Rapidly extendible and retractable antenna mast

Details Rapidly extendible and retractable antenna mast Rapidly extendible and retractable antenna mast

1991-11-15

1993-06-08

Wimer, Michael C.

Communications: radio wave antennas

Antennas

With support for antenna, reflector or director

343903, 52118, H01Q 110

Patent

active

052183750

ABSTRACT:
An extendible and retractable mast is shown which features a tubular body having telescopic sections carried therein. A travelling carriage is driven by means of a winch over associated sheaves to sequentially engage the trailing ends of the telescopic sections for moving the sections between a collapsed position and any desired degree of elevation projecting from the upper end of the tubular body. A series of locking cams allow each telescopic section to be locked into position at a desired degree of elevation. A power assist is provided for assisting the retraction of the telescopic sections.

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patent: 5035094 (1991-07-01), Legare
patent: 5052645 (1991-10-01), Hixon
patent: 5101215 (1992-03-01), Creaser, Jr.

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