Communications: radio wave antennas – Antennas – With reel for antenna
Patent
1978-06-19
1980-09-30
Lieberman, Eli
Communications: radio wave antennas
Antennas
With reel for antenna
343903, H01Q 114, H01Q 132
Patent
active
042258715
ABSTRACT:
An antenna has a housing at least one opening with a drum rotatably mounted in said housing perpendicular to the opening and a wave receiving stylus carried by the drum for projection from the housing through said opening. The stylus is a band preformed according to a given curved shape about its longitudinal axis with the band being sufficiently resilient so as to be flattened and wound up on the drum and being sufficiently flexible so as to assume a tubular configuration in cross-section in the absence of stress when in a position extended from the housing. Idler rollers are carried by the housing around the drum in spaced relation thereto to limit band sliding frictions with respect to the housing and guide elements are interposed between the idler rollers to promote a correct superimposition of the band spirals on and off the drum.
REFERENCES:
patent: 2157278 (1939-05-01), Blackmore
patent: 2276935 (1942-03-01), Como
patent: 2834012 (1958-05-01), Allen
patent: 3331075 (1967-07-01), Moulton
patent: 3541568 (1970-11-01), Lowenhar
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