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. 24, 1995
Filed:
Feb. 14, 1994
Applicant:
Inventor:
Luc Doublet, Seclin, FR;
Assignee:
ETS. Doublet, Avelin, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04H / ;
U.S. Cl.
CPC ...
52-8 ; 52-7 ;
Abstract
A foldup grandstand, in which the rows of seats telescope into an unfolded position with the rows of seats available for the spectators, or into a folded position in which the rows of seats are nested one above the other. A series of frames with wheels support the seats, and a V-shaped pieces and frame aligned with a centering finger on an adjacent frame to join the two frames together. The finger has a bent shape and a special head which facilitates its alignment with the V-shaped piece. A self-locking element, rollers, ballast, drivers, cable drives, and an immobilization or locking members are also parts of the grandstand mechanism.