Measuring and testing – Toothed gear
Reexamination Certificate
2007-05-01
2007-05-01
Williams, Hezron (Department: 2856)
Measuring and testing
Toothed gear
C073S593000, C033S501190
Reexamination Certificate
active
11108212
ABSTRACT:
A forced harmonic vibration master gear for use in a device for detecting imperfections in a production gear includes a gear body having a plurality of gear teeth. Each of the plurality of gear teeth has a graduation of material added thereto extending from a form diameter of each tooth to an end of the tooth to decrease the pressure angle of the tooth. The forced harmonic master gear when used to test an unacceptable production gear, induces in the unacceptable production gear, when rotating, a vibrational force that is at least 50 percent greater than a vibrational force exhibited by the unacceptable production gear when a standard master gear is used to test the unacceptable production gear, in at least one band of 70 Hz to 150 Hz, 151 Hz to 300 Hz, 301 Hz to 550 Hz, 551 Hz to 1250 Hz and 1251 Hz to 2000 Hz. When the forced harmonic master gear is used to test an acceptable production gear, the acceptable production gear, when rotating, exhibits a vibrational force that is no more than 25 percent greater than a vibrational force exhibited by the acceptable production gear when a standard master gear is used to test the acceptable production gear.
REFERENCES:
patent: 2661542 (1953-12-01), Bean
patent: 3921304 (1975-11-01), Yagiela
patent: 4488359 (1984-12-01), Misson
patent: 4687556 (1987-08-01), Sutton et al.
patent: 4704799 (1987-11-01), Kobetsky
patent: 5016471 (1991-05-01), Och
patent: 5288556 (1994-02-01), Lemelson
patent: 5513442 (1996-05-01), Flair
patent: 6347548 (2002-02-01), Powrie
patent: 0 325 688 (1989-08-01), None
patent: 0 744 607 (1996-11-01), None
patent: 1599905 (1981-10-01), None
patent: 5384758 (1978-07-01), None
patent: 59 116525 (1984-07-01), None
patent: 06 307985 (1994-11-01), None
European Search Report dated Jul. 26, 2006.
“A new kind of gear measurement technique” from Measurement Science and Technology, IOP, Bristol, GB dated Jul. 1, 1997.
Breh Donald J.
Croll Mark W.
Illinois Tool Works Inc.
Levenfeld Pearlstein LLC
Saint-Surin Jacques M.
LandOfFree
Forced harmonic vibration master gear does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Forced harmonic vibration master gear, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Forced harmonic vibration master gear will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3754942