Three variable reference chart and calculator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5517007
SERIAL NO

08305303

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Disclosed is a manually operable calculator for determining a fourth value on the basis of three variables. According to one example, the calculator is used to determine the total storage available for a recording medium consisting of several units, such as hard disks or magneto optical disks. Specifically, values for total storage are displayed in response to inputting the capacity of each disk, the number of disks and the data recording rate. According to the invention, the calculator comprises a slide member upon which two rotating wheels are mounted along a common axis of rotation. The slide and wheels each have indicia corresponding to the three variables printed thereon. The indicia on the wheels is selected by rotation while the indicia on the slide is selected by moving the slide within a sleeve having openings formed therein.

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Patent Owner(s)

Patent OwnerAddress
SONY CORPORATIONTOKYO
SONY ELECTRONICS INC1 SONY DRIVE PARK RIDGE NJ 07656

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Morgan, Oliver F San Jose, CA 4 281

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