Chairs and seats – Movable bottom – Interconnected with back for relative concurrent movement
Patent
1975-01-13
1976-06-01
McCall, James T.
Chairs and seats
Movable bottom
Interconnected with back for relative concurrent movement
248161, 248203, 297349, A47C 300
Patent
active
039604063
ABSTRACT:
A seat is attached to the top of a vertically disposed trunnion member mounted for rotation about a vertical axis relative to a vertically disposed tubular intermediate member. The trunnion member and intermediate member are vertically adjustable together relative to a vertically disposed tubular base member. All three members are secured together into an assembly by a plurality of securing elements. The seat and trunnion member cannot be removed from the assembly without removing or disengaging a securing element. None of the detachably engaged securing elements are accessible. The only accessible securing element cannot be removed from a securing disposition without destruction thereof. This provides an effective mechanical and psychological deterrent against theft of the seat.
REFERENCES:
patent: 1683722 (1928-11-01), Morin
patent: 2048148 (1936-07-01), Stoll
patent: 2293144 (1942-08-01), Jones
patent: 2306891 (1942-12-01), McArthur
patent: 3080186 (1963-03-01), Grant
patent: 3559942 (1971-02-01), Lucasey
patent: 3642320 (1972-02-01), Ward
patent: 3708203 (1973-01-01), Barecki
patent: 3724798 (1973-04-01), Lucasey
patent: 3788584 (1974-01-01), Deike
patent: 3801055 (1974-04-01), Stenger
Coach & Car Equipment Corporation
McCall James T.
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