Abstract: An air circulation system mounted within a chamber is provided. The chamber receives a product to be tested or processed. The air circulation system comprises an enclosure defined within the chamber with at least one inlet formed in the enclosure for receiving air from the chamber. A pair of counter rotating fans are mounted within the enclosure adjacent the inlet for circulating the air. Additionally, at least one air diverter plate is mounted within the enclosure adjacent the fans for diverting the circulating air substantially across the width of the enclosure. Furthermore, at least one air outlet is formed in the enclosure for introducing circulating air into the chamber about the product being tested or processed.

Abstract: A portable heating and cooling unit intended to be used within a room or area of a building includes a cabinet supported on a plurality of wheels and a refrigeration circuit at least partially carried within said cabinet. The refrigeration circuit includes a first coil, a compressor, a second coil and a refrigerant reversing valve. In a cooling mode of operation, the first coil acts as an evaporator coil and room air is circulated by a first fan across the evaporator coil and delivered into the room. A second fan circulates room air through the second coil acting as a condenser coil and discharges the thus warmed air away from the room area to be cooled. In a heating mode of operation, the refrigerant reversing valve is activated to change the flow direction of the refrigerant through the circuit such that the first coil now acts as a condenser and The second coil now acts as the evaporator.

Abstract: The thermally regulated storage container of the present invention comprises a cabinet housing with an one open face. A self-sealing and self aligning cover provides an environmental seal between an insulated storage area within the cabinet housing and an external environment. A modular environmental control unit is removably installed within the cabinet. This unit can control temperature, pressure, humidity or any other environmental condition. A ducting system within the cabinet mates with the environmental control unit. An environmental monitoring system monitors internal conditions of the storage container and provides an input to a control system operable to direct the modular environmental control. This ensures that the desired internal conditions are maintained.

Abstract: Disclosed herewith is a wall mounted air conditioner. The air conditioner comprises an air conditioner body installed in an installation space of a building and provided with an exhaust hole on its top. A frame is situated in the installation space for guiding the installation and removal of the air conditioner body. A connecting duct is fitted into the air conditioner body and the frame to connect the exhaust hole of the air conditioner body to a duct mounted in the building when the air conditioner body is moved into the installation space. The wall mounted air conditioner can be easily moved into an installation space for installation and easily removed from the installation space for repair or replacement.

Abstract: A modular air handling supply system and method for producing a supply of cooled air for cooling purposes is disclosed. The modular air handling supply system includes a module container and ducting for transporting the air within said module container and a blower in operational connection with the ducting, wherein the cooled air is propelled to at least one resource or facility, each of which are located external to the module container. The system has the capability of supplying a remote resource or facility with a variable volume and temperature of cooled air.

Abstract: A vending machine having a self-contained self-aligning refrigeration unit, a temperature sensing probe positioned in front of the machine behind a glass panel for sensing the temperatures in the machine near the product to be vended and having a monetary unit which slides in and out of the cabinet and rotates for easy access.

Abstract: A portable heating and cooling unit intended to be used within a room or area of a building includes a cabinet supported on a plurality of wheels and a refrigeration circuit at least partially carried within said cabinet. The refrigeration circuit includes a first coil, a compressor, a second coil and a refrigerant reversing valve. In a cooling mode of operation, the first coil acts as an evaporator coil and room air is circulated by a first fan across the evaporator coil and delivered into the room. A second fan circulates room air through the second coil acting as a condenser coil and discharges the thus warmed air away from the room area to be cooled. In a heating mode of operation, the refrigerant reversing valve is activated to change the flow direction of the refrigerant through the circuit such that the first coil now acts as a condenser and the second coil now acts as the evaporator.

Abstract: A refrigeration machine for merchandising and displaying frozen articles. The refrigeration machine has a cabinet having a front wall, opposing side walls and an intermediate support shelf. A top portion of the front wall and the side walls extend above the intermediate support shelf to define a refrigeration unit compartment. The top portion of the front wall has a thicken area and a forward portion of the side walls also have thickened areas that are continuous with the thickened area of the front wall. The thickened areas form a boss which engages a divider wall of a refrigeration unit. The refrigeration unit is removable from the cabinet as a single member. The refrigeration unit has mounts for a compressor and a condenser so that an electrical tray and a condensate tray can be placed under the compressor and condenser. The cabinet has shelf supports that support shelves at varying degrees of inclination.

