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US 4,539,246 AGranted
Socket casting with a cast-in ball and method of casting
AssigneeDeere & Company
InventorsDonald K. Landphair, James P. Doering
Life of this patent
Estimating the term…
Abstract
A method of forming a socket with a cast-in spherical ball having a central opening formed therethrough. The method includes preparation of a core assembly to incorporate the ball such that a portion of the circumference of the ball surface defines a portion of the casting cavity forming a race surface for the ball.
Claims18
A method of forming a socket casting with a cast-in ball having a central opening formed therethrough, said method comprising the steps of:
- preparing a core assembly including a spherical ball having a central opening formed therethrough;
- positioning the core assembly within a casting mold such that a casting cavity is formed, said casting cavity defining an annular ring having an inside race surface defined by the portion of the circumference of said ball surface intermediate the central opening and perpendicular to the axis of the opening;
- and
- charging molten material into the casting cavity to form said annular ring of cast material, whereby the spherical ball is rotatably attached within the annular ring such that the ball is free to rotate about its center in any direction.
1 more element
A method of forming a socket casting with a cast-in ball having a central opening formed therethrough, said method comprising the steps of:
- preparing a core assembly including a ball having an opening through its center and an outer surface defining a portion of a sphere;
- positioning the core assembly within a casting mold such that a casting cavity is formed, said casting cavity being in the form of an annular ring having an inside race surface formed by a portion of said outer surface;
- and
- charging molten material into the casting cavity to form said annular ring of cast material, whereby the ball is rotatably attached within the annular ring such that the ball is free to rotate about its center in any direction.
1 more element
Dependencies are inferred from the claim text.