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US 6,612,042 B1Granted
Thread gage system and method
AssigneeTorque-Traction Technologies, Inc.
InventorsTrevor O'Bryan McKinney, Roderick Brent Dillon, Russell R. Bow
Life of this patent
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AssigneeTorque-Traction Technologies, Inc.
InventorsTrevor O'Bryan McKinney, Roderick Brent Dillon, Russell R. Bow
Estimating the term…
An inspection device for inspecting production of threaded members wherein the threaded members are inspected to ensure that when the threaded member is matched with a corresponding threaded hole in an automotive drive system, the threaded member will mate properly to serve its intended purpose. The apparatus of the invention is formed as a three-piece gage assembly that checks for lead errors and length errors set forth in the threaded member. The combination gage includes a substantially cylindrical gage spacer, a threaded ring gage, and a flush gage pin, which is associated with the threaded ring gage, having a low end mark and a high end mark thereon. The markings indicate proper/improper axial length of the threaded portion. The preferred embodiment is used to evaluate a drive pinion shaft of an automotive axle assembly.
A combination pinion thread size and length gage for a drive pinion shaft, said drive pinion shaft including a pinion gear member and a stem member extending from said pinion gear member, and a threaded portion having a length and threads integrally formed on said stem member, said combination gage comprising:
A method of measuring and inspecting thread size and length for a pinion gear shaft of a vehicle axle assembly, said method comprising the steps of:
Dependencies are inferred from the claim text.