Damper with adjustable resistance to blade motion
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 24, 2020
Grant Date -
Jan 4, 2018
app pub date -
Jun 26, 2017
filing date -
Jun 26, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A damper regulator for controlling the opening/closing characteristics of an HVAC damper has a swing arm coupled to the shaft on which the damper pivots. The swing arm has an arm carriage mounted to translate on the swing arm as the swing arm pivots, and a biasing spring connects the arm carriage to the damper regulator's housing, or to another suitable anchor. The translation of the arm carriage effectively adapts the characteristics of the biasing spring so that the damper need not be subjected to ever-increasing pressure to achieve greater airflow, or so that other damper opening characteristics can be achieved.
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