Separating Materials (vacuumizing Here) Patents (Class 100/90)
  • Patent number: 5735196
    Abstract: An apparatus for applying a force to laminated integrated circuit cubes in an oven chamber includes a force-applying member, an actuator for the force-applying member, and sealing structure for sealing the force-applying member to an opening permitting access by said force-applying member into the oven chamber. The sealing structure has a flexible sleeve, and the force-applying member passes through the sleeve. A first end of the sleeve is hermetically sealed to the force-applying member, and a second end of the sleeve can be hermetically sealed about the opening. The force applying member can move within the opening and the flexible sleeve will flex with this movement.
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: April 7, 1998
    Assignee: IBM Corporation
    Inventors: Stanley Robert Jordan, Gary Leon Stewart, Ralph Trollinger
  • Patent number: 5736007
    Abstract: Liquor removal from particulate solids such as wet wood pulp is achieved by applying a pneumatic or vapor pressure force through a pad of the wood pulp to compress the solids and to expel liquor from the solids. If air is used as a displacing medium, no wash liquor is added and the solids are simply compressed and some of the liquor is replaced by the gas passing through the suspension. If steam is used, not as a heating medium but as a pressure medium, an increase in liquor removal occurs over and above that removed by gas only due to the condensation of the steam to form a liquid front travelling before the steam through the solid suspension. Hence, in principle, a combination of pressure washing and displacement occurs resulting in a high efficiency in washing. Gas or steam could therefore simply be applied to any conventional operation to increase the washing efficiency both by compression and by displacement.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: April 7, 1998
    Assignee: Auckland UniServices Limited
    Inventor: Geoffrey Graeme Duffy
  • Patent number: 5730047
    Abstract: A portable refuse compacting container including a container for receiving a flexible refuse collection bag of the type typically known as garbage bags or leaf bags. Bulky refuse such as leaves, grass clippings and the like may be placed in the refuse collection bag where these materials are compressed by a compacting plate which is loosely received inside the container. The compacting plate is used to compress the refuse by an attached plunger arm which is affixed to the compacting plate and which is pivotally attached to a compaction lever. The compaction lever is pivotally attached to the edge of the top of the container. The compaction lever may be latched in place on the container. The container is provided with wheels for ease in moving either the full or the empty container from place to place. When the compaction lever is latched to the container, the handle of the compaction lever also serves as a handle for moving the container about on its wheels.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: March 24, 1998
    Inventor: H. Wayne Lindsey
  • Patent number: 5715747
    Abstract: A device for treating a heterogeneous mixture and more particularly for separating wax and honey in a mixture obtained following an uncapping operation. The device includes a feed hopper (18) opening onto a sleeve (12) fitted with holes (26) in which an Archimedes screw (14) is disposed and driven in rotation by a motorized system (16), solid evacuation elements (20) and liquid recovery elements (22).
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: February 10, 1998
    Inventor: Jean Fedon
  • Patent number: 5711215
    Abstract: Powdered substances are compressed by a process wherein the powdered substances are enclosed in a flexible receptacle, the receptacle is enclosed in a pressure vessel and the space between the wall of the receptacle and the wall of the pressure vessel is pressurized with compressed gas.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: January 27, 1998
    Assignee: Degussa Aktiengesellschaft
    Inventors: Gerhard Sextl, Sabine Bartelt, Klaus Wilmes, Roland Reuter, Rudolf Schwarz, Friedel Worch
  • Patent number: 5687644
    Abstract: Apparatus for expelling air from between the sheets of stacks of superimposed sheets has a conveyor which advances successive stacks of a series of stacks along a horizontal first path from a stack assembling first station toward a second station. The conveyor employs a reciprocable carriage for one or more tongs which engage the front end portion of fresh stack at the first station and entrain the stack toward the second station. A roller is mounted in a conveyance for repeated movement with the conveyance along a downwardly sloping second path from a raised position above and away from the first path to a lowered position of engagement with successive stacks which are being advanced toward the second station.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: November 18, 1997
    Assignee: E.C.H. Will GmbH
    Inventors: Harald Rann, Norbert Rilitz, Holger Schauer
  • Patent number: 5666878
    Abstract: A system that sterilizes and compacts medical waste. The system includes a vessel which has a door that provides access to an inner chamber. The inner chamber is coupled to a compressor and a source of heating fluid. The vessel also has a jacket that surrounds the inner chamber. The jacket is coupled to the source of heating fluid and a source of cooling fluid. The operation of the system is controlled by a controller. To sterilize and compact medical waste, the door is initially opened and the waste is placed inside the inner chamber. The door is closed to seal the vessel. A vacuum is pulled within the inner chamber to remove any moisture contained therein. Simultaneous with the creation of the vacuum is the introduction of heating fluid to the jacket to heat the vessel. Heating fluid is then introduced to the inner chamber to sterilize the waste. After the waste is sterilized, a vacuum is pulled to remove the heating fluid from the inner chamber. The waste is then compacted by a piston.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: September 16, 1997
    Assignee: Dover Corporation
    Inventor: Todd Taricco
  • Patent number: 5664491
    Abstract: Polystyrene baler for extreme compaction of expanded polystyrene or other similar materials where a ram forcibly acts to compress the expanded polystyrene material into a narrowing chamber where the narrowing chamber walls further act to compress the expanded polystyrene material to allow for air or gases trapped in the polystyrene material to escape so that a densely packed polystyrene bale is formed. A continuous bale is formed which can be broken or cut into desired lengths or weights. Vertically aligned walls of the bale chamber can be hydraulically actuated to accommodate the degree of compaction desired.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: September 9, 1997
    Assignee: Harris Waste Management, Inc.
