Abstract: A refrigerator includes a food storage space, an evaporator for generating cool air, and a fan for circulating the cool air to the storage space. An air diverting valve is provided which is movable in response to an opening of a door to the storage space for redirecting the air to form an air curtain across an opening of the storage space. The air diverting valve can be moved by a motor, or by a spring.

Abstract: An air curtain fan driving controlling method and apparatus control a driving of an air curtain based on the temperature inside a refrigerating compartment of a refrigerator and the temperature outside a refrigerating compartment thereof. In the method, a reference temperature for controlling a temperature inside a refrigerating compartment is set. The normal cool operation for the refrigerating compartment is executed. It is judged whether an open door for the refrigerating compartment is detected during the normal cooling operating. In the previous step, when the door-close is detected, the temperature inside the refrigerating compartment and the temperature outside the refrigerating compartment is detected. An absolute value between a difference of the temperature inside a refrigerating compartment and the temperature outside the refrigerating compartment is compared with the set reference temperature to control a driving of the air curtain fan.

Abstract: A refrigeration system has an evaporator compartment containing a refrigeration evaporator and a refrigeration heat exchanger, a liquid line for conveying liquid refrigerant from a compressor through the heat exchanger to the evaporator, and a suction line for conveying vaporized refrigerant from the evaporator through the heat exchanger in heat exchange relationship with the liquid refrigerant flowing therethrough to a compressor. The refrigeration system also has a compartment to be cooled, and an air flow passage associated with the compartment for cooling thereof, the air flow passage passing through the evaporator compartment whereby the air flow passes over the liquid line and evaporator, the liquid line being thermally insulated from the air passing thereover. The refrigeration system may be used in a refrigerated merchandising display case.

Abstract: A refrigerator has a cool air duct having ports opened at areas adjacent to openings of a freezing compartment and a fresh food compartment respectively, a blowing fan for discharging air in the cool air duct so that air curtains for shutting off the openings of the freezing compartment and the fresh food compartment are generated, and a device for opening/closing the ports. When doors are opened, the opening/closing device opens the corresponding ports to the opened doors. Thus, the air curtains are formed both at the freezing compartment and the fresh food compartment.

Abstract: A refrigerator has a device for generating an air curtain for shutting off an opening of a cooling compartment, and plates are disposed at a cool air discharge port of the air curtain generating device. The plates control the discharging direction of the cool air according to the opening and closing of a door. When the door is opened, the air curtain for preventing the leakage of cool air is generated by the plates. When the door is closed, the cool air is supplied at the area adjacent to the door and the inner spaces of the pockets formed at the door. Thus the foodstuffs in the cooling compartment are rapidly and uniformly cooled.

Abstract: A refrigerator has a device for generating an air curtain, and the air curtain generating device operates according to the sensor for sensing the opening/closing of the door and the temperatures in the cooling compartment sensed by temperature sensors. The air curtain is generated when the door is opened and when the temperature of the area near the door is higher than the temperature of the area distant from the door. Thus, the area near the door in the cooling compartment is efficiently cooled when the door is closed, and the operation for generating an air curtain is exactly performed when the door is opened even if the sensor for sensing the opening/closing of the door is out of order.

Abstract: A refrigerator provided with an air curtain generator in a refrigerating room is disclosed. A supply duct for an air curtain is installed at the uppermost portion of the refrigerating room. A crossflow fan is provided within the supply duct, and a supply port is formed at a terminal end of the supply duct adjacent to a door for the refrigerating room. The supply port is slit-shaped and extends along a width direction of the refrigerating room. At least one step is provided on a lower surface of the inside of the supply duct. The supply duct is communicated with a suction duct constituting a cooling system of the refrigerator. When the door is opened, the air curtain is formed over the open side of the refrigerating room to block the invasion of the surrounding air.

