The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 27, 1994

Filed:

Jul. 31, 1992
Applicant:
Inventors:

Gary W Andert, Rosemount, MN (US);

Rollin D Botts, Bloomington, MN (US);

Andrew J Shea, Eden Prairie, MN (US);

Assignee:

Sico Incorporated, Minneapolis, MN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04H / ; E04H / ;
U.S. Cl.
CPC ...
52-7 ; 52-8 ; 52-9 ;
Abstract

An elevationally adjustable folding stage has a frame which folds along a center of the stage from a storage position to a use position. Stage panels of interchangeable widths form a stage surface and are reversible and interchangeable. The stage may also support additional panels between stages extending therefrom to form an extended stage surface. The stage has a roller assembly which lifts the stage up so that rollers engage the floor for rolling between storage and use locations. Connectors between the frame and the stage offer quick connection without additional pieces. Connectors also provide for inserting risers to raise the height of one panel of the stage relative to the other. In addition to the risers, multi-panel supporting bases may be used to support the panels extending from the edges of the stage between stages. The panels between the stages may be stored on the stage while in the use or folded position by hook members which rotate from a storage to a use position to retain the additional panels. Folding of the stage is assisted by a spring folding assist member which prevents closing of the stage and assists in the initial opening of the stage toward the folded position. Accidental folding of the stage is also prevented by a locking linkage and a spacing linkage which lock the stage in the use position to prevent accidental folding and also to maintain the stage in the use position when elevationally adjusting the stage panels.


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