Patent ID: 7073272

Claim:
A gauge for assessing wear of a base and a shank of a trailer kingpin, the gauge comprising: a. a body sufficiently rigid to avoid noticeable deformation during measurements of said kingpin, the body comprising a front face, a back face, and sides; and b. an opening in said body passing from said front face to said back face, the opening comprising: i. a centrally disposed entrance area sized for entry of said kingpin; ii. to a first side of said centrally disposed area, a first notch sized to indicate a first specified degree of wear of the shank; iii. contiguous with said first notch, a second notch sized to indicate a second specified degree of wear of the shank, the adjacent arrangement of the first notch and the second notch capable of selected intermediate measurement of wear of the shank; iv. to an opposing side of said centrally disposed area, a third notch sized to indicate a first specified degree of wear of the base; and v. contiguous with said third notch, a fourth notch sized to indicate a second specified degree of wear of the base, the adjacent arrangement of the third notch and the fourth notch capable of selected intermediate measurement of the wear of the base.