The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 08, 2019

Filed:

Jun. 22, 2016
Applicant:

Acoustiflo, Ltd., Boulder, CO (US);

Inventors:

David Hustvedt, Boulder, CO (US);

Jerry Mills, Boulder, CO (US);

Assignee:

Acoustiflo, Ltd., Boulder, CO (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 25/14 (2006.01); F04D 29/28 (2006.01); F04D 29/42 (2006.01); F04D 27/00 (2006.01);
U.S. Cl.
CPC ...
F04D 25/14 (2013.01); F04D 27/003 (2013.01); F04D 29/281 (2013.01); F04D 29/4226 (2013.01);
Abstract

Embodiments of the inventive technology may include an automatically reconfigurable flow blocking damper to prevent back flow; applications include, e.g., centrifugal fans that may at times be susceptible to such back flow, such as centrifugal fans established in an array and discharging to a common space. A clutch may effect damper engagement with rotatable componentry such that the damper is engaged with rotatable componentry when the damper is in open configuration, and effect damper disengagement from rotatable componentry such that the damper is disengaged from rotatable componentry when the damper is in closed configuration. The clutch may, in particular embodiments, act to prevent rotational imbalance problems otherwise observed when the damper is engaged to and rotates with rotatable componentry.


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