Patent ID: 11959412
Assignee: ACHATES POWER INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 9:
10. The piston assembly of claim 7, wherein:
the piston pin includes a vertical axis that intersects the longitudinal axis and a horizontal axis orthogonal to the longitudinal axis and the vertical axis;
the first portion of the outer surface is centered on the longitudinal axis, the first portion lying on a circle having a diameter extending through the center; and
the outer surface includes a second portion and a third portion opposite the second portion, the first and second portions connecting the flat surface to the first portion on opposite sides of the vertical axis, wherein the second and third portions form lobes that project outwardly from the circle defined by the diameter, the lobes being vertically offset from the horizontal axis by an angular orientation.