...In 1790, the cost to obtain a patent was between $4 and $5.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8262281 | Device for mixing a liquid medium The invention provides a device for mixing a liquid medium, an apparatus for mixing a liquid medium, a system comprising a device and an apparatus and a method for mixing a liquid medium. The device comprises a flexible membrane (12) and a structural part ( | 09/11/2012 |
| 8047704 | Dispenser with dynamic mixer for two-part compositions Novel dispenser means are provided for mixing and dispensing two-part curable compositions wherein the mixer elements are isolated from the curable components. ... | 11/01/2011 |
| 8042991 | Dispenser with dynamic mixer for two-part compositions Novel dispenser means are provided for mixing and dispensing two-part curable compositions wherein the mixer elements are isolated from the curable components. ... | 10/25/2011 |
| 7972058 | Apparatus and method for mixing with a diaphragm pump An apparatus for mixing a fluid including a storage vessel including a hollow portion for holding the fluid, the hollow portion including at least one access port, the at least one access port adapted to at least one of receive and expel fluid and a diaphragm pump i... | 07/05/2011 |
| 7963690 | Dispenser with dynamic mixer for two-part compositions Novel dispenser means are provided for mixing and dispensing two-part curable compositions wherein the mixer elements are isolated from the curable components. ... | 06/21/2011 |
| 7614781 | Apparatus and method for mixing components In an apparatus for mixing components in a mixing chamber, those parts of the mixing chamber which will come into contact with the components are defined by a foil material which can be renewed between two successive mixing/processing operations. The mixing chamber ... | 11/10/2009 |
| 7441652 | Mixing system A mixing system and method for forming bone cement by mixing liquid monomer methyl methacrylate (MMA) with a powder component comprising polymethyl methacrylate (PMMA). A container of MMA is received in a bag. The MMA is emptied from the container into the bag, and ... | 10/28/2008 |
| 7377686 | Disposable mixing system The present invention uses one or more bags that are capable of being selectively pressurized and deflated in conjunction with a disposable bio bag such as a fermenter, mixing bag, storage bag and the like. The pressure bag(s) may surround a selected outer portion o... | 05/27/2008 |
| 7235175 | Device for treating hydrophilic sludge by hydraulic turbulence effect combined with oxidation and chemical reactions by additive input A method and device for treating sludge and slime to enable reuse in soil upgrading and in building material systems. Hydrophilic sludge and slime having a water content not less than 70% are continuously treated in a manner which enables colloid removal, dehydratio... | 06/26/2007 |
| 7217380 | Vibration apparatus and methods of vibration The present invention relates to apparatus and methods of vibration. In particular, the present invention relates to apparatus and methods of vibration for tooling in a structure, such as, for example, a fuselage. In one implementation, the tooling comprises at leas... | 05/15/2007 |
| 7195393 | Micro fluidic valves, agitators, and pumps and methods thereof A valve which has a structure with at least one opening and a member which has a fixed static charge and also has a first position exposing the opening and a second position sealing the opening. A method for making the valve includes providing a structure with at le... | 03/27/2007 |
| 7070740 | Method and apparatus for processing biomolecule arrays A microarray assay system using an array-of-arrays plate mounted on the top surface of a vacuum fixture, and an automatic handling system that handles the plate and fixture assembly. The A2 plate includes a tray formed of a flexible material and a rigid f... | 07/04/2006 |
| 6939032 | Cover slip mixing apparatus A cover slip mixing apparatus having a support and a flexible cover slip positioned over and forming a chamber between the support and the cover slip. A device is positioned with respect to the support and cover slip for applying a force on the cover slip and flexin... | 09/06/2005 |
| 6931984 | Feature disablement controlled brewer A beverage brewer (10) with a controller (14) that automatically disables selected brewer functions unless enabled by an enablement code that enables use that is only sufficient to brew a preselected quantity of brew by mixing the brew ingredient (1... | 08/23/2005 |
| 6910797 | Mixing device having sequentially activatable circulators A mixing device includes a mixing chamber, inlet and outlet paths, and circulators adapted to change shape or temperature in response to electric current. The change in shape or temperature causes substances to circulate within the mixing chamber to form a mixture. ... | 06/28/2005 |
