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Class Information
Number: 366/76.9
Name: Agitating > Rubber or heavy plastic working > With specified feed means > Chute or hopper with gravity discharge
Description: Subject matter wherein material is supplied to the mixing chamber solely by gravity by way of a chute or hopper.

Sub-classes under this class:

Class Number Class Name Patents
366/76.92 Having discharge valve 8
366/76.91 Having plural means to feed material to chute or hopper 17

Patents under this class:

Patent Number Title Of Patent Date Issued
8087814 Batch mixer Jan. 3, 2012
7585102 Device for charging a screw lodged in a housing and method for operating a device of this type Sep. 8, 2009
7431583 Injection molding machine Oct. 7, 2008
7404665 Device for charging a screw lodged in a housing and method for operating a device of this type Jul. 29, 2008
7270470 Feed extender for explosive manufacture Sep. 18, 2007
7077558 Dough treatment facility Jul. 18, 2006
6883954 Dough treatment facility Apr. 26, 2005
6056429 Method for processing high molecular weight elastomers May. 2, 2000
5853243 High molecular weight elastomer processing system for chewing gum Dec. 29, 1998
5653534 Screw apparatus and method for supplying reinforcing fiber-containing molten resin using the apparatus Aug. 5, 1997
5490725 Melt-sealing device for extruders for the processing of thermoplastic polymers or rubber Feb. 13, 1996
5486327 Apparatus and method for injecting or extruding colored plastic Jan. 23, 1996
5409366 Apparatus for processing extrudable materials Apr. 25, 1995
5378415 Process for the production of homogeneous rubber blanks Jan. 3, 1995
5318431 Process and apparatus for preparing toner particles Jun. 7, 1994
5297865 Method and apparatus for the mixing of mixing material with thermoplastic material Mar. 29, 1994
5297948 Extruder screw for use in foam plastic extruder Mar. 29, 1994
5286104 Quick release feeding apparatus for an extruder Feb. 15, 1994
5267787 Screw extruder with feed roller Dec. 7, 1993
5261740 One-piece cylindrical extruder barrel assembled with eccentric converging hopper for receiving molten plastic materials Nov. 16, 1993
5225210 Colored resin molder Jul. 6, 1993
5098267 Apparatus and method for producing and molding structural foam Mar. 24, 1992
5024531 Device for continuous degassing of mixes Jun. 18, 1991
4937034 Apparatus and method for cofeeding additives with polymer flake Jun. 26, 1990
4877568 Preparation of plastic extrudate containing an additive Oct. 31, 1989
4859068 Screw type extruder with flow chambers externally and internally of screw Aug. 22, 1989
4842788 Process of an apparatus for extruding a meltable composition Jun. 27, 1989
4832889 Vaulted screw/grooved barrel extrusion machine, method and system May. 23, 1989
4812048 Material feed device for an extruder Mar. 14, 1989
4770539 Barrier screw Sep. 13, 1988
4657499 Screw extruder apparatus adapted for mixing additive fluids Apr. 14, 1987
4636085 Apparatus for removing volatiles from plastic materials delivered to an extrusion or injection molding machine Jan. 13, 1987
4636084 Removing volatiles from plastic materials delivered to an extrusion or injection molding machine Jan. 13, 1987
4580903 Automatic dough parting and kneading machine Apr. 8, 1986
4443109 Method and apparatus for continuous feeding, mixing and blending Apr. 17, 1984
4418844 Movable granulate hopper for injection molding machine Dec. 6, 1983
4252755 Co-extrusion method and apparatus Feb. 24, 1981
4249877 High-speed direct-drive extruder Feb. 10, 1981
4188128 Apparatus for automatically kneading and stretching a mixture Feb. 12, 1980
4013234 Dough mixer Mar. 22, 1977
4003554 Equipment for heating polar polymers to the temperature at which they become plastic Jan. 18, 1977
3999921 Two-channel extruder with mixer Dec. 28, 1976
3989229 Process for continuous metering and mixing Nov. 2, 1976
3985348 Apparatus and method for feeding a powdery material to a plasticized, pressurized polymer Oct. 12, 1976

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