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Pipe shaver

  • US 4,691,600 A
  • Filed: 11/20/1985
  • Issued: 09/08/1987
  • Est. Priority Date: 11/20/1985
  • Status: Expired due to Fees
First Claim
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1. An apparatus for removing material from the outer surface of an end section of a tubular member having a cylindrical longitudinal passage in said end section comprising:

  • a generally cup-shaped body having a longitudinally extended cylindrical side wall with a first end and a second end, a transverse base joined to the first end of the wall, a plurality of lugs joined to the second end of the wall, said side wall, base, and lugs comprising a one-piece cup shaped body, said lugs being circumferentially spaced from each other, each of said lugs being longitudinally away from said second end, each lug having a forward side with an outer end, a recess in the outer end of said forward side, a cutting tool located in each recess connected to each lug for removing material from the outer surface of the end section of the tubular member, each cutting tool comprising a cutting disc having a flat portion in engagement with the forward side of the lugs, a cone shaped outer surface, and an outer circular cutting edge at the large end of said cone shaped outer surface, each disc located in a radial plane extended through the axis of rotation of the apparatus, means securing the discs to the lugs to hold said flat portion thereof in engagement with the forward sides of the lugs and locate a portion of the cutting edge radially inwardly of said lugs, a mandrel having an inner end positioned in engagement with the base, means extended through said base to non-rotatably secure the mandrel to the base, said mandrel having a cylindrical outer surface spaced inwardly from said side wall providing an annular space and a forward end projected longitudinally away from the body, said cylindrical outer surface being of a size to fit into the cylindrical longitudinal passage of the tubular member to guide the apparatus into said end section of the tubular member, said base having an annular stop surface engageable with the tubular member to limit the length of the outer surface of the tubular member from which material is removed, means secured to the mandrel adapted to be connected to means for rotating the apparatus about the longitudinal axis of the mandrel whereby when the mandrel is moved into the passage of the tubular member and rotated with the means for rotating the apparatus whereby the cutting discs remove material from the outer surface of the end section of the tubular member providing a smooth uniform diameter cylindrical surface thereon, and the end section of the tubular member moves into said annular space until the end thereof abuts against the annular stop surface of the base.

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