Abstract: Provided is a low temperature display case, which comprises: a duct that is so formed that it communicates with a rear and a lower portion of a storage chamber having an opening at the front, an evaporator that is provided upright in a duct at a rear location, a blower for discharging, from an upper edge of the opening of the storage chamber, air that is cooled at the evaporator by heat exchange, a drain pan that is located at a bottom level of the duct and that is inclined downward toward a drain hole, defrosting heaters that are provided in a lower portion of the duct and that are located forward of a position under the evaporator, and a sharply sloped portion that is provided on the drain pan below the evaporator and that is inclined at a greater angle toward the drain hole than is the drain pan; wherein to defrost the evaporator a refrigerant at a high temperature is fed into the evaporator, and heat is generated by the defrosting heaters.

Abstract: A refrigerated display case having a configuration resulting in a restricted air flow recirculation channel, such as a wedge shape, and comprising a housing having a bottom, a top, and defining a display space and an access thereto, the housing having a lower well and at least one shelf above the well, a refrigeration coil beneath the well, an air inlet to the coil from the display space, and an air outlet from the coil, at least one fan adjacent the coil for propelling air from the air inlet, through the coil, to the air outlet, an air flow opening from the outlet the well, the display case having a configuration forming a restricted vertical air flow channel from the outlet up the case to the top, an air discharge opening from the channel down toward the air inlet to the coil, and at least one fan in the channel adjacent the top for drawing air up the channel and discharging the air through the discharge opening.

Abstract: A refrigerated display case having an upper display space for food products at a temperature above freezing, and a lower wall display space for food products at a temperature below freezing, a single set of refrigeration coils adjacent said well, with refrigerated air propelled from said coils during the refrigeration cycle to both the upper and lower spaces, including across the open top of the lower space, and through the upper space between its shelves and its front doors, and with warmed defrost air during the defrost cycle flowing through the coils and circulated only around the lower space while air in the upper space remains substantially dormant.

Abstract: An arrangement for furnishing refrigerated or frozen goods (14) includes a container (12) with at least one compartment (13), which is filled with the goods from above and at the bottom, has an opening (18) through which goods are removed. The container (12) is surrounded by a hood (22). The goods are refrigerated by circulating air (34, 36). A first portion of the circulating air is brought to flow in a gap (24) between the container (12) and the hood (22) and after that in an air curtain (38) over the opening (18). A remaining portion of the circulating air flows through the compartment (13) and is reunited with the first portion of circulating air at the opening (18).

Abstract: A method of cooling a vending machine in which the products are stored behind a closable opening at the front side of the vending machine, said opening being opened for a direct removal of the product at the activation of the vending machine, said method implying that a flow of cold air (36, 37, and 42) is directed substantially between the products adjacent the delivery area and the opening. The vending machine comprises a plurality of drums (3) rotatably journalled about a vertical axis, as well as a front window adapted to be opened for a direct access to at least one removal opening (8). The flow of air in question is provided by means of a vertical outlet slot (22) directed substantially tangentially towards the front side of the drums (3) and a horizontal downward outlet slot (26).

Abstract: A refrigerated merchandiser comprising an insulated cabinet defining a product zone and having an air cooling and circulating system for maintaining product zone temperatures, the insulated cabinet including a vertical section defining one side of the product zone, an interior frame for structurally supporting the vertical cabinet section, and a load-bearing external frame assembly for supporting the entire insulated cabinet including an external vertical frame located on the outside of the vertical cabinet section and being secured to the interior vertical frame.

Abstract: The present invention relates to a display cabinet for displaying food products or the like in a shop. A refrigerated cabinet for displaying products includes at least two substantially superposed shelves (1), at least one cover panel, means for guiding and circulating cool air towards the product display shelves, and includes a cover panel made of a material that is thin and lightweight and that includes card, the cover being removably mounted on a base (8) including means for guiding and circulating cool air. The technical field of the invention is that of manufacturing refrigerated cabinets.

Abstract: The invention relates to a circulative catering bar equipped with warming system and cold air circulation system which comprises a warming system in which a heater (26) is incorporated in a plate mounted on the crescent chain, a cold air circulation system having cold air paths formed beneath the refrigerating conveyor and circulating cold air onto the refrigerating conveyor, and a setting board (56), disposed above said warming system, and it is possible to cyclically convey ordinary goods, warmed goods and refrigerated goods at the same time by cyclically conveying ordinary goods and warmed goods on a crescent chain of the warming system and cyclically conveying refrigerated goods on the refrigerating conveyor.

