Abstract: A laboratory dryer especially for drying potentially infectious or toxic samples has a housing with an air inlet and an air outlet, the housing defining an air flow path. The samples are received at a station between the inlet and the outlet along the air flow path, and subjected to a powered air flow via a fan. A hydrophilic filter element intersects the air flow downstream along the air flow path from the samples and upstream of the outlet, and captures particulate matter and water droplets which would otherwise be carried by the air flow from the housing into the room where the dryer is located. An electric heater is disposed in the housing adjacent the inlet and downstream of the fan. The housing can have an internal cross section of decreasing area proceeding towards the samples along the air flow path, whereby a velocity of the air over the samples is increased.

Abstract: A system, apparatus and methods are described for the treatment of fibrous materials and, in particular, works of art on paper, with aqueous treating fluids introduced to a treatment chamber by means of an ultrasonic humidifier creating contact between the fibrous materials being treated and an absorbent material beneath it through air pressure, and drawing filtered air through the material being treated to dry the material by means of an underlying vacuum.

Abstract: A lint filter having a container provided with a drawer. A fitting is associated with the container for connecting a hose from a clothes dryer and the like to the container while at least one aperture is provided adjacent the fitting for permitting air carrying the lint into the container to escape therefrom, a baffle is disposed within the container in order to form a flow path for the air and lint through a filter causing the lint to adhere thereto. A rotating filter and a stationary wiper blade are means for cleaning the filter.

Abstract: A method and apparatus are disclosed for delivering a flow of clean air to an enclosure (14) in which a web (12) is to be dried, including a fan (18) for generating a flow of contaminated air, a duct (20) for directing the flow of contaminated air into a distribution plenum (22), flow turning vanes (24) and a baffle plate (32) within the plenum for distributing the flow of contaminated air and at least one high-efficiency particulate filter (26) for filtering the contaminated air to produce a flow of clean air which is passed into the enclosure.

Abstract: An apparatus for collecting lint from a gas comprising a shell, a gas passageway through the shell, and a lint-collecting component positioned to collect lint from the gas. The lint-collecting component has a vertical longitudinal axis and a collecting surface, preferably cylindrical, surrounding the longitudinal axis. The apparatus also includes a cage which causes the lint to accumulate in a plurality of sections on the collecting surface. The shell has a smooth interior surface to allow the lint to travel over the surface without hang-up. A blow-off system is provided to remove accumulated lint from the collecting surface. The blow-off system includes an air reservoir and a regulator/filter for filling the reservoir with air from a supply line at a controlled rate. A control system activates the blow-off system and includes a timed delay to allow the effects of coasting to minimize.

Abstract: An apparatus for collecting lint from a gas comprising a shell, a gas passageway through the shell, and a lint-collecting component positioned to collect lint from the gas. The lint-collecting component has a vertical longitudinal axis and a collecting surface, preferably cylindrical, surrounding the longitudinal axis. The apparatus also includes a cage which causes the lint to accumulate in a plurality of sections on the collecting surface. The shell has a smooth interior surface to allow the lint to travel over the surface without hang-up. A blow-off system is provided to remove accumulated lint from the collecting surface. The blow-off system includes an air reservoir and a regulator/filter for filling the reservoir with air from a supply line at a controlled rate. A control system activates the blow-off system and includes a timed delay to allow the effects of coasting to minimize.

Abstract: An apparatus for forming an image by electrostatic charge comprises an image forming part including a photoconductive drum and an electrostatic charger for forming an image by electrostatic charge, and an ozone eliminating filter located in the air flow generated by the rotation of the photoconductive drum. The ozone eliminating filter includes a coating layer made of a coating material to eliminate ozone in the ambient air. The coating material includes an ozone eliminating substance an organic binder and a foaming agent. The ozone eliminating filter may be made of adhesive double-coated tape which includes an ozone eliminating substance on one side.

Abstract: A frame plate is movably mounted on a guide shaft erected from a base for movement upward and downward, a space formed between the base and the frame plate being served as the insertion passage for the typing sheet. The frame plate is provided thereon with a printer adapted to print such data as time and serial numbers on the inserted typing sheet, a cam shaft adapted to move the printer forward and backward, and a motor for rotating the cam shaft. A spring is disposed between the frame plate and the base in order to normally pull the frame plate toward the base side, a rubber stopper being disposed to a bottom surface of the frame plate in order to normally maintain the distance between a printer head and the surface of the typing sheet constant.

