A combination light and pressure relief vent (10) is disclosed which includes a housing (11), a valve assembly (12), and a light assembly (13). The housing include a valve body (16), port tube (17), and an outside louver (18). The valve body has a low pressure intake port (25), a high pressure intake port (26), and a low pressure exhaust port (27). The valve assembly includes a low pressure intake valve (40), a high pressure intake valve (42), and a low pressure exhaust valve (44). The light assembly includes a heat sink casing (51) which partially defines a heat chamber (52). The casing has a front wall (55) to which is mounted an LED module (57). A lens cover (61) is coupled to the front surface of the casing. Heat generated by the LED module is transferred through the casing to the heat chamber to warm the valve assembly.

A jumper drain for a refrigerator appliance, the jumper drain including a housing with a cavity defined therein and that is in fluid communication with a storage compartment of the refrigerator appliance. An inlet and an outlet extend from the housing and are both in fluid communication with the cavity. The outlet is disposed at a location that is offset from the inlet. A pressure equalizer opening is formed in the housing. The pressure equalizer opening is configured to provide fluid communication between the cavity and an ambient environment external to the refrigerator appliance in order to equalize a pressure differential within the refrigerator appliance.

The vent port employs a pair of mated housing parts that define a space for two flap valves. Each flap valve is formed of an aluminum bracket with an aperture for the passage of air and a silicone flap that closes over the aperture. The flap valves are oriented so that gravity enhances the closing of the flaps. Resistors are mounted on the brackets to heat the brackets at a low wattage. In one embodiment, the flap valves are vertically arranged over each other. In another embodiment, the flap valves are horizontally disposed in criss-crossing relation.

The present invention is directed to a system (100) maintaining chilled temperature in a cold storage (102) comprising: a plurality of coolant layers 104 uniformly placed on the roof of said storage (102); each coolant layer comprising multiple coolant plates (106) stacked in rows and columns; a compressor (110) generating airflow and circulating airflow in a circular pattern from top to bottom in said (storage 102); thereby maintaining temperatures in the range 25 C. to +25 C. in said storage; said plurality of coolant layers (104) being placed in close proximity to said compressor (110) for effectively circulating airflow; a coolant holder frame (108) for uniformly adjusting said multiple coolant plates (106) in said plurality of coolant layers (104), and allowing efficient airflow from top to bottom in said storage (102); base of said storage being provided with, holes (112), throughout for sucking the air circulated by said compressor (110) to improve the circulation of airflow in said storage (102); and said storage (102) being insulated to increase the thermal insulation coefficient to maintain the desired temperature in said storage, thereby freezing said coolant layers.

A refrigerator appliance with a freezer chamber in fluid communication with a duct door of a dispenser assembly of the refrigerator appliance. Upon a proximity sensor detecting a user within a proximity range, the duct door is opened to reduce the pressure differential between the freezer chamber and the surrounding ambient air, thereby reducing the opening force required to open the freezer door.

A vacuum insulated door for an appliance includes an outer wrapper that defines an evacuation port. An inner liner is coupled to the outer wrapper defining an insulating cavity therebetween. A base is coupled to the outer wrapper adjacent to the evacuation port. A servicing tube has a connecting end and a servicing end. The servicing tube is in fluid communication with the insulating cavity via the evacuation port. The connecting end is coupled to the base. A handle has first and second ends coupled to the outer wrapper and a center portion therebetween spaced-apart from the outer wrapper. The first end is coupled to the outer wrapper proximate the evacuation port. The servicing tube extends along an inner surface of the handle.

A method for controlling the concentration of a gas in a crisper drawer (100): by capturing the concentration of a freshness-preserving gas in a storage chamber (10) and comparing with a preset threshold, determining whether to feed the freshness-preserving gas into the storage chamber (10), or employing a timed feeding method to control whether to feed the freshness-preserving gas into the storage chamber (10). The method selectively feeds the fresh-preserving gas into the storage chamber (10), thus controlling the concentration of the freshness-preserving gas in the storage chamber (10) to be kept above a target concentration, significantly extending the time during which food is kept fresh, and at the same time, taking into consideration the economy of using the freshness-preserving gas.

A refrigeration appliance includes a freezer compartment. An ice maker return duct fluidly couples an ice maker compartment and the freezer compartment. A pressure sensor is positioned within the freezer compartment and is configured to detect a pressure differential between the freezer compartment and an external environment. A fan is positioned within the ice maker return duct and is configured to be activated when the pressure within the freezer compartment is lower than the external environment.

A domestic appliance has a carcass, a door for closing an inner space, a differential pressure sensor having a sensor membrane for identifying a difference in pressure between an interior air pressure in the inner space and an exterior air pressure in an outer space, a door opening aid for assisting the door opening process, and a control unit for the door opening aid which is dependent on the detected difference in pressure. The control unit is configured to detect a pressure curve of the difference in pressure and to control the door opening aid depending on the pressure curve that has been detected.

A domestic refrigeration appliance has a heat-insulated carcass which has an inner container with a coolable interior space for storing food, a refrigeration device for cooling the coolable interior space, an assisting device, and a door leaf mounted pivotable relative to the carcass for opening and closing the interior space or a drawer which in the closed state is pushed into the coolable interior space in order to close it, and in the open state is at least partially withdrawn from the coolable interior space. The assisting device has an air pressure sensor configured to determine a change of the air pressure within the interior space due to a pushing and/or pulling on the closed door leaf or the closed drawer. The assisting device is configured to open the closed door leaf or the closed drawer automatically at least partially depending on the determined change in the air pressure.