Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7396460 | Filter element A filter element (8), especially for use in backwash filtering systems, includes a filtering element through which a contaminated fluid flows in at least one direction (24). An intercepting device (62) has at least one rod-shaped permanent magne... | 07/08/2008 |
| 7261683 | Conical piston solids discharge and pumping centrifugal separator A centrifugal separator includes a cylindrical bowl having a conical lower end with an opening through which feed liquid is injected during a feed mode of operation. The feed liquid is separated into centrate and solids, which accumulate along the inner surface of t... | 08/28/2007 |
| 7168571 | Inverting-filter centrifuge The invention relates to an inverting filter centrifuge comprising a filter drum (16) that is rotatably mounted in a machine frame and projects in a cantilevered manner into a housing that is connected to the machine frame, said drum radially surrounding a ce... | 01/30/2007 |
| 7052451 | Conical piston solids discharge centrifugal separator A centrifugal separator includes a cylindrical bowl having a conical lower end with an opening through which feed liquid is injected during a feed mode of operation. The feed liquid is separated into centrate and solids, which accumulate along the inner surface of t... | 05/30/2006 |
| 7032759 | Pusher centrifuge The invention relates to a pusher centrifuge (1) for the separation of a mixture (2) into a solid cake (3) and into a liquid phase (4). The pusher centrifuge (1) in accordance with the invention includes an outer screen drum (6 | 04/25/2006 |
| 7034128 | Method for recovering proteins from the interstitial fluid of plant tissues A method for extracting proteins from the intercellular space of plants is provided. The method is applicable to the large scale isolation of many active proteins of interest synthesized by plant cells. The method may be used commercially to recover recombinantly pr... | 04/25/2006 |
| 7025211 | Double pusher centrifuge The invention relates to a double pusher centrifuge including a screen drum (3) rotatable about an axis of rotation (2) for separating a mixture (4) into a solid material cake (5) and a liquid phase (6), a mixture distributor (7... | 04/11/2006 |
| 7017756 | Multi-stage pusher centrifuge The invention relates to a multi-stage pusher centrifuge (1) for the separation of a mixture (2) into a solid cake (3) and into a liquid phase (4). The multi-stage pusher centrifuge (1) includes an outer screen drum (6) rota... | 03/28/2006 |
| 6986734 | Centrifugal separator with scraper or piston for discharging solids A centrifugal separator provides for the discharge of solids by either an axial-motion scraper or a piston/extrusion assembly. The axial-motion scraper is used with hard-packed or friable solids, and includes an integral feed liquid accelerator and feed holes. The p... | 01/17/2006 |
| 6776752 | Automatic tube bowl centrifuge for centrifugal separation of liquids and solids with solids discharge using a scraper or piston A centrifugal separator provides for discharge of solids by either an axial-motion scraper or a piston/extrusion assembly. The axial-motion scraper (80) is used with hard-packed or friable solids, and includes and integral feed liquid accelerator and feed hol... | 08/17/2004 |
| 6632166 | Centrifuge having axially movable scraping assembly for automatic removal of solids A centrifugal separator includes a rotatable separator bowl, a hollow shaft spindle in the bowl along the rotational axis of the bowl, and a variable-drive motor for selectively rotating the bowl at a high separating speed and at a lower scraping speed. A... | 10/14/2003 |
| 6592760 | Spring air lance hose, and vertical basket centrifuge including such hose, and methods of making and using A vertical basket centrifuge utilizing a plow supplemented with a spring air lance hose having a ball and socket joint for affixing the hose to a nozzle, and passages to allow the gas to by pass the ball and socket joint.... | 07/15/2003 |
| 5958235 | Continuous-feed filtering- or screening-type centrifuge with reslurrying and dewatering In a continuous-feed filtering- or screening-type centrifuge, first dewatering a particulate material, then reslurrying the particulate material, and subsequently again dewatering the particulate material in a sequence along a cake flow path extending thr... | 09/28/1999 |
| 5942170 | Process of and apparatus for preparing thermosetting polymer pellets A continuous method of and system for fabricating thermoset polymer pellets wherein thermosetting polymeric resin material flows axially in a temperature controlled, mixer-extruder barrel while maintaining the material between a melt temperature and a hig... | 08/24/1999 |
| 5935438 | Pusher centrifuge A pusher centrifuge has a housing and a centrifuge drum arranged in the housing. A pusher bottom is arranged in the centrifuge drum. A filler pipe is connected to the housing and extends concentrically into the centrifuge drum. Material to be centrifuged ... | 08/10/1999 |
| 5865993 | Filter centrifuge with a drying device for the moist solids collected in the centrifuge drum A filter centrifuge includes a centrifuge drum having a solids removal opening for solids collected in the centrifuge drum. A solids drying housing into which the solids removal opening opens is provided. The solids drying housing has a sieve bottom, a ga... | 02/02/1999 |
| 5618423 | On-the-fly long-running rotary filtration screen device The present invention concerns an on-the-fly long-running rotary filtration screen device, wherein a split-flow bar and a filtration sleeve are screwed together to form a filtration bar, a filtration screen is inserted onto the cylinder on the filtration ... | 04/08/1997 |
| 5567321 | Centrifugal filter The centrifugal filter comprises a rotatable travelling basket (5) disposed within a collector chamber (1). A machine body (2) which can be supported on a support (3) carries a bearing arrangement (8) for the hub (14) of the travelling basket (5). In the ... | 10/22/1996 |
| 5356366 | Process for the operation of a pusher centrifuge A pusher centrifuge, in which the pusher plate is moved cyclicly relative to a perforated drum in the axial direction in an advanced and a retracted position in a forward or a reverse movement, can be operated with a higher throughput if the drum is suppl... | 10/18/1994 |
