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Primary Examiner: Cardillo, Jr., Raymond F.
Assistant Examiner:
Attorney: Whitacre; Eugene M., Siegel; Stephen, Meagher; William H.

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Title: Precision turntable rotation in a vacuum atmosphere

Abstract: Fluid from a hydraulic pressure source is utilized to rotate and support a turntable in a vacuum chamber. Signals representative of the rotational velocity of the turntable are utilized to control the hydraulic pressure of the fluid rotating the turntable.

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Inventors: Jebens, Robert Warren (Skillman, NJ, US)
Morewood, William Henry (Pennington, NJ, US)

Application Number: 349775
Filing Date: 1973-04-10
Publication_date: 1976-03-09
Assignee: RCA Corporation (New York, NY)
Primary Class(es): 369/213 360/73.03, 369/111, 369/239, 369/266
Other Classes:
US Patent Ref:

3030452	Apr, 1962	Uritis	340/174.
3381085	Apr, 1968	Johnson et al.	178/6.

Other Refs: Other References: Magnetic Bearing, Brandenberg, IBM Tech. Disclosure Bulletin, Vol. 3, No. 1, 6/60, p. 13.