Tone arm assembly

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7944803
APP PUB NO 20100080108A1
SERIAL NO

12243631

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A tone arm assembly for use with a rotatable turntable. The tone arm assembly includes a tone arm body supported adjacent to the rotating turntable being horizontally pivotable about a vertically extending axis. A tone arm tube is provided having a longitudinal axis and a first end and a second end, the first end extending within and being supported by the tone arm body and the second end terminating at a shell for releaseably supporting a pick up cartridge. A counterweight is included which is translatable along a horizontal path parallel to the longitudinal axis of the tone arm tube between a first position and a second position, the first position being closest to the shell and a second position being farthest from the shell to adjust contact pressure between a stylus maintained by the pick up cartridge and a record supported by the rotatable turntable. At least a portion of the counterweight is capable of extending fore and aft of the vertically extending axis when the counterweight is positioned on its horizontal path between its first and second positions.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
PERKINS ALLENNot Provided

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Perkins, Allen Berkeley, US 2 1

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