Telescoping antenna mast

Details Telescoping antenna mast Telescoping antenna mast

1977-09-09

1979-01-30

Smith, Alfred E.

Communications: radio wave antennas

Antennas

Rod type

52118, H01Q 104

Patent

active

041375351

ABSTRACT:
The present antenna mast is constructed to telescope in response to pneumatic pressure. For this purpose a bottom tubular section has a pressure inlet and each further tubular section has a lower end fitting as a piston into the next lower section. Each piston has a passage for a gas under pressure into the next higher section. The upper end of the uppermost section is closed. The antenna is retracted by venting the bottom tubular section.

REFERENCES:
patent: 2646504 (1953-07-01), Gosline

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