Chairs and seats – Supplemental back – Including a means to adjust supplemental back relative to a...
Patent
1977-07-15
1983-05-31
Lyddane, William E.
Chairs and seats
Supplemental back
Including a means to adjust supplemental back relative to a...
297350, 297352, A47C 702
Patent
active
043857825
ABSTRACT:
A seat structure of carboard and the like is illustrated wherein a seat portion and a back portion as well as flaps provided for interconnecting the seat and the back are formed from a single blank providing a foldable seat for use upon bleachers and the like as when attending sporting events. The flaps are insertable within a pair of inwardly converging slots carried in the seat portion to resist the force exerted by a user leaning back.
REFERENCES:
patent: 2001252 (1935-05-01), Johnson
patent: 2710646 (1955-06-01), Kirby
patent: 3053569 (1962-09-01), Clark, Jr.
patent: 3359036 (1967-12-01), Druth et al.
Bailey Ralph
Lyddane William E.
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