Abstract: An air filter for a hand held hair dryer employing a stretchable filter material which covers the air inlets of the hair dryer. A circular seal is fixed to one end of the filter material and stretches around the air outlet nozzle of the hair dryer. A second circular seal is fixed to the other end of the filter material at 90 degrees to the other seal and stretches around the handle of the hair dryer. The filter material conforms to the shape of the portion of the hair dryer it covers.

Abstract: A microprocessor controlled clothes dryer wherein the posture of a switch in the lint filter system is monitored and a signal to CHECK FILTER is displayed if the switch posture has not changed. The switched is a reed switch mounted stationary on the lint filter assembly and a magnet operator is attached to the removable filter screen. Movement of the filter screen into and out of filtering position in the lint filter assembly of the exhaust duct changes the posture of the magnet operated reed switch. Change of posture of the switch through its cycle impresses a change of voltage on the microprocessor. The microprocessor effects control over the CHECK FILTER signal that is visually illuminated on a VFD tube; such that, if the microprocessor sees the cycling of the switch the CHECK FILTER signal is extinguished.

Abstract: A lint collecting device, particularly suited for use in a clothes dryer has an access opening through a front wall of the dryer above the horizontal access of the dryer and laterally offset and spaced from a vertical line passing through the access. The lint collecting device includes a lint screen held horizontally in a lint collecting zone formed in an air duct within the dryer cabinet and a viewing window is provided in the air duct and the dryer cabinet to render a portion of the lint screen visible from the exterior of the cabinet. A light source may be provided for illuminating a portion of the lint screen.

Abstract: A vent bag for a clothes dryer is provided and consists of a pouch with an air filter at its distal end that is releasably secured on a vent pipe of the clothes dryer so that the air filter can catch lint coming out of the vent pipe and recirculate the warm moist exhausted air from the vent pipe for energy conservation.

Abstract: A system for drying microelectronic, optical and other parts that in the course of their processing are rendered wet with solvents or other liquids, which if not fully evaporated from the parts will contaminate and impair their quality. The system includes an open-ended drying chamber having a work zone intermediate its sides in which the parts to be dried are supported for exposure to a gas stream. One end of the chamber defines a gas inlet to admit the gas stream which sweeps the entire chamber. Coupled to the drying chamber is a pressure chamber in which a submicron particle filter unit of the Hepa type producing a relatively low pressure drop is disposed to cover the gas inlet.

Abstract: A lint collecting device, particularly suited for use in a clothes dryer has an access opening through a front wall of the dryer above the horizontal access of the dryer and laterally offset and spaced from a vertical line passing through the access. The lint collecting device includes a lint screen held horizontally in a lint collecting zone formed in an air duct within the dryer cabinet and a viewing window is provided in the air duct and the dryer cabinet to render a portion of the lint screen visible from the exterior of the cabinet. A light source may be provided for illuminating a portion of the lint screen.

Abstract: An air filter and humidifier is attached to the back of a clothes dryer. Exhaust air is ducted from the clothes dryer exhaust port to the inlet port on the bottom of the filter/humidifier. From there, the exhaust air is directed upwardly through the filter/humidifier. A deflector redirects the exhaust air obliquely downward against the surface of water within a container. The water humidifies and filters the exhaust air. A variable amount of the conditioned air escapes through an adjustable vent lid into the home and the remainder is discharged through the filter/humidifier and ducted outdoors. A hinged or removable lid allows the user to remove the water container to add or replace water.

Abstract: A novel filter system for fluid bed granulator/dryer machines which utilizes pleated filter elements that can be stacked end to end so as to remove material from the exhaust air and wherein a number of filter elements can be mounted parallel to each other and end to end to obtain the desired filter capacity. In a first embodiment, the filters extend horizontally across the machine and in the second embodiment they extend it in a slanted plane across the machine. The filters can be cleaned by alternately providing reverse air flow through them.

