Abstract: An apparatus for warming towels, or other articles. The apparatus includes a cabinet having an internal vertical wall that divides the cabinet into a warming chamber and a second chamber. A tubular rack extends generally horizontally across the warming chamber and is adapted to support a towel, or other article to be warmed. An open inlet end of the rack extends through the interior wall. An integral air supply unit is located within the second chamber and includes a motor driven fan or blower and a pair of discharge channels are connected to the discharge side of the fan. The upper end of one channel registers with the inlet of the rack, while the open upper end of the other channel communicates with the upper end of the warming chamber. The air discharge unit is removably connected within the second chamber in a manner to cause registry of the upper end of the first channel with the inlet of the rack.

Abstract: A heater for a grain bin is attached to the inlet flange of a centrifugal inline blower and comprises a housing having a vertical front wall attached to the inlet flange of the blower and a parallel vertical rear wall. The front wall has an opening aligned with the opening into the blower. The rear wall has an opening aligned with the opening in the front wall so that the majority of the air entering the blower passes straight through the housing from the rear wall to the front wall. A sleeve surrounds the opening in the rear wall and induces some flow from the housing to mix with the flow into the blower. The combustion chamber is attached to the rear wall through an opening in the rear wall above the sleeve. The housing has two side walls converging to an open top through which air can escape. When heated air is required an air flow is induced from the combustion chamber to mix with the air flow through the housing to heat the total air flow.

Abstract: An electrothermal drying rack including a main support, a retaining cover pivotally connected with the main support and a heating tube disposed in the retaining cover. Ventilating devices such as fans are disposed on the main support. The retaining cover serves to firmly secure and protect the heating tube and mount the drying rack on a wall face. The retaining cover defines a half-closed air passage and the fans forcedly guide and speed the air flow through the air passage so as to enhance the drying effect.

Abstract: This invention relates to a device which has been specifically conceived to dry feet thoroughly by means of hot air; it comprises an upper and a lower chamber. The lower chamber acts as a support for the upper chamber, and should be rectangular in shape and hermetically sealed. This lower chamber houses the ventilating mechanism which has an air intake for the fan which is driven by an electric motor fed by a cable; the fan generates the draft necessary for the drier to work. The drier is also fitted with a tubular resistor which heats up when electric current is applied and so warms the air in the lower chamber to a preferred temperature controlled by means of a regulator and a timer to pre-set the operating time The upper chamber is half enclosed with a convex cover and is positioned and supported on the walls of the lower chamber. Its function is to close in the air and direct it all around the top and sides of feet in a whirling fashion, so drying the upper part of the feet and the toe webs.

Abstract: Described are a device and methods for drying hosiery and other articles of clothing in a way which is aesthetically pleasing and efficient. In one embodiment, the invention provides an enclosure comprising a bottom portion; suspending means disposed above the bottom portion for hanging the hosiery and/or other articles of clothing within the enclosure; absorption means which, during normal use, is disposed above the bottom portion and below the hosiery and/or other articles of clothing when hung within the enclosure, for absorbing liquid which may drop from the hosiery and/or other articles of clothing when wet; and attachment means for attaching the enclosure to a substantially vertical surface; whereby the hosiery and/or other articles of clothing may be stored to dry while remaining substantially concealed within the enclosure.

Abstract: Apparatus for drying articles, particularly people, comprises a cubicle defining a drying space and one or more air impellers arranged to produce an air flow within the drying space having a swirling or vortex motion. Preferably the air is recirculated, and the recirculated air is treated, for example, heated, dried and cleaned.

Abstract: A coffee bean roaster for home use in which a fan heater assembly in a housing blows hot air upwardly through a glass roasting chamber. The hot air escaping from the top of the chamber may be selectively recycled into the housing to raise the roasting temperature to compensate for low levels in available electrical power.