Abstract: A refrigerator includes a support panel extending sideways from a bottom of a storage heat insulating box at one side of the box. An evaporator heat insulating box is provided for accommodating an evaporator and is formed at the one side of the storage heat insulating box with an equipment accommodating space being formed between itself and the base panel. A back panel extends from the rear wall of the storage heat insulating box so as to form rear walls of the evaporator heat insulating box and the equipment accommodating space, respectively. A side panel is continuous to the back panel so as to define an air circulation space together with a side of the evaporator heat insulating box. A front panel is continuous to the side panel so as to provide a front of the evaporator heat insulating box and the equipment accommodating space.

Abstract: In order to cool a room, a cooling element fitted in the ceiling region is cooled to below the freezing point, preferably to about -40.degree. C., during the cooling phases so that condensate forming thereon freezes immediately. During regeneration phases when the room is not in use, the cooling element is defrosted and the melted condensate is caught in a condensate tray beneath the cooling element and drained via a discharge. The great temperature difference between the room to be cooled and the cooling element also makes it possible to obtain a strong cooling effect with a small cooling element, especially by indirect radiation exchange between the room and the cooling element via an intermediate ceiling. In addition, the air in the room is dehumidified since water vapour is deposited on and bonded to the cooling element in the form of ice.

Abstract: The invention concerns a heating/air conditioning installation for the passenger compartment of a vehicle.It comprises treatment means produced in the form of at least one removable box suitable for being installed underneath the floor of the vehicle and containing an air inlet, an optional evaporator, a heating radiator and at least one air outlet suitable for being connected to distribution vents distributed within the passenger compartment.

Abstract: The present invention relates to a water dispenser having a water supplying means provided in the outer of the door of the refrigerator for refilling the water tank when it is empty.

Abstract: A refrigeration system includes a base having an inlet opening, an outlet opening, an evaporator pan, a condenser pan, and a compressor mounting surface all integrally formed therein. All of the components of the refrigeration system mount onto the base to from a unitary structure. An evaporator is mounted to the base above said evaporator pan. A condenser is mounted to said base above said condenser pan. A compressor mounted to the compressor mounting surface and operatively connected to said evaporator and said condenser. A cover encloses the inlet opening, outlet opening and evaporator. The cover and base include an integral locking mechanism to secure the cover to the base.

Abstract: Methods and apparatus are directed to positioning proximate cooling units in novel ways in refrigerated food service and display units. Preferred embodiments include one or more of the following: (1) positioning the top of a side-pan cooling element above the top of an adjacent food pan; (2) positioning at least a portion of a side-pan cooling element above a portion of the opening of a food pan; (3) positioning multiple side-pan cooling elements between adjacent food pans; (4) movably positioning a side-pan cooling element relative to an adjacent food pan; (5) positioning a plate type side-pan cooling element as a non-linear divider among adjacent food pans, and (6) providing a pan cooler with a low capacity fan which allows cooled air to be recirculated about the food pans substantially independently of air circulation within any storage area of the refrigeration unit. In most preferred embodiments, the pan cooler has a finless sub-pan cooling element.

Abstract: A portable, wheel-mounted, mechanically-refrigerated chiller for water used to cool a heat generating manufacturing process machine, has a process cooling water flow sensor assembly with conventional connections into the process water circulation portion of the chiller. The assembly includes a magnetically impregnated plastic vane operated by water flow through it, and a Hall-effect motion sensor responsive to vane operation to provide a signal to a computer. Water temperature to the process and from the process is monitored by sensors producing signals to the computer. The computer combines this information to produce a front panel digital read-out of the percent of capacity at which the chiller is operating or, upon selection, the refrigeration tonnage applied by the chiller to the process water.

