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David J. Luttmer Patents
Inventor:
Luttmer; David J.
Address:
Glenshaw, PA
No. of patents:
6
Patents:




Patent Number Title Of Patent Date Issued
5092058 Measurement system magnetic coupler March 3, 1992
Disclosed is a measurement system magnetic coupler. The system comprises reader head apparatus for establishing a measurement related to the location of a physical structure moveable along a predetermined path. The system also includes a magnet for coupling the reader head apparatus to
4982509 Measurement system having multiple display orientations January 8, 1991
Disclosed is a measurement system having multiple display orientations. The measurement system comprises a reader head having a reader element, and a display module. The reader element is configured for lateral movement with respect to a calibrated reference member for making a measureme
4974332 Measurement system reader element standoff December 4, 1990
Disclosed is a measurement system having reader element standoff. The system comprises a calibrated reference member for use with a reader head in making a measurement. The system also includes a reader head comprising a reader element configured to move laterally with respect to the
4961269 Bi-directional direct read measurement system October 9, 1990
Disclosed is a measurement system for providing a direct reading of a position on either side of a reference position. The system comprises a reader head including a reader element configured to move laterally with respect to a calibrated reference member for making a measurement relativ
4873770 Capacitive measurement system October 17, 1989
Disclosed is a capacitive measurement system. The system comprises structure for generating a plurality of waveforms, a calibrated reference member for use with a reader head in making a measurement, and a reader element configured for lateral movement with respect to the calibrated
4450397 Electronic AC induction motor brake May 22, 1984
A braking control circuit for an alternating current motor is disclosed as having a winding and adapted to be coupled to an energizing control circuit for connecting a source of AC voltage to and for disconnecting the source of AC voltage from the winding. The braking control circuit


 
 
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