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| Number | Title | Issue Date |
| 7306104 | Method and apparatus for separating fine particulate matter from other materials A method and apparatus for separating fine particulate matter from debris and bulk material is presented which includes a frame, a screen connected to the frame that is adjustable in height relative to the frame at one of its ends, a removable trough positioned near... | 12/11/2007 |
| RE38765 | Combination screen/conveyor device removably attachable to a vehicle In combination a screen, a shaker, a conveyor and carbody device which is attachable to a vehicle of choice, such as an hydraulic excavator, a backhoe, etc., and when installed thereon allows the vehicle to perform as a padding machine. ... | 08/02/2005 |
| 6357596 | Sperm strainer system The invention in the simplest form is a passive method and apparatus for filtering motile sperm from a sperm sample. The invention passively filters the motile sperm using a membrane assembly disposed in a container. In operation, a sperm sample is placed... | 03/19/2002 |
| 6129214 | Sperm strainer system The invention in the simplest form is a passive method and apparatus for filtering motile sperm from a sperm sample. The invention passively filters the motile sperm using a nucleopore membrane that is contained within a membrane assembly, wherein the mem... | 10/10/2000 |
| 5791493 | Polysilicon particle classifying apparatus Apparatus for classifying high purity polysilicon particles includes a receptacle for holding the particles and a rotary member for feeding the particles from the receptacle. The rotary member defines at least a portion of a front wall of the receptacle a... | 08/11/1998 |
| 5493796 | Pipeline padding apparatus A backhoe operated bucket is provided with an opening containing a screen frame opposite its scraper blade equipped loading opening for separating coarse material contained by soil excavated from a pipeline ditch and depositing fine padding soil on a pipe... | 02/27/1996 |
| 5236136 | System and method for recycling used oil filters A system and method for recycling used oil filters by shredding the filters to facilitate separation of the metal and nonmetal filter components and to release free oil trapped inside the filters, separating the metal and nonmetal filter components using ... | 08/17/1993 |
| 4472269 | Sluice box classifier for gold mining dredge A sluice box classifier for a sluice box of a gold mining dredge includes a trough and a rim secured to an underside of the trough. The rim anchors the trough to a standard size container. The trough is formed of four walls and a bottom, and is at least a... | 09/18/1984 |
| 4098685 | Apparatus and method for separating lead battery materials Lead battery components such as metallic grids and paste are fed into a tumbling drum which has inlet and outlet ends and an intermediate region in which there are screens for the fine particles of paste to discharge to the exterior of the drum. Water is ... | 07/04/1978 |
