Patents Examined by Steve Gravini
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Patent number: 5689893Abstract: A desiccant canister assembly for use in an air dryer system includes a pair of concentrically disposed casings, top and bottom end caps, top and bottom porous plates and moisture absorbing material. A cylindrical opening is defined in between the casings. The top end cap affixes to the upper ends of the casings. The bottom end cap affixes to the lower ends of the casings. Each end cap features openings that allow air to flow through the cylindrical opening. The bottom porous plate is situated at a bottom of the cylindrical opening against the bottom cap. The top porous plate is slidably disposed within the cylindrical opening near the upper ends of the casings. The absorbing material is disposed within the cylindrical opening between the porous plates. The desiccant assembly also includes a mechanism for compacting the absorbing material between the porous plates.Type: GrantFiled: September 13, 1996Date of Patent: November 25, 1997Assignee: Westinghouse Air Brake CompanyInventor: Matthew D. Mitsch
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Patent number: 5687674Abstract: A steam power plant for generating electric power has a fossil-fuelled boiler, a water-steam cycle for generating high-tension, superheated steam for a steam turbine, an economizer to transmit heat from flue gas to the feed-water, an air preheater to transmit flue gas heat to fresh air and devices for removing dust, sulphur and possibly nitrogen from the flue gases. In order to optimize heat exchange in the air preheater during operation and reduce the heat loses during start-up of the steam power plant, a heat exchanger system is provided with sections through which recirculated air and a heat vehicle medium flow, in which the section carrying the air is connected on the intake side to the fresh-air outlet of the air preheater and on the outlet side to the fresh-air intake of the air preheater.Type: GrantFiled: February 3, 1995Date of Patent: November 18, 1997Assignee: Saarbergwerke AktiengesellschaftInventors: Uwe Johanntgen, Franz Josef Marx
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Patent number: 5685086Abstract: Method and apparatus for drying objects that may have been wetted in a manufacturing The objects are submerged in a rinse liquid in an enclosed chamber, and aerosol particles from a selected drying liquid are introduced into the chamber above the rinse liquid surface, forming a thin film on this surface. As the rinse liquid is slowly drained, some aerosol particles settle onto and form a film on the exposed surfaces of the objects, and displace and remove rinse liquid residues from the exposed surfaces. Surface contaminants are also removed by this process.Type: GrantFiled: March 14, 1996Date of Patent: November 11, 1997Inventor: Gary W. Ferrell
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Patent number: 5685089Abstract: A process for spray drying of ceramic suspensions for the production of a powder which is dust free, sufficiently stable for storage and with good flow characteristics. The ceramic suspension is spray dried in a chamber (1) to a powder with a water content which is 0.1-10% higher than required in the final powder and hereafter fluidized in a fluid bed (6) with ambient air for an evaporative cooling process, whereby the water content is reduced to the required value at the same time as the powder is cooled. The produced powder has a high water content without tendency to lumping.Type: GrantFiled: May 23, 1996Date of Patent: November 11, 1997Assignee: APV Anhydro ASInventors: Jens Getler, Stuart Gibson, S.o slashed.ren Fredsted, Per Nielsen
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Patent number: 5682683Abstract: The present invention pertains to the problem of chopping, drying and compressing into pellets--which shall be used especially as a fuel--freshly harvested biomass, especially cereal plants, in one operation. The chopped stalk material is moved forward for this purpose according to the present invention over a broad surface in a thin layer (32) in the manner of an accordion, while a warm air flow passes through it, before the stalk material is fed into the intake wedge of a pelletizing device (15). Screw conveyor groups (11, 12, 13) arranged at different levels are preferably used as the conveying means, and their direction of conveyance (23) is at right angles to the direction of travel (24) of the harvester (1), whereas the gaseous heating medium flows through the layers (32) being conveyed vertically (29) from bottom to top.Type: GrantFiled: January 11, 1996Date of Patent: November 4, 1997Assignee: Franz HaimerInventor: Franz Haimer
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Patent number: 5680712Abstract: A far infrared radiation heater 33 is disposed on the back of a ceiling of a drying chamber 11. The inside of the drying chamber 11 is evenly heated by the heat emitted from the far infrared radiation heater 33. The drying chamber 11 is provided with air charge means 16 and air exhaust means 17 each communicating with the inside thereof. Outside air is introduced into the drying chamber 11 by means of the air charge means 16. On the other hand, the air exhaust means 17 continuously maintains the inside of the drying chamber 11 in a state of reduced pressure. Thus, objects to be dried which are placed in the drying chamber are dried by heating under reduced pressure while continuously introducing fresh air. Therefore, the present invention provides a system for drying objects to be dried whereby not only can dried products be produced within a short period of time but also the flavor is satisfactorily retained in the dried products.Type: GrantFiled: October 25, 1995Date of Patent: October 28, 1997Assignees: Shin Kiyokawa, Masaru YanagisawaInventors: Shin Kiyokawa, Masaru Yanagisawa, Hideo Namiki
