Foldable sawhorse

Details Foldable sawhorse Foldable sawhorse

1992-06-01

1993-06-01

Chin-Shue, Alvin C.

Fire escape, ladder, or scaffold

Unitary foldable, rigid scaffold or ladder

Trestle

182225, 182181, F16M 1100

Patent

active

052151620

ABSTRACT:
A foldable work support apparatus includes an elongated cross beam and first and second leg units each hingedly attached to the cross beam with the upper portion of the leg unit being located beneath the cross beam, the hinged connections permitting the leg units to pivot beneath the cross beam between a use position in which the leg units extend at right angles to the axis of the cross beam and a storage position in which the leg units are coplanar with the cross beam, and latching mechanisms for latching each of the leg units in the use position.

REFERENCES:
patent: D274365 (1984-06-01), Lipinski
patent: D276074 (1984-10-01), Wagster
patent: D279606 (1985-07-01), Merians
patent: 1224893 (1917-05-01), Beckwith
patent: 1935896 (1933-11-01), Wertz
patent: 2666673 (1954-01-01), Hughes
patent: 2829927 (1958-04-01), Sword
patent: 2874004 (1959-02-01), Tucker
patent: 2925140 (1960-02-01), Thielepape
patent: 3045777 (1962-07-01), Dintelmann
patent: 3502174 (1970-03-01), Cannon
patent: 4508194 (1985-04-01), Freewalt et al.

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