Endless belt power transmission systems or components – Friction drive pulley or guide roll – Including grooves or openings in cylindrical belt-engaging...
Reexamination Certificate
2005-03-23
2010-10-05
Siconolfi, Robert A (Department: 3657)
Endless belt power transmission systems or components
Friction drive pulley or guide roll
Including grooves or openings in cylindrical belt-engaging...
C474S240000, C474S249000
Reexamination Certificate
active
07806793
ABSTRACT:
A continuously variable belt drive transmission, including input and output pulleys each having axially opposed tapered surfaces, and an endless belt including a plurality of metal elements each having opposed side faces contacted with the respective tapered surfaces of the input and output pulleys. Each of the opposed side faces is formed with a plurality of microscopic projections and recesses arranged along a radial direction of the input and output pulleys upon being in contact with the respective tapered surfaces of the input and output pulleys. The tapered surfaces of at least the input pulley are formed with microgrooves that are radially spaced from one another and have a pitch not more than a width of each of the microscopic projections on the side faces of the metal element.
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Ito Yasuo
Katou Yoshiaki
Kino Nobuo
Yoshida Makoto
Foley & Lardner LLP
Jatco Ltd
Momper Anna
Siconolfi Robert A
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