Abstract: A refrigerated cabinet for preserving and displaying foodstuffs, the cabinet supporting rows of trays which carry the foodstuffs an providing a cool air flow both over the trays and under the trays to cool the foodstuffs from above and directly cool the trays. The cabinet may also include an overhead duct through which cool air flows to create an air curtain over the trays.

Abstract: An improved design for a refrigerated display case which significantly enhances airflow characteristics by including a gradual radius within the transition sections in areas where the refrigerated airflow path must change directions to greatly facilitate smooth flow of refrigerated air therethrough. Also disclosed is an improved construction for providing insulation for a refrigerated display case including an inner and outer panel spaced apart to define an insulation holding chamber therebetween and including thermal breakers at the ends thereof for maintaining the panels in spaced relation to each other and for closing off the end section thereof to retain insulation therein. The inner insulation panel defines the outer boundary of the airflow path.

Abstract: A refrigerated display case with an improved air flow control system located in the lower portion thereof along with an improved means for controlling spillages and other contaminants which commonly fall downwardly into the tank or lower area thereof. The spillage controls including a waste control outlet along with an inclined coil cover and fan housing as well as a deck plate extending thereover. The deck plate also defining the plenum chamber within which the inclined fan housing and inclined coil and coil cover are located. A front bracket is included which allows attachment of a return grill thereto along with a support shelf for holding the refrigeration line means away from the waste receiving outlet.

Abstract: A heat transfer device for cooling a fluid has powered means for moving the fluid to create a primary fluid flow, a heat exchanger, and direction controlling surfaces for directing the primary fluid flow toward and through a first portion of the heat exchanger, thereby cooling the fluid flow. The direction controlling surfaces then split the primary fluid flow into a first and second subsidiary fluid flow, and direct the second subsidiary fluid flow through a second portion of the heat exchanger, thereby cooling it to a second temperature which is lower than the first temperature.

Abstract: A low temperature food merchandiser having a cabinet with an open front product area, a primary cold air system for maintaining substantially constant frozen food temperatures of 0.degree. F. or ice cream product temperatures of -5.degree. F. in the product area including the formation of a series of vertical curtains of primary low temperature air extending across the open front of discrete product area sections, a secondary air system protecting the primary air curtains, and the primary system also including primary evaporator means constructed and arranged to operate at elevated coil temperatures in the range of -5.degree. F. to -8.degree. F. to maintain 0.degree. F. product temperature or coil temperatures of -12.degree. F. to -15.degree. F. to maintain -5.degree. F. product temperatures, and including high efficiency reverse air cycle defrost means for periodically defrosting the primary cooling means.

Abstract: A low temperature food merchandiser having a cabinet with an open front product area, a primary cold air system for maintaining substantially constant low temperatures of at least 0.degree. F. in the product area including the formation of plural primary low temperature air curtains across the open front, a secondary air system protecting the primary air curtains, and the primary system also including primary evaporator cooling means constructed and arranged to operate at elevated coil temperatures in the range of -5.degree. F. to -2.degree. F. to maintain the 0.degree. F. product area temperature, and including reverse air cycle defrost means for periodically defrosting the primary cooling means.

Abstract: In order to cool food in a display compartment, a cold air stream is generated by refrigeration means, preferably a fan, an evaporator and a condenser, and is passed through the display compartment from its inlet to its outlet. The air temperatures at the inlet and outlet may be sensed by sensors in which case control means are responsive to a signal from the output of both the sensors and control the operation of the refrigeration means to maintain the air temperature in the display compartment within a narrow predetermined range.

Abstract: A refrigerated food preparation table having an evaporator cooling coil and heat transfer fins which are baffled to create two air flows which are cooled to different temperatures. One air flow passes through a laminar air screen and across an open top of a food container, and the other f low passes along the outer surfaces of the food container, thereby cooling the food container and a volume defined therein. This configuration preferably cools the entire volume within the food container to a temperature below 40' F., yet remaining above 32' F. The laminar air screen may be disassembled and separated for the purpose of cleaning.

