Supports – Stand – Horizontally movable support surface
Patent
1991-03-12
1992-11-17
Ramirez, Ramon O.
Supports
Stand
Horizontally movable support surface
108 20, 248913, F16M 1300
Patent
active
051636514
ABSTRACT:
A movable table has a movable platen, a flange member secured to the movable platen and a fixed platen sandwiched between the movable platen and the flange member. Thrust bearings are disposed between the fixed platen and the movable platen and between the fixed platen and the flange member. Drive units are coupled to the movable platen to move the movable platen along the thrust bearings. Instead of supporting the movable platen on the thrust bearings, it may be supported in a non-contact manner by blowing compressed air into clearances defined between the fixed platen and the movable platen and between the fixed platen and the flange member.
REFERENCES:
patent: 3479632 (1969-11-01), Galles
patent: 3495519 (1970-02-01), Alfsen et al.
patent: 3517624 (1970-06-01), Helms
patent: 3615068 (1971-10-01), Edelstein
patent: 3638933 (1972-02-01), Burnette et al.
patent: 4640486 (1987-02-01), Neville
patent: 4854532 (1989-08-01), Trovato
patent: 5029791 (1991-07-01), Ceccon et al.
patent: 5031547 (1991-07-01), Hirose
NTN Corporation
Ramirez Ramon O.
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