Machine element or mechanism – Gearing – Teeth
Reexamination Certificate
2009-05-06
2011-11-08
Nguyen, Tran (Department: 2834)
Machine element or mechanism
Gearing
Teeth
C074S458000, C310S083000
Reexamination Certificate
active
08051738
ABSTRACT:
A rotor gear includes a rotor gear body having involute teeth that each have an involute surface that extends between a tooth tip and a tooth base. The involute surface includes at least reference points A-D, with reference point A near the base, reference point D near the tip, reference point B between reference points A and D, and reference point C between reference points B and D. The reference points A-D have associated respective roll angles, εA-D, between a corresponding first line that is perpendicular to the involute surface at the given reference point A-D and a second line that is tangent at a reference point that lies on a terminal end of the involute surface at the tooth base to a reference base circle having a center origin at the center axis.
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Brust Eric A.
Lemmers, Jr. Glenn C.
Carlson Gaskey & Olds P.C.
Hamilton Sundstrand Corporation
Nguyen Tran
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