Method and arrangement to insulate rail ends

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7975933
APP PUB NO 20060243818A1
SERIAL NO

11375372

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A rail joint arrangement comprises two rails. The rails have adjacent rail ends separated and thereby forming a gap. The rails have a top end containing a rail head and a bottom end. The gap is defined between the top end and the bottom end of the rails, and the width of the gap is non-uniform throughout its entire length. In addition, the rail joint arrangement comprises at least one electric insulator positioned within the gap. The rail joint arrangement is fastened together by a rail joint bar attaching the two rails together.

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Patent Owner(s)

Patent OwnerAddress
KOPPERS DELAWARE INC436 SEVENTH AVENUE PITTSBURGH PA 15219

International Classification(s)

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  • 2006 Application Filing Year
  • E01B Class
  • 67 Applications Filed
  • 43 Patents Issued To-Date
  • 64.18 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2006200720082009201020112012201320140255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boario, Patrick J Allegheny Township, US 10 57
Downey, John M Ashland, US 16 119
Mospan, John W Pittsburgh, US 37 298
Urmson,, Jr W Thomas Valencia, US 18 103

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Patent Citation Ranking

  • 2 Citation Count
  • E01B Class
  • 6.35 % this patent is cited more than
  • 14 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges4544101 - 1011 - 2021 - 3002.557.51012.51517.52022.52527.53032.53537.54042.54547.55052.55557.5

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