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Browse by Category: Main > Packaging & Containers
Class Information
Number: 222/309
Name: Dispensing > With discharge assistant (e.g., impeller, pump, conveyer, movable trap chamber, etc.) > With discharge volume varying means > Adjustable stroke pump piston, pulsator or follower
Description: Dispensers in which a pump, piston, pulsator or follower is caused to move through a chamber to eject or force material the volume delivered being varied by adjusting a stop means which limits the motion of the forcing device or the position of the ejecting means with reference to a stationary stop.










Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8678240 Dispenser with actuating means unengaged with the dispensing means Mar. 25, 2014
8668117 Fluid dispensing apparatus and method Mar. 11, 2014
8657160 Pump bottle adapter Feb. 25, 2014
8651338 Delivery of two or more medicaments through a single dose selection and single dispense interface Feb. 18, 2014
8573444 Variable flow dispenser with actuation or feedback cable Nov. 5, 2013
8511520 Ergonomic portion measuring fluent material dispensing system Aug. 20, 2013
8511519 Pet food dispenser Aug. 20, 2013
8444025 Discharge apparatus comprising rotating device May. 21, 2013
8418887 Fluid product dispenser Apr. 16, 2013
8418890 Portion control dispensers Apr. 16, 2013
8388324 Device for metering out a flowable mass using a coaxial rotary piston and plunger Mar. 5, 2013
8376191 Submergible volumetric filling device and method including cone-shaped switching valve capabilities Feb. 19, 2013
8342369 Pressing structure of soap dispenser capable of adjusting output soap amount Jan. 1, 2013
8323582 Quantitative liquid injection device of plasma sterilizer Dec. 4, 2012
8308029 Dispenser Nov. 13, 2012
8302812 Dispenser with discrete dispense cycles Nov. 6, 2012
8261949 Adjustable-volume liquid dispensing pump Sep. 11, 2012
8240510 Multi-way valve device Aug. 14, 2012
8235253 Easy shift dual-mode pistol-grip grease gun Aug. 7, 2012
8206335 Apparatus and methods for delivering fluid and material to a subject Jun. 26, 2012
8152477 Electrokinetic pump designs and drug delivery systems Apr. 10, 2012
8074844 Piston pump stroke adjustment mechanism Dec. 13, 2011
8056765 Discharge device for media Nov. 15, 2011
8056764 Metered volume liquid dispensing device Nov. 15, 2011
7938295 Apparatus for producing material by a chemical reaction May. 10, 2011
7861893 Adhesive dispenser for surgery Jan. 4, 2011
7857173 Solenoid control valve with quick-connect fittings for mating with an adhesive control module assembly of a hot melt adhesive dispensing system Dec. 28, 2010
7849969 Lubrication device for machine tools Dec. 14, 2010
7798374 Process for producing crosslinkable compositions based on organopolysiloxanes Sep. 21, 2010
7735695 Liquid material delivering method and device therefor Jun. 15, 2010
7628294 Pump, dispenser and corresponding process for dispensing a liquid or viscous mass Dec. 8, 2009
7617953 Pneumatic dispensing system with linear actuation and method Nov. 17, 2009
7562792 Method and apparatus for metering a fluid mixture Jul. 21, 2009
7559438 Multiple component metering and dispensing system Jul. 14, 2009
7543720 Method and apparatus for dispensing small volumes of fluid Jun. 9, 2009
7527176 Grease gun with remote-feed adapter May. 5, 2009
7469803 Grease gun with remote-feed adapter Dec. 30, 2008
7438857 Liquid handling tool having porous plunger Oct. 21, 2008
7429353 Method and apparatus for injecting a metered quantity of a liquid into a chamber Sep. 30, 2008
7387221 Fluid discharge pumping apparatus Jun. 17, 2008
7377406 Two stage grease gun May. 27, 2008
7357899 Reagent addition system and method Apr. 15, 2008
7337927 Two stage grease gun Mar. 4, 2008
7306119 Dispensing material produced by a chemical reaction Dec. 11, 2007
7249696 Pneumatic liquid-dispensing gun Jul. 31, 2007
7237694 Food metering and dispensing device Jul. 3, 2007
7168933 Device for discharge or outfeed of a pasty product, preferably foodstuff, from a container Jan. 30, 2007
7156262 Sanitary fill valve assembly with adjustable flow regulator Jan. 2, 2007
7101518 Plasma disinfection system Sep. 5, 2006
7073689 Dispenser with a metering device Jul. 11, 2006

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