    Inventors: Wayne Maki, Forrest Wildes, Fred Johnson, Ken Roberts
  • Patent number: 5565110
    Abstract: A method and apparatus for improving the operation of a vacuum drum filter. A hollow and perforated shower roll is located at the top of a vacuum drum apparatus for drying and cleaning paper pulp. The interior of the shower roll is provided with a liquid distribution pipe having a plurality of spaced openings therealong, the pipe also having a substantially vertically extending dam which extends radially to adjacent the lower interior surface of the shower roll. In operation, rotation of the vacuum drum in a vat of paper pulp to be dewatered results in the continuous formation of layer of pulp on its exterior surface, the layer being compressed by the shower roll at the nip between the vacuum roll and the shower roll. Concurrently, the shower roll discharges or exudes water onto and into the pulp layer at the nip.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: October 15, 1996
    Assignee: International Paper
    Inventors: C. Lamar Brady, Gary E. Keller
  • Patent number: 5558015
    Abstract: A hot press used, for example, for producing a thin printed board and a multilayered board, such as liquid crystal glass board bonded by a low-viscosity adhesive, and to a hot press suitable for forming a board requiring uniform bonding pressure. A hot press includes an upper and a lower bolster arranged in vertically opposed relation to each other, an upper and a lower heat plate respectively disposed in opposed relation to the upper and lower bolsters, a device for moving at least one of the upper and lower bolsters toward the other to produce a pressing force between the upper and lower heat plates, and pressure vessels respectively mounted on the heat plates. Each pressure vessel is made of a thin film and is filled with a fluid heating medium. When substrate blanks are interposed between the upper and lower pressure vessels and pressed by them, surface pressure for adhesive bonding becomes uniform, and heat from the heat plates is uniformly transferred to the blanks.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: September 24, 1996
    Assignee: Hitachi Techno Engineering Co., Ltd.
    Inventors: Akimi Miyashita, Mutsumasa Fujii, Haruo Mishina
  • Patent number: 5522478
    Abstract: The invention is an improved membrane press, and method of elevating a workpiece above the supporting surface of a work base. The membrane press includes a work base having a supporting surface for carrying the workpiece, and a foil-pressing frame positioned above the workpiece for heating and applying the laminating foil to the workpiece. The improvement in the membrane press includes a plurality of workpiece-lifting pedestals residing substantially beneath the supporting surface of the work base. A piston is located beneath each pedestal, and responds to the placement of the workpiece onto the supporting surface of the work base. The piston imparts an upward force on certain ones of the pedestals residing adjacent to and beneath the workpiece to raise the pedestals and workpiece upwardly above the supporting surface of the work base. The raised pedestals permit the top surface, corners, and peripheral borders of the elevated workpiece to be laminated.
