Back to results
US 2016/0101454 A1Published application
Roller Set and Pipe Elements
AssigneeVictaulic Company
InventorDouglas R. Dole
Life of this patent
Estimating the term…
Abstract
A roller set for roll forming pipe elements has an outer roller that engages the pipe element at three points to prevent teetering of the pipe element. Inner and outer rollers cooperate to form pipe elements having a projection engageable by keys of mechanical couplings, the projection extending beyond the outer surface of the pipe element and increasing the pressure and bending performance of the combination pipe elements and coupling.
Claims74
A roller set for forming regions of a pipe element having an inner and an outer surface, said roller set comprising:
- an inner roller engageable with said inner surface;
- an outer roller engageable with said outer surface, said outer roller comprising:
- an outer roller body rotatable about a first axis;
- a first raised feature, engageable with said pipe element and extending circumferentially about said outer roller body and projecting radially from said first axis;
- a second raised feature, engageable with said pipe element and extending circumferentially about said outer roller body and projecting radially from said first axis, said second raised feature being positioned adjacent to said first raised feature;
- a third raised feature, engageable with said pipe element and extending circumferentially about said outer roller body and projecting radially from said first axis, said second raised feature being positioned between said first and third raised features.
3 more elements
A roller set for forming regions of a pipe element having an inner and an outer surface, said roller set comprising:
- an inner roller engageable with said inner surface and an outer roller engageable with said outer surface, said outer roller comprising:
- an outer roller body rotatable about a first axis;
- a first raised feature, engageable with said pipe element and extending circumferentially about said outer roller body and projecting radially from said first axis;
- a second raised feature, engageable with said pipe element and extending circumferentially about said outer roller body and projecting radially from said first axis, said second raised feature being positioned adjacent to said first raised feature;
- said inner roller comprising:
- an inner roller body rotatable about a second axis;
- a first depression extending circumferentially around said inner roller body;
- a second depression extending circumferentially around said inner roller body and positioned adjacent to said first depression;
- a projection extending circumferentially around said inner roller body and projecting radially from said second axis, said projection being positioned between said first and second depressions and having a radius greater than the radius of a portion of said inner roller proximate to said second depression;
- wherein
- when said inner and outer rollers cooperate to form said region of said pipe element said first and second raised features align respectively with said first and second depressions.
8 more elements
A pipe element, comprising:
- an outer surface surrounding a longitudinal axis;
- at least one end;
- a groove positioned in said outer surface proximate to said at least one end, said groove extending circumferentially around said pipe element, said groove comprising:
- a first side surface proximate to said at least one end;
- a floor surface contiguous with said first side surface;
- a second side surface contiguous with said floor surface, said second side surface being in spaced relation to said first side surface;
- and wherein
- said first side surface projects radially outwardly beyond a remainder of said outer surface of said pipe element;
- and
- a tooling mark positioned in said outer surface and extending circumferentially around said pipe element.
7 more elements
A pipe element, comprising:
- an outer surface surrounding a longitudinal axis;
- at least one end;
- a groove positioned in said outer surface proximate to said at least one end, said groove extending circumferentially around said pipe element, said groove comprising:
- a first side surface proximate to said at least one end, said first side surface being substantially perpendicular to said longitudinal axis;
- a floor surface contiguous with said first side surface and oriented substantially parallel to said longitudinal axis;
- a second side surface contiguous with said floor surface and oriented substantially angularly with respect to said longitudinal axis;
- and wherein
- said first side surface projects radially outwardly beyond a remainder of said outer surface of said pipe element and
- a tooling mark positioned in said outer surface and extending circumferentially around said pipe element.
6 more elements
A pipe element, comprising:
- an outer surface surrounding a longitudinal axis;
- at least one end;
- a groove positioned in said outer surface proximate to said at least one end, said groove extending circumferentially around said pipe element;
- at least a portion of said outer surface of said pipe element between said groove and said at least one end being a burnished surface.
1 more element
Dependencies are inferred from the claim text.