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Class Information
Number: 406/128
Name: Conveyors: fluid current > Intake to fluid current conveyor > Load receptacle type > With valve between receptacle and fluid conveyor > Reciprocating, rotating, or swinging
Description: Subject matter wherein the means to control the flow of the load comprises a member having a surface mounted for movement across or along the flow path in either a back and forth manner or in a revolving movement about an axis.










Sub-classes under this class:

Class Number Class Name Patents
406/130 Gate type 38
406/129 Rotatable hollow cylinder type 18
406/132 Vertically movable 25


Patents under this class:
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Patent Number Title Of Patent Date Issued
8711542 Systems and methods for dissipating an electric charge while insulating a structure Apr. 29, 2014
8252117 Automatic feed system and related process for introducing source material to a thin film vapor deposition system Aug. 28, 2012
8104997 Bulk resin unloading apparatus and method Jan. 31, 2012
7665932 Method and device for the transportation of pulverulent filling material through a line Feb. 23, 2010
7438507 Method and device for the transportation of pulverulent filling material through a line Oct. 21, 2008
7156372 Non-contact valve for particulate material Jan. 2, 2007
7144204 Pneumatic conveyor device and method Dec. 5, 2006
7137759 System and method for handling bulk materials Nov. 21, 2006
6848867 Device for passing heavily flowing bulk material into a delivery pipe Feb. 1, 2005
6742679 Drop plate feeder Jun. 1, 2004
6503026 Static free method for blowing loose fill insulation Jan. 7, 2003
6416261 Rotary plate feeder Jul. 9, 2002
6283680 Device for pneumatic transport of material such as concrete Sep. 4, 2001
6079911 Method and device for the contamination-free metering and conveying of solid powders which are to be dispersed or dissolved Jun. 27, 2000
5803673 Portable pneumatic precision metering device Sep. 8, 1998
5752788 System and method of pumping a constant volume of powder May. 19, 1998
5407305 Continuous dense phase conveying method utilizing high pressure gas at predetermined gas pressures within a conveying pipe Apr. 18, 1995
5282573 Spray coating system and method Feb. 1, 1994
5213450 Appliance for the dispensing of bulk material May. 25, 1993
5188264 Railroad hopper car discharge gate valve Feb. 23, 1993
5160222 Pneumatic conveying system Nov. 3, 1992
5071289 Particulate delivery system Dec. 10, 1991
5044837 Method and apparatus for continuously feeding particulate solid material into a pressurized system without pressure loss Sep. 3, 1991
5009551 Material handling system and control valve therefor Apr. 23, 1991
4975000 Railroad hopper car outlet gate end tube assemblies Dec. 4, 1990
4974999 Lock for a railroad hopper car outlet gate end tube assembly Dec. 4, 1990
4938637 Method and apparatus for bottom loading a pneumatic transport pressure vessel Jul. 3, 1990
4934877 Pneumatic gate for railway hopper cars Jun. 19, 1990
4893966 Lock apparatus for introducing dry granular materials into a pneumatic conveying conduit and spray gun for such materials Jan. 16, 1990
4884923 Vehicle for bulk transport of powder-form, granular or pellet-like material Dec. 5, 1989
4867615 Hopper car discharge gate Sep. 19, 1989
4850703 Method of mixing pulverulent materials and device for practicing the same Jul. 25, 1989
4776730 System and method for managing fly ash transport and valve for use therein Oct. 11, 1988
4660271 Process of manufacturing spacer frames for glass panes and method of removing dessicant from a corner portion Apr. 28, 1987
4573800 Blender bulk feed valve Mar. 4, 1986
4548147 Hopper barge with bottom flaps and a suction channel Oct. 22, 1985
4511291 Vacuum material conveying apparatus Apr. 16, 1985
4509862 Feed processing system Apr. 9, 1985
4411560 Pneumatic hopper discharge outlet Oct. 25, 1983
4382725 Pneumatic outlet valve May. 10, 1983
4371295 System for spraying powder Feb. 1, 1983
4345859 Hopper discharge valve Aug. 24, 1982
4312607 Pellet gate for pneumatic discharge hopper car Jan. 26, 1982
4197037 Tank distribution take-away system Apr. 8, 1980
4182383 Fluidized bed powder discharge and metering method and apparatus Jan. 8, 1980
4176885 Hopper vessel with discharge valve members adapted to selectively function as part of a discharge conduit Dec. 4, 1979
4114785 Control valve for bottom discharge outlet Sep. 19, 1978
4109966 Pneumatic conveying device Aug. 29, 1978
4073244 Material handling apparatus Feb. 14, 1978
4061401 Pneumatically operated conveyor systems for pulverulent or particulate materials Dec. 6, 1977

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