| 6908223 | Systems for mixing liquid solutions and methods of manufacture A mixing system includes a flexible mixing bag having an interior surface bounding a compartment, the compartment being adapted to hold a liquid solution. A mixer is disposed within the compartment of the mixing bag. A shaft has a first end and an opposing second en... | 06/21/2005 |
| 6837610 | Bioprocess container, bioprocess container mixing device and method of use thereof A bioprocess container consists of a flexible container, placed inside a heat exchanger. By providing a disposable agitation device inside the sealed container, a filled container can be stirred without having to open the container. Possible agitation elements inclu... | 01/04/2005 |
| 6318888 | Method and device for introducing sound waves into reactors An apparatus for introducing vibrations into a vessel having: (a) a vessel capable of receiving a fluid medium; (b) a flexible membrane located at a bottom end of the vessel; (c) an upper pressure chamber located adjacent to an outer surface of the flexib... | 11/20/2001 |
| 5826979 | Waste material processing apparatus and method An apparatus for agitating small batches of septic waste material contained in a processing tank into sludge material and waste water using an oxidizing agent and a flocculating agent. The apparatus includes at least one agitator with a non-rotating mixin... | 10/27/1998 |
| 5456586 | Apparatus for manufacturing articles made of polyurethane An apparatus for manufacturing articles made of polyurethane that includes a mold assembly in communication with a mix chamber. The mix chamber is positioned below the mold assembly. The mix chamber includes a propeller for mixing the liquid polyurethane ... | 10/10/1995 |
| 5312754 | Composting apparatus and system The present invention is a compost apparatus that is simple, economical, reliable and may be transportable, yet contains all odorous emissions. Odorous materials are handled in a fully enclosed manner using containers which may be capable of providing in-... | 05/17/1994 |
| 5251978 | Driving device for a vortex mixing apparatus A driving device for a vortex mixing apparatus comprises holders for holding a mixing unit of a type having at each opposite end a pumping diaphragm for imposing a pulsatile flow on a liquid passing through a primary channel in the unit. Two pistons are e... | 10/12/1993 |
| 5240323 | Pharmaceutical mixing container with extendable agitator bellows A pharmaceutical mixing container for storing a liquid having at least two factions which tend to separate during storage. A housing has an inner volume and is closed at one end by a septum arrangement. An extendable mixing element is slidably and sealing... | 08/31/1993 |
| 5052813 | Tube type vortex ring mixers A method and apparatus is disclosed for mixing or agitating fluids using vortex rings in which a tube of inside diameter d is inserted into the fluid with an open end in the fluid. Fluid is drawn into the tube, and a slug of fluid is propelled a distance ... | 10/01/1991 |
| 4810099 | Mixer A mixer includes an elongated flexible sleeve that is supported in a housing in a vertical orientation and has a mixing shaft extending therein with a plurality of blade holders supported on the shaft and each blade holder supports a plurality of blades. ... | 03/07/1989 |
| 4793714 | Apparatus for mixing fluids Apparatus for mixing two fluids, which could be a gas and a liquid or two liquids, comprises a planar distribution outlet for the gas or one of the two liquids closing an otherwise airtight chamber and a vibrating membrane as a wall of the chamber. Tbe di... | 12/27/1988 |
| 4685811 | Non-intrusive mixing of fluid A mixing apparatus includes two compartments which are interconnected by conduits of two different types. The conduit or conduits together of the first type present a lower resistance of flow from one compartment to the other than do the conduit or condui... | 08/11/1987 |
| 4449827 | Mixing device This invention relates to a device for thoroughly mixing the liquid contents of first and second containers without exposing either the liquid contents or the resultant mixture to outside contamination. The device features a movable pumping diaphragm whic... | 05/22/1984 |
| 4207007 | Liquid-stirring device and installation for treating loose materials A tubular chamber is divided by a rigid annular partition into two sections. Each section comprises a resilient membrane installed co-axially with the chamber shell with a certain gap relative to the shell to form a cavity communicating with a gas medium ... | 06/10/1980 |
| 4153375 | Method of agitating slurries An apparatus for agitating a slurry to increase its settling rate has at least one fluid inflatable container capable of being inflated and deflated, which is immersed in the slurry, and a control to feed the container with fluid to inflate it, and to int... | 05/08/1979 |
| 3962892 | Machine for controlled conditioning of liquids and mixtures A container for liquids or solids carried in liquids has a rigid upper portion and a flexible lower portion. The rigid upper portion is mounted on and supported by a frame. The flexible lower portion is surrounded by a closed chamber which may, under cert... | 06/15/1976 |