Class 137/909 - MAGNETIC FLUID VALVE

Subclass of Class 137 - Fluid handling
Definition: Art collection drawn to magnetic fluid valve.
No. of patents: 36
Last issue date: 04/17/2007

Number	Title	Issue Date
7204581	Magnetic actuator using ferrofluid slug A magnetostatic actuator uses a ferrofluid slug confined in a cylindrical tube which is wrapped in a conducting coil. By applying a current to the coil, a magnetic field is generated inside the coil. The ferrofluid slug may be attracted to the interior of the coil b...	04/17/2007
7159847	Supplementary control valve device for the inlet channel of a reciprocating internal combustion engine The additional control valve device has a valve element which is guided between a gantry magnet and a trapping magnet in a reversibly movable manner in the direction of the longitudinal axis. An encircling seal is arranged on that side of the housing, in which the g...	01/09/2007
7007972	Method and airbag inflation apparatus employing magnetic fluid An airbag inflation apparatus includes a chamber for generating a gas to inflate an airbag. A valve, including a magnetic fluid and a source of magnetic field, preferably an electromagnet, is associated with the chamber for regulating the flow of the gas into the ai...	03/07/2006
6955589	Delivery system for magnetorheological fluid A magnetorheological fluid delivery system includes a mixing and tempering vessel. Fluid is admitted to the vessel via a plurality of tangential ports, creating a mixing of the fluid in the vessel and promoting homogeneity. Fluid may be reconstituted in the vessel b...	10/18/2005
6926089	Downhole actuation system utilizing electroactive fluids Downhole wellbore tools are actuated by electrically controllable fluids energized by a magnetic field, for example. When energized, the viscosity state of the fluid may be increased by a degree depending on the fluid formulation. Reduction of the controllable fluid...	08/09/2005
6893322	Method and apparatus for measuring and controlling solids composition of a magnetorheological fluid A system for dispensing magnetorheological fluid to an MR finishing machine includes a pump for pressurizing the system; a first magnetic valve for regulating MR fluid flow by magnetically varying the structure and apparent viscosity of the fluid through a first flo...	05/17/2005
6823895	Magnetorheological fluid device The disclosure describes a magnetorheological fluid control valve. The magnetorheological fluid control valve comprises an electromagnetic coil having a first end and a second end. A first arm is magnetically coupled to the first end of the electromagnetic coil. A s...	11/30/2004
6568470	Downhole actuation system utilizing electroactive fluids Downhole wellbore tools are actuated by electrically controllable fluids that are energized by a magnetic field. When energized, the viscosity state of the fluid may be increased by a degree depending on the fluid formulation. Reduction of the controllabl...	05/27/2003
6473928	Magnetic control valve for a suction powered pool cleaner A magnetic control valve is provided in a suction powered pool cleaner of the type for vacuuming dirt and debris from submerged floor and side wall surfaces of a swimming pool. The pool cleaner comprises a head defining a suction inlet for vacuum inflow o...	11/05/2002
6454059	Apparatus and method for a magneto-rheological (MR) damping device A magneto-rheological damping device comprises a core element for carrying a magnetic flux and a magnetic flux generator positioned adjacent to a portion of the core element and operable to generate a magnetic flux in the core element. A sleeve is positio...	09/24/2002
6352144	Flow-control valve and damper A flow control valve assembly for an electro-rheological (ER) fluid has an inlet port, an outlet port and a flow path for ER fluid extending between the inlet and outlet ports. A flow control valve is disposed in the flow path and includes a resilient dia...	03/05/2002
6213445	Solenoid valve with magnetic fluid damper A gap part is formed between a magnetic plate and a moving core in a solenoid part, a magnetic fluid whose viscosity is increased by the influence of the magnetic force is filled in the gap part, the viscosity of the magnetic fluid is increased by the inf...	04/10/2001
6186176	System and method for controlling the flow of a gaseous medium through a fluid A method and system for controlling the flow of a gaseous medium through a fluid are described. The method includes providing a rheologic fluid through which a gaseous medium can be conducted, and controlling the viscosity of the rheologic fluid to contro...	02/13/2001
6158470	Two-way magnetorheological fluid valve assembly and devices utilizing same A controllable valve assembly (18) applicable in Magnetorheological (MR) fluid devices (20), such as MR mounts and MR dampers. The valve assembly (18) includes a valve body (32) having a magnetic circuit (40) contained therein which carries magnetic flux ...	12/12/2000
6131709	Adjustable valve and vibration damper utilizing same An adjustable valve including a passageway, a field responsive fluid within the passageway, and flow adjustment of the fluid through the passageway. In another aspect, the valve is in a vibration damper. In yet another aspect, the damper includes a body, ...	10/17/2000
6116257	Micromotors, linear motors, micropumps, methods of using the same, microactuators, methods of controlling flow properties of fluids, and apparatuses for controlling flow properties of fluids The present invention provides a use of an electro-sensitive movable fluid, that is, a micromotor, a linear motor, a micropump and a method of using the micropump, a microactuator, and an apparatus which these devices are applied to, and a method and an a...	09/12/2000
6095486	Two-way magnetorheological fluid valve assembly and devices utilizing same A controllable valve assembly (18) applicable in Magnetorheological (MR) fluid devices (20), such as MR mounts and MR dampers. The valve assembly (18) includes a valve body (32) having a magnetic circuit (40) contained therein which carries magnetic flux ...	08/01/2000
