Fire escape – ladder – or scaffold – Combined
Patent
1996-01-11
1998-03-03
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Combined
182165, 182104, 182 25, E06C 714
Patent
active
057225079
ABSTRACT:
A platform stool is provided including a frame having a front leg and a rear leg. The front leg is pivotably coupled to the rear leg for movement about a leg pivot axis between an opened position and a closed position. The platform stool includes a multi-part platform including a front section pivotably coupled to the front leg and a rear section pivotably coupled to the rear leg, each of the front and rear sections having a top surface. A platform support linkage couples the front section to the rear section for movement about a platform pivot axis between a platform-forming position wherein the top surface of the front section and the top surface of the rear section are aligned in substantially coplanar relation to form a platform and a platform-collapsing position wherein the top surface of the front section faces away from the rear leg and the top surface of the rear section faces away from the front leg. The front and rear legs cooperate with the multi-part platform so that the front and rear legs are in the opened position when the front and rear sections are in the platform-forming position and the front and rear legs are in the closed position when the front and rear sections are in the platform-collapsing position.
REFERENCES:
patent: 162075 (1875-04-01), Isaacs
patent: 970690 (1910-09-01), Davis
patent: 1440645 (1923-01-01), Sullivan
patent: 1702249 (1929-02-01), Davidson
patent: 2109886 (1938-03-01), Lewis
patent: 4485892 (1984-12-01), Maloney et al.
patent: 5419409 (1995-05-01), Corulla
Cosco 1995 Home Furnishings Catalog (Cover and pp. 2, 3) (1995).
Chin-Shue Alvin C.
Cosco, Inc.
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