Invention Grant
- Patent Title: Vacuum insulated refrigerator structure with feature for controlling deformation and improved air withdrawal
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Application No.: US17146546Application Date: 2021-01-12
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Publication No.: US11448355B2Publication Date: 2022-09-20
- Inventor: Sunil S. Ekshinge , Arunkumar Harikrishnasamy , Lynne F. Hunter , Sai B. Krishna , Abhay Naik
- Applicant: WHIRLPOOL CORPORATION
- Applicant Address: US MI Benton Harbor
- Assignee: WHIRLPOOL CORPORATION
- Current Assignee: WHIRLPOOL CORPORATION
- Current Assignee Address: US MI Benton Harbor
- Agency: Price Heneveld LLP
- Main IPC: F16L59/065
- IPC: F16L59/065 ; F25D23/06 ; F25D29/00 ; F25D23/08

Abstract:
A vacuum insulated structure includes a first cover member of a stamped unitary sheet defining a perimeter portion positioned at a first planar level and a reinforcing member formed in the interior sheet extending to a second planar level spaced axially outward and disposed radially inward of the perimeter portion. The vacuum insulated structure also includes a second cover member and a thermal bridge interconnecting the first cover member and the second cover member at the perimeter portions thereof to define an insulating cavity therebetween. The insulating cavity is a sealed cavity having a vacuum drawn therefrom, and the first reinforcing member is configured to reduce deformation of the first cover member in at least an area adjacent the reinforcing member and to define a portion of a path for air flow out of the sealed cavity during a vacuum draw process.
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