Abstract: A food preparation table includes a cabinet with a food preparation surface and a heat-insulated food storage compartment. An evaporator and a fan are disposed inside the cabinet so that air moves through the evaporator upon operation of the fan. In one embodiment, a temperature controller operates the evaporator fan only during operation of the refrigeration equipment in the cooling mode. A condiment plenum is disposed adjacent to the preparation surface and includes at least one condiment plenum wall that defines a complex structure. At least one open top condiment pan is received by the condiment plenum. A cool air supply system, which can include an auxiliary fan, one or more baffles, and air flow dams and guides, efficiently distributes cool air from a localized site, to widely dispersed locations, some of which being inside the storage compartment and some of which being exposed to the ambient atmosphere.

Abstract: This open show-case has inner and outer air ducts, a first evaporator and a first blower in said inner duct (an inner evaporator and an inner blower, respectively), and a second evaporator and a second blower in said outer duct, said blowers circulating the air to form at least two layers of air curtains running between respective upper ports at the upper end of the front opening of said show-case and respective lower ports at the lower end of said opening.

Abstract: Air-conditioned display case has two separate inside rooms divided by a partition having a plurality of partition members which can be individually opened. One of the two rooms is a display room with a front access opening situated on the front side of the partition for displaying the merchandise therein. Display shelves for displaying merchandise thereon are disposed in the display room extending frontwardly from the partition. The other room is a walk-in supply room situated on the rear side of the partition. Supply shelves are disposed in the supply room extending rearwardly from the partition. The supply room also has a closeable entrance and preliminary storage shelves so that the merchandise can be brought into the supply room by a work personnel through the entrance and can be preliminarily stored therein. The merchandise can further be placed on the supply shelves and, subsequently, slidingly moved onto the display shelves past the partition.

Abstract: A display case includes a display case housing having an open upper end. Fitted over the open upper end is a removable cooling unit which has an inlet opening and an outlet opening both in communication with the interior of the display case. The cooling unit draws air into the cooling unit, cools the air, and recirculates it into the display case. The cooling unit can be removed from the upper end of the housing for repair, and can be replaced with a similar unit so that the display case can continue to be used. A modified form of the invention includes a cooling unit which is insertable into the display compartment of the display case adjacent the bottom wall thereof.

Abstract: An open front refrigerated display case having an improved ambient air defrost system which includes a housing with a display compartment area for displaying articles therein and an open front area to facilitate placement and removal of the articles, a main refrigeration duct extends throughout the housing having a primary inlet above the open front area and a primary outlet defined below the front area, a primary refrigeration coil is positioned within the primary refrigeration duct for cooling of air passing therethrough and a primary fan device is positioned within the primary refrigeration duct to facilitate drawing of air through the air inlet and expelling of refrigerated air through the air outlet in such a manner as to form an air curtain across the open front area. An ambient air defrost system is included having an ambient air circulation device such as a fan and an ambient air drive means for powering thereof.

Abstract: A low-temperature show case comprising an upper case having a front opening to be covered with revolving transparent glass doors, and a lower case having upper opening to be covered with slidable transparent glass doors, said upper case being constructed in the form of oriel with its transparent side walls oriented oblique towards the front opening, and being provided with an outlet for effusing cold air to form an air curtain just behind the opening, the outlet having larger width than the front opening so as to prevent the ambient air to flow into the case.

Abstract: A circulative catering table provided with an endless conveyer circulating according to the circulating course supported in a horizontal plane at the designated height by a base frame and supporting the foods at the designated intervals, an appropriate number of counters for eating and drinking disposed outside of the endless conveyer and a cooling system for the foods on the endless conveyer. The circulative catering table has a first cool air path forming a lower opening by providing a gap between the outside of the endless conveyer and the counter and extending downwards of the base frame in communication with the lower opening and a second cool air path disposed in opposition to the lower opening against the endless conveyor, with the lower part thereof in communication with the first cool air path and with the upper opening at the upper end that uniformly blows out the cool air in a direction crossing the endless conveyer and toward the space above the lower opening.

