Supports – Supporting base – Rotatable
Patent
1984-11-14
1987-04-21
Machado, Reinaldo P.
Supports
Supporting base
Rotatable
248131, A47B 9100
Patent
active
046590501
ABSTRACT:
A rotary support device comprises an annular upper member and an annular under member which are so arranged that their inner or outer peripheral walls overlap each other with a small clearance formed therebetween. The overlapping peripheral walls are bent toward each other to form a pair of retaining portions which are rotatable relative to each other. A plurality of steel balls held spaced apart equidistantly by a retainer are rollably provided between the two members.
REFERENCES:
patent: 2545122 (1951-03-01), Thompson
patent: 2671631 (1954-03-01), Fox
patent: 3004571 (1961-10-01), Gerbrandt
patent: 3302594 (1967-02-01), Barnett
patent: 4239304 (1980-12-01), Wakunami
patent: 4267913 (1981-05-01), Ernst
Chin-Shue Alvin
Machado Reinaldo P.
Osaka Taiyo Co., Ltd.
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