On board lubrication systems for lubricating top of rail for cars and rail gage side/wheel flange for locomotives

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5896947
SERIAL NO

08870047

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In railroad applications, a new method of simultaneously lubricating the rail gage side (RAGS) and wheel flanges ahead of a locomotive's tractive wheels and lubricating the top of the rail (TOR) behind the tractive wheels to reduce the resistance of the trailing cars and reduce the locomotive wheel flange wear. The method involves controlling both lubricating units with the same computer controller when a single locomotive is used and two controllers located in two different locomotives in the case of a locomotive consist. The rail gage side lubricant spray is applied on curves of 2 degrees or more only on the high rail. For the top of rail lubrication at the trailing end of the locomotive or locomotive consist this invention requires that the angle of the lubricant jet on the rail from the vertical be between 0 and 80 degrees from the vertical, with the angle increasing in the rear or trailing direction. It further requires that the lubricant jet be a solid jet without breaking into a spray cone.

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Patent Owner(s)

Patent OwnerAddress
LORAM MAINTENANCE OF WAY INC3900 ARROWHEAD DRIVE HAMEL MN 55340

International Classification(s)

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  • 1997 Application Filing Year
  • B61K Class
  • 8 Applications Filed
  • 3 Patents Issued To-Date
  • 37.50 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances1997199819990255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kumar, Sudhir Darien, IL 68 888

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Patent Citation Ranking

  • 20 Citation Count
  • B61K Class
  • 80 % this patent is cited more than
  • 26 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges411 - 1021 - 3000.250.50.7511.251.51.7522.252.52.7533.253.53.7544.25

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