Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1991-05-13
1992-06-09
Chotkowski, Karen J.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182225, 182181, 248439, B27B 2100, F16M 1100
Patent
active
051199033
ABSTRACT:
A collapsible sawhorse assembly including a cross member having first and second ends, opposing side surfaces, a lower surface and an upper surface for supporting articles. A first and second pair of support legs are adapted to horizontally elevate the first and second ends of the cross member. The support legs each further include attachment ends and ground engagement ends. Means are provided for pivotally securing the attachment ends of the first and second pair of support legs in a generally side-by-side spaced apart relation adjacent the first and second ends, respectively, of the cross member so that the first and second pair of support legs may be moved from an upstanding cross member support position. The legs are generally perpendicular to the cross member while in an erect position, and are generally parallel to the cross member while in a collapsed storage position. Means are also provided for securing the first and second pair of support legs in a stored parallel position, such that the first pair of support legs are generally sandwiched between the second pair of support legs and the lower surface of the cross member such that a collapsed readily stored sawhorse is formed.
REFERENCES:
patent: 1778566 (1930-10-01), Pitner
patent: 2216187 (1940-10-01), Dion
patent: 2473342 (1949-06-01), Larson
patent: 3198286 (1965-08-01), Wilson
patent: 3445312 (1969-05-01), Jones
patent: 3951233 (1976-04-01), Meyers
patent: 4030565 (1977-06-01), Chaput
patent: 4605099 (1986-08-01), Crum et al.
patent: 4640386 (1987-02-01), Hall
patent: 4645162 (1987-02-01), Roy et al.
patent: 4756385 (1988-07-01), Deitz et al.
patent: 4757877 (1988-07-01), Twigger
patent: 4967877 (1990-11-01), Wallman et al.
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