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Browse by Category: Main > Packaging & Containers
Class Information
Number: 222/261
Name: Dispensing > With discharge assistant (e.g., impeller, pump, conveyer, movable trap chamber, etc.) > Plural > Follower combined with casing enclosed impeller > Follower and impeller coaxial or parallel and interconnected > Utilizing fluid pressure and/or motor
Description: Dispensers which utilize either fluid under pressure or a motor to operate either or both the follower or impeller.










Patents under this class:

Patent Number Title Of Patent Date Issued
8701946 Fluid dispense pump with drip prevention mechanism and method for controlling same Apr. 22, 2014
8544699 Non-rotating single post ram for inductor pump Oct. 1, 2013
8469231 Mixing rotary positive displacement pump for micro dispensing Jun. 25, 2013
8302821 Paste application device Nov. 6, 2012
8220669 Fluid dispense pump with drip prevention mechanism and method for controlling same Jul. 17, 2012
8162185 Viscous material processing system Apr. 24, 2012
8141752 Hand-held applicator unit Mar. 27, 2012
8070021 Hydraulic container evacuator and method Dec. 6, 2011
7992490 Automatic by-pass control system for meat injection machine and method of using same Aug. 9, 2011
7861893 Adhesive dispenser for surgery Jan. 4, 2011
7694857 Fluid dispense pump with drip prevention mechanism and method for controlling same Apr. 13, 2010
7648052 Viscous medium feeder Jan. 19, 2010
7225946 Constant pressure fluid-dispensing pumping system and method Jun. 5, 2007
6983867 Fluid dispense pump with drip prevention mechanism and method for controlling same Jan. 10, 2006
6935534 Mixing rotary positive displacement pump for micro dispensing Aug. 30, 2005
6883687 Continuously shooting pneumatic grease gun structure Apr. 26, 2005
6691895 Mixing rotary positive displacement pump for micro dispensing Feb. 17, 2004
6386396 Mixing rotary positive displacement pump for micro dispensing May. 14, 2002
6290106 Angle adjustable grease dispensing gun Sep. 18, 2001
5951259 Reciprocating pump with improved primer element and method Sep. 14, 1999
5730250 Gear type grease pump Mar. 24, 1998
5564606 Precision dispensing pump for viscous materials Oct. 15, 1996
5361940 Pump evacuation system for bulk containers of high viscosity fluids Nov. 8, 1994
5265773 Paste feeding apparatus Nov. 30, 1993
5257723 Bulk melter with material recirculation Nov. 2, 1993
5244123 Apparatus and method for applying sealing material Sep. 14, 1993
5072854 Method for transporting a cured organic or organosiloxane gel Dec. 17, 1991
4792063 Follower plate assembly Dec. 20, 1988
4651897 Portable progressive cavity pump Mar. 24, 1987
4389001 Interface control circuit for multiple hot melt material supply systems Jun. 21, 1983
3976229 Hot melt dispensing apparatus Aug. 24, 1976











 
 
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