Breakaway pole assembly

Details Breakaway pole assembly Breakaway pole assembly

1990-04-18

1992-02-18

Talbott, David L.

Supports

With component frangible or deformable on impact or overload

52 98, 403 2, 248900, 248909, F16M 1300

Patent

active

050886835

ABSTRACT:
The breakaway assembly includes a cast aluminum base having a collar for supporting a wrought aluminum standard and a base flange for securing the breakaway assembly to a plurality of anchor bolts projecting from a concrete foundation. The base flange includes a plurality of apertures for receiving the anchor bolts. Grooves are provided in the base flange adjacent the anchor bolt apertures. Upon impact, the standard creases and bends causing the heel of the base flange to lift. This lifting motion shears the base flange at the grooves to permit the base to lift away from the anchor bolts.

REFERENCES:
patent: 3521413 (1970-07-01), Scott et al.
patent: 3563502 (1971-02-01), Dayson
patent: 3599926 (1971-08-01), Takahashi
patent: 3630474 (1971-12-01), Minor
patent: 4007564 (1977-02-01), Chisholm
patent: 4490062 (1984-12-01), Chisholm
patent: 4674907 (1987-06-01), Shewchuk
patent: 4813199 (1989-03-01), Lewis, Jr.

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