HVAC actuator noise reducer
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United States of America Patent
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Mar 1, 2016
Grant Date -
Apr 17, 2014
app pub date -
Oct 12, 2012
filing date -
Oct 12, 2012
priority date (Note) -
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Abstract
An actuator noise reducer reduces the noise output of an HVAC actuator. The noise reducer has a spring arm with a sliding bearing surface which is pressed against a side of the rotating motor shaft. The spring arm introduces a generally radial force on the motor shaft, taking up bearing play and gently pressing the motor shaft into its bearing. A cylindrical hoop mount of the noise reducer mates with and encircles a cylindrical portion of the electrical motor adjacent the shaft for mounting the actuator noise reducer on the motor by axial sliding.
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