Process and apparatus for the quality control inspection of vehicle driving axles
Patent 4236407 Issued on December 2, 1980. Estimated Expiration Date: 
September 19, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 19, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References3712130 InventorsAssigneeApplicationNo. 06/077063 filed on 09/19/1979US Classes:73/118.1, Testing auxiliary unit702/35, Flaw or defect detection702/41, Force or torque measurement73/162, TOOTHED GEAR73/579Resonance, frequency, or amplitude studyExaminersPrimary: Gill, James J.Attorney, Agent or FirmInternational ClassG01M 13/02 (20060101)Foreign Application Priority Data1978-10-19 ITAbstractQuality control inspection of a vehicle driving axle comprising a differential unit and two half-shafts, is effected by measuring the acceleration transmitted from the axle to a support structure as the axle is driven against a resisting torque. The transmitted acceleration is measured in terms of its three-mutually-orthogonal components using accelerometers which output electrical signals to a processing unit. The unit processes these signals to derive comparison parameters which are then compared with reference values, to identify certain faults which may be present in components of the differential unit. | |
