Robotic arm having a splash guard

Details Robotic arm having a splash guard Robotic arm having a splash guard

1996-07-09

1998-07-07

Herrmann, Allan D.

Machine element or mechanism

Control lever and linkage systems

Multiple controlling elements for single controlled element

277 56, 384488, 901 28, 901 50, B25J 1700, B25J 1800, F16C 3376

Patent

active

057751692

ABSTRACT:
A robotic arm has a base with a top surface and an aperture therein. A shaft extends up through the aperture, and there is a gap between the shaft and an inner edge of the aperture. A splash guard may extend over said gap, and an indentation in said top surface may at least partially surround the gap. A seal, including a bearing and a barrier, is located in the gap. The bearing allows the inner and outer surfaces to rotate relative to each other. The barrier includes a plurality of annular outward-pointing flanges attached to an inner surface interleaved with a plurality of annular inward-pointing flanges attached to an outer surface. The flanges may be angled and have an upturned lip located at an inner edge of each flange. The seal may include a magnet attached to a flange.

REFERENCES:
patent: 1806748 (1931-05-01), Edwards
patent: 2779640 (1957-01-01), Jones et al.
patent: 4033643 (1977-07-01), Miller et al.
patent: 4348067 (1982-09-01), Tooley
patent: 4527915 (1985-07-01), Ikariishi et al.
patent: 4605233 (1986-08-01), Sato
patent: 4904148 (1990-02-01), Larsson
patent: 4953992 (1990-09-01), Torii et al.
Ferrofluidics Corporation, "Ferrofluidic Metric Vacuum Rotary Feedthroughs", (Information Bulletin).
Rigaku Corporation, Rigaku/Magnetic Rotary Seal Unit--Rotary Feedthrough, RMS Series, pp. 1-10.

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