Chairs and seats – Body or occupant restraint or confinement – Leg or arm restraint
Patent
1992-05-21
1993-04-20
Crown, Peter R.
Chairs and seats
Body or occupant restraint or confinement
Leg or arm restraint
297250, 297485, 297487, A47D 110
Patent
active
052036120
ABSTRACT:
A system for preventing a child from voluntarily or accidentally leaving the chair in which he or she is seated. The system provides a partial enclosure of the child's upper legs and lower torso, the enclosure being contoured to the general shape of these parts of a seated child. Also provided are a tenon sliding in a mortise and a pawl which engages ratchet teeth to permit adjusting the system for the size of the child and for locking the components of the system together during use.
REFERENCES:
patent: 1025953 (1912-05-01), Hallen
patent: 1259604 (1918-03-01), Cook
patent: 1902367 (1933-03-01), Johnson
patent: 2084448 (1936-03-01), Merchant
patent: 2532812 (1950-12-01), Huber
patent: 2552720 (1951-05-01), Keough
patent: 4819988 (1989-04-01), Hellstrom
patent: 5081936 (1992-01-01), Drieling
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