    Type: Grant
    Filed: April 19, 1994
    Date of Patent: June 4, 1996
    Assignee: Smartech LLC
    Inventor: Hartmut Diekwisch
  • Patent number: 5517908
    Abstract: The baler embodies false side walls which act as spacers in the bale chamber while the bale is completed. After completion, dogs on the platen engage the false side walls; they are raised by the ascending platen, and retained in the raised position by dogs on the baler side walls while the platen descends and compresses the bale. The bale is wired to the platen, which, rising, lifts the bale out of the bale chamber and allows a carton to be inserted in the (opened) bale chamber. The platen, descending again, lowers the bale into the carton; the lifting wires are cut, the platen rises, and the carton is sealed and extracted from the bale chamber.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: May 21, 1996
    Inventor: Robert P. Stout
  • Patent number: 5505517
    Abstract: The present invention is a cover piece for a seat member of a bleacher seat unit. One embodiment of the invention is a single resilient polymeric piece adapted to be flexed and placed over a seat member which is provided with a front extension portion to effectively extend the from surface of the seat member. Another embodiment of the invention is a cover piece made up of two or more pieces including a top cover portion and at least one second cover piece sufficiently resilient to hold the top cover portion against the seat member.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: April 9, 1996
    Assignee: Crane Plastics Company Limited Partnership
    Inventors: A. Anthony Groh, Scott R. Gardner
  • Patent number: 5471921
    Abstract: An apparatus for production of dewatered and loosened biopulp, wherein precrushed raw biopulp is press fed by pistons (2) against a pair of counter-rotating press rolls (4, 5) between which the biopulp is dewatered. The pulp is then fed into a backpressure vessel (7) maintained at an overpressure, which prevents water from entering the backpressure vessel and remoistening the biopulp. The biopulp leaves the backpressure vessel through an air-tight compartment feeder (9) constructed like a revolving door. The press rolls include one of solid metal (5) and another (4) with a number of elastically mounted plates which can move radially in response to a radial load.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: December 5, 1995
    Inventors: Josef Kubat, Jan Abom, Carl Klason, Frederik von Bulsingslowen
  • Patent number: 5461973
    Abstract: A drum crusher crushes differently shaped and/or sized empty containers such as 55 gallon steel drums to facilitate recycling of the material in the make-up of the container. A compacting press actuated by remote controlled hydraulic pressure moves in the axial direction of the drums or containers with sufficient hydraulic pressure to crush the containers to a minimum size. Locating bars facilitate manual, mechanical or gravity feeding of the drums into the crushing apparatus and the manual, mechanical or gravity removal of compacted slugs from the crushing apparatus. Safety apparatus minimizes exposure of personnel to possible hazardous conditions.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: October 31, 1995
    Inventor: Lew B. Page
  • Patent number: 5433579
    Abstract: A front-loading refuse hauling truck having a plurality of air escape vents defined through an upper wall of a refuse container. The plurality of vents alleviate the formation of laterally extending refuse waves having crests and troughs which would otherwise form air pockets in the container in combination with the compactor body upper wall. A plurality of air escape vents are provided along the entire length of the refuse compactor body such that the body can be completely filled with refuse. Both new and existing refuse hauling trucks of the front-loading and rear-loading type can implement this invention to increase the refuse storage capacity. Both the waste collection companies, and the ultimate consumer stand to benefit from the cost savings of the present invention.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: July 18, 1995
    Assignee: McNeilus Truck and Manufacturing, Inc.
    Inventor: Garwin McNeilus
  • Patent number: 5410956
    Abstract: A vacuum hot platen press for pressing laminated boards includes a seal cover assembly for keeping the internal process chamber airtight. The seal cover assembly is fixed in an airtight manner to a cylinder plate located below the platens, through which the pressure cylinders extend in an airtight manner. The upper end of the cover assembly is in sliding airtight contact with the tensile strength members of the press. The sliding contact prevents elongation of the tensile members under pressing force, or vacuum forces on the cover assembly, from causing distortion or breakage.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: May 2, 1995
    Assignee: Meiki Co., Ltd.
    Inventors: Masahiko Ogawa, Koukichi Isobe, Takayuki Kouno
  • Patent number: 5391253
    Abstract: A press forms a long, thin laminated strip of plastic, metal and fiberglass. The uncured laminate will be laid up in a housing which has sidewalls and a base. A partition is placed over the laminate. The partition seals to sidewalls of the housing and is moveable relative to the housing. The partition divides the cavity of the housing into an upper section and a lower section. The lower section is evacuated. Gas or fluid pressure is applied to the upper section. Heat is applied to the housing to cure the laminate while the pressure is maintained. Tension is applied longitudinally to the laminate during the process.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: February 21, 1995
    Inventors: Richard E. Howell, Weldon M. Johnson
  • Patent number: 5389346
    Abstract: A bio-hazardous waste compactor is described which provides a negative air pressure and venting system while allowing for the filtration of the air and control of sound. The compactor contains a sealed chamber which includes a sump area in the bottom of the chamber for fluid control. Waste is weighed so that the operator knows when to remove the waste. Ultraviolet light is provided to prevent the growth of vegetative pathogenic organisms. Finally, a disposable bag to be used in connection with such a bio-hazardous waste compactor is described which has an inner porous layer, an intermediate, biocide-containing, super-absorbent polymer layer and an outer non-porous layer.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: February 14, 1995
    Inventor: Maxie L. Copeland, Jr.