Abstract: A low-temperature showcase in which a double air curtain can be formed for a commodity inlet-outlet opening provided in one side of the case main body having a heat exchanger in an inner passage positioned upstream of and at a predetermined distance from another heat exchanger in an outer passage with respect to the same direction of air flows in the two passages, a partition wall defining the inner and outer passages and having a window at a portion thereof between the two heat exchangers, a passage change-over device for opening or closing the window to close or open the inner passage downstream of the window, a blower in each of said passages, and a control unit for giving instructions to the blowers and the passage change-over device for their operation, the control unit instructing the blowers to move air through the two passages in a first direction when at least the inner passage heat exchanger is operating for refrigeration and the control means instructing the passage change-over means to open the wi

Abstract: A refrigerated fixture which has an opening for enabling access to the interior of the fixture, the fixture includes a pair of arcuate track members adapted to be mounted in contact with the opening and a side of the fixture, a sectional door mounted between and in the track members for sliding movement between a closed position and an open position. The fixture also includes an evaporator coil for providing refrigerated air, a fan for circulating the refrigerated air, a nozzle disposed around the opening of the fixture, and a switch which when contacted by the door operates the fan for circulating the refrigerated air to be discharged through the nozzle into the opening.

Abstract: A refrigerated display case is disclosed which has an interior cabinet and an exterior member. A refrigerating circuit includes evaporators for refrigerating and heaters for defrosting a frost accumulated on the evaporators located forwardly of the evaporators. A circulating mechanism forces air into contact with the refrigerating circuit. A passage directs the refrigerated air. The display case is defined by a front opening for access to the interior thereof. At least two air inlets and corresponding outlets extend across opposed edges of said front opening. The passage includes at least inner and outer conduits which communicate with the respective outlets and inlets, the passage being defined between the interior cabinet and the exterior member. A circulating mechanism operates to drive separate air steams through the passage and across the front opening in an innermost stream and an outermost stream.

Abstract: An opened front refrigerated display case having multiple front refrigeration control air curtains and a supplemental refrigerated air curtain passing over the bin area thereof to aid in maintaining of the bin area of the display area of the case in an efficiently refrigerated condition and to minimize the accumulation of frost therein. The display case includes multiple inlets in the upper area above the opened front area and multiple outlets in the lower area below the opened front area to facilitate multiple curtains of controlled air passing thereover. The innermost lower inlet is adapted to also receive therein refrigerated air from a bin cooling air curtain which passes approximately horizontally over the bin area. Air is admitted into the curtain by a bin outlet positioned immediately adjacent to the main refrigeration flow duct path positioned immediately behind the bin area.

Abstract: A refrigerated display case includes a cabinet having a top opening, at least one. A sliding door move to cover and uncover the opening, and a night cover. The night cover can be stored inside the cabinet and pulled out to cover at least one of the sliding doors at night. A spacing member is disposed on the trailing edge of the door frame and keeps the night cover from sagging and contacting the door. Therefore, the sliding door can be opened and closed easily since friction between the sliding door and the night cover is eliminated by the spacing member. Furthermore, the weight, structure, and external appearance of the night cover need not be changed.

Abstract: A display case extender adapted to be mounted upon and in front of the front case wall of an existing refrigerated grocery case, including a display bin for displaying groceries in front of the grocery case and an air intake duct system for drawing cool air from the refrigerated case behind the front case wall to a discharge outlet for discharging cool air at the rear and above the display bin, and an exhaust duct system for drawing the warmer air from the front of the display bin back across the front case wall to a return air intake in the front case wall.

Abstract: A refrigeration and display assembly includes a display container with an open top, a refrigeration enclosure beneath and supporting the container, and an outer housing surrounding the enclosure and display container. A pair of openings formed in the display container floor are positioned for respective alignment with inlet and outlet openings of the refrigeration enclosure, when the container and enclosure are engaged. The floor and side walls of the container are constructed of pairs of panels fastened together. Grooves are formed in one of the panels of each pair, whereupon the joinder of the panels forms fluid channels for circulation of air between the container and enclosure. The housing surrounds and hides the refrigeration enclosure from view, while maintaining the display enclosure in a snug, nesting fashion.