Abstract: A clothes dryer having a cylndrical lint screen connected to and extending from the rear of a rotating clothes drum having a perforated front annulus and a rear air inlet. An air duct has a mouth at one end positioned adjacent to the perforated annulus and a blower is connected to the opposite end. The blower creates an induced draft on a burner located adjacent to a portion of the lint screen by drawing air from the burner into the drum air inlet and out the perforated annulus into the duct. From the blower, the air is forced into a plenum which is separated into two compartments by the rotating lint screen filter. In passing from one compartment through the lint screen filter to the other compartment from which it is exhausted, airborne lint in the air is collected on the lint screen filter. Rotation of the lint screen filter moves the lint into the flames of the burner where the lint is incinerated.

Abstract: A method of cleaning dryer exhaust gases during the drying of wood chips, wood fibers and the like is described in which at least one part of the dryer exhaust gases is filtered at a temperature lying above its dew point. At least one part of the particles which are filtered out in this way is conveyed, together with flushing air which likewise has a temperature above the dew point, substantially continuously into a combustion chamber and is burned there for hot gas generation.

Abstract: A fabric dryer includes a front bulkhead assembly providing a pair of airflow outlets from the drying chamber. A first airflow outlet is associated with the stationary front bulkhead adjacent the access opening of the fabric dryer. A second airflow outlet is integral with the lint filter and is located within an airflow space formed between the access opening and a projecting portion of the access door. The projecting portion of the access door generally overlies the second airflow outlet to protect the outlet from blockage by fabrics being tumbled.

Abstract: There is disclosed a tumble dryer for cloth goods having a filter for collecting lint carried by heated air circulated through cloth goods contained within a rotatable drum, and a system for removing lint collected on the filter by causing air to be drawn through it in a direction opposite to that in which it passes during a drying cycle as well as to be swept across the upstream side of the filter and then out of the dryer for disposal.

Abstract: An automatic clothes dryer includes a lint screen mounted within a lint screen assembly to filter lint entrained in an air flow stream during the drying operation. The lint screen assembly includes a shaped housing spaced close to the peripheral edges of the screen's lint collecting surface, yet spaced further from the screen's midportion to enable quantities of lint to accumulate on the screen and still be removed from the dryer without the risk of the lint falling from the lint screen. The lint screen assembly is held within the dryer only by a pair of fastening screws.

Abstract: An air actuated lint removing system for cleaning lint filters in clothes dryers includes means for moving the lint filter and an air flow directing means with respect to one another to remove accumulated lint, and lint transporting means to move the lint to a lint collection reservoir.

Abstract: A vessel (10) is formed with a convexity of the shape of a dish (24). An immersion tube (40) protrudes into the vessel (10) and terminates inside the dish (24), being adapted for connection to a source of gas which will flow through the immersion tube in the direction of the dish by which it will be deflected so as to fluidize pulverous or granular material (30) contained in the vessel (10). A filter casing (50) is placed on top of the vessel (10) and it contains a filter (56) to hold back particles of material being treated which left the vessel. A rotating vane (60) is associated with the filter (56) and driven by a turbine (70) arranged in the immersion tube (40) so that the rotating vane will sweep across the filter (56). A slot nozzle (74) is formed at the rotating vane (60) and sucks off material from the filter (56) so as to keep it clean. The particles of material sucked off pass through a hollow shaft (62) into the immersion tube (40) and then back once more into the vessel (10).

Abstract: An improved clothes dryer characterized by a diffuser located inside the dryer drum for receiving heated air flow and directing the same towards and into intimate contact with wet clothing in the drum at a plurality of locations spaced along the axial length of the drum. Also provided is a dryer temperature control system operative to control the temperature in the dryer drum by maintaining a desired preselected temperature on a steady state basis and/or by varying the rate of air flow through the dryer drum; a clogged filter detector operative to generate an output signal indicating a clogged filter in response to the rate of forced air flow through the dryer dropping below a predetermined minimum acceptable level, and a laundry system wherein hot dry attic air is supplied to the dryer while the hot dryer exhaust and drain water from a washer is used to preheat water in a storage tank prior to such water being supplied to a hot water heater.