Abstract: An oven structure that includes a housing with an internal refractory surface and two heat diffusion walls with apertures at spaced apart and parallel relationship with respect to each other defining a centrally disposed baking chamber and two combustion chambers. The apertures allow a predetermined amount of heat to pass through to the baking chamber without affecting the object being baked by direct contact with flames or other areas with excessive heat concentration. A uniform temperature is maintained within the baking chamber with the hot gases passing through the apertures to the baking chamber where high pressure is developed but the top with the hottest gases and push the mass of gases with a lower temperature down and into the exhaust system.

Abstract: An enclosed type air circulation drying mechanism includes a housing for receiving the food. The housing has two side chambers each for receiving a blower and two heating members and an evaporator for drying the air. Two or more fans are disposed in the side chambers and arranged in an antisymmetric condition for generating an eddy current and for removing the humidity from the food. The refrigerant is received in a low pressure container and pumped to a condenser by a compressor. An evaporator may remove the humidity from the air.

Abstract: The present invention is an externally mounted clothes dryer filter which attaches to a standard clothes dryer hose. The externally mounted clothes dryer filter is fastened to an external wall of a structure. The clothes dryer exhaust hose is attached to an input. A screen device in the filter captures lint and other particulate matter. The filter can be removed for cleaning.

Abstract: A grain bin structure for storing, conditioning, and drying grain having a floor, side walls, and a roof. The side walls are formed with a plurality of horizontal and vertical corrugations formed integrally therein and within a common circumferential plane. The vertical corrugations function as stiffeners and as vertical air conduits to dispense pressurized air about the periphery of the bin. Optionally, conduit tubes may be located within the vertically disposed corrugations to further channel air flow. These conduits are formed with an inner wall substantially flush with the interior of the horizontal corrugation, thereby maintaining a low silhouette while maximizing a cross-sectional area within each conduit to avoid undue restriction of air flow.

Abstract: In order to uniformly dry a large number of electronic components such as multilayer capacitors with high thermal efficiency in a short time, a vat, whose bottom wall is formed by a net, receives a plurality of electronic components. In a closed housing, hot air which is heated by a heater is forced to pass through the plurality of electronic components and the bottom wall of the vat by attraction by an air attracter.

Abstract: A device for drying and cleaning footwear comprising a shallow housing on which the user steps to activate heater blowers which provide hot air which is directed upward against the footwear of the user. At the same time the user moves his feet against brushes. The debris and water falls though the device to be collected in shallow drawers at the bottom of the device.

Abstract: A coffee bean roaster is provided with a cylindrically shaped transparent viewing tower in which coffee beans are roasted by an upwardly directed hot gaseous stream while being fluidized into a visually pleasing ascending central and descending outside columns during the roasting cycle. A two way valve located at the bottom of the tower permits the gaseous stream to enter the tower when the valve is in a first position and the roasted beans to be diverted to a cooling chamber when the valve is in a second position.

Abstract: The present invention relates to an apparatus for roasting raw coffee beans which apparatus can instantly roast a small quantity of raw coffee beans according to personal taste and provide a unique taste and fragrance of coffee, and in particular to an apparatus suitable for home use. The apparatus has a roasting vessel for containing raw coffee beans to be roasted. A plurality of air openings are provided for creating a whirling vertical motion to a heated airstream ascending therethrough, whereby the raw beans are roasted and also caused to have their hulls separated and caused to ascend upwardly with the airstream to a hull-receiving vessel.

Abstract: An apparatus supplies steam into a silo via holes provided in the bottom (3) of the silo and via channels (8) provided below the silo. The steam supply channel (8) is provided with a feed connection through which the steam to be fed into the silo is passed into the steam supply channel (8). Furthermore, the channel (8) is provided with steam feed nozzles (17) placed under the holes in the bottom (3) of the silo. The nozzle (17) is preferably provided with a mounting flange (21) which is fastened to the lower part of the channel (8), making it easy to remove the nozzle (17).

