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Class Information
Number: 222/260
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
Description: Dispensers in which the follower and the casing enclosed impeller are both (1) coaxial or with their axes parallel and (2) interconnected.










Sub-classes under this class:

Class Number Class Name Patents
222/261 Utilizing fluid pressure and/or motor 31


Patents under this class:
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Patent Number Title Of Patent Date Issued
8453886 Device and method for discharging constant amount of high-viscosity material Jun. 4, 2013
8413854 Dispenser with variable-volume storage chamber, one-way valve, and manually-depressible actuator Apr. 9, 2013
8302821 Paste application device Nov. 6, 2012
8066153 Device for dispensing a fluid product Nov. 29, 2011
7984833 Fluid dispenser Jul. 26, 2011
7886937 Dispenser with variable-volume storage chamber, one-way valve, and manually-depressible actuator Feb. 15, 2011
7770762 Deformable flexible pouch and device for packaging and dispensing fluid products Aug. 10, 2010
7644842 Dispenser having variable-volume storage chamber and depressible one-way valve assembly for dispensing creams and other substances Jan. 12, 2010
7377406 Two stage grease gun May. 27, 2008
7337927 Two stage grease gun Mar. 4, 2008
7264142 Dispenser having variable-volume storage chamber and depressible one-way valve assembly for dispensing creams and other substances Sep. 4, 2007
7216782 Dispenser for discharging liquid material May. 15, 2007
7195136 Dispenser for supplying portions of pasty masses Mar. 27, 2007
6991135 Dispenser for the apportioned delivery of pasty substances Jan. 31, 2006
6854622 Dispensing pump accessories for preventing the ingress of air and for aiding in alignment Feb. 15, 2005
6834780 Paste dispenser Dec. 28, 2004
6550957 Device and method for preparing calcium phosphate-based cement Apr. 22, 2003
6382472 Viscous fluid dispenser May. 7, 2002
6367962 Device and method for preparing calcium phosphate-based bone cement Apr. 9, 2002
6302304 Dispensing systems Oct. 16, 2001
6230935 Dual chamber pump dispenser May. 15, 2001
6216966 Dispensing devices Apr. 17, 2001
6161731 Dosing device Dec. 19, 2000
6070763 Dispenser pump for a liquid or pasty product Jun. 6, 2000
6006948 Two-chamber metering dispenser Dec. 28, 1999
5878920 Dispenser for discharging a flowable medium Mar. 9, 1999
5826753 Grease gun locking mechanism Oct. 27, 1998
5788124 Device for packaging and dispensing a liquid or semi-liquid substance Aug. 4, 1998
5611463 Double dispenser for fluid products Mar. 18, 1997
5244123 Apparatus and method for applying sealing material Sep. 14, 1993
5236021 Powder filling apparatus Aug. 17, 1993
5197637 Pump apparatus for a free-flowing, in particular pasty and/or liquid, product, and dispenser having such a pump apparatus Mar. 30, 1993
5127548 Medicinal spray device with two substance compartments separated by puncturable membrane Jul. 7, 1992
5100027 Dispensing unit for at least one product, a cosmetic product in particular, in cream, liquid or powder form Mar. 31, 1992
5085350 Pump assembly with container for storing liquid in isolation from ambient air Feb. 4, 1992
5072854 Method for transporting a cured organic or organosiloxane gel Dec. 17, 1991
5071040 Surgical adhesives mixing and dispensing implement Dec. 10, 1991
4978037 Dispenser for products in paste form Dec. 18, 1990
4946076 Dispenser for pasty compositions Aug. 7, 1990
4838460 Product dispenser having actuator locking collar and shroud Jun. 13, 1989
4830228 Dispenser package for viscous fluids May. 16, 1989
4830221 Toothpaste pump formulation May. 16, 1989
4805809 Dispensing package for a viscous product Feb. 21, 1989
4804115 Pump chamber dispenser Feb. 14, 1989
4790456 Material supply equipment for viscous fluid pressure feed system Dec. 13, 1988
4776496 Dispenser of generic paste products and specifically toothpaste Oct. 11, 1988
4715518 Dispenser for striped viscous products Dec. 29, 1987
4629097 Snap-action orifice sealing plug for viscous product dispenser Dec. 16, 1986
4598843 Take-up piston shipping lock for viscous product dispensers Jul. 8, 1986
4572103 Solder paste dispenser for SMD circuit boards Feb. 25, 1986

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