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| Number | Title | Issue Date |
| 7413086 | Inline sifter An inline sifter including a gas-powder mixture receiving module which receives a mixture of a gas and powdery material from an inlet, a sieving module which communicates with a supply chamber of the gas-powder mixture receiving module, a rotating mechanism which is... | 08/19/2008 |
| 7410064 | Circular-cylinder sieve In a cylindrical sieve, a first frame 7 is provided with a first ring plate 7a arranged in a radial direction and a ring plate 7b extended inward in an axial direction X of the sieve from an inner end of the first ring plate 7 | 08/12/2008 |
| 7097044 | Dry separation of contaminants from polyester materials A method for separating polyester materials from contaminants is disclosed suitable for, for example, a polyester recycling system. The method is a dry separation method and includes rapidly spinning a mixture of polyester and contaminants within a cleaning chamber.... | 08/29/2006 |
| 7093718 | Inline sifter A booster 8 extending in an internal area 53 of a sieve 7 is attached to the outer circumferential face of a rotating shaft 6. The booster 8 has four blades 82, which are radially extended from the outer circumferential face... | 08/22/2006 |
| 6629653 | Process and device for the separation of viscoplastic materials such as plastics from materials such as paper which can be defibrated by mechanical action The invention relates to a process for separating tenaciously elastic materials such as plastics and rubber from materials tearing and/or defiberizing under high mechanical stress, particularly paper, and to a device for performing said process. The proce... | 10/07/2003 |
| 6260709 | Membrane filter element for chemical-mechanical polishing slurries A filter media for physically separating particles of an abrasive media having a given mean average particle size from a chemical-mechanical polishing (CMP) slurry. The abrasive media has a particle size distribution including particles larger than the me... | 07/17/2001 |
| 6193073 | Paper stock screening apparatus and method Pressure screening apparatus for screening a suspension of paper fiber stock employs a rotor in which a single impulse or foil member is carried or positioned to move along a discrete portion of the screen surface. This arrangement improves efficiency of ... | 02/27/2001 |
| 6149015 | Screen apparatus for papermaking material A screen apparatus is formed of a tank for receiving a papermaking material, a cylindrical first screen for partitioning the tank into a first chamber and a second chamber, an annular second screen disposed in the first chamber, and a rotating member disp... | 11/21/2000 |
| 6029378 | Apparatus for padding underground conduits The present invention provides an apparatus for constructing bottom pads, or bench pads, as well as for padding a pipeline during construction. To pad the bottom of a pipeline, a padder is removably attached to one end of a conventional excavator or other... | 02/29/2000 |
| 5967334 | In-situ self-cleaning feed system for separation equipment A process and apparatus that allows a portion of a feed system to be cleaned quickly by sequentially closing a feed passageway which leads to a sieve section; rotation of the sieve section to an upside-down position to allow blocking clumps of particles t... | 10/19/1999 |
| 5967335 | Screening device for screening a suspension Arrangement for separating off undesired particles from a suspension stream. The arrangement has a closed housing with an inlet for the suspension from which particles are to be separated off, an outlet for the treated suspension and an outlet for undesir... | 10/19/1999 |
| 5799798 | Screen cylinder for screening high consistency pulp A screen cylinder is adapted to be used with a stirring unit for screening high consistency pulp to be received in the screen cylinder. The screen cylinder includes a plurality of parallel supporting plates, each of which is formed with a plurality of tra... | 09/01/1998 |
| 5601192 | Pressure sorter for fiber suspensions Pressure sorter for the preparation of fiber suspensions obtained from waste paper, with a screen surrounding a rotor, a supply chamber between rotor circumference and screen as well an accepts chamber outside the screen and with profiled elements provide... | 02/11/1997 |
| 5593042 | Quality-control sieve and method of using it The novel invention proposes a final screen which is very reliable in operation and which is suitable more particularly also for building into a pneumatic conveying line. In a first section the material is distributed uniformly over the entire peripheral ... | 01/14/1997 |
