Beds – Crib – Folding
Patent
1992-12-21
1994-03-15
Trettel, Michael F.
Beds
Crib
Folding
5 981, 16326, 16325, 403102, A47D 1306
Patent
active
052936562
ABSTRACT:
A foldable frame assembly for a children's playpen, including an upper foldable rail mechanism composed of four upper rails each of which is foldable at a joint thereof, and a lower foldable rail mechanism composed of a chassis seat and four lower rails pivotally connected therewith in a radial pattern, wherein the upper rail mechanism is formed by simple components while the lower rail mechanism is provided with support-enhancing members to insure the safety in use.
REFERENCES:
patent: 1618885 (1927-02-01), Minor
patent: 2486054 (1949-10-01), Morse
patent: 3187373 (1965-06-01), Fisher
patent: 4226549 (1980-10-01), Batt
patent: 4811437 (1989-03-01), Dillner et al.
Liauh W. Wayne
Trettel Michael F.
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