Abstract: A frost resistant, horizontal folding door for a freezer room has heater assemblies in the header, jambs and for simultaneously heating the door curtain and the floor of the doorway. The heater assembly in the header can be a mat of open mesh fiber glass having a serpentine array of an electric resistance heating wire bonded to it. The heater assembly in the jamb can be a formable electrical resistance heater within the structure of the jamb. The heater assembly, for the door curtain and the floor of the doorway can be an electrical radiant heater disposed on the header and directed at the curtain and the floor.

Abstract: A low-temperature showcase comprises a heat insulated wall, on the top of which an opening for putting-into or taking-out commodities is formed. The inside of the heat insulated wall is divided into an air passage and a storage chamber thereover by a dividing plate which is installed inside this heat insulated wall in a nearly horizontal fashion. The air passage is formed in a manner that the cross-section thereof is of a U-shape, and the storage chamber is formed surrounded by this air passage. At both ends of the air passage, vent ports are formed at the positions facing each other through the opening of the heat insulated wall inbetween. The air passage is divided into two parts by a fan case corresponding to the respective vent ports and a blast fan which can rotate reversibly is supported by this fan case. In each halved air passage, an evaporator is installed in the vicinity of the vent port, and when one of the evaporators is put in cooling operation, the other evaporator is subjected to defrosting.

Abstract: A refrigerated display case having an improved air outlet nozzle is disclosed. The display case includes an insulated enclosure having an access opening in the front and means for establishing an air curtain across the opening from an upper air outlet to a lower air inlet. A nozzle structure is removably disposed on the discharge opening to define the air stream layer. The nozzle is formed as a gridlike honeycomb section having a plurality of flat tube elements each of which are stacked against each other and bound together through a removable fastening device. This facilitates maintenance of the nozzle. The flat tube elements may also be formed having air passageways of progressively differing cross sectional areas to decrease turbulance between the air stream and adjacent ambient air.

Abstract: An unlimited accessed refrigerated island type display case is described. The case includes a base, a hollow pedestal extending upwardly from the middle of said base and a hood disposed over said base. A refrigeration coil is mounted in said hood, and a first circulating means recirculates cooled air through the coils, through an outlet in the hood, into an inlet in the base, and returns the flow of air to the refrigerator coils. A second inlet in the base then is provided and a second outlet in the hood which together with a second circulating means circulates air from outside upwardly through the pedestal into a plenum chamber surrounding the coils, and outwardly through the second outlet. First and second curtains of air then extend across the display case between the outlets and inlets. A third flow of recirculated cooled air is also directed substantially horizontally across the upper surface of the base to cool articles displayed thereon.

Abstract: A refrigerated showcase in which refrigerated air for refrigerating the interior of the showcase and preventing ambient air from invading in the showcase is circulated across a front opening of the showcase and through a bottom wall, a rear wall and a top wall of the showcase, is improved according to the present invention. The improvements reside in that a gas-permeable spacer is disposed at the end of shelves within the showcase and spaced from the front surface of the rear wall to form a refrigerated air introducing duct space between the spacer and the rear wall.

Abstract: A refrigerated food display case of the closed front type is provided with an improved means for inhibiting the formation of condensation on the front display window. To this end, the display case includes means dividing chilled air circulated within the case, into primary and secondary air curtains flowing across the display window. A heating means mounted only within the secondary air passage operates throughout each refrigeration cycle, to heat only the chilled air flowing within the secondary passage, thereby forming it into a secondary air curtain interposed between the window and the primary, fully chilled flow of air that has passed through the primary air passage and hence has not been exposed to the heating means. The warm air curtain, impinging upon the surface of the window, inhibits the formation of condensate thereon, such as commonly occurs due to the disparity of ambient temperature and the lower, interior case temperature.

