Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1986-12-12
1988-05-03
Henry, Jon W.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343915, G02B 508, G02B 718
Patent
active
047416092
ABSTRACT:
A stretched membrane heliostat having a membrane mounted on a generally circular frame, there being a double-walled portion of the membrane that extends in a circle near the periphery of the membrane to form a bladder that is inflatable to tension the membrane.
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patent: 3471860 (1969-10-01), Amburgey
patent: 3552835 (1971-01-01), Benzies
patent: 3880500 (1975-04-01), Kojabashian
patent: 3936159 (1976-02-01), Pavenick
patent: 4288146 (1981-09-01), Johnson et al.
patent: 4382657 (1983-05-01), Lemaitre
patent: 4487196 (1984-12-01), Murphy
Corbin Charles C.
Henry Jon W.
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