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AssigneeOwens-Brockway Glass Container Inc.
InventorMathias P. Welker
Estimating the term…
A test apparatus for measuring operating characteristics of a position sensor coupled to a parison mold plunger for glass gob weight control in a press-and-blow individual section glassware manufacturing machine includes circuitry for connection to the sensor to provide a signal as a function of electrical characteristics thereof, a switch network for selecting among a plurality of differing electrical characteristics to be measured, and a display responsive to the sensor signal for displaying the selected and measured electrical characteristic of the sensor to an operator. The measurement circuitry includes a measurement bridge for measuring resistance characteristics of the sensor, and an amplifier circuit for measuring sensor output as a function of position of the plunger. The switch network selectively connects the sensor signal to the measurement bridge and amplifier circuit in differing modes of operation of the test apparatus.
The combination of a test apparatus coupled to a position sensor for measuring operating characteristics of said position sensor coupled to a parison mold plunger in a press-and-blow individual section glassware manufacturing machine, said apparatus comprising:
A glassware manufacturing apparatus comprising a press-and-blow glassware manufacturing machine having a parison mold plunger with a core of magnetically permeable material and a coil electromagnetically coupled to said core, and means for connection to said coil and operable in differing modes of operation to measure electrical resistance of said coil, short circuit of said coil to ground, and output of said coil as a function of position of said plunger and said core.
A method of measuring operating characteristics of a parison mold plunger position sensor in a press-and-blow individual section glassware manufacturing machine, comprising the steps of:
Dependencies are inferred from the claim text.