Abstract: A refrigerated display case with multiple air curtains and a refrigerating system for refrigerating circulation air is disclosed. The refrigerating system includes a compressor, a condenser and two evaporators. One terminal port of both evaporators, positioned on the bottom portion of each evaporator, is alternately and selectively connected with the discharge side of the condenser or the suction port of the compressor through a four-way valve. The other terminal ports of both evaporators, positioned on the upper portion of each evaporator, are connected to each other through communicating lines. The communicating lines are connected to each other by a connecting line. A connecting line also connects a point between the two four-way valves to one of the communicating lines. The two communicating lines and the connecting lines are provided with at least one expansion valve and a plurality of electromagnetic valves and check valves.

Abstract: A low-temperature showcase comprises a heat insulated wall, on the top of which an opening for putting-into or taking-out commodities is formed. The inside of the heat insulated wall is divided into an air passage and a storage chamber thereover by a dividing plate which is installed inside this heat insulated wall in a nearly horizontal fashion. The air passage is formed in a manner that the cross-section thereof is of a U-shape, and the storage chamber is formed surrounded by this air passage. At both ends of the air passage, vent ports are formed at the positions facing each other through the opening of the heat insulated wall inbetween. The air passage is divided into two parts by a fan case corresponding to the respective vent ports and a blast fan which can rotate reversibly is supported by this fan case. In each halved air passage, an evaporator is installed in the vicinity of the vent port, and when one of the evaporators is put in cooling operation, the other evaporator is subjected to defrosting.

Abstract: A refrigerated display case with multiple air curtains and a refrigerating apparatus for refrigerating circulating air. The refrigerating apparatus includes a compressor, a condenser and two evaporators. The suction sides of both evaporators are connected with one another by a first passage line which includes first and second compression device with check valves in series, this line being connected to the compressor through valve devices. The discharge sides of both evaporators are also connected with one another by a second passage line which includes a pair of check valves, this second line being connected to the compressor through valve devices, respectively. The first and second passage lines are connected with one another and connected to the condenser through a valve device whereby both evaporators are parallel or serial connected with one another due to operation of the valve devices to accomplish the refrigerating mode or refrigerating and defrosting mode of the refrigerating means.

Abstract: A cabinet for cut-off flowers comprising at least one table to support flower boxes, a flower space bounded by cabinet walls and said table and means for cooling said cabinet.

Abstract: The invention relates to a refrigerated counter unit having a counter bed below a storage compartment, wherein a current of recirculated air is deliverd by a blower, following cooling by a heat sink and humidification, to the storage compartment, and from there back to the heat sink. The blower, the heat sink, and a humidifying unit are mounted in a housing outside the counter bed, preferably in a separate subassembly housing of the counter bed. To simplify the construction and improve efficiency, the invention provides that the cooled and humidified current of recirculated air is delivered by inlet air supply ducts to the longitudinal sections of the counter of the storage compartment air is supplied from the housing that receives the blower, the heat sink, and the humidifying unit by means of a plurality of air supply ducts that are separated from one another and extend throughout at least a fraction of the length of the counter bed.

Abstract: A low-temperature showcase in which a double air curtain can be formed for commodity inlet-outlet opening provided in one side of its main body comprising: a heat exchanger in an inner passage being positioned upstream of and at a predetermined distance from another heat exchanger in an outer passage with respect to the same direction of air flows, a partition wall defining the inner and outer passages and having a first window at a portion thereof between the two heat exchangers, a closure plate for opening or closing the first window to close or open the inner passage downstream of the first window, and first control unit for giving instructions to the closure plate for its operation, the first control unit being operative to instruct the closure plate to open the first window and close the inner passage downstream of the first window when the heat exchanger in the inner passage is operated for defrosting with the heat exchanger in the outer passage operated for refrigeration, whereby the air flow through t

Abstract: A refrigerated display cabinet with multiple air curtains has refrigerating apparatus for refrigerating circulating air. The refrigerating apparatus comprises a compressor, a condenser and two evaporators. The suction sides of both evaporators are connected with one another by a first passage line which includes first and second decompression devices with check valves in series, this line being communicated with the compressor through valve devices. The discharge sides of both evaporators are also connected with one another by a second passage line which includes a pair of check valves, this second line being connected to the compressor through valve devices, respectively. The first and second passage lines are connected with one another and connected to the condenser through a valve device whereby the flow path of the refrigerant can be selectively controlled by operation of the valve devices.