DR. EDWARD GREGORY FISHER, MD
Medical Practice at Herschel Ave, Cincinnati, OH

5203632, Apr 20, 1993

Apr 24, 1992

7/874323

Edward A. Fisher - Cincinnati OH
Keith L. Gehring - West Chester OH

The United States of America as represented by the Secretary of the Air
Force - Washington DC

G01K 1308, G01J 562, G01J 508, G01J 510

374144

A gas turbine pyrometer filtering method and system uses a pyrometer to measure the high pressure turbine blade temperatures using infrared optical detection techniques. The pyrometer signal can be cluttered by positively biased noise. The turbine speed and the pyrometer electrical signal are alternately sampled by an analog to digital converter, and several revolutions of pyrometer data are stored in the local RAM. A data compression algorithm then selects single samples, at evenly spaced intervals, which results in a given number of revolutions, containing an exact number of data points of aligned data in RAM. This data is passed to a clutter rejection filter which then passes only the lowest value for each of the points in all revolutions of data. Thus, the revolutions of acquired data are reduced into a single revolution of filtered data for the current sampling. This single revolution of filtered data in then enter into a circular queue and the last element is discarded.

5233254, Aug 3, 1993

Mar 27, 1992

7/858805

Edward A. Fisher - Cincinnati OH
Eike Richter - Cincinnati OH

General Electric Company - Cincinnati OH

H02K 122

310261

The invention comprises a motor including a stator having stator teeth. The motor further includes a rotor having rotor teeth wherein the rotor is mounted on a shaft which is supported by a bearing. According to the present invention, the rotor is conically shaped such that the gap between the rotor and stator increases in proportion to the distance from the bearing.