Abstract: The present invention provides a lightweight, portable drying apparatus which naturally, uniformly and quickly drys footwear and small items of apparel such as shoes, hats, gloves and scarves. The portable drying apparatus includes a flexible waterproof bag having an inner support structure for holding multiple pieces of footwear and small articles of apparel. The flexible bag may be rigidly supported by a top panel and a collapsible waterproof tri-fold support insert which defines the boundaries of an enclosed inner chamber. During operation, ambient air is circulated throughout the chamber using a blower assembly mounted on the support structure for drawing air into the chamber, and a vent formed in the flexible bag material for releasing the drawn air from the chamber. In a second embodiment, the support structure includes a base panel for defining a bottom portion of the chamber and two or more removable flexible rods bent in an arch shape to form a dome shaped structure.

Abstract: The invention is directed to a manifold 10 that is used in conjunction with a die attach cure station for providing a "quick cure" of the die mount adhesive, and for forcing contaminants away from the semiconductor die 33 surface. The manifold has an air put port 21 directly above the semiconductor die. Forced air is directed through the port. At each side of the forced port are vacuum ports 20,22 through which a vacuum is applied to draw air and heated die attach contaminants from the die surface. Air is also drawn from below and around the die mounting area to provide a stream of air that is drawn into the vacuum ports.

Abstract: Plate-like workpieces such as thin ceramic plates which are ultrasonically cleaned are housed in a tray having an air-permeable bottom plate and a plurality of air-impermeable sidewall plates extending from peripheral edges of the bottom plate. To dry the cleaned workpieces, the tray is placed in a drying tank and supported on a support base on the bottom of the drying tank at an inclined attitude. The drying tank is combined with a hot-air duct which is detachably coupled to respective edges of the sidewall plates of the tray when the tray is supported on the support base. The hot-air duct supplies hot air into an interior space of the tray which is surrounded by the sidewall plates. A suction duct is coupled to the bottom plate of the tray supported on the support base and draws hot air supplied from the hot-air duct from within the interior space through the bottom plate.

Abstract: This disclosure relates to a small-capacity coffee roaster in which, even when roasting small quantities of raw coffee beans using direct-contact heat, the temperature can easily be controlled within the range vital for the roasting of coffee beans, and proper roasting can be accomplished in a short time. The roaster 10 comprises a stirring blade 12 provided at the bottom inside a roasting container 11, a ring-shaped sheathed heater 13 provided at the upper part of the container, an exhaust opening 7 having a smoke-removal filter 14 provided in the top wall of the container, and a temperature sensor 17 for detecting the temperature of the container provided on the underside of the bottom wall of the container. In addition, the container is made of good heat-conducting aluminum.

Abstract: A body drying system is disclosed for drying the entire body of a user, or alternatively, the towel or robe of a user. The body drying system of this invention includes a rectangular housing with apertures formed within its forward face. The apertures are designed to allow for the passage of warmed air. The housing is specifically dimensioned to fit between a towel rack and the wall onto which the rack is mounted. Thus, the operator may stand in front of the apertures of the housing in order to dry himself or herself. Alternatively, the operator may hang a towel or robe on the rack in front of the apertures. Controls are provided for selecting the degree of heating, the starting time, and the stopping time of the drying system.

Abstract: A dishwasher includes a washing chamber where a heater is located. The air within the chamber is circulated by a first fan through a circulation duct. An inlet and an outlet for the outside air is located on the front surface of the dishwasher. The inlet and the outlet are connected by the outside air duct. A heat exchanger is located between the outside air duct and the circulation duct. The outside air is circulated by a second fan from the inlet to the outlet to exchange the heat between the outside air and the inside air.

