Segmented scribing roller for refining the domain structure of electrical steels by local mechanical deformation

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United States of America Patent

PATENT NO 5463889
SERIAL NO

08378891

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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 sheet by mechanical scribing using a solid anvil roll and a scribing roller including scribing segments arranged side by side along an arbor. The arbor carries inflatable bladder ribs along the length of the arbor to provide uniform contact pressure exerted by scribing surfaces of the strip.

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Patent Owner(s)

Patent OwnerAddress
ALLEGHENY LUDLUM CORPORATIONPITTSBURGH PENNSYLVANIA 15222-5479

International Classification(s)

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  • 1995 Application Filing Year
  • B21B Class
  • 135 Applications Filed
  • 58 Patents Issued To-Date
  • 42.97 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances1995199619971998199920000255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Benford, James G Pittsburgh, PA 10 42
Snyder, Ralph E Export, PA 4 23
Sorace, Dominic A Sarver, PA 4 29

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Patent Citation Ranking

  • 2 Citation Count
  • B21B Class
  • 6.73 % 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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