Apparatus and method for determining feedscrew and barrel wear

Details Apparatus and method for determining feedscrew and barrel wear Apparatus and method for determining feedscrew and barrel wear

2007-01-30

2007-01-30

Larkin, Daniel S. (Department: 2856)

Measuring and testing

By abrasion, milling, rubbing, or scuffing

C073S001790, C277S317000, C277S321000

Reexamination Certificate

active

11330864

ABSTRACT:
An apparatus and a method for determining wear of a feedscrew and barrel combination includes measuring wear of the barrel using a gage plug in a measuring aperture in the barrel or an ultrasonic thickness gauge and measuring feedscrew wear with an eddy current sensor or a dial indicator mounted in the measuring aperture. A system gathers wear data from various production installations, analyzes the data to predict remaining life of the barrel and the feedscrew and generates an order for replacement parts to be manufactured and shipped just prior to the end of the remaining life.

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