| 5570790 | Strainer having a main screen and a fore screen A strainer comprises a housing. A main screen is disposed within the housing. The fore screen is disposed within the housing and includes a first section and a second section. A main beater is connected to the second section of the fore screen. The fore s... | 11/05/1996 |
| 5566833 | Pressure sorter for fiber suspensions as well as a process for the preparation of fiber suspensions A pressure sorter for fiber suspensions, and a process for the preparation of fiber suspensions, are disclosed wherein a rotor is disposed concentrically within a cylindrical screen that has spaced circumferential rows of narrow through slots through whic... | 10/22/1996 |
| 5509539 | Method for preparing injection molding compound pellets to remove molding compound dust and broken pellets An injection molding compound pellet cleaner 10 removes broken pellets and eliminates excessive dust from molding compound pellets for preparation of the pellets for processing in an automatic molding machine. The pellet cleaner includes a vacuum chamber ... | 04/23/1996 |
| 5509536 | Method and apparatus for the sorting of fiber suspensions In a sorting method for fiber suspensions, a dividing wall (3, 3') is used comprising openings via which the compenent particles in the suspension S to be sorted are classified according to their size. The beneficial transporting away of the rejected comp... | 04/23/1996 |
| 5492225 | Sorter having a housing with conical shaped end wall A sorter with a symmetric screen which is arranged concentrically in an essentially symmetric housing, and in the interior of which there is contained a concentric rotor drum that features on its periphery sorting elements sweeping across the screen, circ... | 02/20/1996 |
| 5485924 | Centrifugal sifter and elements thereof A centrifugal sifter having a rotatable shaft with an auger and paddles located thereon. An inlet manifold presents material to be sifted to the auger. A cylindrical screen surrounds the paddles and is in turn confined within an outlet manifold where mate... | 01/23/1996 |
| 5476178 | Rotor for pressurized hydrodynamic purification of paper pulp and equipment fitted with this rotor The invention concerns a rotor for the pressurized, hydrodynamic purification of paper pulp from old papers in known purifying equipment comprising a cylindrical screen, characterized in that it comprises a generally cylindrical case extending along a lon... | 12/19/1995 |
| 5458246 | Horizontal cylindrical sifter with adjustable agitator arms A horizontal cylindrical sifter is provided, including a housing with an inlet for feed material of mixed size at a first end, an outlet for coarse material at a second end, a cylindrical screen for sifting the mixed feed material to separate the coarse m... | 10/17/1995 |
| 5435444 | Composite type screen A composite type screen includes a machine main body divided into a first structural part in which a first processing chamber is contained and a second structural part in which a second processing chamber is contained and a screen plate is interposed betw... | 07/25/1995 |
| 5078865 | Appliance for the removal of rakings and/or screenings out of liquid flowing in a launder The invention relates to a device for the removal of particles and/or screenings from a liquid running in a laundry. A screen with openings in the shape of a cylinder jacket reaches into the laundry and is tilted upwards. The screen is partly immersed in ... | 01/07/1992 |
| 5051167 | Apparatus for screening a suspension of fibrous cellulose material An apparatus for screening a suspension of fibrous cellulose material containing undigested wood comprising a shaft rotating in a housing and an elongate screen disposed in a screening chamber. This screen comprises a stationary screening member and a rot... | 09/24/1991 |
| 4968417 | Apparatus for screening a suspension of fibrous cellulose pulp An apparatus for screening a suspension of fibrous cellulose pulp comprising a housing and a rotor shaft, the housing having an inlet for the suspension and containing first and second screening sections, each comprising a rotor member mounted on the roto... | 11/06/1990 |
| 4961844 | Apparatus for separating a suspension of fibrous cellulose pulp A suspension of fibrous cellulose pulp is separated into at least two portions in an apparatus comprising a closed housing having inlet and outlets, and a rotor means provided with projections, said rotor means comprising a first rotor part surrounded by ... | 10/09/1990 |