Abstract: A fluidized bed apparatus is provided which comprises (a) a fluidized bed container having gaseous fluidization agent intake means and discharge means; (b) gaseous fluidization agent distributor means comprising a distributor-separator plate arranged intermediate said gaseous agent intake and discharge means that is adapted to receive a mass of solid particles and substantially separate said particles from said gaseous agent intake means and has a plurality of parts therethrough spaced over substantially the entire surface thereof which have means for controlling the velocity and dispersion of a gaseous fluidization agent passing between said intake means and said discharge means; and (c) vibrating means for vibrating said container. Preferably, said container includes filter means intermediate said distributor-separator plate and said gaseous agent discharge means.

Abstract: A dryer having a cylindrical lint screen connected to and extending from the rear of a rotating clothes drum. The drum is defined by a circumferential wall having perforations or air exit ports. A casing surrounds the drum thereby defining an air recirculation passageway from the perforations radially through the screen. Airborne lint is deposited on the screen as air passes therethrough en route to either the drum air inlet or the exhaust outlet. The lint is incinerated as the screen rotates past the drying air heat source.

Abstract: A lint filter for use in a clothes dryer includes a lint shield extending thereover with a door slidable over a through opening and a catch on the door to open the door as the filter is inserted into the dryer and to close the door as the filter is withdrawn. The lint shield covers the filter to prevent lint from accidentally falling therefrom and is hingedly connected to the filter for access during cleaning.

Abstract: A lint and raveling collector for a clothes dryer is installed on the side of the rotating drum. The lint and raveling collector has a lint and raveling filter and a lint and raveling collecting box. The lint and raveling filter has a net-like filter member, and ribs provided on the surface of the net-like filter member to prevent friction between the filter member and the clothing. The collecting box has an opening formed at its portion facing the ribs. The collecting box covers the lint and raveling filter in such a manner that a space for accumulating the lint and raveling is defined between the lint and raveling filter and the inner wall of the whole portion of the collecting box except for the opening portion. By provision of the ribs, the lint and raveling can not pass through the interstices of the filter member, and clothing is prevented from directly rubbing against the surface of the filter member.

Abstract: A roasting chamber for roasting green coffee beans with a heated air current flowing from a lower air inlet region to an upper air outlet region of the roasting chamber, includes a roasting-waste settling chamber disposed in the air outlet region, the settling chamber being in the form of a substantially horizontal annular receiving trough having a substantially vertical central air inlet opening formed therein, an air-permeable and coffee-waste particle-impermeable filter covering the receiving trough, and a supplemental cup-shaped trough disposed concentrically below the receiving trough, the cup-shaped trough having a larger diameter than the air inlet opening and having an edge region disposed at a distance from the receiving trough defining a radial air passage therebetween.

Abstract: A fluff filtering device within a convection drying and/or setting machine for treating a textile material web includes a device for circulating an air stream through the textile material web, a device for heating the air stream, an active filter screen with a frame of a given thickness disposed substantially horizontally in an operating position upstream of the heating device in the air stream for preventing fluff and other deposites from reaching the heating device, the active filter screen being substantially horizontally removable from the machine for cleaning, the active filter screen being upwardly movable into another position by a distance at least equal to the given thickness, and another screen slideable under the active filter screen into the operating position when the active filter screen is in the other position.

Abstract: An apparatus for sterilizing containers such as bottles and vials for the pharmaceutical industry, in the form of a tunnel continuously traversed by a conveyor belt for said containers, comprising a sterlization chamber which utilizes a hot air stream in the laminar flow regime and is provided with air filters, characterized in that in said sterilization chamber the heated air is fed to a pressure chamber communicating in a sealed manner with said filters, and from these latter on to said containers to be sterilized, between said pressure chamber-filter system and walls of the sterilization chamber there being defined a jacket for recirculation of the air, in which the pressure is kept at a lower value than the pressure present in said pressure chamber-filter system.

Abstract: A convection drying and/or fixing machine having an interior chamber, includes a lint filtering device disposed in the chamber for treating a textile fabric web, including a component for drying and/or fixing the fabric web, means for circulating air in a heated air stream flowing from the fabric web to the component, a filter screen having a given hole size for protecting the component from lint and other deposits, the filter screen being disposed substantially horizontally in an operating position in the air stream from which the filter screen can be horizontally removed and cleaned, and a protective screen having substantially the given hole size, the protective screen being fixed substantially horizontally in place below or downstream of the operating position of the filter screen and above or upstream of the component to be protected in flow direction of the air stream.

