Vacuum chuck

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4184292
SERIAL NO

05890012

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A vacuum chuck for use in lens grinding having a vertical bore extending downwardly into the block to join a through horizontal bore provided with a venturi, so that by blowing air through the venturi a vacuum is created in the vertical bore to secure the lens placed on top of the block.

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Patent Owner(s)

  • COBURN OPTICAL INDUSTRIES, INC.;COBURN TECHNOLOGIES, INC.;REVLON CONSUMER PRODUCTS CORPORATION, A CORPORATION OF DELAWARE

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
DeFazio, August Englishtown, NJ 5 156
Kamen, Melvin E Woodcliff Lake, NJ 39 690

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