| 4913806 | Apparatus for screening a suspension of fibrous cellulose pulp An apparatus for screening a suspension of fibrous cellulose pulp is described which comprises a housing and a rotor shaft, the housing having an inject section, first and second screening sections, each of which comprising rotor members mounted on the ro... | 04/03/1990 |
| 4904377 | Sifting apparatus An improvement for centrifugal sifter units having an elongated sifting chamber having a central axis, a coaxial screen surface therein and a series of paddles mounted on a shaft driven for rotation about the central axis for urging siftable material thro... | 02/27/1990 |
| 4855038 | High consistency pressure screen and method of separating accepts and rejects A high consistency pressure screen comprises a screen including a profiled inner surface and a rotor including a profiled outer surface rotating adjacent and spaced from the profiled screen to produce a positive-negative pulsation cycle of approximatey 50... | 08/08/1989 |
| 4839035 | Cylindrical screen separator with spirally arranged clearing and conveying blades A separator for separating different sized components from a material and which is particularly useful for separating rocks, branches and other debris from soil to form topsoil. The separator has a cylindrical screen formed from a plurality of circular ba... | 06/13/1989 |
| 4717471 | Apparatus for screening paper fiber stock In screening apparatus for paper making fiber incorporating a cylindrical screen member provided with cylindrical screening perforations, each of the perforations is characterized by a concentric frustoconical inlet end portion having a maximum diameter a... | 01/05/1988 |
| 4650125 | Method for sorting fiber stock, especially for manufacturing paper, and sorting apparatus for the performance of such method The sorting apparatus contains a rotor equipped with blades or vanes which move along a screen or sieve located beneath the rotor. The screen forms a partial surface of a body of revolution, such as a partial surface or section of a cylinder. The fiber st... | 03/17/1987 |
| 4638954 | Apparatus for the separation of mixtures of materials of different consistencies such as meat and bone Apparatus for the separation of mixtures of materials of different consistencies, such as meat and bone, or sewage containing solid material, comprises a positive displacement pump feeding the pressurized mixture to a separator which can be separate from ... | 01/27/1987 |
| 4575899 | Apparatus for severing the meat from bones A device for severing the meat adhering to bones from these bones has a press cavity provided with a press piston and a counter-piston, the mass of meat and bones introduced into the press cavity being pressed between said both pistons. Passage openings f... | 03/18/1986 |
| 4447320 | Device for cleaning and recovering paper pulp A device for cleaning and recovering paper pulp includes a tank divided into inner and outer chambers by a fixed cylindrical sieve. The inner chamber also contains a rotating drum with blades that draw acceptable pulp from the outer chamber through the si... | 05/08/1984 |
| 4409186 | Catalyst particle sizing apparatus Apparatus is provided to size finely divided catalyst particles so that all of the catalyst particles passing through the apparatus are sized so as to have a maximum particle diameter. The apparatus includes: (a) A sealed cylindrical housing having an arcuate ... | 10/11/1983 |
| 4294692 | Drum-type screening machine and method of operation A drum type screening machine has a centrifuging rotor within it. A perforated retaining element is carried by the shaft between a feed inlet and an entry region of the drum. Use of the retaining element prolongs the screen life so much that tension adjus... | 10/13/1981 |
| 4287055 | Method of sorting fibre suspensions as well as a pressure sorter for performing the method Pressure sorting method and apparatus in which the velocity of the rejected suspension component along the screen surface in a substantially direct path to a rejected suspension outlet has a vertical velocity component which is a multiple of the velocity ... | 09/01/1981 |
| 4264438 | Screen drum and a method for its manufacture A screen drum and a method for its manufacture is disclosed wherein the screen drum comprises at least two cylindrical screen members spaced apart, between which a stiffening ring is disposed. The stiffening ring has two cylindrical surfaces which guide t... | 04/28/1981 |
