Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – With mounting or supporting means
Patent
1979-11-14
1981-10-20
Bonck, Rodney H.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
With mounting or supporting means
16128R, 16172, E06B 300, E05D 710
Patent
active
042955149
ABSTRACT:
There is disclosed a hinge structure for a bifold door assembly or the like, which includes first and second leaf members, the first leaf member comprising a generally flat mounting or leaf portion and a knuckle portion. The knuckle portion includes one or more and preferably a pair of coaxial spaced, knuckle portions which are of a generally semi-circular or U-shaped configuration in cross section, thus defining generally open knuckles. The second leaf member includes a generally flat mounting or leaf portion and a knuckle portion comprising a generally cylindrical closed knuckle with a pair of rod-like pins extending coaxially therefrom. The axial length of the closed knuckle is such that it may be disposed between the open knuckles of the first leaf member and the outwardly extending pins received in the open, U-shaped knuckle portions. Upon assembly, the first leaf member is mounted so that the open knuckle portions are offset with respect to the door edge, with a surface portion of the door serving to cooperate with the open knuckle portions to confine the pin members and prevent lateral separation.
REFERENCES:
patent: 193208 (1877-07-01), Arnold
patent: 437492 (1890-09-01), Herrick
patent: 931697 (1909-08-01), Maxwell
patent: 1578408 (1926-03-01), Diday
patent: 2618809 (1952-11-01), Rubinoff
patent: 2778053 (1957-01-01), Hess et al.
patent: 2860701 (1958-11-01), Wood et al.
patent: 3577584 (1971-05-01), Himelreich
patent: 3811489 (1974-05-01), Thun et al.
Bonck Rodney H.
Lawrence Brothers Inc.
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