Mechanism for positioning a carrier

Details Mechanism for positioning a carrier Mechanism for positioning a carrier

1992-04-15

1993-02-09

Bonck, Rodney H.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74530, 74816, B23Q 1700

Patent

active

051845253

ABSTRACT:
A mobile component carrier in an instrument includes a disk with a scalloped periphery. A larger bearing and a smaller bearing are mounted on a support structure. The larger bearing has a radius greater, and the smaller bearing has a radius less than that of each of the scallops. The disk is urged into the bearings which have a relative spacing such that the larger bearing seats against two adjacent intersections of the scallops, and the smaller bearing seats against a dished surface between two other adjacent intersections.

REFERENCES:
patent: 3283782 (1966-11-01), Hague et al.
patent: 3835723 (1974-09-01), Martin
patent: 4606244 (1986-08-01), Schneemann
patent: 4823633 (1989-04-01), Pike
"Vibration Isolation for Scanning Tunneling Microscopy" by M. Okano, K. Kajimura, S. Wakiyama, F. Sakai, W. Mitzutani and M. Ono, J. Vac. Sci. Technol. A5 (6), 3313-3320 (1987).

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