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Patent number: 5680711Abstract: A system wherein air moves in a primary path over materials to be processed and wherein at least a portion of the air moves in a supplemental path for processing the air. Such system comprises a primary chamber of air for receiving material to be processed by a flow of air. The primary chamber has an air supply opening and an air return opening. A secondary chamber is provided for receiving air to be processed in a flow of air. The secondary chamber has an air supply opening and an air return opening. The air supply openings of the primary chamber are in flow communication with the air return opening of the secondary chamber and with the air return opening of the primary chamber being in flow communication with the air supply opening of the secondary chamber. The secondary chamber has a first path and a second path. A heat exchanger extends between the first path and the second path.Type: GrantFiled: March 1, 1996Date of Patent: October 28, 1997Inventor: Jose Moratalla
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Patent number: 5678324Abstract: A method for improving the resistance of cellulosic products against mold and decay, as well as for enhancing the dimensionally stability of the products is disclosed. The cellulosic products are subjected to heat treatment, which is carried out at an elevated temperature. The products are obtained by drying to a moisture content of less than 15%, and keeping the resulting products in a moist atmosphere at a temperature of at least about 150.degree. C. for 2 to 10 hours until a weight loss of at least 3% has been obtained.Type: GrantFiled: November 9, 1995Date of Patent: October 21, 1997Assignee: Valtion Teknillinen TutkimuskeskusInventors: Pertti Viitaniemi, Saila Jamsa, Pentti Ek, Hannu Viitanen
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Patent number: 5675910Abstract: A recirculating batch peanut drying apparatus including a drying station for heating the peanuts, a tempering station for cooling the peanuts after heating, and a recirculating device which transports the peanuts in a continuous flow between the drying station and the tempering station.Type: GrantFiled: August 21, 1996Date of Patent: October 14, 1997Assignee: Lee E. Norris Construction & Grain Co., Inc.Inventors: Lee E. Norris, Daniel L. Norris, Aaron L. Norris
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Patent number: 5675906Abstract: 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.Type: GrantFiled: September 20, 1996Date of Patent: October 14, 1997Inventors: Tsung Li Li, Tsung Hwa Li, Yuan Jiun You, Hsi Mei Lee
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Patent number: 5675909Abstract: The generation of volatiles from liquid or solid materials is enhanced and accelerated by exposure to microwave radiation. Normally the energy transfer is effected preferentially toward the liquid or solid materials over the generated gaseous volatiles. Sufficient energy is provided at a selected rate that enhances the generation of volatiles to effect removal as vapor or to produce a pressurized vapor phase. Flow-through separations from a matrix having a microwave-absorbing liquid component are conducted by exposing to microwave radiation to vaporize this component and processing the vapor either by flowing through a selective permeable membrane, or by enclosing the vapor and matrix in a confined space and flowing matrix through a selected separation medium, and recovering residual matrix. These separations are particularly useful in analysis contexts.Type: GrantFiled: September 27, 1996Date of Patent: October 14, 1997Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of EnvironmentInventor: J.R. Jocelyn Pare
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Patent number: 5675905Abstract: An apparatus and method for the drying of produce and particularly leafy vegetables. A spin dryer (100) is provided which releasably receives and holds a plurality of manually liftable field baskets (21). A turntable assembly (110) is rotatably mounted to a stationary support structure (105) and operatively coupled to a drive assembly (121). Turntable (110) is adapted to hold a plurality of baskets (21) preferably with the baskets (21) positioned on their sides with their perforated bottom walls (24) facing outwardly and away from the turntable spin axis (14). Produce pieces (22) are preferably stacked in baskets (21) in a parallel vertical orientation with their stems (31) proximate the bottom walls (24) of the baskets (21).Type: GrantFiled: June 14, 1996Date of Patent: October 14, 1997Assignee: The Great Northern Equipment Company LLCInventor: John Hougham
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Patent number: 5675913Abstract: A photosensitive material processing apparatus is equipped with a drying section in which a photosensitive material processed with a processing solution is conveyed by a plurality of rollers and dried by drying air from a drying air blowing device. In the photosensitive material processing apparatus, a plurality of heating rollers is disposed to form a part of the above-described plurality of rollers and whose surfaces are heated by a heat source. A control means effects on-off control for the heat source during processing of the photosensitive material to set the surface temperature of each of the plurality of heating rollers and to control the drying air blowing device to lower the surface temperature of each of the plurality of heating rollers by the drying air during a standby period. Accordingly, during the standby period, the surface temperature of each of the plurality of heating rollers is lowered forcibly by the drying air, so that overshooting is restricted.Type: GrantFiled: March 31, 1994Date of Patent: October 14, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinichi Matsuda, Ryouei Nozawa, Jun Ikeda, Kenro Yamamoto, Mitsuru Katsumata
