Thomas Edison obtained a patent for an electrographic vote recorder.
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| Number | Title | Issue Date |
| 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 |
| 7107798 | Drive mechanism for an automatic washer A drive mechanism for a vertical axis automatic washer. The washer has a rotatable wash basket, a rotatable agitator concentrically mounted in the wash basket and a drive motor. The drive mechanism includes a first drive shaft driven by the motor at a first rotation... | 09/19/2006 |
| 7074586 | Quantitative assay for low abundance molecules A method for quantitatively assaying one or more target molecules in a sample uses a nucleic acid aptamer that is specific for each target molecule. A quantitative replicative procedure is used to determine a quantity of aptamer specific for each molecule. ... | 07/11/2006 |
| 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 |
| 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 |
| 6139775 | Compositions and methods for treating hydrocarbon materials A biodegradable, non-toxic firefighting concentrate composition. The preferred compositions include 4 to 40 parts of a C16 -C18 tertiary amine having 2-10 ethoxy or other solubilizing groups per mol, 1 to 15 parts of a carboxylic aci... | 10/31/2000 |
| 6029569 | Apparatus for food contaminant removal An improved method and apparatus for the removal of solid contaminants which utilizes at least one rotating mesh screen container designed to pass the food therethrough while trapping the solid contaminant. The rotation of the cylindrically-shaped mesh sc... | 02/29/2000 |
| 6017454 | Centrifugal filtration onto membrane adsorbers A filtration unit for the separation of substances from liquids utilizes a rotatable cylindrical module with a permeable wall disposed within a housing. A filter element which has at least one band of microporous membrane adsorber having a specific adsorp... | 01/25/2000 |
| 5914145 | Method for removing contaminants from food A method for the removal of solid contaminants which utilizes two rotating mesh screen containers designed to pass the food therethrough while trapping the solid contaminant. The rotation of the first cylindrically-shaped mesh screen causes the food to pa... | 06/22/1999 |
| 5653879 | Liquid and solid separator A flattened end portion of flighting is added to the conventional auger flighting at the output end of an auger separator. A plug zone is created in the inner perforated tube between the flattened flighting and pressure end gates, which normally close the... | 08/05/1997 |
| 5507947 | Centrifugal apparatus for separating particulate material In an apparatus for separating particulate material from a particle-containing liquid, at least the section of the cylindrical housing (10) provided with perforations (5) is designed as a driveable drum sieve (2') so that the solid materials are optimally... | 04/16/1996 |
| 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 |
| 5006260 | Coalescer device and method using movable filling The invention relates to a process and an apparatus for the separation of a dispersed phase in emulsion or in suspension in a continuous phase of a different density. The process comprises causing the emulsion to circulate in a coalescing enclosure (1) co... | 04/09/1991 |
| 4981585 | Centrifuge system and fluid container therefor A disk shaped cassette for centrifugal fluid separation, particularly blood separation, and a drive system for high speed rotation of the cassette. The cassette is driven at speeds which permit very rapid separation of the blood in times on the order of s... | 01/01/1991 |
| 4867878 | Liquid bearing for rotary apparatus A liquid bearing for use in rotary devices processing biological fluids is disclosed. The device has a stationary housing and a rotating cartridge. One end of the cartridge is rotatably connected to the housing. The other end is not directly connected to ... | 09/19/1989 |
| 4832853 | Apparatus for improving characteristics of sand In apparatus for removing water and impurity components from sand, there are provided a rotary member having an opening at one end for charging and discharging sand and a filter for passing water. The rotary member is supported by a support and driven by ... | 05/23/1989 |
| 4717478 | Apparatus for improving characteristics of sand In apparatus for removing water and impurity components from sand, there are provided a rotary member having an opening at one end for charging and discharging sand and a filter for passing water. The rotary member is supported by a support and driven by ... | 01/05/1988 |
| 4541929 | Device for drying of solid materials A sieve drum (2) for drying solid materials such as, for example, brown coal is rotatably supported for being rotated around its axis (8). A conveying screw (3) is arranged within the interior of the sieve drum and can be rotated independent from the rota... | 09/17/1985 |
| 4318814 | Continuous centrifugal machine An improved continuous centrifugal machine includes a rigid base structure, a bearing housing, a normally vertical basket shaft journalled for rotation on bearings in the bearing housing, an upwardly open frusto-conical centrifugal basket secured to the u... | 03/09/1982 |
| 4283286 | Centrifuge with product accelerator A centrifuge, preferably of the type having an upright axis, e.g. a wobble centrifuge, is provided with a distributor for the product to be centrifuged. The distributor, which is rotatable with the shaft, e.g. by being connected to the drum or basket or t... | 08/11/1981 |
| 4246108 | Microstrainer apparatus and method A centrifugal microstrainer includes a closed cylindrical vessel with a cylindrical screen within, both rotating about a hollow shaft forming a common central axis. Liquid-solid admixture introduced through the shaft is flowed radially outward subjected t... | 01/20/1981 |
| 4212741 | Blood processing apparatus The disclosure sets forth blood processing apparatus of the general type which employs a cylindrical rotor with a semi-permeable membrane at its outer surface, rotatable within a surrounding stationary casing or housing, blood being supplied and discharge... | 07/15/1980 |
| 4184964 | Centrifuge A wobble centrifuge has a housing in which a tube shaft is rotatable about a first axis, this tube shaft having a lower tube part centered on the first axis and an upper tube part centered on a second axis that crosses the first axis at an intersection. A... | 01/22/1980 |
| 4141837 | Oscillating centrifuge for the dehydration of fine grained material A centrifuge for the dewatering of a fine grained material having a downwardly flaring frusto conically shaped porous sieve cage rotatable about its axis and axially oscillatible with a preacceleration frusto conically shaped cone within the sieve cage wi... | 02/27/1979 |
| 4104169 | Filtering apparatus with rotatable filter elements and seal A filter has a housing defining a closed chamber around a hollow shaft which is rotatable in the housing and which carries a plurality of filter elements so that fluid can be pumped through the filter elements into the hollow interior of the shaft. The sh... | 08/01/1978 |