Cam grooving machine
AssigneeVictaulic Company
InventorDouglas R. Dole
Life of this patent
Estimating the term…
Abstract
A device for cold working pipe elements has two or more cams, each having a gear which meshes with a pinion to turn all of the cams. Each cam has a cam surface with a region of increasing radius and may have a region of constant radius extending around a cam body. Each cam also has a traction surface extending around a cam body. A region of reduced radius in each cam surface is aligned with a gap in the traction surface of each cam. The regions of reduced radius and gaps provide clearance for insertion and removal of the pipe element between the cams to form a circumferential groove when the cams are rotated.
Claims36
A device for cold working a pipe element, said device comprising:
- a housing;
- a plurality of gears mounted within said housing, each one of said gears being rotatable about a respective one of a plurality of axes of rotation, said gears being positioned about a central space for receiving said pipe element;
- a plurality of cam bodies, each said cam body mounted on a respective one of said gears;
- a plurality of cam surfaces, each one of said cam surfaces extending around a respective one of said cam bodies and being engageable with said pipe element received within said central space, each one of said cam surfaces comprising a region of increasing radius and a region of reduced radius;
- a pinion mounted within said central space within said housing, said pinion meshing with said plurality of gears and being rotatable about a pinion axis.
A device for cold working a pipe element, said device comprising:
- a housing;
- a plurality of gears mounted within said housing, each one of said gears being rotatable about a respective one of a plurality of axes of rotation, said gears being positioned about a central space for receiving said pipe element;
- a plurality of cam bodies, each said cam body mounted on a respective one of said gears;
- a plurality of cam surfaces extending around each said cam body, each said cam surface comprising a region of reduced radius and a region of increasing radius, said region of increasing radius extending partially around said cam body and being engageable with said pipe element received within said central space, all of said cam surfaces on each said cam body being circumferentially aligned with one another;
- a pinion mounted within said central space within said housing, said pinion meshing with said plurality of gears and being rotatable about a pinion axis.
Dependencies are inferred from the claim text.