公开(公告)号：US20180311884A1

公开(公告)日：2018-11-01

申请号：US16016102

申请日：2018-06-22

Applicant: WHIRLPOOL CORPORATION

Inventor： Paul B. Allard ,  Dustin M. Miller ,  Subrata Shannigrahi ,  Hua Liu

IPC: B29C51/02 ,  B29C51/06 ,  B29C51/08 ,  B65D81/38 ,  F25D23/06

CPC classification number: B29C51/02 ,  B29C51/06 ,  B29C51/082 ,  B29C2791/001 ,  B29K2101/12 ,  B29K2105/04 ,  B29K2995/0067 ,  B29L2031/7622 ,  B65D81/3806 ,  B65D81/3823 ,  F25D23/064 ,  F25D23/065 ,  F25D23/085 ,  F25D2201/1262 ,  F25D2201/14

Abstract: A method of fabricating a vacuum insulated appliance structure includes molding a first layer of a first polymer material. A second layer of a second polymer material is molded to (e.g. over) at least a portion of the first layer, and a third layer of a third polymer material is molded to (e.g. over) at least a portion of the second layer to form a first component. At least one of the layers is impervious to one or more gasses. One or more additional components are secured to the first component to form a vacuum cavity. The vacuum cavity is filled with a porous material, and the vacuum cavity is evacuated to form a vacuum.

公开(公告)号：US20240337429A1

公开(公告)日：2024-10-10

申请号：US18132580

申请日：2023-04-10

Applicant: WHIRLPOOL CORPORATION

Inventor： Rahul Subhash Chhajed ,  Sumedh Sanjay Kokane ,  Subrata Shannigrahi ,  Abinash Sarma

IPC: F25D11/02 ,  F25D23/06

CPC classification number: F25D11/02 ,  F25D23/063 ,  F25D2201/14

Abstract: A refrigeration appliance includes a cabinet having a trim breaker defining a mullion region and a refrigerant system. The cabinet defines a first compartment and a second compartment. The refrigerant system includes a refrigerant defining a flow path through a compressor, a heat loop coupled to the compressor, a condenser coupled to the heat loop, and an evaporator assembly coupled to the compressor and the condenser. The heat loop is routed around a perimeter of the cabinet and through the mullion region. The evaporator assembly includes at least one first evaporator disposed in the first compartment and a second evaporator disposed in the second compartment. The at least one first evaporator may include a first roll bond evaporator coupled to a second roll bond evaporator in series with the first, or a wire-on-tube evaporator.

公开(公告)号：US20240280316A1

公开(公告)日：2024-08-22

申请号：US18112375

申请日：2023-02-21

Applicant: WHIRLPOOL CORPORATION

Inventor： Abinash Sarma ,  Rahul Subhash Chhajed ,  Subrata Shannigrahi ,  Vishal Jaywantrao Patil

IPC: F25D23/08 ,  F25D23/02

CPC classification number: F25D23/085 ,  F25D23/028 ,  F25D23/087

Abstract: A cabinet for a refrigerator includes: (a) a first inner liner defining a first cavity; (b) a second inner liner defining a second cavity; (c) an outer wrapper at least partially surrounding the first inner liner and the second inner liner; (d) a trim breaker coupling the outer wrapper, the first inner liner, and the second inner liner together, the trim breaker comprising (i) a first opening into the first cavity, (ii) a second opening into the second cavity, and (iii) a transition portion extending between the first opening and the second opening, the transition portion comprising a forward portion and a rear portion; and (e) a vacuum insulated panel disposed proximate the rear portion of the transition portion.

公开(公告)号：US20230234302A1

公开(公告)日：2023-07-27

申请号：US18127368

申请日：2023-03-28

Applicant: WHIRLPOOL CORPORATION

Inventor： Gregory Edward Bauman ,  Kevin Jay Cox ,  Gustavo Frattini ,  Lynne F. Hunter ,  Ryan Daniel Kannegieter ,  Rafael Dutra Nunes ,  Subrata Shannigrahi

IPC: B29C70/02 ,  B29C70/88 ,  B29C65/02 ,  B29K105/08

CPC classification number: B29C70/021 ,  B29C70/88 ,  B29C65/02 ,  B29K2995/0015 ,  B29K2105/0845

Abstract: A method for manufacturing an insulation member for a vacuum insulated structure includes the steps of forming a bag that has an opening using a single layer porous fabric, filling the bag with insulation materials via the opening, sealing the opening of the bag, and vibrating the bag to evenly distribute, de-aerate, and densify the insulation material to form a pillow. The method further includes the steps of compressing the pillow within a mold to define a compressed insulation member, and evacuating the compressed insulation member within an insulated structure to define a vacuum insulated structure.

公开(公告)号：US11519661B2

公开(公告)日：2022-12-06

申请号：US17370694

申请日：2021-07-08

Applicant: WHIRLPOOL CORPORATION

Inventor： Abhay Naik ,  Subrata Shannigrahi ,  Gustavo Frattini

IPC: F25D23/06 ,  B01D46/58

Abstract: An outer wrapper that defines a top wall, a bottom wall, a rear wall, and first and second side walls and includes an inner liner. A trim breaker seals the outer wrapper to the inner liner to define an insulation space. A single vacuum port is disposed on each of the top wall, the bottom wall, and the first and second side walls. A plurality of vacuum ports is disposed on the rear wall. An insulative material is disposed between the outer wrapper and the inner liner. A filter media is disposed proximate each vacuum port such that air can be drawn from the insulation space past the filter media and through each vacuum port.

