"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 7351333 | Centrifuge A centrifuge (10) is provided with a cantilevered shaft (18) upon which the main drive rotor (26) is located. A bobbin (62) is attached to the planetary gear shaft (44), which is driven in planetary motion by the rotation of the ro... | 04/01/2008 |
| 7235177 | Integral air/oil coalescer for a centrifuge A centrifuge for separating particulate matter from circulating fluid includes a centrifuge enclosure including a housing and a base joined together so as to define a hollow interior. A rotor is positioned in the hollow interior and is supported by the base in a man... | 06/26/2007 |
| 7204637 | Automated device for homogenization and resuspension of substances, disintegration of cells, disruption of tissues and centrifugation of these media A device for mixing, homogenization, resuspension, disintegration, disruption, or centrifugation of media placed in test tubes, including: a rotor having a replaceable closure; a driver having a substantially vertical shaft; a sleeve having a spiral groove and a bus... | 04/17/2007 |
| 7144360 | Centrifugal separator with a separate strip insert mounted in the bowl A centrifuge concentrator bowl includes a plurality of fluidized recesses at axially spaced positions along the peripheral wall. Each recess is defined by two side walls which has water injection holes for fluidizing materials collecting in the recess. Some of the r... | 12/05/2006 |
| 6997859 | Centrifugal separator with fluid injection openings formed in a separate strip insert A centrifuge concentrator bowl includes a plurality of fluidized recesses at axially spaced positions along the peripheral wall. Each recess is defined by two side walls converging toward a base which has water injection holes for fluidizing materials collecting in ... | 02/14/2006 |
| 6971525 | Centrifuge with combinations of multiple features A centrifuge with combinations of multiple features is disclosed. In one aspect, a centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a sleeve. The fluid separation wall rotates around the axis of rotation.... | 12/06/2005 |
| 6962560 | Continuous centrifugal separation of slurry using balls contained in a recess of a bowl A centrifuge bowl for separating heavier particles from lighter particles and water comprises a first conical bowl wall leading to a pair of annular recesses at actually spaced positions. Each recess is generally V-shaped with an upper side wall, a lower side wall a... | 11/08/2005 |
| 6932913 | Method for vibration in a centrifuge A system and method for vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a non-rotating sleeve. The fluid separation wall rotates around the axis of rotation and ... | 08/23/2005 |
| 6805805 | System and method for receptacle wall vibration in a centrifuge A system and method for receptacle wall vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a vibratory device associated with the receptacle wall to create a vibratory force. ... | 10/19/2004 |
| 6706180 | System for vibration in a centrifuge A system and method for vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a non-rotating sleeve. The fluid separation wall rotates around the axis of rotation and ... | 03/16/2004 |
| 6468198 | Method and device for adjusting the liquid content of a solid withdrawn from a self-discharging centrifugal drum of a separator The invention is a method and apparatus for adjusting a liquid content of a liquid and solid mixture withdrawn from a self-discharging centrifugal drum of a separator. The method includes the steps of: feeding a solid and liquid mixture into the separator... | 10/22/2002 |
| 6398705 | Apparatus for separating plasma or serum from the red cells with a blood sample The method of rapidly separating plasma or serum from red blood cells comprising the steps of mounting a pair of spaced apart tubes coaxially related to one another head-to-head with a sharp-ended hollow needle disposed generally along the tube axes and b... | 06/04/2002 |
| 6168715 | Device for oil treatment of sintered parts The invention concerns a device for the oil treatment of sintered parts consisting of a drum (11, 111) which is mounted so that it can rotate about a vertical axis and which can be driven. It has a drum mantle (11', 111') and loading and unloading devices... | 01/02/2001 |
| 6132353 | Apparatus and method for separating plasma or serum from the red cells of a blood sample Red cells are separated from plasma or serum of whole blood by arranging an evacuated tube sealed by a self-sealing stopper above and preferably coaxial with a tube containing a blood sample and sealed by a self-sealing stopper. A hollow double ended need... | 10/17/2000 |
| 6074335 | Rotor with elastic diaphragm defining a liquid separating chamber of varying volume A rotor for collecting and centrifuging biological fluids in a range of volumes. The rotor includes an elastic impermeable diaphragm which defines at least a portion of a variable-volume processing chamber, where the fluid is centrifuged. The rotor includ... | 06/13/2000 |
| 6039711 | System for liquid separation A rotor for collecting and centrifuging biological fluids in a range of volumes. The rotor includes an elastic impermeable diaphragm which defines at least a portion of a variable-volume processing chamber, where the fluid is centrifuged. The rotor includ... | 03/21/2000 |
| 6019742 | Method for liquid separation A rotor for collecting and centrifuging biological fluids in a range of volumes. The rotor includes an elastic impermeable diaphragm which defines at least a portion of a variable-volume processing chamber, where the fluid is centrifuged. The rotor includ... | 02/01/2000 |
| 5916082 | Centrifugal separator with invertable bladder This separator is a centrifugal device for separating solids from contaminated effluent such as oil or water base coolants and other liquids which are used in a variety of grinding and machining applications in the glass, ceramic and metal-forming industr... | 06/29/1999 |
| 5733253 | Fluid separation system A system for separating a fluid having heavier and lighter components. The system includes a rotor having a rigid mounting member and an elastic diaphragm attached to the mounting member, the diaphragm defining a chamber. The system also includes a chuck ... | 03/31/1998 |
| 5676835 | Horizontal vibratory centrifuge A horizontal screen separator of the present invention includes a base having a housing mounted thereon which contains an horizontal screen basket for receiving product to be dried. The basket is rotatably and vibrationally driven to dry the product. The ... | 10/14/1997 |
