Seat swivel apparatus

Details Seat swivel apparatus Seat swivel apparatus

1985-06-14

1987-02-03

Ramirez, Ramon O.

Supports

Stand

Horizontally movable support surface

108103, 384615, 403146, 403162, 248415, F16M 1300

Patent

active

046404864

ABSTRACT:
A seat swivel apparatus includes a first mounting plate rotatively mounted to a second mounting plate. Each of the first and second mounting plates has a circular recess formed therein to define a pair of bearing races which hold bearing means such as a plurality ball bearings. The first and second mounting plates are held together utilizing fastening means that include a Belleville spring to provide a continuous and substantially constant biasing force on the plates to maintain them in proper rolling contact with the ball bearings. Each of the races include two arcuate sidewall portions and a connecting portion between the sidewall portions, the connecting portions being substantially flat to help prevent the bearings from tightening within the races.

REFERENCES:
patent: 1507586 (1924-09-01), Cooper
patent: 1623845 (1927-04-01), Kogstrom
patent: 1893814 (1933-01-01), Widin
patent: 3637185 (1972-01-01), Mikos et al.
patent: 3834660 (1974-09-01), Leffler
patent: 4076346 (1978-02-01), McMahan
patent: 4401287 (1983-08-01), Moeser
patent: 4406172 (1983-09-01), Huesgen et al.
patent: 4487551 (1984-12-01), Mizutani et al.

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