Three-piece knock-down sawhorse

Details Three-piece knock-down sawhorse Three-piece knock-down sawhorse

1985-03-21

1986-03-11

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Kit or separable parts

182181, 182224, 248165, 108 561, F16M 1100

Patent

active

045749175

ABSTRACT:
A sawhorse comprising three interlocking plywood panels, a pair of which function as legs at either end of the remaining panel, which functions as the back of the sawhorse. Each end of the back is fitted with a pair of vertically-spaced tabs which define downward-facing notches. Those notches fit into a mating upward-facing notch and a mating slit in the leg panels. An arcuate edge on each end of the back between the pair of vertically-spaced notches requires that the leg panels be stressed in order to align the notches of the back with the notch and slit of the leg support panel. Without the use of any special securing hardware, the stressed assembly prevents the sawhorse from collapsing if it is lifted by the back or mechanically jolted.

REFERENCES:
patent: D245105 (1977-07-01), Rader
patent: 1832801 (1931-11-01), Wright
patent: 2279864 (1942-04-01), Eide
patent: 3035660 (1962-05-01), Leon
patent: 3603656 (1971-09-01), Ferman
patent: 4105091 (1978-08-01), Mahan
patent: 4140065 (1979-02-01), Chacon
patent: 4182432 (1980-01-01), Cossitt
patent: 4433753 (1984-02-01), Watson

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