  • Patent number: 5385244
    Abstract: The invention relates to a separating apparatus for separating a mixture of materials of different flowability for preparing foodstuffs. The apparatus includes a hollow drum having a perforated circumferential surface around a portion of which is wrapped an endless presser belt forming a compression zone for the material to be processed. The belt is pressed against the drum by a presser roller having a hub body around which a tubular cylindrical body forms the roller surface. The cylindrical body is supported in its middle portion by spherical supporting element mounted on the hub body. Thus when the belt is subjected to non-uniform stresses due to the uneven consistency of fed material which in turn causes the deformation and unparallel rotation of the drum and the presser roller, the cylindrical body automatically adjusts its position on said spherical supporting element to restore parallel motion.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: January 31, 1995
    Assignee: Nordischer Maschinenbau Rud. Baader GmbH & Co KG
    Inventors: Helmut Kunig, Wolfgang Wagner
  • Patent number: 5337795
    Abstract: An apparatus for introducing filler material in a fluid carrier into a measuring chamber in rapid succession is described. The apparatus includes a delivery subsystem for introducing the filler material into the fluid carrier. The delivery subsystem provides the fluid carrier and filler material to a diverter subsystem which separates the stream into two separate streams. The two separate streams are directed into a rotating concentrator subsystem that separates the fluid carrier from the filler material and compresses the filler material. The filler material is further compressed and dewatered in a taper subsystem and drain subsystem. The filler material is then dispensed from the drain subsystem into a measuring chamber where it is cut by a knife plate that includes two blades with overlapping cuts. The apparatus is capable of introducing controlled weights or volumes of filler material into a measuring chamber at high speeds.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: August 16, 1994
    Assignee: Promation Incorporated
    Inventors: Stavros Mihail, Marvin J. Berg
  • Patent number: 5297480
    Abstract: A high vacuum hot press for producing a multi-layer board. The high vacuum hot press includes a pair of heat insulating members each comprising a heat insulating material and a thin metallic cover defining an evacuated hermetic space accommodating therein the heat insulating material. The heat insulating members are arranged on respective surfaces, facing each other on a pair of bolsters. A pair of hot plates are placed on the heat insulating members, respectively. A multi-layer workpiece is disposed between the hot plates in a sealed space in a sealing unit. The multi-layer work includes wafers and an adhesive base material. The sealed space is evacuated to a high vacuum by an evacuating unit, and the multi-layer workpiece is heated by a heating unit under a high vacuum.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: March 29, 1994
    Assignee: Hitachi Techno Engineering Co., Ltd.
    Inventors: Akimi Miyashita, Hazime Sato, Mutsumasa Fujii, Isao Koromegawa, Katsunori Shibata
  • Patent number: 5285828
    Abstract: An apparatus for introducing filler material in a fluid carrier into a measuring chamber in rapid succession is described. The apparatus includes a delivery subsystem for introducing the filler material into the fluid carrier. The delivery subsystem provides the fluid carrier and filler material to a diverter subsystem which separates the stream into two separate streams. The two separate streams are directed into a rotating concentrator subsystem that separates the fluid carrier from the filler material and compresses the filler material. The filler material is further compressed and dewatered in a taper subsystem and drain subsystem. The filler material is then dispensed from the drain subsystem into a measuring chamber where it is cut by a knife plate that includes two blades with overlapping cuts. The apparatus is capable of introducing controlled weights or volumes of filler material into a measuring chamber at high speeds.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: February 15, 1994
    Assignee: Promation Incorporated
    Inventors: Stavros Mihail, Marvin I. Berg
  • Patent number: 5271319
    Abstract: Roll press or mill with two adjacent rolls (2, 4) with cooperating compression surfaces, mounted in bearing housings located between an upper and lower box girder, one roll being adjustable, with a material feed system with at least one fill chamber (6) with walls (22, 24) parallel to the roll axes and extending into the roll gap (8) and with apparatus to eliminate the air entering the roll gap with the material, provided with air admission holes in the region of the roll gap leading into an air collection chamber connected with air outlets. On each side of the fill chamber walls, parallel to the axes, chambers (16, 18) extend essentially over the breadth of the compression surfaces of the rolls and are closed at their ends. The chambers are each connected to the roll gap by a passage (28, 30) formed between the compression surfaces at the perimeter of the rolls and the lower end of the walls adjacent to the walls of the filling chamber. The chambers (16, 18) are provided with air outlets (34, 36).