公开(公告)号：US11085690B2

公开(公告)日：2021-08-10

申请号：US16303549

申请日：2017-01-18

Applicant: WHIRLPOOL CORPORATION

Inventor： Abhay Naik ,  Subrata Shannigrahi ,  Gustavo Frattini

IPC: F25D23/06 ,  B01D46/00

Abstract: An outer wrapper that defines a top wall, a bottom wall, a rear wall, and first and second side walls and includes an inner liner. A trim breaker seals the outer wrapper to the inner liner to define an insulation space. A single vacuum port is disposed on each of the top wall, the bottom wall, and the first and second side walls. A plurality of vacuum ports is disposed on the rear wall. An insulative material is disposed between the outer wrapper and the inner liner. A filter media is disposed proximate each vacuum port such that air can be drawn from the insulation space past the filter media and through each vacuum port.

公开(公告)号：US11035607B2

公开(公告)日：2021-06-15

申请号：US16302939

申请日：2017-01-18

Applicant: WHIRLPOOL CORPORATION

Inventor： Abhay Naik ,  Subrata Shannigrahi ,  Gustavo Frattini

IPC: F25D23/06 ,  F16L59/065

Abstract: An appliance includes an outer wrapper having a plurality of joined walls that define a plurality of vertices and edges. An inner liner is sealed with the outer wrapper to define an insulation space. A vacuum port is disposed on an external surface of the outer wrapper. A channel is in fluid communication with the vacuum port and extends along at least one edge defined by first and second walls of the outer wrapper. An insulative material is disposed between the outer wrapper and the inner liner. A filter media is disposed along the channel such that air can be drawn from the insulation space past the filter media, into the channel, and through each vacuum port.

公开(公告)号：US10807298B2

公开(公告)日：2020-10-20

申请号：US16016102

申请日：2018-06-22

Applicant: WHIRLPOOL CORPORATION

Inventor： Paul B. Allard ,  Dustin M. Miller ,  Subrata Shannigrahi ,  Hua Liu

IPC: B29C51/02 ,  F25D23/06 ,  B29C51/06 ,  B29C51/08 ,  B65D81/38 ,  B29K101/12 ,  B29K105/04 ,  B29L31/00 ,  F25D23/08

Abstract: A vacuum insulated appliance structure includes a molded first layer of a first polymer material. A second layer of a second polymer material is molded to (e.g. over) at least a portion of the first layer, and a third layer of a third polymer material is molded to (e.g. over) at least a portion of the second layer to form a first component. At least one of the layers is impervious to one or more gasses. One or more additional components are secured to the first component to form a vacuum cavity. The vacuum cavity is filled with a porous material, and the vacuum cavity is evacuated to form a vacuum.

公开(公告)号：US20240271860A1

公开(公告)日：2024-08-15

申请号：US18646157

申请日：2024-04-25

Applicant: WHIRLPOOL CORPORATION

Inventor： Gustavo Frattini ,  Anna Jedralski ,  Ashish Nigam ,  Subrata Shannigrahi

IPC: F25D23/06 ,  B29B9/16

CPC classification number: F25D23/064 ,  B29B9/16 ,  F25D2201/12 ,  F25D2201/14

Abstract: A filling system for a vacuum insulated structure includes a powder processor configured to load an internal cavity of the vacuum insulated structure with a heated and at least partially degassed vacuum insulation material. The powder processor includes a hopper with inner and outer hopper walls. The inner hopper wall includes an air permeable surface. A heater is positioned in a space defined between the inner and outer hopper walls. A feed screw is positioned along an inside edge of the inner hopper wall. A vacuum port is positioned on the outer hopper wall. An aperture exit is positioned at a bottom of the hopper. At least one evacuator is coupled to the vacuum port of the powder processor. The at least one evacuator is configured to couple to a vacuum port of the vacuum insulated structure and apply a vacuum to the internal cavity of the vacuum insulated structure.

公开(公告)号：US11971209B2

公开(公告)日：2024-04-30

申请号：US17272695

申请日：2018-09-05

Applicant: WHIRLPOOL CORPORATION

Inventor： Gustavo Frattini ,  Anna Jedralski ,  Ashish Nigam ,  Subrata Shannigrahi

IPC: F25D23/06 ,  B29B9/16

CPC classification number: F25D23/064 ,  B29B9/16 ,  F25D2201/12 ,  F25D2201/14

Abstract: A filling system for a vacuum insulated structure is provided having a powder processor including a hopper having an inner hopper wall and an outer hopper wall. The filling system also includes a vacuum insulated structure having a liner positioned inside a wrapper, a trim breaker coupling an outer liner edge and an outer wrapper edge to form a shell defining an internal cavity with at least one gas permeable feature positioned in the internal cavity configured to help apply a vacuum. A loading port is positioned on a surface of the shell. The powder processor loads the shell with a heated and at least partially degassed vacuum insulation material through the loading port while a vacuum is applied to the shell through the at least one gas permeable feature.