Endless belt power transmission systems or components – Friction drive pulley or guide roll
Patent
1992-05-29
1993-06-29
Bui, Thuy M.
Endless belt power transmission systems or components
Friction drive pulley or guide roll
474 95, 474190, F16H 5532, F16H 5546
Patent
active
052229190
ABSTRACT:
A three-piece, all-plastic idler pulley assembly. There is a first unitary bell end portion having a first circular, inward-facing face with a concentrically-disposed, cylindrical shaft extending outward therefrom and perpendicular thereto. The cylindrical shaft has a concentric longitudinal bore therein. There is also a second unitary bell end portion having a second circular, inward-facing face with a concentrically-disposed, cylindrical projection extending outward therefrom and perpendicular thereto. The cylindrical projection is disposed within the longitudinal bore of the cylindrical shaft whereby the second circular, inward-facing, vertical face is disposed at the end of the cylindrical shaft perpendicular to the first inward-facing face and the second bell end portion is connected to the first bell end portion and spaced therefrom. A plastic cylindrical hub is rotatingly mounted on the cylindrical shaft between the first inward-facing face and the second inward-facing face.
REFERENCES:
patent: 1156120 (1915-10-01), Whitcomb
patent: 4114751 (1978-09-01), Nordin
patent: 5057058 (1991-10-01), Crudup
Bui Thuy M.
CalComp Inc.
Porter, Jr. Wm F.
Streck Donald A.
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