Joist hanger

Details Joist hanger Joist hanger

1981-06-08

1983-10-25

Shedd, Wayne L.

Joints and connections

Rod end to transverse side of member

Stirrup

52289, B25G 300, F16B 708, F16B 900, F16L 4100

Patent

active

044115482

ABSTRACT:
A joist hanger (10) includes a U-shaped seat portion (16) composed of a flat seat base (18) and a pair of seat sidewalls (20) extending upwardly in spaced parallel relationship therefrom to thereby receive the end portion of an I-beam joist (12). Elongate, substantially straight retaining prongs (30) extend downwardly and nominally inwardly from sidewalls (20) to terminate at a pointed tip (52) spaced slightly above joist lower chord (32). Prongs (30) deflect out of the way of lower chord (32) as joist (12) is lowered into seat portion (16) and then resume their nominal diagonal orientation once lower chord (32) has passed by, to overlap chord (32) and thus prevent upward movement of joist (12).

REFERENCES:
patent: 546147 (1895-09-01), Gregg
patent: 783807 (1905-02-01), Tuteur
patent: 832133 (1906-10-01), Lanz
patent: 2500636 (1950-03-01), Isakson
patent: 3222831 (1965-12-01), Pritchard
patent: 3601428 (1971-08-01), Gilb
Bowman Catalog, p. 17, Joist Hangers BJI.

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