Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Having means to reduce friction between hinge parts
Patent
1997-03-19
1998-10-20
Mah, Chuck
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Having means to reduce friction between hinge parts
16243, E05D 1104
Patent
active
058228322
ABSTRACT:
A hinge, comprising at least one first element which is fastenable to an upright member and a second element which is fastenable to a plurality of rolling bodies interposed between the first element and second element, the rolling bodies rolling along a first annular track and a second annular track respectively provided on the first element and the second element, each of said tracks having a bottom portion and two side portions, wherein the side portions are extended for retaining the rolling bodies inside the tracks during rolling of the rolling bodies along the annular tracks and form between the first element and the second element, in the region of the rolling bodies, an annular gap which is wide enough to prevent contact between the first element and the second element, said annular gap also being formed in an area located coinciding with the axes of symmetry of said first and second elements and wherein adjacent ends of the first and second elements are spaced apart by the annular gap so as to not contact one another.
REFERENCES:
patent: 586146 (1897-07-01), Steinfeldt
patent: 822570 (1906-06-01), Bommer
patent: 1341690 (1920-06-01), Werner
patent: 1639633 (1927-08-01), Raymond
patent: 2636211 (1953-04-01), Williams
patent: 3118171 (1964-01-01), Parsons
patent: 3465380 (1969-09-01), Foltz
patent: 4097959 (1978-07-01), Johnson
patent: 4381580 (1983-05-01), Hellstrom et al.
Maggi S.p.A.
Mah Chuck
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