Abstract: A modular refrigeration unit comprising a condenser assembly and an evaporator assembly is bottom-mounted inside a merchandising display cooler such that cool air emerging from the evaporator assembly rises in a plenum defined between an insulated back wall of the cooler and an interior back panel. The cold air passage is centrally disposed between return warm air passages for returning air from the inside of the cabinet into the evaporator assembly. Air inlet and outlet openings are provided at selected locations on the interior back panel. The evaporator assembly is disposed above an evaporator pan which is integrally formed with a well for collecting condensed water vapor and discharging the collected moisture on the other side of a bulkhead insulating the evaporator assembly from a condenser assembly exposed to the ambient atmosphere.

Abstract: The present invention provides a low smoke screen handler for smoke generators comprising a housing provided therein with a compressor, condensing coils, evaporating coils, and capillaries.

Abstract: A refrigerated icebox employs a cabinet that is internally corrugated to provide a multiplicity of lengthwise channels for air flow within the enclosure defined. The cabinet has a top wall that is provided with an opening to accommodate a drop-in refrigeration unit, and it is, in the main, integrally formed as a single piece.

Abstract: A portable produce cooling apparatus capable of cooling produce loaded into a number of transport vehicles simultaneously is disclosed, the apparatus having a number of ports with air egress means, forced air means and air ingress means, the apparatus having a lower common warm air chamber and an upper common cold air chamber separated by a horizontally mounted air-to-water heat exchanger means, such that warm air from each of the transport vehicles enters the lower common warm air chamber, passes upward through the heat exchanger means, into the upper common cold air means, and out the individual air egress means into the transport vehicles.

Abstract: A modular refrigeration apparatus containing a cabinet with a front opening and divided into lower and upper portions, for separately receiving a plurality of removable modular units, said removable modular units including one of a selected plurality of interchangeable storage units and a universal refrigeration unit. A selected one of the plurality of interchangeable storage units is positioned within the upper portion of the cabinet for storing a plurality of containers. The refrigeration unit is positioned within the lower portion of the cabinet and in communication with the upper portion for cooling the entire interior of the cabinet. The cabinet is designed so that the interchangeable storage units and refrigeration unit can be respectfully removed or inserted from the cabinet without affecting the other units.

Abstract: A modular refrigeration apparatus containing a cabinet with a front opening and divided into lower and upper portions, for separately receiving a plurality of removable modular units, said removable modular units including one of a selected plurality of interchangeable storage units and a universal refrigeration unit. A selected one of the plurality of interchangeable storage units is positioned within the upper portion of the cabinet for storing a plurality of containers. The refrigeration unit is positioned within the lower portion of the cabinet and in communication with the upper portion for cooling the entire interior of the cabinet. The cabinet is designed so that the interchangeable storage units and refrigeration unit can be respectfully removed or inserted from the cabinet without affecting the other units.

Abstract: A modular refrigeration system for use in a cabinet with a front opening for receiving the unit and divided into a lower section and a refrigerated upper section. The refrigeration unit is positioned such that the lower section of the cabinet holds a condenser that is in communication with an evaporator positioned in the upper section for cooling the interior of the cabinet. The condenser includes a condenser fan that draws air from outside the cabinet and across a plurality of cooling coils of the condenser for cooling the refrigerant. Warm air currents are directed by the condenser fan into an exhaust channel that creates an independent flow of air across the condenser's compressor due to an aspiration effect within the exhaust channel. Additionally, the refrigeration unit may be easily removed from or inserted into the cabinet without affecting other modular units in the cabinet.

Abstract: A cabinet for a reach-in cooler includes at least one door and a window located within the at least one door. The window is sized to be no larger than one third the surface area of the door.

Abstract: A cabinet refrigeration system suitable for use in a wide variety of refrigeration cabinets is disclosed. The system includes a cabinet for storing or displaying refrigerated food and a thin, self-contained refrigeration unit of unitary construction removably mounted on the inner surface of one of the walls of the cabinet thereon by making it easily replaced, repaired or moved to a different cabinet. The cabinet may have drawers, shelves, bins or other food storage or display receptacles that may be accessed either through the front or the top of the cabinet. The refrigeration unit operates by drawings warm air into the bottom of the unit and expelling cold conditioned air out of the top of the unit. Adjustable deflectors are mounted on the outside of the refrigerator unit at the unit's output vent for precisely controlling the direction of flow of the cold air exiting the refrigeration unit.

