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.
Patent No.:
Date of Patent:
Oct. 11, 1983
Filed:
Jan. 16, 1979
Applicant:
Inventor:
Morris D Robinson, Redondo Beach, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60P / ;
U.S. Cl.
CPC ...
414545 ; 187 / ;
Abstract
A controlled-folding and controlled-unfolding multiple section platform assembly for a structural entry. A platform assembly includes an inner and an outer platform section which are pivotally joined together for folding and unfolding. Fold control means comprises a pair of pivotally jointed rigid supports and a rigid co-ordinating member extending between the inner platform section and the outermost of the rigid supports. Tilting of the inner platform section is accompanied by a folding action of the outer platform section, there being a unique included angle between the two platform sections for every unique angle of tilt of the inner platform section.