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Patent number: 5673495Abstract: A drying section of a papermaking machine is constituted of a plurality of top-felted single-tier drying section which terminate with one or at most two two-tier sections which are both top-felted. The invention allows broke to fall by gravity, greatly facilitating broke removal and recycling. Moreover, the location of the double-tiers at the end of the drying sections affords opportunity for controlling curl.Type: GrantFiled: October 12, 1995Date of Patent: October 7, 1997Assignee: Voith Sulzer Papiermaschinen GmbHInventors: Ronald F. Jilek, Markus Oechsle
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Patent number: 5671544Abstract: A substrate drying apparatus includes a process bath having an object containing region for containing an object to be treated, a treatment liquid containing region for containing a volatile treatment liquid, and heating member for evaporating the treatment liquid, a receiving container, provided below the object containing region, for receiving water removed from the object with use of the evaporated treatment liquid, an exhaust pipe, attached to the container, for exhausting the water from the container to the outside of the process bath, and a cooling device, provided above the object containing region of the process bath, for condensing the evaporated treatment liquid, wherein the exhaust pipe has a valve and a branch pipe branched from the exhaust pipe such that the branch pipe is closer to the container than the valve is.Type: GrantFiled: August 20, 1996Date of Patent: September 30, 1997Assignees: Tokyo Electron Limited, Tokyo Electron Kyushu LimitedInventors: Kenji Yokomizo, Hiroshi Tanaka, Shori Mokuo, Teruomi Minami
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Patent number: 5671549Abstract: An improved steam heated corrugating roller includes an inner heating steam chamber constructed with a longitudinal cone shape with the exit for condensates at the wider end. Conduits are connected through the wider ends to a ring shaped housing. A ring is placed in the housing and includes several independent sectors which allow for radial movement between two positions vis a vis the bottom of the housing. This allows the conduits to remain open when the roller is spinning and closed when it is not spinning.Type: GrantFiled: September 11, 1995Date of Patent: September 30, 1997Assignee: Talleres Irunes, S.A.Inventor: Desiderio Garcia Jimenez
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Patent number: 5671548Abstract: A three row drying cylinder group for a drying section of a paper machine or the like. The bottom cylinder row felt only passes through the bottom row. The top cylinder row felt passes from the top row, wraps the first middle row cylinder as a deflection element, passes over the next top row cylinder, and then is guided so that the opposite side of the top felt passes the next middle row cylinder and is guided back to the top row to alternate between the two ways of passing the middle row cylinders. Those middle row cylinders which are deflection elements may be heated or not and may deliver suction or vacuum to hold the web to the felt.Type: GrantFiled: June 13, 1996Date of Patent: September 30, 1997Assignee: Voith Sulzer Papiermaschinen GmbHInventors: Dieter Blaschka, Werner Leitenberger, Andreas Merz
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Patent number: 5671546Abstract: A vacuum remediation system for remediating various devices and apparatus is shown. A moisture evaporation device including a vacuum system is described to provide a reduced level of pressure on the apparatus being remediated. A control circuit controls the operation of the moisture vaporization device and includes a timed control operation to limit and actuate operation of the remediation process. A resilient member having a vacuum aperture is described in combination with a removable encapsulation chamber having a fluid-sealing surface to cooperate with the resilient member. A vibration system is adapted to impart low levels of vibration to the apparatus being remediated. The operation is such that unwanted moisture is vaporized through action of a reduced atmospheric pressure produced by the pump, and the vibration in conjunction with the aspiration removes unwanted moisture and contamination particles from the apparatus being remediated.Type: GrantFiled: December 14, 1995Date of Patent: September 30, 1997Inventor: David M. Haala
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Patent number: 5669154Abstract: An air drying and purification system for compressed air is disclosed. The system is adapted particularly for use with dental compressors. The system comprises: (a) a centrifugal separator chamber for at least partially drying and purifying cooled compressed air from a compressor by separating moisture and other contaminants from the compressed air, (b) a drying chamber containing a bed of absorbent material for absorbing moisture from the cooled, partially dried and purified compressed air, and (c) an assembly for periodically ventilating the separator and drying chambers. A particular feature of the system is that the compressed air that is vented periodically from the drying chamber is used to cool compressed air at elevated temperatures from the compressor.Type: GrantFiled: February 21, 1996Date of Patent: September 23, 1997Assignee: A P Systems (Australia) Pty., Ltd.Inventor: Erasmo Mimmo Bellomo
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Patent number: 5669157Abstract: A apparatus for separating pieces of laundry, comprising a drum which is rotatable about a substantially horizontal axis and with an open front and an open rear, which drum is accommodated in a housing, in which the rear of the drum is almost closed off by a stationary wall, which is provided in the middle with an engaging opening in which engaging means for engaging and feeding through the pieces of laundry are arranged, and in that in the housing air conveying means are provided for transporting the pieces of laundry from the front to the rear of the drum. A method for separating pieces of laundry with the help of the apparatus according to the invention.Type: GrantFiled: May 16, 1996Date of Patent: September 23, 1997Assignee: Amko International B.V.Inventor: Gerardus Henricus Maria Kuipers