Static structures (e.g. – buildings) – Machine or implement
Patent
1992-09-14
1994-08-02
Friedman, Carl D.
Static structures (e.g., buildings)
Machine or implement
527261, 403337, E04H 1200
Patent
active
053334361
ABSTRACT:
This invention relates to an improved modular antenna pole and to a unique and novel method of joining the pre-fabricated sections which, when assembled, constitute the pole. The pole is comprised of a series of cylindrical sections of decreasing diameters having flanges so designed that the bottom flange of a next succeeding higher section, secured to the outside of the cylindrical section, mates with the top flange of the adjacent lower section, which flange is secured to the inside thereof. Consequently, the pole may be "tapered" from bottom to top in progressively smaller incremental steps rather than by tapering each successive section.
REFERENCES:
patent: 7412 (1850-06-01), Fisher
patent: 578524 (1897-03-01), Reid
patent: 2250448 (1941-07-01), Edwards
patent: 2369533 (1945-02-01), Cohen
patent: 2412678 (1946-12-01), Goldman
patent: 3345826 (1967-10-01), Hignite
patent: 3421781 (1969-01-01), Spurk
patent: 4086012 (1978-04-01), Buckley et al.
patent: 4721008 (1988-01-01), Stoops et al.
Friedman Carl D.
Hall James D.
Pi-Rod, Inc.
Wood Wynn
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