Endless belt power transmission systems or components – Positive drive pulley or guide roll – With particular belt
Reexamination Certificate
2005-10-14
2010-06-22
Siconolfi, Robert A (Department: 3657)
Endless belt power transmission systems or components
Positive drive pulley or guide roll
With particular belt
C474S157000
Reexamination Certificate
active
07740555
ABSTRACT:
An improved sprocket profile for engaging a roller or bush chain smoothly and preventing radial impact with the root of the tooth during engagement. Contact between the sprocket teeth and the roller chain is altered by providing teeth with a root radius equivalent to that of the chain engaging component, with the center point of the root radius located one chordal distance inside the sprocket's pitch circle. This profile allows chain rollers or bushings to impact sprocket teeth tangentially on their flanks rather than radially on their tooth root.
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Borg-Warner Inc.
Bowes Stephen
Brown & Michaels PC
Siconolfi Robert A
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