Abstract: A system for drying a large quantity of wood efficiently, which includes: a wood drying room capable of being sealed; a combustion-gas generator provided with an air-inlet conduit for introducing fresh air for combustion use into a combustion chamber provided in a lower area of the combustion-gas generator; a combustion-gas supplying passage extending from an upper area of the combustion-gas generator to an upper area of the wood drying room; an exhaust-gas discharging conduit extending from a bottom area of the wood drying room to a chimney; a combustion-gas recovery conduit extending from the bottom area of the wood drying room to the combustion-gas generator; and a gas flow-rate control unit provided in at least one of the exhaust-gas discharging conduit and the combustion-gas recovery conduit.

Abstract: An improved coffee roaster (10) for roasting a selected volume of coffee beans in a relatively quick and efficient manner. A roasting cavity (66) is provided for receiving and roasting a selected volume of green coffee beans. A timer (158) is provided for controlling the roasting time. A heating coil (32) is provided for generating heat to roast the coffee beans. A motor (24) drives a fan (30), which forces air through the heating coil (32) and toward the roasting cavity (66). Slots (76) defined by the roasting cavity (66) direct the heated air into the roasting cavity (66) such that the coffee beans are agitated and roasted. Chaff is evacuated with the air through the opening (74) in the top of the roasting cavity (66). A chaff collector (20) is provided for collecting the chaff evacuated while allowing the escape of air.

Abstract: An oven door that provides forced circulation of the heated air within the interior of an oven chamber is presented. The oven door includes an outside door wall, an inside door wall, and a plurality of interior walls disposed between the outside door wall and the inside door wall that form an air-directing plenum carried within the oven door. The inside door wall has a plurality of openings providing air circulation between the air-directing plenum and the interior of the oven chamber. A motorized fan assembly, located within the oven door, forcibly circulates air through the plurality of openings in the inside door wall, the air-directing plenum and throughout the interior of the oven chamber.

Abstract: Apparatus and method is set forth for treating a flat substrate (10), more particularly a semiconductor wafer in the manufacture of integrated circuits, under reduced pressure comprising a vacuum chamber (2a, 2b) provided with a substrate support (11) having a body (11a) with heating and/or cooling means (12) and a supporting surface (11b) at which a plurality of injection openings (20) is present communicating with an injection space (12) and a supplementary gas inlet (28), through which injection openings a gas is supplied between the substrate and the supporting surface for forming a heat-exchanging gas cushion therebetween.

Abstract: A funnel-shaped arrangement (1) for drying and/or cooling vehicles or parts thereof. The funnel-shaped arrangement (1) is longitudinally divided into a number of sections each of which is provided with a plurality, preferably 60-250, of nozzles (7,20,21,22,23,24,25) which are substantially evenly distributed over the curved inner surface of the section and through which the gases are supplied and blown against the vehicle or the parts thereof passing through the arrangement (1), the pressure drop of the gases is measured across the nozzles (7,20,21,22,23,24,25) and the temperature of the gases before the nozzles (7,20,21,22,23,24,25). The measured pressure drop values are then compared with predetermined desired values corresponding to the prevailing temperature, whereupon a pressure increase or a pressure reduction signal is supplied to a first pressure changing means (29) for suplying the gases to the arrangement (1), depending on whether the measured values are below or above the desired values.

Abstract: A free standing apparatus for warming popcorn is disclosed comprising a storage compartment having a plurality of shelves for holding food containers, a base portion housing means for providing heated air to the storage compartment and a conduit for returning the heated air from the storage compartment to the base portion for recirculation. The shelves are formed with a plurality of apertures to allow the heated air to circulate through the storage compartment within a close proximity to the food portions. The heating means is a combination of heater, diffuser and blower to circulate the heated air throughout the unit.

Abstract: An assembly for efficiently supplying heated air to an enclosed area for drying the body of a person after bathing. The assembly has particular application for installation in an existing bathing area with a minimum of remodeling and with virtually all components being installed behind the walls and ceiling of the bathing area. The assembly includes blower means, duct means and heating means of special construction and location so as to more efficiently supply heated air to the bathing area.