Abstract: A method used in low temperature storage of biological specimens comprises the steps of (a) maintaining a multiplicity of biological specimens within a predetermined low temperature range in a cryogenic storage unit, (b) selecting at least one biological specimen for removal from the storage unit, (c) determining a respective thaw period and thaw rate for the selected specimen, (d) automatically retrieving the selected specimen from the storage unit at removal time in accordance with the respective determined thaw period, and (e) automatically thawing the selected specimen at the respective thaw rate. An associated thawing system comprises a storage unit for maintaining a plurality of biological specimens within a predetermined low temperature range, a plurality of thawing chambers, and a heat exchange assembly for implementing a temperature change in each of the chambers independently of temperature changes in the other chambers.

Abstract: An industrial liquid circulating and cooling machine for hydraulic fluids, lubricants, cutting oil, chemicals and the like has a chassis, an electro-mechanical refrigeration system with a compressor and condenser and evaporator, a I/O communication bulkhead for liquid and electrical flow, a single air filter, removable side panels held on by novel structure and locked by manual latches, a cover panel hinged and locked to the side panel by manual latches, and a heat exchanger having a novel non-pressurized liquid tank with a baffled tube and fin evaporator immersed in the liquid in the tank.

Abstract: An air conditioner having improved internal structure and intended specifically for cooling electronic enclosures has a cabinet containing a compresser, evaporator and condenser coils, a load air blower, an ambient air blower, and a single motor connected to both blowers. The interior of the cabinet is divided by upper and lower horizontal dividers into upper, central and lower compartments. The upper compartment is divided into a separate ambient air intake compartment and a separate load air intake compartment with both blowers and the motor being in the load intake compartment. The evaporator coil and the ambient intake compartment and associated structure are asymetrical as is the compresser installation. The load air inlet and outlet are on the back, the ambient inlet is on a side and the ambient outlet is on the bottom. This new air conditioner is of exceptionally small physical size for its cooling capacity and is relatively quiet and easy to manufacture.

Abstract: A carbonator refrigeration system for use in a conventional refrigerator for dispensing a chilled carbonated liquid such as water or a beverage from the front door of the refrigerator. The system includes a compressor, an evaporator, a condenser, a carbonator and a valve member wherein the valve member is responsive to conditions detected within the refrigerator for selectively directing a source of cooling fluid to or away from a heat exchange device provided in connection with the carbonator. The carbonator refrigeration system enables cooling of the carbonator for home dispensing use in a time-share manner with the remaining mechanical refrigeration components.

Abstract: A cryogenic storage apparatus comprises a housing with an automatically operated access door. A holder device disposed in the housing supports a plurality of specimen-containing ampules, while a conveyor moves the holder device, together with the plurality of ampules, through cooling fluid in the housing along a path preferably including a snaking portion with vertically extending folds. An inverted L-shaped cooling component with an opened upper side is disposed in the housing for maintaining the cooling fluid at a predetermined low temperature. An extraction mechanism disposed outside of the housing at the access door serves to remove a selectable ampule positioned in the housing in juxtaposition to the door.

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 refrigeration showcase comprising a display case, a machine case and an air duct connecting the display case to the machine case, the display case comprising a display table for displaying commodities as placed thereon, a cover member openably covering the display table from above to define a commodity chamber above the display table and permitting the commodity chamber to be seen therethrough from outside, and an air passage member disposed under the display table and providing a cold air supply portion for supplying cold air therethrough to the commodity chamber and a cold air discharge portion independent of the supply portion for discharging cold air from the commodity chamber therethrough, the machine case comprising a case body, a refrigerator housed in the case body and providing a refrigeration cycle and a cold air circulating blower for supplying air cooled by the evaporator in circulation, the air duct having a forward air channel for transporting the cold air, and a return air channel independent

Abstract: A leveling device is disclosed herein for automatically maintaining an absorption refrigerator and freezing unit in a level orientation which includes a ball and socket joint for pivotally mounting the unit to a fixed wall for movement about a horizontal axis. Ducts passing through the ball and socket joint interconnect freezer unit with absorption unit. A solenoid operated leveling device automatically positions the unit to a level position in response to solenoid push rods. A mercury liquid cell carried on the refrigerator unit having quadrant segments operably connects with the solenoids for selectively actuating the push rods when the liquid level changes. The ball and socket joint permits the freezer and absorption unit to automatically level itself by the gravitational pull of the earth assisted by a solenoid operated leveling device that helps position the freezer and absorption unit to a level position.