6044866	Gas flow valve A gas flow valve comprises at least one gas inlet, at least one gas outlet, a flow path between said gas inlet and said gas outlet, a magnetic fluid in the valve arranged in the flow path and means for application of a magnetic field to the magnetic fluid...	04/04/2000
5685348	Electromagnetic filler for developer material A method and apparatus for filling a container with toner using a series of traveling magnetic fields to control the flow of toner from a supply of toner to the container. Initially, an empty container is placed under a fill tube through which the toner w...	11/11/1997
5502965	Device for generating operating states characterized by differences in height in mechanical actuators A device is described for generating operating states characterized by dirences in height in actuators arranged in a matrix. In order to enable operating states which are characterized by differences in height to be produced in mechanical actuators in cl...	04/02/1996
5417314	Electrorheological fluid damper An electrorheological device capable of containing an electrorheological fluid between two electrodes and having members for applying an electrical potential between the electrodes, characterised in that the device has members for subjecting the fluid to ...	05/23/1995
5409354	Variable displacement pump A variable discharge pump (3) comprises a piston (4) reciprocable within a cylinder (2), a displaceable inlet valve (5) adapted to control admission of lower pressure hydraulic fluid (9) to the swept volume areal (10) of the piston (4) and cylinder (2), a...	04/25/1995
5362027	Flow regulating valve for magnetic particles A valve for regulating the flow of materials which are made up substantially of magnetic particles. The valve includes an outer housing and a core assembly secured within the housing to define an annular flow passage therebetween. The core assembly suppor...	11/08/1994
5356269	Variable displacement pump A variable displacement pump (3) comprises a piston (4) reciprocable within a cylinder (2), a displaceable inlet valve (5) adapted to control admission of lower pressure hydraulic fluid (9) to the swept volume area (10) of the piston (4) and cylinder (2),...	10/18/1994
5315961	Hydraulic valve tappet for an internal-combustion engine A hydraulic valve tappet for an internal-combustion engine has a high-pressure valve through which an electroviscous fluid flows as a function of an electric voltage. In this case, a piston is displaced which is connected with a charge cycle valve so that...	05/31/1994
5241991	Electro-rheological control valve An E-R hydraulic control valve that has two or more surfaces that can be moved relatively to one another to adjust a flow orifice size while maintaining a control voltage gradient across the E-R fluid and to seat one surface against the other to shut off ...	09/07/1993
5213694	Water treatment control system for treating cooling tower makeup water An apparatus and method for controlling the amount and concentration of make-up water and chemicals introduce into the recirculating water of a cooling tower system. A float operated make-up valve controls the addition of make-up water to the tower. As ma...	05/25/1993
5190073	Pressure regulating inlet-and-outlet valve A pressure regulating inlet-and-outlet valve for a sealed space enclosed by a housing wall (10). The wall is penetrated by at least one gap (6) that is spanned by a magnetic field and completely occupied by a ferrofluidic liquid (7) confined inside the ga...	03/02/1993
5161653	Electro-rheological shock absorber An electro-rheological controlled shock absorber for use on motor vehicles is disclosed. The shock absorber employs a fluid filled cylinder, a piston member traveling in the cylinder, and an electro-rheological valve controlling the passage of fluid throu...	11/10/1992
5158109	Electro-rheological valve A general electro-rheological valve is disclosed used in controlling the flow of fluids in a variety of applications. The valve comprises an inlet in communication with a fluid source, an outlet for transporting the fluid out of said valve, and an oscilla...	10/27/1992
5113890	Method and apparatus for regulating the flow of particulate ferromagnetic solids Magnetic valve and methods related thereto for regulating the physically unobstructed flow of ferromagnetic particulate solid materials through a conduit by means of an electromagnetic and/or permanent magnetic device for establishing and controlling a ma...	05/19/1992
4963883	Ink jet recording head having magnetic discharge amount control means An ink jet recording head is provided with a discharge port for discharging liquid therethrough, a liquid path communicating with the discharge port, an energy generating member provided in the liquid path and generating energy for discharging the liquid,...	10/16/1990
4840112	Combined valve/cylinder using electro-rheological fluid Electrically controlled combined valve/cylinder apparatus. The apparatus includes a housing having a cylindrical body and spaced first and second end walls closing the body. A cylinder is positioned inside the body and a piston is positioned inside the cy...	06/20/1989
4806082	Fluid actuated pump with improved flow-limiting fluid refill valve An improved flow-limiting fluid refill valve for use with a fluid-actuated pump having a fluid chamber comprises a valve housing, fluid inlet means in communication with a source of hydraulic fluid and fluid outlet means in fluid communication with the fl...	02/21/1989
4649970	Magnetically actuated vapor valve A vapor valve is useful in a vapor recovery nozzle of the type used to dispense fuel to motor vehicles. In response to the stopping of liquid through the valve, the valve stops the flow of vapor through an adjacent passage. The valve operates using couple...	03/17/1987
4463502	Magnetic distributor-downcomer for fluidized beds and magnetic valve to control the flow of solids A technique for controlling the flow of solid particles including at least a certain minimum amount of magnetizable particles in a static fashion, that is, without moving parts is disclosed herein. This technique which relies on magnetism may be utilized ...	08/07/1984

PatentStorm

Famous Patents

PatentStorm News

Class 137/909 - MAGNETIC FLUID VALVE