Stylus lifting/lowering actuator with air damping

Details Stylus lifting/lowering actuator with air damping Stylus lifting/lowering actuator with air damping

1981-09-08

1983-12-27

Stephan, Steven L.

Dynamic information storage or retrieval

Dynamic mechanism subsystem

Having power driven transducer assembly

369170, G11B 1706

Patent

active

044235003

ABSTRACT:
A lifting-lowering assembly for a stylus arm employs two flat portions having a pivot axis in the vicinity of the intersection of the two portions, a stylus arm rest on the first portion, and, an upwardly extending member on the second portion. The upwardly extending member cooperates with an electromagnetic device to rotate the assembly about the pivot axis. Air trapped under the first and second flat portions tends to permit gentle lifting and lowering operations by damping the rotational motion of the assembly.

REFERENCES:
patent: 3952145 (1976-04-01), Allen
patent: 3972533 (1976-08-01), Huff
patent: 4030124 (1977-06-01), Allen
patent: 4053161 (1977-10-01), Bleazey
patent: 4059277 (1977-11-01), DeStephanis
patent: 4266785 (1981-05-01), Burrus

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