Endless belt power transmission systems or components – System including spaced pulleys interconnected by a belt
Reexamination Certificate
2005-10-25
2005-10-25
Bucci, David A. (Department: 3682)
Endless belt power transmission systems or components
System including spaced pulleys interconnected by a belt
C474S156000, C474S160000
Reexamination Certificate
active
06958026
ABSTRACT:
An improved tooth profile for a roller chain sprocket enables noise reduction from impact and polygonal action during the meshing process. The profile of the engaging flank consists of three portions which are the seating, impact and distal portions all three of which are arcs with well-defined radii and arc centers. The profile of the disengaging flank is determined in accordance to a modified form of the JIS standard in which the sprocket pitch is smaller than the roller chain pitch. The impact point is located at the tangent point, thus permitting a gradual change of the roller velocity, thereby lessening the impact level and the effects of polygonal action.
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Liu Gui Rong
Lu Chun
Noguchi Yoshihisa
Quek Kwang Peng
Wang Yu Yong
Bucci David A.
Institute of High Performance Computing
Martine & Penilla & Gencarella LLP
Sunstar Logistic Singapore Pte Ltd.
Van Pelt Bradley J.
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