Abstract: A method of ironing articles of clothing suspended on hangers includes the step of directing opposite hot air jets onto two large sides of a moving previously wetted article with the opposite hot air jets acting to impinge upon the treated article in a direction from top to bottom so as to maintain the article in a state of vertical tension during the treatment, and the hot air being directed symmetrically onto the two sides of the moving articles through a plurality of superimposed nozzles which are inclined downwardly about 45.degree. to a plane of movement of the article. An apparatus for implementing the method is also disclosed.

Abstract: A grain bin structure having an inverted frusto-conical interior drying floor dividing the bin structure into a drying chamber and a storage chamber, and a transfer means comprising a rotating helical conveying system for transporting grain from the drying chamber to the storage chamber, said rotating helical conveying system having inlet means in communication with the drying chamber and outlet means in communication with the storage chamber. Preferably, the bin structure further comprises control means for sensing the moisture content of the grain in the drying chamber and for signaling activation of the transfer means when the moisture content reaches a predetermined level. The grain bin structure may also include improved diverter means for insuring complete transfer of the grain from the drying chamber to the storage chamber and deflector means for promoting even piling of the grain within the storage chamber.

Abstract: A body dryer especially suitable as a portable body dryer is provided. A platform for supporting the feet of the user is formed with apertures therethrough and an upwardly extending surface portion at least in the region of the user's toes to spread same. An upwardly extending region along the central longitudinal axis may be provided to spread the feet of the user. A fan is provided below the platform to force air through the apertures.

Abstract: A portable heating device includes a cabinet, a source of heat, support for a towel so as to exposed the towel to the heat, and an opening at the top to the heat. The towel heating device of the invention may be used to warm or dry towels or other like cloth materials.

Abstract: An apparatus for drying articles having an adjustably movable drying head includes a housing having a drying chamber defined therein and a conveyor extending therethrough. The conveying means carries articles to be dried on the conveyor through the drying chamber next past adjacently positioned drying plenum devices. The plenum boxes are movably mounted with respect to the housing toward and away from the conveying means to facilitate drying of articles of different shapes and sizes. The drying plenums can be positioned to the sides of the conveyor or above or below or any combination of such positions. The drying plenums include air distribution controls such as air guides in the form of slots adapted to facilitate drying of articles by blowing of the water thereoff primarily and secondarily by evaporation. A conduit being flexible along at least a section thereof extends between the blower and the movably positioned drying heads.

Abstract: A grain drying system around the interior of a grain bin wall which dries grain adjacent the bin wall while minimizing air and heat loss above the level of grain stored in a bin is disclosed. The system is self-regulating and limits air flow to areas above the level of the grain in response to changes in grain level or air pressure in the system. In the grain drying system, vertical air passageways or tubes extend about the interior of the bin wall. The elongated passageways, which have air diffusing or outlet areas, are arranged in fluid communication with a plenum chamber below an air permeable grain supporting subfloor in the grain bin. Each of the passageways or tubes has a movable float slidable therein. When pressure in the plenum chamber reaches a pressure equal to or greater than a predetermined level at which the floats are calculated to operate, the floats then rise within the air passageways until equilibrium with grain created air resistance is reached.

Abstract: Heated and humidified air is withdrawn by a blower from the apex of a grain elevator or bin and passed through a heat exchanger to preheat fresh air drawn into the grain elevator or bin. A heater raises the temperature of the preheated fresh air and a further blower forces it into the grain elevator or bin to flow in and about the stored grain to draw moisture therefrom. An auger located at the apex of the grain elevator or bin to transport grain into the grain elevator or bin permits filling of the grain elevator or bin during flow of the drying air.

Abstract: In an apparatus for drying vehicles having a framework upon a floor surface adapted to receive a moving vehicle, a transverse lift rod is guidably mounted upon the framework for controlled vertical adjustments and mounts a transverse top nozzle housing having an inlet, an air chamber and laterally diverging sidewalls terminating in an elongated throated air outlet. A pair of opposed upright side nozzle housings are mounted upon opposite sides of the framework with each housing having an inlet, an elongated air chamber, and an elongated lateral nozzle inclined rearwardly at an acute angle toward the vehicle. A plurality of motor-operated air blowers are mounted upon the framework with each blower having an air outlet, with a plurality of flexible hoses interconnecting the outlet of each blower with one of the housing inlets.

