Endless belt power transmission systems or components – Positive drive pulley or guide roll – With particular belt
Reexamination Certificate
2005-11-08
2009-12-22
Siconolfi, Robert A (Department: 3657)
Endless belt power transmission systems or components
Positive drive pulley or guide roll
With particular belt
C474S152000, C474S155000
Reexamination Certificate
active
07635314
ABSTRACT:
In a chain transmission in which a roller chain transmits power from a driving sprocket to one or more driven sprockets, the sprocket teeth are shaped so that at a location radially outward from the sprocket pitch circle, the distance between the front surface of each sprocket tooth to a radial reference line from the sprocket center through the center of the tooth root, is at least as great as the distance from the centerline to the front tooth surface at the pitch circle. The tooth faces merge smoothly with the tooth gap bottom, the sprocket root diameter is smaller than the root diameter according to ISO standards, and the radius of the arcuate tooth gap bottom is greater than the radius of the chain roller.
REFERENCES:
patent: 4108016 (1978-08-01), Muranishi
patent: 4492030 (1985-01-01), Beerens
patent: 4607601 (1986-08-01), Kohler
patent: 5066264 (1991-11-01), Romano
patent: 5170882 (1992-12-01), Tekathen et al.
patent: 5427582 (1995-06-01), Iwao et al.
patent: 6036614 (2000-03-01), Buddaria
patent: 6375589 (2002-04-01), Makino et al.
patent: 6637286 (2003-10-01), Friedrich et al.
patent: 6736744 (2004-05-01), Wigsten et al.
patent: 7101296 (2006-09-01), Cass et al.
patent: 2001/0049313 (2001-12-01), Rutz et al.
patent: 2005/0009655 (2005-01-01), Kubo et al.
patent: 2006/0084542 (2006-04-01), Kubo et al.
patent: 0 021 839 (1981-01-01), None
patent: 0 886 085 (1998-12-01), None
patent: 1 493 946 (2005-01-01), None
patent: 1 404 880 (1972-09-01), None
patent: 56-6698 (1981-01-01), None
patent: 58-203264 (1983-11-01), None
patent: 11-118024 (1999-04-01), None
patent: 3089902 (2000-07-01), None
U.S. Appl. No. 11/247,625, filed Oct. 11, 2005, Aizoh Kubo et al.
U.S. Appl. No. 11/264,317, M. Sonoda.
Ishida Hiroki
Kubo Aizoh
Sonoda Masatoshi
Howson & Howson LLP
Irvin Thomas W
Siconolfi Robert A
Tsubakimoto Chain Co.
LandOfFree
Chain transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chain transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chain transmission will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4101753