| 5098368 | Centrifugal apparatus A centrifugal apparatus including an annular shell of flexible material with annular end rings and means for driving the shell in rotation through the end rings, an external discharge roller in engagement with the outer surface of the shell and directing ... | 03/24/1992 |
| 4804357 | Minerals separator To separate minerals, they are mde up into a slurry applied through feed pipe 46 to a vertical-axis spiralinder 32 spinning on its axis to generate 10 g centrifugal force. The spiralinder is also subjected to axial vibration at 5 to 10 Hz. A film of slurr... | 02/14/1989 |
| 4799920 | Minerals separator To separate minerals, they are made up into a slurry A applied to a hollow tapered cylinder 301 spinning on its axis to generate 10 g centrifugal force. The cylinder 301 is also subjected to axial vibration at 5 to 10 Hz. The cylinder widens at a half-ang... | 01/24/1989 |
| 4534755 | Centrifuges A centrifuge comprises a rotor which tapers conically downwardly from a maximum diameter upper region to a central bottom opening through which a liquid entry pipe projects upwardly. An outlet end of the entry pipe is shrouded by a concentric cone which i... | 08/13/1985 |
| 4457746 | Apparatus for centrifugal separation A centrifugal separator for grain and like particulate material utilizing a rotatably driven separator bowl having an outwardly inclined peripheral wall, in combination with a vibrator. Vibration and centrifugal force acting on material deposited in the r... | 07/03/1984 |
| 4395257 | Separating vessel and a separating centrifuge for use in the centrifugal separation of a liquid A separating vessel, intended to be inserted into a separating centrifuge, consists in a hollow cylinder manufactured from a soft PVC, whereby connection conduits for the feed of the liquid to be separated and for the discharge of the separated fractions ... | 07/26/1983 |
| 4346009 | Centrifugal spin-on filter or separator An oil separator cartridge includes a cylindrical spin-on housing having opposite inlet and outlet ends connected by an intermediate wall with the inlet end including a threaded aperture threadably mountable on an engine oil output tube having a smooth cy... | 08/24/1982 |
| 4345713 | Safety lock for air driven centrifuge In accordance with the present invention, there is provided an air driven centrifuge having an access door to a rotor chamber housing a rotor seat and a rotor having a plurality of turbine flutes formed in the underside thereof. Air jet means in the rotor... | 08/24/1982 |
| 4341343 | Magnetically driven centrifuge system A magnetically driven centrifuge system includes a centrifuge (2) carrying specimen tubes (10) extending radially therefrom and supporting a magnetic member (25). The centrifuge is arranged with a base (18) of the type having a rotating magnet, whereby th... | 07/27/1982 |
| 4340171 | Air driven centrifuge adjustable rotor seat A rotor seat which automatically adjusts its position with respect to the rotor in response to air flow levitation air entering between the rotor and the rotor seat. The central portion of the rotor seat which has a mating design with the design of the bo... | 07/20/1982 |
| 4322029 | Air driven centrifuge having a tachometer In accordance with the present invention, there is provided an air driven centrifuge including a rotor housing having an access door in which there is mounted the illuminating and sensing elements of a photo-optical tachometer with the elements so constru... | 03/30/1982 |
| 4315593 | Device for centrifuging liquids containing particles or cells in suspension A device for centrifuging liquid, inter alia for collecting particles or cells in suspension in the liquid. It comprises a vessel for the liquid to be centrifuged made of a material, for example PVC, such that the liquid sample is held inside it by electr... | 02/16/1982 |
| 4296882 | Centrifugal fluid processing device A centrifugal separator for fluids, e.g. blood, comprised of components or ingredients having different specific gravities, in which a container is mounted on a rotor rotatable about the vertical axis thereof and being rotatable about its horizontal axis ... | 10/27/1981 |
| 4277017 | Gear drive for seal-less counter current chromatography A flow-through coil planet centrifuge mechanism with variable rotation-revolution (r/R) speed ratios, which does not employ rotating seals. The rotation and revolution rates are continuously adjustable by using separate variable-speed drive motors. A syst... | 07/07/1981 |
| 4228950 | Horizontal flow-through coil planet centrifuge A horizontal flow-through coil planet centrifuge wherein flow-through separation columns are rotatably mounted on both sides of a rotor formed by a pair of spaced parallel rotary wings, with suitable intercoupling to avoid the need for rotary seals. Fluid... | 10/21/1980 |
| 4199459 | Continuous filtering-settling centrifuge The subject of the invention is a continuous filtering-settling centrifuge designed for separating continuously mixtures containing solid and liquid bodies. In the centrifuge several filtering or settling baskets are applied, situated beyond the main axis... | 04/22/1980 |
| 4162761 | Flow-through coil planet centrifuges with adjustable rotation/revolution of column A flow-through coil planet centrifuge has variable rotation-revolution (r/R) speed ratios. The rotation and revolution are continuously adjustable by using separate variable-speed drive motors. A first embodiment employs rotating seals, whereas a second e... | 07/31/1979 |
| 4148607 | Apparatus and analysis for agglutination reaction Analysis of and apparatus for studying simple or complex agglutination reactions, such as for blood analysis and in particular blood groupings in which the specimen is mixed with at least one reagent in a vessel of predetermined shape and this mixture is ... | 04/10/1979 |
| 4073095 | Centrifugal drum polishing machine Apparatus for grinding and polishing small parts which is of the centrifugal drum polisher type, said apparatus including a stationary support, a rotor mounted on the support, and a plurality of drum containers mounted on the rotor and in frictional engag... | 02/14/1978 |
| 4061019 | Apparatus for generating forces in a specimen Apparatus for creating vibratory forces in a specimen in which the specimen is positioned within a carrier which is rotated about a remote axis, preferably vertical, to generate centrifugal forces directed radially outward from the remote axis. The carrie... | 12/06/1977 |