4313119 (1982-01-01), Garay et al.
patent: 4385849 (1983-05-01), Crain
patent: 4725845 (1988-02-01), Phillips
patent: 4847629 (1989-07-01), Shimazaki
patent: 5243355 (1993-09-01), Emmert et al.
Hajec Donald T.
NEC Corporation
Phan Tho
LandOfFree
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