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US 4,334,420 AGranted
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AssigneePhillips Petroleum Company
InventorWilliam M. Faulconer
Life of this patent
Estimating the term…
Abstract
Guiding unit protecting against the whipping motion of a free pipe end in a pipe straightening is provided for, which comprises hinged sections of a piece of plastic pipe.
Claims17
In a pipe straightening machine comprising a pipe straightening unit having a pipe inlet end and a machine axis defining the location of the pipe axis in the straightening unit
- the improvement comprising a noise level reducing pipe end guiding unit comprising
- (a) a first elongated section of essentially C-shaped cross section made from thermoplastic material,
- (b) a second elongated section of essentially C-shaped cross section made from thermoplastic material, said first and second cross section together in the closed position of the unit forming a cylindrical compartment confining the whipping end of pipes straightened in said straightening unit, said cylindrical compartment having an internal diameter which is at least twice as large as the largest diameter of the pipe or tubing to be treated in said straightening unit, and having an open end facing said unit,
- (c) hinging means connected to said first and said second sections with the hinge axis being parallel to the axis of said sections, to allow the opening of said cylindrical compartment,
- (d) support means supporting said first elongated section,
- (e) stiffening means associated with said second elongated section.
3 more elements
A guiding unit for confining tubing being treated in a tubing straightener machine comprising
- (a) a first elongated section of essentially C-shaped cross section,
- (b) a second elongated section of essentially C-shaped cross section, said first and second section together in the closed position of the unit forming a cylindrical compartment,
- said first section and said second section having been cut out of one piece of plastic pipe,
- (c) hinging means connecting said first and said second section with the hinge axis being parallel to the axis of said sections, to allow the opening of said cylindrical compartment,
- (d) support means supporting said first section,
- (e) stiffener means associated with the second of said sections.
3 more elements
Dependencies are inferred from the claim text.