Abstract: Method and apparatus for conditioning and preserving living seeds in a bin of the type having means for forcing air into a plenum chamber in the lower part of the bin, a floor pervious to gas flow forming the top of the chamber, and heating means. Electrical heating means such as heat lamps are utilized to introduce energy into the plenum air. A variation is disclosed wherein the heating means and plenum chamber are located in the upper part of the bin, and the air flow is from top to bottom.The process involves measuring the temperature of drying air in the plenum chamber, measuring the temperature of exhaust air leaving the bin, and inactivating the heating means when the difference between the two temperatures exceeds a predetermined level.

Abstract: A foot drying assembly of the type designed to be positioned on a supporting surface such as the ground or floor and including a support platform having an apertured grid structure dimensioned and configured for placement of both feet simultaneously thereon. A blower assembly directs a forced flow of air into interruptive relation with a heater structure and there beyond into an air chamber which includes a plurality of air guides specifically structured to proportion the quantity of air delivered to the various portions of the air chamber such that heated air will rise from the air chamber and pass through the overlying grid structure to engage and envelope the bottom and sides of the feet placed thereon. An additional air vent is disposed in the path of fluid flow so as to pass heated air over the toes, front and top portion of the feet for drying thereof.

Abstract: The present arrangement is a hot zone structure for a vacuum furnace which includes an endlessly shaped outside wall (e.g. shaped substantially into a circle) preferably made of stainless steel. Disposed next to the inside surface of the outside wall is a layer or layers of heat insulating material means such as graphite felt. Further disposed next to the inside surface of the insulating material means is an inside wall preferably made of graphite. The inside wall defines the chamber of the hot zone structure into which items to be heat treated are placed. Passing through the outside wall, through the layer of heat insulating material, and through the inside wall are many continuous apertures. At the end of each continuous aperture there is located a threaded terminal piece and threaded into each terminal piece is a graphite nozzle. Accordingly there is a plurality of graphite nozzles passing from outside the outside wall of the hot zone structure through into the inside chamber of the hot zone structure.

Abstract: A surface mountable device for drying bathers has an enclosed, vertically or horizontally oriented chamber. An elongated air passageway is located on the front of the chamber. Means for providing drying air is attached to one end of the chamber. The chamber has cross sections which diminish from the end attached to the means for providing drying air to the opposite end. The cover has attachment means for attaching the device to a desired surface, obviating the necessity for recessing the device in the surface.

Abstract: An apparatus for drying of articles traveling upon a conveyor which utilizes a housing defining a plenum chamber and a drying chamber therein for use in cooperation with a conveyor which enters the drying chamber at a conveyor inlet position and exits the drying chamber at a conveyor exit position. The plenum chamber is separated from the drying chamber by a particularly constructed airflow device which achieves various specific desired airflow patterns depending upon the type of article being carried upon the conveyor traveling through the drying chamber. A blower is included supplying pressurized air for drying to the plenum chamber where the pressure is equalized and applied in this manner to a plurality of slots defined in the airflow control.

Abstract: There is provided a dryer which is particularly adapted to dry a plurality of fireman's gas masks. The dryer includes a first enclosure having a plurality of air inlet holes through its top, with a second enclosure covering the air inlet holes and being connected to a forced air fan. A plurality of air outlet holes is provided in the bottom of the first enclosure. Tubes from the gas masks are connected to certain of the air inlet holes whereby the forced air passes onto the inside surfaces of the mask. The other air inlet holes provide forced air for drying the outside surfaces of the masks.