| 5305685 | Grounds removal centrifuge A disposal device for disposing of spent beverage brewing substances for use with a beverage brewing apparatus. The beverage brewing apparatus is the type which uses a beverage brewing substance which is disposed in a brewing chamber and infused with a li... | 04/26/1994 |
| 5205933 | Pusher centrifuge A pusher centrifuge which includes a housing and at least two screening drums for dewatering infed material. The screening drums and a pusher ring are mounted for rotary movement about a longitudinal axis. The pusher ring is further mounted for oscillator... | 04/27/1993 |
| 5149424 | Centrifuge apparatus for residual liquid waste removal from recyclable container material The present invention is a centrifuge device which separates chips or shreds of containers from whatever liquid residue remains within the containers. The device is suitable for many applications, including the separation of the recyclable plastic of a mo... | 09/22/1992 |
| 5143555 | Travelling doctor blade A method and apparatus for doctoring (cutting) the solids off a precoat filter. A stationary doctor blade continuously doctors mud (from a mud bath) from the surface of a rotating porous surface vacuum drum. A traveling doctor blade, located upstream of t... | 09/01/1992 |
| 5021158 | Process and apparatus for the separation of mixtures of substances Process and apparatus for the separation of mixtures of substances by means of centrifugal forces, particularly for the filtration and/or sedimentation of solids from suspensions, wherein the material mixture is rotated in a cake-forming chamber until a c... | 06/04/1991 |
| 4889627 | Pusher centrifuge In a pusher centrifuge comprising substantially cylindrical sieve or straining drums which simultaneously rotate but also oscillate relative to one another, and a pusher bottom or base, the pusher edge of at least one sieve or straining drum is provided w... | 12/26/1989 |
| 4749486 | Automatic lateral filtration-type centrifuge An automatic centrifugal machine with lateral filtration used for realizing a highly effective separation of hardly separable fine sticky solid particles. It is equipped with a rotatable sediment drum having a radial filter plate, infrared fluid level mon... | 06/07/1988 |
| 4640770 | Apparatus for extracting water from solid fines or the like A batch-type centrifugal system utilizes a gimbal-like suspension at the end of a rotating shaft distal an attached bowl at the other end of the shaft. The shaft rotates within an elongated bearing which is supported proximal the bowl by a support which i... | 02/03/1987 |
| 4505824 | Method and apparatus for purifying liquid using an electromagnetic filter A method of and apparatus for purifying a liquid which contains magnetic solid particles therein, includes a system for feeding the liquid to a container of an electromagnetic filter including a matrix disposed inside the container and a coil disposed so ... | 03/19/1985 |
| 4434052 | Centrifugal separator A centrifugal separator, especially a pusher centrifuge is disclosed, wherein at least one rotatable sieve or filter drum is mounted within a housing. Within the sieve or filter drum there is arranged a to-and-fro displaceable pusher or thrust element, fo... | 02/28/1984 |
| 4381236 | High pressure rotary centrifugal separator having apparatus for automatically cyclically reciprocating a corotating separator basket scraper A fluid pressure actuated system for axially reciprocating an element while the element is being driven in rotation. A piston is mounted within a piston chamber in a rotary shaft. The rod side of the piston head is continuously exposed to fluid under pres... | 04/26/1983 |
| 4320007 | Pusher-type centrifuge filters A centrifuge filter has a sieve drum normally rotated about its axis and normally fed internally with a filtrand that is separated when the drum rotates into solids lying on the inner surface of the drum and a filtrate that passes radially outwardly throu... | 03/16/1982 |
| 4226724 | Two-stage pusher centrifuge A two-stage pusher centrifuge with a pusher bottom and an axially displaceable cylindrical inner drum which serves as pusher element for a subsequent outer drum which is cylindrical within the pusher region. That cylindrical section of the outer drum whic... | 10/07/1980 |
| 4217226 | Pusher centrifuge Pusher centrifuge having a pusher plate and a guiding wall for the mixture to be fed onto the centrifuge drum, with a free flow space between the pusher plate and the guiding wall; the improvement that the surfaces of the pusher plate and guiding wall fac... | 08/12/1980 |
| 4209405 | Centrifuge Centrifuge having a centrifuge housing containing a gaseous medium being separated from the environment of the centrifuge, and an outlet pipe for the flow of solids; the improvement that this outlet pipe for the stream of solids comprises a diffusor and t... | 06/24/1980 |
| 4073731 | Push-type centrifuge Push-type centrifuge, with a rotor which comprises a centrifuging drum and a push plate and a push motor comprising a push piston and a push cylinder, which motor is arranged coaxially of the rotor, while the push cylinder is connected fast to the station... | 02/14/1978 |
| 3972514 | Centrifuge for the refining of nonferrous metals The centrifuge consists of a hollow housing disposed wherein is a hollow bowl containing a hollow pusher whose side wall is formed by the side wall of the bowl. The hollow pusher is capable of reciprocating inside the bowl, being attached to the piston ro... | 08/03/1976 |
| 3957649 | Washer or hydro-extractors In accordance with the present invention there is provided a washer or fluid extractor comprising a cylindrical basket adapted to be rotated about its longitudinal axis for fluid extracting operations on material placed therein, at least one rope, or othe... | 05/18/1976 |
| 3945921 | Rotary centrifugal machine A rotary centrifugal machine, for example a centrifugal extractor for removing fluids from wet laundry loads, includes a basket rotatable within a casing. A load conveyor deposits material into the basket while the basket rotates at a relatively low speed... | 03/23/1976 |
