Patent ID: 11898434
Assignee: nan
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A measurement device for a wellbore comprising:
an upper and lower tool mount body, each comprising a laterally extending cylindrical bore that allows the upper and lower tool bodies to mount onto a tool-string;
a pair of side rails, each comprising an upper portion, a lower portion, and a center portion, wherein the upper portion of each of the pair of side rails is coupled to the upper tool mount body on opposing sides, wherein the lower portion of each of the pair of side rails is coupled to the lower tool mount body on opposing sides, wherein the center portion provides separation between the upper and lower tool mount bodies, and wherein the coupling of the pair of side rails to the upper and lower bodies form a combined upper/lower tool mount body; and
a pair of wheel suspension assemblies coupled to the combined upper/lower tool mount body on opposing sides, each comprising:
a wheel assembly comprising a traction wheel and an electronics package, wherein the electronics package is capable of recording in memory rotations of the traction wheel and frequency of the rotations;
an upper and lower biasing element; and
an upper and lower Scott Russel linkage, wherein the upper Scott Russel linkage couples the wheel assembly to the upper tool mount body and the upper biasing element, and wherein the lower Scott Russel linkage couples the wheel assembly to the lower tool mount body and the lower biasing element, and

wherein the upper and lower biasing elements of the pair of wheel suspension assemblies bias the upper and lower Scott Russel linkages of the pair of wheel suspension assemblies in an axially inward direction, thereby biasing the traction wheels of the pair of wheel suspension assemblies in a downward direction perpendicular to the axial inward direction.