Abstract: A drum type laundry dryer has an outer frame, a drying drum rotatably supported by the outer frame and adapted to receive laundry to be dried, a fan for introducing air into the drying drum, a heater for heating air to be introduced into the drying drum, air outlet ports in the drying drum and a filter device adjacent to the air outlet ports. The filter device is formed by a net and a lint collector disposed in opposite relationship to the net. The lint collector is annular and spaced from the net a distance which is smaller in the inlet section of the lint collector than in an inner section thereof.

Abstract: The invention relates to the control of loose lint or fly released by textile yarns which are in contact with yarn guides, feeding and tensioning devices and the like during their travel from bobbins to textile machines. According to the invention, creels or yarn feed devices are enclosed within a housing (2, 12, 76, 94) which is divided into a plurality of compartments (A, B, C: A', B', C': A", B") at least one of which is traversed by a yarn (Y) during its travel, air circulating means (38, 58, 78, 108) to circulate air in a continuous path through the compartments, and a partition (32, 66, 88, 106) provided between two adjacent compartments comprising a filter screen capable of trapping fly or lint carried by air passing therethrough.

Abstract: There is provided a fiber removing sieve for textile dryers which includes two sieve elements, one of which is removable from the recirculating stream of drying air for cleaning as the other element takes over operative removal of fibers from the stream of drying air.

Abstract: The invention relates to an apparatus for the treatment of continuously transported lengths of textile material comprising a housing within which is a rotatable drum filter, an extraction and cleaning nozzle extending approximately axially over the outer peripheral surface of said drum filter, and a blower and duct for establishing a circulating air stream through the textile material and the filter. Fibres extracted from the filter by the nozzle are conducted to and deposited on an air filter that also is located in the housing in a position to be readily accessible for maintenance.

Abstract: A vent adaptor is disclosed which is suitable for attaching to the end of a dryer vent to connect the dryer vent to the building exterior through an existing wall opening. The vent adaptor includes a T-shaped hollow fitting which is fabricated with a vertical connector leg attachable to the end of the dryer vent and an intercommunicating hollow, horizontal conduit. The horizontal conduit includes a forward, insulating branch which forwardly terminates in a transition piece for frictional engagement within the building wall and a horizontally juxtaposed, rearwardly positioned storage branch in communication therewith. An insulating plug is reciprocal within the conduit from a storage position within the storage branch to an insulating position within the building opening whereby the building opening can be plugged when the dryer is not in use.

Abstract: Smoothing washed garments (10) in the treatment chamber (11) of a finisher produces a considerable amount of fluff. To remove the fluff from the device in a trouble-free and effective manner the flowing medium carrying the fluff along is passed through a sieve belt (20) which conveys the fluff out of the device. Outside the treatment chamber (11) the fluff is removed in a suitable manner.

Abstract: A commercial laundry dryer with a perforated drum for the laundry mounted in a housing to rotate on a horizontal axis and the drum is of the full width and length of the housing to maximize the load size for the floor space occupied by the housing. The fuel-fired burner is mounted below the drum and faces upward with a deflector preventing the flame from contacting the drum. The fan for circulating the drying air is mounted above the drum as are dampers for selectively causing the drying air to be recirculated to the burner and drum or exhausted after a single pass and a lint collecting and discharging arrangement. The drying air is introduced into the bottom of the drum at the center, passes upwardly through the laundry load and out through the top of the drum near the axial ends.

Abstract: As a construction improvement to the commonly used device that typically is attached to the hose of a "hot air" clothes dryer to assist in indoor venting of the hot air, the within hose-attached device has a conical shape projecting into the path of the incoming hot air which, after being impinged upon, deflects the hot air along angular paths which significantly increases the volume of the hot air which is effectively discharged through the exit openings of the device, and to this extent the within device thus correspondingly diminishes the volume of hot air which otherwise back flows through the hose and adversely effects the operation of the clothes dryer.

