Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – Pulley shifter
Reexamination Certificate
2004-08-12
2008-03-04
Charles, Marcus (Department: 3682)
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
Pulley shifter
C474S114000, C417S362000, C417S359000
Reexamination Certificate
active
07338400
ABSTRACT:
A belt tensioning system for a motor and a belt-driven blower each secured inside an air handling unit. The blower rotatably carries a first shaft, a first sheave and a bladed arrangement being secured to the first shaft. A second sheave secured to a second shaft is rotatably carried by the motor. A belt engaging the periphery of the first sheave and the second sheave urges the first sheave to rotate about the first shaft in response to the motor urging the second sheave to rotate about the second shaft. An adjuster having adjustment means is secured to the structure. Actuating the adjustment means in a direction urges the motor either toward the adjuster or away from the adjuster to vary the distance between the first sheave and the second sheave to vary the tension in the belt.
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Diamond Dennis Timothy
Edgell Robert H.
Pierjok Wayne Joseph
Reardon Anthony J.
Shah Jyotindra S.
Charles Marcus
Johnson Controls Technology Company
McNees Wallace & Nurick LLC
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