Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Tension adjuster or shifter driven by electrical or fluid motor
Reexamination Certificate
2005-01-06
2008-09-23
Johnson, Vicky A (Department: 3682)
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Tension adjuster or shifter driven by electrical or fluid motor
Reexamination Certificate
active
07427249
ABSTRACT:
In the check valve unit of a hydraulic tensioner a check ball guide has an inner wall surrounding a check ball. This wall is provided with a plurality of oil communicating grooves, formed by cutting away parts of the inner wall of the guide. These grooves carry oil past the ball from the oil supply toward a high pressure oil chamber of the tensioner, when the ball moves away from its seat.
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Howson & Howson LLP
Johnson Vicky A
Tsubakimoto Chain Co.
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