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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7506766 | Apparatuses and methods for separating mixed materials An apparatus includes a separation deck free of stepwise changes in elevation between a first end and a second end, the separation deck comprising a plurality of spaces through which a constituent material may pass, a plurality of scrubbers disposed on the deck, the... | 03/24/2009 |
| 7240800 | Vibratory sand reclaiming apparatus having normal and reject modes An attrition mill for reclaiming foundry sand from deposited material having lumps of used foundry sand and included material includes a housing defining a chamber for receiving the lumps of used foundry sand and included material. A base is disposed within the hous... | 07/10/2007 |
| 7077271 | Secondary screen for concrete pump An apparatus for the removal of objects and other debris from cement that is pumped via a concrete pump includes a secondary screen that is pivotally attached at one end thereof to a concrete pump a predetermined distance above a grate that is disposed over a hopper... | 07/18/2006 |
| 6932883 | Screens for vibratory separators A method for making a screen assembly for a vibratory separator, the method including, in at least certain aspects, gluing together with glue at least two layers of fine screening material, allowing the glue to set, preheating the glued together at least two layers ... | 08/23/2005 |
| 6914402 | Method for synchronized operation of machines having axes actuated by single drives In a method for operating machines (138) with a plurality of shafts (102, 110, 111), in which the shafts (102, 110, 111) are each driven, synchronized with one another, by individual drive mechanisms (103) belonging to them, in accordance... | 07/05/2005 |
| 6763948 | Screening machine with acceleration modification A screening machine of the type used to separate or classify mixtures of solid particles of different sizes includes a fixed base and a perforate screen deck mounted for movement relative to the base during a screening operation. Leaf springs connect the tail end of... | 07/20/2004 |
| 6508364 | Sieving device A sieving device and the operation of a sieving device are proposed. The sieving device has a supporting frame which can be made to vibrate and a vibration frame which is held so as to be able to vibrate freely in relation to said supporting frame. A simp... | 01/21/2003 |
| 6062394 | Modular wood particle screen A modular screening apparatus has four parallel shafts arranged in a single plane mounted to each module. The shafts extend between the sides of the machine frame and are driven by a motor and timing belts which connect the shafts directly or indirectly t... | 05/16/2000 |
| 6036126 | Apparatus for separating particles of cohesive material according to size and process Milling/sizing apparatus which includes individual and/or nested sieves each of which may also include a quantity of beads, disks and/or other geometric or non-geometric shapes. The sieves can be rotated, vibrated or agitated in any and all combinations b... | 03/14/2000 |
| 5984107 | Vibratory drive for a screening machine A vibratory drive for use with a screening machine for draining and/or sizing of grain solids, the drive having two eccentric shafts which are driven synchronously and in counterrotation and which have different unbalanced masses 7, 8. The eccentric shaft... | 11/16/1999 |
| 5462673 | Cleaning system for vibratory screening devices A vibratory screen apparatus (10) for the separation of solids has a cleaning system to clean the screen bed (15) of adhering solids, such as matted fibrous materials. A water discharge assembly (52) includes a water dispensing tubular member (60) in whic... | 10/31/1995 |
| 5456364 | Powered screening apparatus A powered screening apparatus having a pair of spaced elongated side members, a screen surface supported between the side members, a frame member supported between the side members and beneath the screen surface, a first hammer mounted to the side members... | 10/10/1995 |
| 5271504 | Sifter and method of sifting A sifter having a resiliently mounted housing with horizontal vibrated screens. Airborne material to be sifted is introduced between the screens where it is deflected by a deflector and a breaker ring to distribute material both upwardly and downwardly to... | 12/21/1993 |
| 4504386 | Screening apparatus for wood chips An apparatus is disclosed for screening and separating wood chips or the like according to thickness. In the illustrated embodiment, the apparatus comprises two generally horizontal decks mounted one beneath the other, and with each deck having three scre... | 03/12/1985 |
| 4457840 | Apparatus for delivering a stream of green pellets An apparatus for delivering a stream of green pellets has a wide belt conveyor and a vibrating conveyor having a deck for supporting the green pellets and conveying the green pellets to the wide belt conveyor in a direction of conveyance over a discharge ... | 07/03/1984 |
