A refrigerator may include: a refrigerator compartment, a convertible compartment, an evaporator disposed in the convertible compartment; and a grill pan assembly forming a space where the evaporator is disposed by dividing the inside of the convertible compartment. The grill pan assembly may include an insulating member, a convertible compartment fan, a refrigerator compartment fan, and an opening device formed at the insulating member from the convertible compartment channel to the refrigerator compartment channel.

A freezer for a food product, includes a housing having an internal space with a processing atmosphere for reducing a temperature of the food product; and a pressure balance apparatus in communication with the processing atmosphere to restrict atmosphere external to the freezer from reaching the internal space, the pressure balance apparatus comprising at least one sensor exposed to the processing atmosphere for generating a first signal indicating an amount of oxygen (O.sub.2) sensed at the internal space, and a blower disposed to direct a pressurized flow of the processing atmosphere to the internal space responsive to the first signal. A related method is also provided.

A valve assembly for a climatization container and a method of manufacturing a valve assembly. The valve assembly includes a body portion, an air pressure relief valve and a drain valve. The air pressure relief valve is configured to allow air into the body portion. The drain valve is configured to allow a liquid out of the body portion. The body portion is configured to fluidly couple to the interior of a climatization container.

A refrigeration apparatus includes: a housing that surrounds an internal space (refrigeration chamber) where a refrigeration target is stored; and a negative pressure release port that includes a pipe (cylindrical body) attached to the housing so as to protrude into the internal space, a heating element provided in the pipe, and a rib joining the pipe and the heating element.

A household appliance includes an interior compartment, a door for closing the interior compartment and a drive facility for assisting with opening the door. The household appliance further includes a pressure sensing facility for detecting or sensing a difference between an interior pressure inside the interior compartment and an ambient pressure outside the interior compartment. The drive facility is configured to apply a driving force to the door as a function of the difference between the pressures.

Provided is a negative pressure release port that can prevent freezing in a channel. This negative pressure release port comprises: a cylindrical member made of a pipe in which a fluid can pass through and a base; a heating element disposed on one end inside the pipe; a retaining member that retains the heating element; a rib that connects an inner wall face of the pipe and the retaining member; and a check valve that is provided inside the base provided more toward the other end than the heating element, that allows air passing through the interior of the base to flow from the other end to the one end, and prevents flow from the one end to the other end.

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 refrigerator includes: an evaporator housing provided behind a storage and including an evaporator for cooling the storage; a machine room disposed below the storage and provided with a discharge plug connected to the evaporator housing; a defrost tray installed in a lower portion of the machine room to collect defrost water discharged through the discharge plug; and a drain hose assembly connecting the discharge plug and the defrost water tray to allow the defrost water to flow toward the defrost water tray. The drain hose assembly includes a drain cap connected to the discharge plug and limiting introduction of external air into the evaporator housing and a drain hose having one end connected to the drain cap and another end connected to the defrost water tray, and a length of the drain hose assembly is adjustable by joining between the drain cap and the drain hose.

In a transport container for transporting temperature-sensitive transport goods, comprising a chamber for receiving the transport goods and a casing which surrounds the chamber and is equipped with a door device, the door device comprises at least one door leaf for closing a door opening of the casing, wherein at least one inner circumferential seal is provided between the at least one door leaf and the door opening and at least one outer circumferential seal is provided between the at least one door leaf and the door opening. The inner and outer seals each comprise at least one sealing element that can be displaced by a pressure difference and that, when a predetermined pressure difference is exceeded, opens an air passage from the outside to the inside or vice versa, wherein a buffer space delimited by the inner and outer seals is arranged and that a temperature control element is provided to cool the buffer space.

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.