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: December 21, 1993
    Assignee: Maschinenfabrik Koppern GmbH & Co. KG
    Inventor: Werner A. Plagemann
  • Patent number: 5245920
    Abstract: The calendering occurs in a press nip of a calender with application of pressure, moisture and heat. To achieve a desired surface quality, the surface of the paper or cardboard web which is to be calendered is brought in the press nip to a condition above the glass transition curve of the materials. Prior to expiration of 20 to 60 milliseconds, the surface of the paper web departing from the press nip is subjected to a transition step by virtue of a cooling device first in combination with a change in moisture content to a condition beneath the glass transition point of the material. The cooling can occur during contact of the surface to be cooled with a cooled surface or by direct contact with a cooling, preferably inert gas. After calendering there thus arises a diminished increase in the roughness of the paper web, so that the surface quality obtained in the press nip is predominantly retained. There have been illustrated suitable apparatuses for carrying out the method.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: September 21, 1993
    Assignee: Sulzer Escher Wyss GmbH
    Inventor: Harald Hess
  • Patent number: 5218902
    Abstract: A can crusher apparatus having an end wall plate and a relatively movable press plate selectively directed onto the end wall plate to crush can members therebetween. The end wall plate having longitudinally aligned recesses contained therewithin cooperative with press plate recesses to position can members to be crushed therebetween. A modification of the invention includes vacuum manifold structure to eliminate residual fluids from within can members to be crushed.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: June 15, 1993
    Inventor: Wayne J. Triola
  • Patent number: 5182121
    Abstract: A hot press including a displaceable sleeve for surrounding materials of a multi-layer substrate under a reduced pressure condition, a gas pressurizing condition and a heating condition with thermal plates. Upper and lower sealing units seal an interior of the sleeve, with a mechanism lowering and raising the sleeve. A pilot check mechanism prevents a lower bolster from raising/lowering upon the reduced pressure condition and the gas pressure condition, and a retainer maintains the lowered or raised condition of the sleeve. The multi-layer substrate is formed under the reduced pressure condition and the gas pressure condition. Accordingly, the atmosphere and moisture between the materials of the multi-layer substrate and volatile composition are removed. Additionally, a void generated during the heat and pressure process by the heating plates is eliminated from the multi-layer substrate.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: January 26, 1993
    Assignees: Hitachi, Ltd., Hitachi Techno Engineering Co., Ltd.
    Inventors: Akimi Miyashita, Mutsumasa Fujii, Minoru Kubosawa, Keiichiro Torii, Nobuaki Ooki, Kiyonori Kogawa, Masami Kawaguchi, Hideyasu Murooka, Masayuki Kyooi
  • Patent number: 5176072
    Abstract: A hand held and hand operated device for compacting and crushing an aluminum beverage can is disclosed. The device comprises an elongate handle that is grasped by the user's hand. An aluminum can is held in a gripper element at one end of the handle. The free end of the aluminum can extending from the gripper element is then pounded against a solid object in a manner similar to pounding one's clenched fist against a table top thereby crushing and compacting the aluminum can.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: January 5, 1993
    Inventor: David P. Larson
  • Patent number: 5173196
    Abstract: A device for the removal of solids from slurries by continuous compaction in a screen chamber. Pressure of liquid in the chamber causes continuous extrusion of a dewatered solid from an open ended chamber. The walls of the chamber may be constructed from longitudinal wedge bars spaced apart to provide filtering spaces between them. A high pressure pumping arrangement, including a first slurry pump and an auxiliary piston pump, is provided to maintain a high-pressure throughout the chamber to facilitate the continuous extrusion.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: December 22, 1992
    Inventor: Dennis P. Macrae
  • Patent number: 5150647
    Abstract: Apparatus for repeatedly cutting stacks of overlapping sheets has a first cutting machine from which large stacks are transferred to a loading station which is adjacent a transfer station where the stacks are loaded upon successive wheel-mounted pallets for transport into the second cutting machine. A feeding unit is provided to shift selected numbers of stacks on the pallet which is located in the second machine onto a working platform beneath the guillotine type knife and the hold-down device of the second cutting machine so that the pallet supports portions of stacks which are being severed. The stacks are oriented on the pallet at the loading station, and additional changes in orientation of the stacks can be carried out on the pallet and/or on the adjacent working platform in the second cutting machine.
    Type: Grant
    Filed: October 26, 1989
    Date of Patent: September 29, 1992
    Inventor: Wolfgang Mohr
  • Patent number: 5115736
    Abstract: A cylindrical container and cover to be firmly fitted thereon with a bayonet coupling and supports for a lever multiplier to supply to a rack rod a force "n" times stronger than the one applied to the levers, the lever multiplier being integral with a cylinder which slides inside a housing with cuts fitted in the cover center to allow a constant compression according to the heap height; force is transmitted onto the waste to compress it with a piston, which is firmly connected with a nut to the lower part of the rack rod.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: May 26, 1992
    Inventors: Alberto Rodolico, Antonino Rodolico
  • Patent number: 5107757
    Abstract: A method of and apparatus for dewatering a substance which is to be dewatered such as sludge wherein the substance to be dewatered is pressed between a pair of rollers (11, 212) or plate-shaped press members (331) each having its press surface formed from a rigid porous material (6, C, 331) having water absorption and retention properties based on the capillary action; water squeezed from the substance by pressing is permeated into the rigid porous material due to water absorption based on the capillary action or water pressure and the permeated water is retained by virtue of the water retention properties based on the capillary action, thereby dewatering the substance; and the water retained by the rigid porous material is discharged by sending pressurized air to regenerate the capillary tubes.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: April 28, 1992
    Assignees: Ebara Corporation, Ibiden Co., Ltd.