Abstract: An air-conditioning refrigerator comprising an air-conditioning unit structured within the confines of a refrigerator, with the cooling coil and blower of the air conditioner located within a housing attached to the inside of the freezer compartment door, with air flow through apertures in that door; the motor-compressor unit located beneath the refrigeration compartment; and a water-cooled condensor unit located on the back surface of the refrigerator. Freon lines and condensate discharge tubing may enter and leave the housing through apertures formed at rotational axes of freezer and refrigerator door hinges.

Abstract: An improved self-defrosting refrigerator and power module therefore, inlcuding a food storage compartment and a refrigeration compartment adjacent and insulatable from the food storage compartment. A refrigeration system of novel design is mounted within the refrigeration power module which includes a compessor, a condensor coil, and evaporator coil, a defroster heater, circulation means for circulating frigid air through the passageways to cool the storage compartment during the refrigeration cycle and means for collecting and exhausting melted frost from the refrigeration power module, which is configured and adapted to prevent the passage of warm air into the module. A method for constructing the novel refrigeration apparatus and improving its cooling efficiency is also disclosed.

Abstract: A heater/cooler unit specially adapted for motels, hotels, hospitals and like structures enables adjacent rooms to be cooled or heated by using certain commonly shared components. An evaporator is disposed in each of two adjacent rooms. The evaporators are connected to a common compressor and condenser disposed outside the rooms. Appropriate control mechanisms are provided to enable the evaporators to operate independently. The components are disposed in a housing which forms a portion of the exterior wall of the structure and a portion of the common wall of the rooms. Certain of the components can be placed atop a cart which can be wheeled into and out of the housing so as to facilitate installation and servicing of the unit. Electrical strip heaters can be added to the evaporators to provide a heating capability. An alternative embodiment employs interior and exterior heat exchangers operated as heat pumps.

Abstract: An insulating apparatus for individually managing the temperatures of small containers to be delivered or stocked has containers and cooling units. The cooling unit has a rack for placing the container and cooling elements inserted into the containers. The cooling elements are operated by pressing selectively operable pressors of the container side by a remote switch of the cooling unit side. The cooling elements are independent at the respective containers to individually control the temperatures of the containers.

Abstract: An outdoor unit of an air conditioner includes a box-shaped casing. The interior of the casing is divided into an upper chamber and a lower chamber by a first partition wall which is arranged in parallel with the top and bottom walls of the casing. The lower chamber is divided into a heat exchanger chamber and a machine chamber by a second partition wall extending perpendicular to the bottom wall. A heat exchanger and a compressor are arranged in the heat exchanger chamber and machine chamber, respectively. Electric parts are arranged in the upper chamber and located above the heat exchanger chamber. A support rod is located in the heat exchanger chamber and fixed at one end to the first partition wall and at the other end to the bottom wall. A blower is attached to the support rod and faces the heat exchanger.

Abstract: An outdoor unit for an air conditioning apparatus of a through-the-wall multitype which is installed within an installation opening formed through the wall of a room so as to conduct heat exchange of outdoor coils outside the room whereby connection of piping between the outdoor unit and indoor units is easily performed inside the room.

Abstract: In a cold cabinet comprising a refrigerated chest, a base supporting the chest, a refrigeration unit is mounted on a frame pivoted on the base and connected to the chest.Such a cold cabinet is accessible from both sides to facilitate maintenance thereof.

Abstract: According to the invention, a compressible, resilient baffle member is provided and held captive compressibly against a partition wall in a refrigeration apparatus machinery compartment by a resilient retainer clip. The retainer clip straddles the baffle member surface and has legs which terminate in offset free ends which extend into a specially configured aperture in the partition wall. The baffle member biases the offset ends of the clip legs into contact with the surface of the wall opposite to the baffle mounting surface. When the baffle is rotatably displaced the one clip leg slides into the aperture and the opposite leg rotates about an edge of the aperture. The resilience of the baffle member and clip restore the baffle to the original position.

