Class 137/825 - Means to regulate or vary operation of device

Subclass of Class 137 - Fluid handling
Definition: Device provided with means that is additional to the fluidic
No. of patents: 27
Last issue date: 03/06/2012

Number	Title	Issue Date
8127794	Dispenser arrangement for fluidic dispensing control in microfluidic system A dispenser arrangement for fluidic dispensing control into a microfluidic component comprising an enclosed fluid holding area having a base portion and a top portion and a valve adapted to be movable between an open position and a closed position and positioned at ...	03/06/2012
7748410	Fluid handling apparatus A first liquid fed into a first flow passage 6 of a fluid handling apparatus travels to the open end thereof on the side of a second flow passage 7 due to capillarity. The movement of the first liquid is uniformed on the cross section of the flow passa...	07/06/2010
7681595	Microfluidic device capable of equalizing flow of multiple microfluids in chamber, and microfluidic network employing the same Provided are a microfluidic device and a microfluidic network formed by connecting such microfluidic devices. The microfluidic device can equalize the flow of multiple microfluids in a chamber in parallel to thereby have an equal flow rate when the microfluids trans...	03/23/2010
7418977	Liquid-handling apparatus having a liquid switch and method for handling liquids A liquid-handling apparatus has a liquid switch, which has a first channel branching into a second and a third channel, wherein the channels are formed in a rotation body. The channels are adapted to route a liquid volume from the first channel into one of the secon...	09/02/2008
7364647	Laminated flow device A laminated flow device comprises a porous material encapsulated within bonding material. The porous material forms a flow path and the bonding material forms an enclosure surrounding the flow path. Micro-components, such as capillaries, electrodes, reservoirs, brid...	04/29/2008
7316859	Storage system and method for supplying hydrogen to a polymer membrane fuel cell A hydrogen storage system and method having a main hydrogen storage site that contains a sufficient amount of hydrogen for a fuel cell employing a polymer membrane to generate power in accordance with a predetermined electrical power requirement. A main storage site...	01/08/2008
7314567	Method for transferring heterogeneous liquids in microchannels without the occurrence of mixing In the method for mixing-free transport of homogeneous liquids in microchannels a heterogeneous liquid flow (14) is autonomously divided into portions, transported over a distance and then autonomously recombined. When the flow is divided into portions, indiv...	01/01/2008
7171983	Multi-reservoir pressure control system Improved microfluidic devices, systems, and methods allow selective transportation of fluids within microfluidic channels of a microfluidic network by applying, controlling, and varying pressures at a plurality of reservoirs. Modeling the microfluidic network as a s...	02/06/2007
7134453	Microfluidic switch for stopping a liquid flow during a time interval The invention relates to a microfluidic switch for stopping a liquid flow during a time interval with the following features: the switch has at least one first channel and at least one second channel; the first channel and the second channel have a common end area; ...	11/14/2006
7059351	Surface-tension-guided liquid transportation device A liquid transportation device includes a working board, a working liquid, a liquid channel and a cover board, wherein the liquid channel is formed on a top surface of the working board, the covering board is fully covered the liquid channel, the liquid channel comp...	06/13/2006
7037417	Mechanical control of fluids in micro-analytical devices An apparatus for manipulating fluid samples comprises a micro-chip device having first and second covered channels, each channel having openings at both ends. The channels intersect to form a common intersection. Three of the openings of the channels are connected t...	05/02/2006
6779559	Non-mechanical valves for fluidic systems Methods devices and systems that employ non-mechanical valve modules for controlling directing fluid and other material movement through integrated microscale channel network. These non-mechanical valve modules apply forces that counter the driving forces existing t...	08/24/2004
6681788	Non-mechanical valves for fluidic systems Methods devices and systems that employ non-mechanical valve modules for controllably directing fluid and other material movement through integrated microscale channel networks. These non-mechanical valve modules apply forces that counter the driving forc...	01/27/2004
6615857	Modular flow control actuator The present invention is a flow control actuator capable of exciting a fluid via the coupling of edge tones generated along a wedge and resonance generated within a cavity. The invention consists of a resonance cavity and ejector port separated by a wedge...	09/09/2003
5852990	Waste heat boiler A waste heat boiler for cooling a hot process stream includes a plurality of heat exchanging tubes within a cylindrical shell, an outlet chamber for withdrawing the cooled process stream, an insulated by-pass tube having an outlet end in the outlet chambe...	12/29/1998
5571233	Apparatus for freezing water in a pipe at a given location An apparatus for freezing water in a pipe at a given location including a tank having an amount of pressurized gas disposed therein at a temperature below the freezing point of water; a valve coupled to the tank and openable for allowing the gas to be exp...	11/05/1996
5316032	Method and apparatus for laminar flow control A method and apparatus for establishing discrete zones of pressure at the surface of a perforated panel of the type typically used for laminar fluid flow control includes a first array of channel members fluidly communicating with perforations in the pane...	05/31/1994
5211339	Apparatus for dispersing and directing dye onto a substrate An improved apparatus is disclosed for spraying a liquid marking material onto the surface of a substrate by dividing a stream of the marking material into droplets by an impinging stream of pressurized control fluid directed at the surface to be sprayed....	05/18/1993
5165438	Fluidic oscillator In accordance with an illutrative embodiment of the present invention, a fluidic oscillator includes a transverse vacuum port which extends between the diffuser legs a predetermined distance below the leading edge surface of the splitter. When flow is dow...	11/24/1992
4828174	Method and apparatus for interrupting fluid streams A method and apparatus for forming and selectively interrupting one or more fluid stream which is confined within an open channel. A transverse fluid stream is introduced into the channel at a point under the stream flowing within the channel. Introductio...	05/09/1989
4789004	Apparatus and method for increasing fluid flow rate in a flow path including a curved flow path section An internal combustion engine in which a minor portion of the air-fuel mixture being flowed to the combustion engine chamber is withdrawn through a fluid withdrawal passage. The fluid withdrawal passage enters the curved outlet section of the intake passa...	12/06/1988
4786230	Dual volute molten metal pump and selective outlet discriminating means This invention relates to improvements in molten metal pumps for the transfer of principally molten aluminum and zinc from specialized molten and holding furnaces through fluidics control means downstream of the pump to control the direction of flow of mo...	11/22/1988
4716935	Fluidic rectifier A full wave fluidic rectifier which produces a direct fluidic output signal having an amplitude which increases from a very low level as the amplitude of an alternating fluidic input signal increases. In includes a nozzle for directing a fluid stream alon...	01/05/1988
4565220	Liquid metering and fluidic transducer for electronic computers The invention relates to fluidic transducers of electrical signals from an electronic computer for accurately metering flow of a liquid to a utilization device. A liquid filled hollow channel means is accelerated along the flow axis thereof to produce a f...	01/21/1986
4467984	Angular rate sensing apparatus and methods A three-axis navigational guidance system utilizes three specially designed internal jet-type fluidic angular rate sensors which simultaneously sense the rotational rate of a guided body relative to three mutually perpendicular control axes. Fluidic outpu...	08/28/1984
4077572	Reduced size altitude insensitive thrust vector control nozzle An overexpanded thrust vector control nozzle has a converging extension section downstream of the jet exhaust stream deflecting section for defining a restriction or orifice. The orifice functions to elevate the exhaust pressure in the deflection section,...	03/07/1978
3995662	Fluidic switches Fluidic switches characterized by a first divergent region immediately downstream of a nozzle throat and a second downstream region of reduced divergence which will be contacted by a deflected jet. The switches of the present invention include control por...	12/07/1976

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Class 137/825 - Means to regulate or vary operation of device