    Inventors: Takahiro Ohshita, Ryuichi Ishikawa, Tetsuhisa Hirose, Kiyoshi Asai
  • Patent number: 5083509
    Abstract: A pneumatically operated compaction device includes a piston compressible in the upward direction in a container having a sealable lid. Odor laden air surrounding the material to be compressed is utilized for a compression fluid as air is drawn from the chamber to be compressed and pressurably pumped the chamber providing the compressive force. A deodorizer automatically injects the compression chamber with a deodorizing fluid during each use, and which is powered by exposure to the changing pressure within the compactor.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: January 28, 1992
    Assignee: Myers Holding Pty. Ltd.
    Inventors: Niels K. Hansen, John D. Charters, Susanne K. Watkins
  • Patent number: 5030360
    Abstract: A receptacle for use in compacting liquid-laden asbestos-containing material to separate the liquids therefrom, the receptacle being adapted to be compacted within a compactor, wherein the receptacle is liquid permeable and capable of retaining a substantial portion of the asbestos-containing material when compacted within the compactor so that a quantity of the liquids are separated from the asbestos-containing material and expelled from the receptacle when the receptacle is compacted within the compactor. A method for separating liquids from liquid-laden asbestos-containing material comprising collecting liquid-laden asbestos-containing material in a liquid permeable receptacle capable of retaining a substantial portion of the asbestos-containing material when the receptacle is compacted, and then compacting the receptacle so that a quantity of the liquids are separated from the asbestos-containing material and expelled from the receptacle.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: July 9, 1991
    Inventors: Murray Grainger, Willy C. Dittmar
  • Patent number: 5012732
    Abstract: A trash compactor of the type comprising a hollow cabinet containing a reciprocally movable compaction plate for crushing and reducing the volume of waste materials deposited therein also includes a sanitary air filtration system for inhibiting the release or airborne particles beyond the confines of the cabinet. A removable air plenum assembly is mounted within the cabinet and has an air inlet in fluid communication with the interior of the compactor cabinet and an air discharge. Motor driven fans create a negative pressure within the cabinet and a series of in-line filters are disposed in the air flow path for capturing airborne particles greater than about 0.3 microns in size and for deodorizing the air exiting the system. The motor-driven fans operate continuously at a low speed when the doors of the trash compactor cabinet are closed and switched to a higher speed when the doors are open to thereby inhibit any outward distribution of airborne particles except through the filter.
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: May 7, 1991
    Assignee: Marcella M. Fox
    Inventor: Anthony Fox
  • Patent number: 4991500
    Abstract: A refuse compactor device has a container housing having an open top end for holding a trash bag in which the bag mouth is in registration with and folded over the open top end of the container for receiving trash to be compacted. The compactor device further includes a compactor plate received within the container housing for manual movement from the open top end of the housing toward the bottom end of the housing to compress refuse material in the trash bag. The housing has ventilation apertures in its side wall and bottom to allow air trapped between the bag and the side walls of the housing to be expelled from the container. The compactor plate also has ventilation apertures to allow air included in the refuse to be expelled from the container as the plate is moved into the trash bag and housing. The compactor plate further has an opening to receive therethrough the mouth end of the bag for convenient closing of the bag mouth.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: February 12, 1991
    Inventor: James S. Knapp
  • Patent number: 4989506
    Abstract: A charcoal filter system for a trash comparator includes a charcoal filter snap-fit to a first face of a mounting cover and a fan snap-fit to a second, opposite face of a mounting cover. The filter system is mounted in an opening formed on a front wall of a frame of the trash compactor without requiring the use of tools. A cabinet having a front wall with an opening aligned with the opening in the frame for the filter system includes a faceplate diverter snap-fit therein to direct air to the filter system from a trash receptacle mounted in openings in the frame and cabinet below the filter system.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: February 5, 1991
    Assignee: Whirlpool Corporation
    Inventor: Michael J. McCormick
  • Patent number: 4984516
    Abstract: The present invention provides an improved apparatus particularly adapted for removing fluid from overlapping sheets of material, said apparatus comprising an inverted T-bar adapted for applying stationary pressure to overlapping sheets disposed beneath said T-bar, and at least two roller assemblies, said roller assemblies each including a lower pressure roller and an upper drive roller, said drive roller being in frictional contact with both said pressure roller and a superstrate positioned above said drive roller, at least one roller assembly being positioned on each side of said T-bar such that said pressure roller and said drive roller are substantially parallel thereto, and said roller assemblies being adapted to apply a moving pressure through said pressure rollers to overlapping sheets diposed beneath said roller assemblies.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: January 15, 1991
