Sealing construction for rotating portions at a bicycle

Details Sealing construction for rotating portions at a bicycle Sealing construction for rotating portions at a bicycle

1980-06-06

1983-02-01

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

3081871, F16J 1544

Patent

active

043711766

ABSTRACT:
A sealing construction for rotating joints of a bicycle, in which two or more first sealing members and second sealing members of ring-like shape are mounted alternately one after another on a stationary member and a rotary member and a gap therebetween is closed through an annular, zigzag and narrow passage, so that the narrow passage functions to provide a labyrinth effect, thereby preventing dust or rain water from entering a bearing.

REFERENCES:
patent: 1925898 (1933-09-01), Fritz
patent: 3477385 (1969-11-01), Tangeman et al.
patent: 3739444 (1973-06-01), Vargo
patent: 3957277 (1976-05-01), Margnelli
patent: 4153258 (1979-05-01), Huber

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