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Class 366/176.3 - Piston pump


Subclass of Class 366 - Agitating
Definition: Subject matter wherein the pump includes a movable piston
No. of patents: 13
Last issue date: 07/06/2010


NumberTitleIssue Date
7748892Method and apparatus for compounding medications
An active ingredient, such as particles of a pharmaceutical agent, is uniformly distributed within a transdermal vehicle, such as a gel or other viscous material. The method comprises filling said first container with a non-uniform mixture of a transdermal vehicle a...
07/06/2010
7661873Homogeniser for the continuous treatment of fluids at very high pressure
A homogeniser (1) for the continuous treatment of fluids at very high pressure comprises at least one reciprocating plunger (5) in a compression chamber (6) and a guide chamber (11) from a fluid intake position to a delivery position. Sai...
02/16/2010
7214717Polydisperse double emulsion, corresponding monodisperse double emulsion and method for preparing the monodisperse emulsion
A fractionable polydisperse stable double oil-in-water emulsion, having 50 to 95 wt. % relative to the total weight of the double emulsion, droplets of an invert monodisperse emulsion Ei dispersed in a continuous aqueous phase. The continuous aqueous phase includes ...
05/08/2007
7178978Fluid mixing apparatus and method
This invention relates to devices, methods, and systems for mixing materials, and in particular provides linkages and containers such as syringes in operative arrangement such that actuation of the linkages can move material from one container to another thereby mix...
02/20/2007
7033067Cascading orifice mixer
A cascading orifice mixer for mixing a viscoelastic material comprising a plurality of chambers connected in series, including a first chamber, at least one intermediate chamber and a last chamber, each chamber including an orifice providing fluid communication betw...
04/25/2006
6921002Device for dispensing one- and multi-component compounds and valve arrangement for this purpose
A device for mixing and metering one or multi-component compounds from at least one cartridge. These compounds can be in the form of a basic component and a catalyst component for impression compounds for dental applications. This device includes a punch for admitti...
07/26/2005
6799884Dual chamber orifice mixer and method of use
A method and apparatus for mixing a polymer with an agglomerates of one or more compounds in a pair of opposed pressure cylinders with a nozzle block there between using moving the pistons to force the polymer with the agglomerates from pressure cylinders into the o...
10/05/2004
6644845Buffer store for polymer melts, especially cellulose solutions
The present invention relates to a buffer tank as is substantially used for ensuring a constant supply of the spinning machine with a polymer melt in spinning machines. To this end the buffer tank is provided with a compensation chamber whose volume is va...
11/11/2003
6367961Apparatus for making an emulsion
An apparatus for making a sterile emulsion, comprising a fluid pathway, a pumping bore, a reciprocable (reciprocal) member, and a valve body. The pumping bore being in fluid communication with the fluid pathway and having a reciprocable member reciprocabl...
04/09/2002
6353033Method and apparatus for cutting high viscosity liquid material
Method and apparatus for cutting high viscosity liquid material, said apparatus comprising a cylinder divided into upper and lower tanks by a partition with a central discharge opening, a moveable and elevatable liquid supply pipe with a distal end positi...
03/05/2002
5823671Apparatus and method of mixing materials in a sterile environment
An apparatus for mixing a particulate material into a liquid includes a pair of variable volume receptacles interlinked by a communication passage. A combined volume of liquid and particulate material is received within the variable volumes, and the volum...
10/20/1998
4347002Method and apparatus for the preparation of drilling mud
A method for the preparation of drilling mud wherein solid and liquid phases of drilling mud are mixed in a vessel (2) to obtain a homogeneous suspension. After the mixing the drilling mud is caused to pass under pressure through apertures (5 or 6) provid...
08/31/1982
4170420Fluid mixing system
A system for mixing fluids such as drilling fluids and which comprises an elongated container having a cylindrical shaped bottom. An interior conduit is located in the container along its axis and has a plurality of spaced apart inductor inlets along its ...
10/09/1979
 
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