    Inventors: Attilio Scalzitti, Clarence A. Snyder
  • Patent number: 4953457
    Abstract: A method and apparatus for treating biodegradable solid urban waste materials and selecting those non biodegradable components for recycling comprises a tunnel (1) made of steel defining an inner room or ambient of parallelepiped shape, having a rear hinge door (4) associated with adjustable counterbalance weight (5). Near the door (4) blade kneading devices (6) can be installed. In the last portion of the bottom wall of the tunnel (1) holes (7) are arranged, positioned just over a channel (3) connected to a recovering tank (22) of the percolate. At the other front end of the tunnel a moving wall (9) is mounted, capable of being moved to and fro along two rails (10) by means of hydraulic jacks (12). In the center of the wall (9) a hydraulic cylinder (31, 31a, 31b) is anchored, the piston rod (31a) which enters into the iner chamber of the tunnel (1) for compressing the waste mass. Near the upper wall (32) of the tunnel (1), there is a circulating forced air pre-chamber (13) having a grating structure.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: September 4, 1990
    Inventor: Liborio Campo
  • Patent number: 4947743
    Abstract: Apparatus for compacting and advancing a mass of particulate or fibrous material to a discharge end of a conduit combines an auger with a reciprocating annular piston. The improvement of the invention is in driving the piston by way of a flywheel equipped crankshaft which also drives a dynamically counter balancing member to reduce vibrations transmitted to the frame of the apparatus. Special hydrostatic guide sleeves are used to guide the reciprocating piston at a high speed. Further improvements include gas and liquid vents and a cooling jacket, both associated with the conduit to increase efficiency of the compacting. A density sensor controlled conical choke member at the discharge end assists in maintaining uniform density of the highly compacted plug of the material. Also, it breaks up the exiting plug to improve subsequent processing of the material.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: August 14, 1990
    Assignee: Stake Technology Limited
    Inventors: Douglas B. Brown, Henri Malys
  • Patent number: 4944220
    Abstract: A trash compactor of the type comprising a hollow cabinet containing a reciprocally movable compaction plate for crushing and reducing the volume of waste materials deposited therein also includes a sanitary air filtration system for inhibiting the release or airborne particles beyond the confines of the cabinet. A removable air plenum assembly is mounted within the cabinet and has an air inlet in fluid communication with the interior of the compactor cabinet and an air discharge. Motor driven fans create a negative pressure within the cabinet and a series of in-line filters are disposed in the air flow path for capturing airborne particles greater than about 0.3 microns in size and for deodorizing the air exiting the system. The motor-driven fans operate continuously at a low speed when the doors of the trash compactor cabinet are closed and switched to a higher speed when the doors are open to thereby inhibit any outward distribution of airborne particles except through the filter.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: July 31, 1990
    Assignee: TFC Corporation
    Inventor: Anthony Fox
  • Patent number: 4904285
    Abstract: A deaerator for particulates capable of increasing the bulk density of the particles to reduce the volume of the particulates. In the deaerator, a perforated cylindrical section (1a) of a cylindrical body (1) includes a filter (13) formed of a sintered material. A screw conveyor (4) arranged in the cylindrical body has a screw pitch (4a, 4b) which is small and which gradually reduces the region on the downstream side of the perforated cylindrical section. The filter may be formed by sintering a fine metal fibre, a metal powder or a ceramic powder.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: February 27, 1990
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Yasuo Yamada, Mamoru Nakayama, Kazuo Sagara
  • Patent number: 4884601
    Abstract: Loading and solidifying of a cosmetic material is achieved by supplying a viscous cosmetic material into a container having a slidable bottom plate, closing an upper open end of the container by a presser, compressing the cosmetic material by pressing the bottom plate of the container upwardly, and squeezing solvent from the cosmetic material through a porous absorbent element secured in either the presser or a supporting block. The container includes a frame in which the bottom plate is slidably fitted. The supporting block has a recess to hold the container and a drive for pressing the bottom plate upwardly. The supporting block and/or the presser has a hollow space maintained at sub-atmospheric pressure, and the porous absorbent element is secured in the hollow space at a position adjacent the container.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: December 5, 1989
    Assignee: Yoshida Industry Co., Ltd.