Abstract: A pulverulent, water-soluble material is agglomerated by projecting the material in a stream through a moistening zone. Means are provided for directing an aqueous gas towards the stream of particulate material in the moistening zone so that the stream of particulate material is surrounded by and confined throughout its path of travel through the moistening chamber as particles of the particulate material are moistened and fused, and means are provided for drying the material. Means are also provided for feeding a cooling gas and/or a stream of steam adjacent to and about the periphery of the stream of material.

Abstract: A trailer for storing and/or drying harvested crops, such as peanuts, which trailer is economical to build yet will store a large volume of harvested crops and will prevent mold by natural air flow therethrough. The trailer has a front truck axle with a frame for a deep narrow box being mounted thereon. The frame is enclosed on the sides with cattle panel wire and hardware cloth attached to the frame. A perforated, galvanized, corrugated tin forms a floor of the deep narrow box. An inner cage provides extra air space for drying. A gate is provided at the lower rear of the deep narrow box and a hitch at the lower front. Welded angle iron forms the frame along with diagonal braces and cross rods. Ladder steps are formed by steps attached to the angle iron.

Abstract: A popcorn popper of the heated air flow type wherein the popping chamber is shaped to have a plurality of radially arranged holes along a bottom periphery with the lower wall portion being of gradually smaller diameter and the bottom having a raised portion and wherein by a diffusing device which directs the heated air inward from the outer periphery and upward through the holes in the bottom of the chamber, a more even and efficient heating is attained.

Abstract: A heater cabinet which utilizes a source of steam heat to elevate to a predetermined working temperature various industrial containers and the contents thereof. Containers suitable for use with the heater cabinet include barrels, drums, pails, nondisposable and disposable liquibins, and the like. In a preferred embodiment the cabinet includes a plurality of insulated walls which define an enclosure. Access to the enclosure is provided by a pair of swinging doors hinged to the front wall of the cabinet. Mounted near the bottom of the enclosure is an open grate for supporting containers placed within the enclosure for heating. Beneath the grate and contiguous therewith is a steam coil for connection to a source of steam which imparts heat into the enclosure. Below the steam coil is a drip pan for collecting and containing any spillage or drippage which may inadvertently flow from the container.

Abstract: A method for roasting coffee beans in a roasting chamber, which includes depositing a quantity of coffee beans in the roasting chamber being small in proportion to the volume of the roasting chamber, directing a heatable air current through the roasting chamber substantially vertically from the bottom upward for rotating, upwardly whirling and circulating the coffee beans in a freely suspended state substantially untouched by each other and by the roasting chamber, and a device for carrying out the method.

Abstract: A drying device has a blower, a motor for driving the blower, a switch for actuating the blower motor unit, and the heating elements in the duct supplying the blower. The air supplied is received by an air towel having an open upper edge, a back wall, a front wall, and tapering side walls. Air exits the air towel from a slot disposed in the front wall of the enclosure member. The rear wall of the enclosure member also tapers gradually toward the bottom-most portion of the slot, as do the side walls of the enclosure member, so that, with diminishing volume enclosed by the enclosure member, a generally uniform air velocity of air flow outward from the slot along the vertical length thereof. The air is directed downwardly generally at a 45.degree. angle. Also, a flexible hose having a nozzle has an end in communication with the air supplied; the end in communication with the air supply penetrates a side wall of the enclosure member.

Abstract: A coffee roasting apparatus which includes a coffee roaster device which comprises a cylindrical container formed preferably of glass material, a cylindrical drum rotatably extending within the center portion of container, and a heater element disposed within the drum. The drum is formed of wire cloth and driven by a motor. Coffee directly receives radiation heat through the drum. Also, the roaster device is rotatably supported in a housing, which is provided with a cooling space which enables the apparatus to automatically proceed to the discharge of the roasted coffee beans. The interior of the roaster device and the cooling space are connected by an open air circulating pathway. Therefore, the cooling of the roasted coffee beans and the interior of roaster device are separately accomplished with a single air pathway.