Title: Telescoping antenna mast

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.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Rupprecht, Walter (Linsengericht 1, DE, US)

Application Number: 831987
Filing Date: 1977-09-09
Publication_date: 1979-01-30
Assignee:
Primary Class(es): 343/902 52/118
Other Classes:
US Patent Ref:

2646504

Jul, 1953

Gosline

343/902.

Other Refs:
Primary Examiner: Smith, Alfred E.
Assistant Examiner: Moore, David K.
Attorney: Fasse; W. G., Gould; D. F.