Anti-Rotational Piston Pin Retention Button
AssigneeRace Winning Brands, Inc.
InventorsGregory Turkall, Matthew Newman, Jacob W. Balsiger, Cody Lyle Mayer, James Keith McWilliams
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Abstract
An improved piston pin retention button device having a body portion comprised of both a generally cylindrical portion and a surface, such as a planar surface, for mating engagement with a corresponding surface formed in a piston device. The inclusion of both the surface on the body portion and the corresponding surface in said piston device prevent rotation of the button device in the piston device. Other embodiments of a piston pin retention button device are also disclosed and prevent the unwanted rotation of the button device in the piston device, and permit the oil ring to function as designed.
Claims20
A piston pin retention button device for use with a piston having a generally cylindrical bore with a surface extending therefrom, comprising:
- a body portion comprised of a cylindrical portion for mating engagement with said cylindrical bore and a non-cylindrical portion for mating engagement with the surface.
A piston pin retention button device for use with a piston having a generally cylindrical bore with a first surface extending therefrom, comprising:
- a body portion comprised of
- a cylindrical portion,
- a second surface,
- a first end, and
- a second end.
A piston pin retention button device for use with a piston and comprising:
- a body comprised of
- an elongated member,
- a surface extending along at least a portion of the elongated member,
- at least one chamfer or radius,
- a first end,
- a second end, and
- an oil ring groove positioned at the second end, wherein the piston has an opening that can accommodate a shape of the body.
Dependencies are inferred from the claim text.