Brush Patents (Class 209/386)
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Patent number: 6336557Abstract: A sieve frame for a plansifter has a sieve covering, a bottom, and at least one sieve cleaner including a foot and a plurality of cleaning heads. The cleaning heads may have a brush-like or nubby configuration. The cleaning heads are configured to move erratically on the bottom in response to a vibrating movement of the sieve frame. At least a part of the foot closest to the cleaning heads resiliently supports the sieve cleaner such that the cleaning heads are under an elastic intial tension against the sieve covering.Type: GrantFiled: May 26, 2000Date of Patent: January 8, 2002Assignee: Buhler AGInventor: Reinhard RĂ¼ter
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Patent number: 6250477Abstract: The invention relates to a star scalper for separating supplied material, and has a number of parallel, rotatable shafts that are each equipped with a number of star bodies placed at a distance from each other, which bodies have a hub and radially protruding star fingers, in which the star bodies of each shaft extend between the star bodies of the adjacent shaft. According to the invention at least one star body is provided with a scraper, which scraper reaches to the hub of the adjacent star body.Type: GrantFiled: December 23, 1998Date of Patent: June 26, 2001Assignee: Machinefabriek Lubo B.V.Inventor: Gererdus Cornelis Petrus Maria Swanink
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Patent number: 6095339Abstract: A sieve box for a particulate sifter has a pan, a screen, and a number of screen and pan clearing devices. Each device has a first member with fingers engageable with the pan to remove particulates that accumulate on the pan and a second member with fingers adapted to engage the screen to clean the screen or particulates. The first and second members have cooperating structures that movably connect the structures to allow free combined lateral movement in the sieve box and independent relative rotational, vertical and wobble movements.Type: GrantFiled: June 1, 1999Date of Patent: August 1, 2000Assignee: Filip GmbHInventor: Hans Dieter Filip
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Patent number: 5921400Abstract: An apparatus for sieving a particulate material into selected size fractions. This apparatus includes a screen for separating the particulate material into an undersize fraction and an oversize fraction, and having an inlet end and an outlet end. The apparatus further includes a rotating/oscillating drive for rotating or oscillating the screen about an axis thereof, and a twin phase drive for driving the screen in a vertical direction and an axial direction.Type: GrantFiled: July 16, 1997Date of Patent: July 13, 1999Inventor: Melvyn John Judd
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Patent number: 5860533Abstract: An endless conveyor grader (1) suitable for use in grading tubers (4) or the like. The endless conveyor comprises an endless grid screen (21) supported by an endless drive transmission (37) at opposite sides (23, 25) of the endless grid screen (21). An endless drive transmission guide (36, 39) is provided at opposite sides (23, 25) of the endless grid screen formed and arranged so as to define at least one cascade (40) or step (40) in the endless grid screen pathway. The cascade(s) or step(s) (40) allow for tumbling, in use of the grader of tuners (4) passing over the cascade(s) (40) or step(s) so as to provide the required movement of the tubers (4) on the grid screen (21) to facilitate the grading process. The grid screen comprises parallel support bars provided with a multiplicity of `I`-shaped link members (46) bridging between the support bars (47) so as to allow the grid screen to change direction in the endless grid screen pathway.Type: GrantFiled: December 19, 1995Date of Patent: January 19, 1999Assignee: Reekie Manufacturing LimitedInventor: Peter James Wood
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Patent number: 5758778Abstract: A grain separator to separate and remove contaminants such as dust and debris from grain including an intermediate separator housing having a grain inlet port to receive grain to be scoured from an external source, a grain outlet port to feed scoured grain to an external collector, a first containments discharge port to discharge heavier contaminants removed from the grain to a first external receptacle and a second contaminants discharge port to discharge lighter contaminants removed from the grain to a second external receptacle, a mechanical separator and transport assembly operatively disposed within the intermediate separator housing to receive the grain and contaminants from the grain inlet port to separate the contaminants from the grain and to move the grain from the grain inlet port to the grain outlet port for collection in the external collector, a first containments transport assembly disposed to receive the heavier contaminants from the mechanical separator and transport assembly and to move theType: GrantFiled: December 19, 1996Date of Patent: June 2, 1998Inventor: Robert Kershner
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Patent number: 5597076Abstract: A grain separator to separate and remove contaminants such as dust and debris from grain including an intermediate separator housing having a grain inlet port to receive grain to be scoured from an external source, a grain outlet port to feed scoured grain to an external collector, a first containments discharge port to discharge heavier contaminants removed from the grain to a first external receptacle and a second contaminants discharge port to discharge lighter contaminants removed from the grain to a second external receptacle, a mechanical separator and transport assembly operatively disposed within the intermediate separator housing to receive the grain and contaminants from the grain inlet port to separate the contaminants from the grain and to move the grain from the grain inlet port to the grain outlet port for collection in the external collector, a first containments transport assembly disposed to receive the heavier contaminants from the mechanical separator and transport assembly and to move theType: GrantFiled: December 30, 1994Date of Patent: January 28, 1997Inventor: Robert Kershner
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Patent number: 4983290Abstract: A slit-tube filter has a hollow cylindrical filter element of bent wires which are attached to vertical retaining supports and form horizontal slits between themselves through which the liquid to be filtered passes, the cylindrical inner wall of the filter elements forming the filter surface adjacent the flow of liquid. The liquid flows from the inside of the filter element to the outside. A stripping device passes over the filter surface adjacent the flow of liquid, and bears against the inner wall of the cylinder. The stripping device is a coaxial helix of brushes which rotates in relation to the filter element in a direction such that the suspended and settleable solids disposed on and in front of the filter surface are conveyed downwards.Type: GrantFiled: June 30, 1989Date of Patent: January 8, 1991Assignee: Hein, Lehmann AGInventor: Gunter Schumann
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Patent number: 4702826Abstract: Disclosed is a device for sequentially cleaning the screens of a particle size analyzer of the indexing drum type, as each screen moves out of the screening position. The cleaning member is preferably removed from the drum during each screening step. The particles dislodged from the screen being cleaned are returned to the sample being analyzed in a manner which maintains the accuracy of the analysis. In an alternative embodiment, each screen is cleaned during a screening step, at an indexed position other than the screening position.Type: GrantFiled: February 3, 1986Date of Patent: October 27, 1987Assignee: Rotex, Inc.Inventor: Glenn J. Pogue