Apparatus for domain refining electrical steels by local mechanical deformation with multiple scribing rolls

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5408856
SERIAL NO

07977595

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus are provided for refining the domain wall spacing of a grain-oriented silicon steel strip by mechanical scribing and by employing more than one row of staggered small diameter scribing rolls arranged to scribe a different portion of the surface of the strip in a manner that the entire surface of the strip is scribed and in which each row of scribing rolls co-operate with an anvil roll to support the strip.

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Patent Owner(s)

Patent OwnerAddress
ALLEGHENY LUDLUM CORPORATION1000 SIX PPG PLACE PITTSBURGH PENNSYLVANIA 15222

International Classification(s)

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  • 1992 Application Filing Year
  • B21B Class
  • 103 Applications Filed
  • 38 Patents Issued To-Date
  • 36.90 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19921993199419950255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benford, James G Pittsburgh, PA 10 42
Price, Leroy R Allison Park, PA 11 114

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Patent Citation Ranking

  • 0 Citation Count
  • B21B Class
  • 0 % this patent is cited more than
  • 30 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges7741723101 - 1011 - 2021 - 3031 - 4041 - 5005101520253035404550556065707580

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