Endless belt power transmission systems or components – Positive drive pulley or guide roll – With particular belt
Reexamination Certificate
2005-03-22
2005-03-22
Bucci, David A. (Department: 3682)
Endless belt power transmission systems or components
Positive drive pulley or guide roll
With particular belt
C474S148000, C474S202000, C074S061000, C244S017270
Reexamination Certificate
active
06869375
ABSTRACT:
An active vibration control system provides a mass which is movable through a large excursion while minimizing the system size in two of three dimensions to compensate for sensed vibrations. A first rotating member is rotatable about a first axis and a second rotating member is rotatable about a second axis to drive a belt mounting a mass. The first axis is offset from the second axis such that as the members are rotated, the belt is driven about an elongated path. This arrangement generates an impulsive vibratory force as the mass passes over each of the rotating members and quickly changes direction. A belt including a sinusoidal mass distribution generates a vibratory force that is a smooth sinusoidal output. Multiple systems are suitably usable in conjunction with one another to provide a wide range of vibratory outputs.
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Jolly, Mark R., Bender, Jonathan W. Bender and Carlson, J. David, Properties and Applications of Commercial Magnetorheological Fluids, Thomas Lord Research Center, Cary, NC.
Chain Drives, Fundamentals of Mechanical Design, pp. 338-340.
Bucci David A.
Carlson & Gaskey & Olds
Johnson Vicky A.
Sikorsky Aircraft Corporation
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