Positive interlock

Details Positive interlock Positive interlock

1983-09-21

1984-10-30

Shoap, Allan N.

Joints and connections

Interfitted members

Rigid angle

52658, 220 76, 403401, E04C 238

Patent

active

044797370

ABSTRACT:
Apparatus for interlocking the ends of first and second channel-shaped wall sections, comprising a substantially perpendicular first tongue integral with and extending inwardly from the end of the first wall section, with a slot at the juncture therebetween. A substantially perpendicular second tongue is integral with and extends inwardly from the second wall section. The second tongue is dimensioned for insertion through the aforesaid slot, and it has a detent arranged to cooperate in mechanical engagement with the first tongue, as long as the second tongue is operatively positioned beneath and in parallel relationship to the first wall section. A third tongue on the first wall section holds the second tongue in its operative position.

REFERENCES:
patent: 1746429 (1930-02-01), Kelleweay
patent: 2869694 (1959-01-01), Breckheimer
patent: 3065451 (1962-11-01), Rutter
patent: 3967351 (1976-07-01), Rosenberg et al.
patent: 4084720 (1978-04-01), Thurston

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