Abstract: A drying apparatus includes a cabinet, an open-ended drum having a horizontal axis disposed eccentrically inside of the cabinet so that an air path is defined between the wall of the cabinet and the peripheral surface of the drum, an opening with a door disposed in the central portion of the front panel of the cabinet and faced toward the open-end of the drum, an air inlet port provided on one side of the front panel communicating with the air path, an exhaust port provided on the other side of the front panel and communicating with the interior of the drum, and means housed in the cabinet for supplying hot air into the interior of the drum.

Abstract: A drying apparatus includes a cabinet, an open-ended drum having a horizontal axis disposed in the cabinet, support means for rotatably supporting the drum, an opening with a door disposed in the front panel and faced toward the open end of the drum, an air inlet port provided in the cabinet, an exhaust port provided on one side of the door on the front panel and communicating with the interior of the drum, drive means for rotating the drum in the direction in which the lower portion of the drum moves away from the exhaust port, and means for supplying heated air into the interior of the drum.

Abstract: An automatic lint screen cleaner in an automatic dryer is provided with a foreign objects sump which provides a means for removing foreign objects from the area of the lint screen cleaner while preventing lint build up in the sump.

Abstract: A lint screen assembly for use in an elongated oven is provided to protect the duct work and nozzles which direct heated air against the fabric being heat treated within the range and is constructed so as to afford winding means for cleaning and rolling up a single pass of fabric intermittently in predetermined lengths for supplying fresh screen material as required.

Abstract: A heat recovery device is adapted for placement in the heat exhaust vent pipe of a conventional clothes dryer. The device includes a scrubber for primary removal of lint from the dryer exhaust and a final filter means for removing small particles of lint remaining prior to allowing the warm, humid dryer exhaust air to pass into the atmosphere of the interior environment of a home. The scrubber includes a series of ducts opening into an enlarged plenum and a baffle plate in the plenum to inhibit streamlined flow of air allowing the lint to settle to the bottom of the plenum, and the final filter includes a series of expanded aluminum screens or mesh for positively prohibiting passage of lint into the atmosphere. A clean-out tray is provided at the bottom of the plenum to facilitate removal of lint from the plenum for disposal.

Abstract: An apparatus for dehydrating synthetic resin pellets comprising a plurality of interconnected truncated conically shaped dehydrating screens disposed vertically with their smaller diameters being uppermost, whereat wet pellets are forcibly directed so that moisture on the surface thereof will be removed by the screens. Blower means are provided for providing upward flowing air to move the wet pellets through the interconnected screens.

Abstract: A hair dryer apparatus includes a casing in which an inner space is provided for receiving the head of the person whose hair is to be dried. A support member, which includes a motor-driven fan and a heating element, further includes a bow-shaped member which includes means for directly pivotally connecting the bow-shaped member to the casing.

Abstract: A method for using comminuted lignocellulosic waste material such as flake-like wood and bark chips which have been stored outside includes placing the material in a filter bed by movement in a first direction, and thereafter passing polluted effluent gas from a boiler furnace, for example through said filter bed in a direction generally perpendicular to said first direction to filter pollutants from said effluent gas and simultaneously dry the comminuted lignocellulosic waste material. During drying of the material a portion of the material on the gas outlet side of the filter bed, toward which the effluent gas proceeds, is maintained at a moisture content which is greater than the average moisture content of the lignocellulosic material at the time it is placed into the filter bed. The lignocellulosic waste material is thereafter used as furnace fuel or as a furnace for an industrial process.

Abstract: An energy saving vent is provided for selectively directing hot, moist exhaust air from a clothes dryer either through a downstream vent sleeve to the outdoors, or through a vent port to the indoors. The vent includes four major components principally molded from a synthetic plastic resin, the components being: an open sided housing; a closure panel for closing one open side of the housing; a valve member within the housing for selectively directing air through the housing in alternate paths; and a filter screen assembly for another open side of the housing. The selectively swingable valve carries a pressure relief means adapted to provide for passage therepast of pressurized exhaust gas when the valve is in its position to direct air flow indoors, and in the event that the flow of air indoors is blocked by the filter screen being clogged. The preferred filter screen is a truncated, basket-like, member that is carried on a frame which is removably carried in a slide channel defined on the housing.

Abstract: Lint is automatically separated continuously from a dryer exhaust stream, rolled into string-like masses and released from a collecting screen where it is picked up by an auger conveyor and transported to a storage receptacle in compacted form.