US Patent Issued on Oct. 27 for "Wheel pair for a stable mechanism to propel a mating concave spherical surface along two axes of rotation" (Texas Inventor)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,795, issued on Oct. 27.

"Wheel pair for a stable mechanism to propel a mating concave spherical surface along two axes of rotation" was invented by Winsten William Whaley (New Braunfels, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wheel pair for a stable mechanism to propel a mating concave spherical surface, each wheel having a center part rotatable around an axis and a plurality of surface engaging parts rotatably mounted on the center part about the periphery thereof. Each of the concave surface engaging parts is a roll having its surface convexly vaulted in longitudinal direction and being mounted with its axis extending obliquely wit...