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.
Patent No.:
Date of Patent:
May. 03, 2022
Filed:
Apr. 27, 2017
Applicant:
Illinois Tool Works Inc., Glenview, IL (US);
Inventor:
Eric K. Larson, Cumberland, RI (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25D 17/06 (2006.01); F25D 17/04 (2006.01);
U.S. Cl.
CPC ...
F25D 17/065 (2013.01); F25D 17/045 (2013.01); F25D 2317/0653 (2013.01); F25D 2317/0683 (2013.01); F25D 2400/04 (2013.01);
Abstract
A refrigerator damper system employs a fluidic valve providing switching of air between refrigerated compartments without the need for a movable valve plate such as can be obstructed by ice. In one embodiment, a bidirectional fan provides switching from a first compartment to a second compartment and then from a second compartment to a first compartment with change of fan direction.