Abstract: A modular air conditioner package for circulating conditioned air within a transportable cargo container. The package includes a standard fan deck and evaporator unit that can be selectively mated inside the container along either the front or the top wall in a blow through or draw through configuration. The fan deck is mounted at the top front corner of the container and can be joined to the evaporator unit to provide four separate options for directing conditioned air downwardly along the front wall or rearwardly along the top wall of the container depending on the type of load being transported.

Abstract: A cryostat microtome apparatus comprises a cooling enclosure which can be set to a predetermined internal temperature and a microtome disposed in the enclosure. The enclosure is supported on a support assembly which is vertically adjustable to permit stepless adjustment of the height of the enclosure, for adaptation to operator requirements. A mechanical actuating assembly and/or a gas spring assembly is provided for height adjustment of the apparatus.

Abstract: A refrigerator including two compartments, one of which is maintained at a temperature above freezing and the other of which is maintained at a below freezing temperature. The refrigerator cabinet is divided into the two compartments by a divider that is slidably received in support grooves in the side walls of the cabinet. A self-contained pre-assembled air circulating and cooling module is arranged on the rear wall of the cabinet and the divider installed so that air circulated through the pre-assembled module is proportionally divided between the compartments in amounts sufficient to maintain the compartments at the preselected temperature.

Abstract: An insulated cabinet for keeping and displaying perishable articles at reduced temperatures. The refrigerated cabinet provides recirculation of chilled air about a closed path by convection, and provides a simplified technique for adjusting the temperature within the cabinet. Also disclosed is a freezing-cabinet modification. The cabinet may have separate goods-receiving spaces maintained at different temperatures. Relatively inexpensive manufacturing and operating costs are a criterion of the cabinet.

Abstract: A high-side portion of a refrigeration system is supported on a condensate collecting tray formed in a single piece of molded plastic which includes in combination a condensate water overflow containment area and a drop-in rotary compressor mounting arrangement wherein the compressor is resiliently supported in the overflow containment area with its axis in a vertical position in a manner which provides torsional and vertical vibration isolation, the containment area being dimensioned so that only an overflow of condensate water will come in contact with the compressor.

Abstract: This invention relates to a refrigerator and more particularly to providing a unitary high-side refrigeration system component unit which can be adapted for mounting in machinery compartments of different designs. Essentially, the unitary high-side refrigeration component unit is designed so that selected high-side components forming refrigeration systems of varying capacities may be assembled as a part of the unit or interchanged to be accommodated in machine compartments of different designs.

Abstract: A unitary high-side refrigeration system assembly adapted to be installed in the machinery compartment of a domestic refrigerator including a condensate collection support member on which the refrigeration system high-side components including the compressor, condenser and air moving means are mounted.

Abstract: An indoor unit for an electric heat pump is provided in modular form including a refrigeration module 10, an air mover module 12, and a resistance heat package module 14, the refrigeration module including all of the indoor refrigerant circuit components including the compressor 36 in a space adjacent the heat exchanger 28, the modules being adapted to be connected to air flow communication in several different ways as shown in FIGS. 4-7 to accommodate placement of the unit in various orientations.

Abstract: A container refrigeration unit is provided with a forwardly open condenser pocket 40 in which is located a condenser coil 50 near the upper portion of the pocket and in a generally centered location, the coil being mounted in an inverted disposition and provided with a bottom plate 52 and a front plate 54 with a fan ring opening 56 so that air is drawn into the condenser coil from the top and sides, the remaining U-shaped space in the pocket to the sides and bottom of the condenser being available to accommodate the electric motor compressor 60, the control box 62, an operations recorder 64, and if required a power transformer 66.

Abstract: A unitary refrigeration system for a vertical refrigeration cooler which may be installed and removed as a unit from a front of the cooler without a need to unload the articles in the cooler or move the cabinet. Another important feature of the present invention is to provide a unitary refrigeration system for a vertical cooler in which the compressor and evaporator may be removed as a unit without disconnection of the refrigerant tubing in a convenient and expedient manner from a front of the cabinet. Still another important feature of the present invention is to provide a unitary refrigeration system which may be easily removed from a vertical cooler as a unit for servicing and replaced by a like unit so that the cooler is not rendered inoperable during servicing.