    Inventors: Yoshiharu Hatakeyama, Mitsuo Ishiguro
  • Patent number: 4836074
    Abstract: A guillotine type cutting machine for stacks of paper sheets has a table which supports the stock to be cut and a knife which can sever the stock in a vertical cutting plane. A feeding unit is provided to advance the stock along the table across the cutting plane, and a hold-down device is provided at the cutting plane to engage and press upon the stock opposite the descending knife while the stock is being severed. This hold-down device further serves to bear upon the stock during expulsion of air from the stock preparatory to the first cutting step. The air expelling unit has a roller which is lowered onto the stock adjacent the hold-down device and is then moved along the stock toward the feeding unit to expel air from pockets between the sheets. A cover is placed between the roller of the air expelling unit and the stock so that the roller need not directly engage the topmost sheet of the stock.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: June 6, 1989
    Inventor: Wolfgang Mohr
  • Patent number: 4819811
    Abstract: A separating machine of a type having a foraminous drum with a resilient belt forming a nip therebetween includes a take-up, roller upstream of the nip, having an axis skewed with respect to an axis of the take-up roller. The wobbling motion of the take-up roller distorts the resilient belt sufficiently to overcome a tendency for entering items to bridge the nip.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: April 11, 1989
    Assignee: Baader North America Corporation
    Inventors: Richard C. Ewing, Walter V. Kuczewski, Gerald A. Thurber
  • Patent number: 4809602
    Abstract: A system and method for efficiently removing and disposing of a continuous web of matrix waste formed during the high speed manufacture of adhesive backed, pressure sensitive label stock on a printing press. As it leaves the press, the web of matrix waste is formed into a generally tubular rope in a cylindrical eductor. A controlled mixture of a high volume, high air and oil is used to pass the rope of matrix waste through an eductor, into and through a flexible hose, and into a compactor where the rope is compacted into relatively compact bundles. These bundles can then be readily deposited and efficiently stored in waste receptacles.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: March 7, 1989
    Assignee: Marti Automatic, Inc.
    Inventor: Roger R. Wheeler
  • Patent number: 4802408
    Abstract: The apparatus serves to squeeze out air bubbles entrained between layers of rolled plastic films by pneumatically compacting so as to decrease the cloudiness in the appearance of a transparent plastic film roll. The apparatus comprises a base shaft, a tiltable trough to receive and discharge film rolls, and a movable drum which envelopes the film rolls on the trough as engaged with the base shaft with air-tightness. The space containing the film rolls received on the trough are enclosed air-tightly by the drum and base shaft engaged together and pressurized by introducing compressed air to squeeze out air bubbles out of the film rolls and then the drum is disengaged from the base shaft followed by tilting of the trough to discharge the film rolls.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: February 7, 1989
    Assignee: Shin-Etsu Polymer Co., Ltd.
    Inventors: Akio Hirabayashi, Katsuaki Kaneko, Yoshitake Okazaki
  • Patent number: 4748905
    Abstract: A refuse compactor is disclosed that includes a flexible bag of non-permeable material having an opening through which refuse can be placed in the bag. The bag is supported in an upright position to receive refuse through the openings in the bag. A lid is positioned to close the opening in the bag, as the pressure in the bag is reduced below atmospheric pressure periodically to crush and compact the refuse in the bag. The pressure is reduced by pumping air from the bag through a flexible hose that extends to the bottom of the bag to that any liquid collected in the bottom of the bag will be moved also.
    Type: Grant
    Filed: May 3, 1983
    Date of Patent: June 7, 1988
    Inventor: John O. Langdon
  • Patent number: 4696227
    Abstract: A press is provided for compacting small scale objects such as beverage cans. The press includes a hollow, cylindrical housing having a floor and sidewalls extending substantially perpendicularly therefrom to define a housing cavity, a compacting arrangement slidable within the cavity, the compacting arrangement being arranged to travel within the cavity in close proximity to the sidewalls of the housing, and an arrangement for drawing the compacting means downwards toward the floor of the housing. The drawing arrangment may include an arrangement for producing negative pressure within the housing cavity or an electromagnet and is capable of drawing the compacting arrangement toward the floor of the housing with sufficient force to substantially crush an object positioned between the compacting arrangement and the floor of the housing.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: September 29, 1987
    Inventor: W. Jeffrey Van Buskirk
  • Patent number: 4676079
    Abstract: During the drainage of washed laundry articles in a drainage press, there is, in addition to the discharge of water in the lower region via a lower counterpressure plate (12), the discharge of water through a plunger plate (15) of a pressure plunger (14) via a perforated stamp plate using air pressure for more effective drainage with careful treatment of the laundry articles.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: June 30, 1987
    Assignee: Herbert Kannegiesser GmbH & co.
    Inventor: Klaus Czauderna