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Hatch Ltd patents


Recent patent applications related to Hatch Ltd. Hatch Ltd is listed as an Agent/Assignee. Note: Hatch Ltd may have other listings under different names/spellings. We're not affiliated with Hatch Ltd, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "H" | Hatch Ltd-related inventors


Flicker control for electric arc furnace

It is proposed herein to employ thyristor firing angles as a fast prediction of flicker in power supply for an electric arc furnace. It is further proposed to actively modify operating variables for the electric arc furnace to maintain the flicker below a predefined threshold. ... Hatch Ltd

Process and reactor for arsenic fixation

A process and reactor for arsenic fixation in which a first gas stream comprises oxygen and an iron-containing particulate material. The oxygen and particulate material may be fed to reactor through respective first and second inlets. ... Hatch Ltd

Method and apparatus for measuring the length of an electrode in an electric arc furnace

A method for determining a length parameter of an electrode during operation of an electric arc furnace. An internal duct extends through the length of the electrode and is open at its lower end. ... Hatch Ltd

System and method for optimizing a rail system

A method and system for optimizing a train rail system. The method comprises creating a model of the rail system in a memory, creating an objective function in the memory, and determining, using a computer, a configuration of the rail system which optimizes the objective function for the process systems model. ... Hatch Ltd

Low-profile aluminum cell potshell and method for increasing the production capacity of an aluminum cell potline

An aluminum reduction cell having a shell structure with a pair of longitudinally extending sidewalls, a pair of transversely extending endwalls, a bottom wall, and an open top having an upper edge. The aluminum reduction cell also has a transverse support structure with transverse bottom beams located under the shell structure and extending transversely between the sidewalls, each of the transverse bottom beams having a pair of opposed ends. ... Hatch Ltd

Methods and apparatus for metal recovery from slag

A method for recovering metal values from a molten slag composition includes atomizing the slag with an oxygen-containing gas in a gas atomization apparatus, to produce solid slag granules. Oxygen in the atomizing gas converts metals to magnetic metal compounds, thereby magnetizing the metal-containing slag granules. ... Hatch Ltd

High-pressure self-cleaning elbow

An exhaust elbow includes an inlet, an outlet, a curved gas guiding duct between the inlet and the outlet, and a plurality of thermally insulated stiffeners connected to an external surface of the curved gas guiding duct, each of the stiffeners including a metallic component and thermal insulation adjacent to at least a portion of a surface of the metallic element.. . ... Hatch Ltd

Low-effluent syngas handling system

A system for processing a syngas stream including particulate matter, a combustible gas, and acid components is disclosed. The system includes a gasifier vessel configured to produce a raw syngas stream; a gas cooling apparatus configured to cool the raw syngas stream to produce a cooled syngas stream; an hcl and particulate removal apparatus configured to produce a reduced-hcl syngas stream; a first reheat apparatus configured to produce a first reheated syngas stream; a cos and hcn hydrolysis apparatus configured to produce a hydrolyzed syngas stream; an h2s removal apparatus configured to produce a reduced-h2s syngas stream; a second reheat apparatus configured to produce a second reheated syngas stream; an activated carbon bed apparatus configured to produce a polished syngas stream; and a compression and intercooling apparatus configured to compress and cool the polished syngas stream to produce a clean syngas stream.. ... Hatch Ltd

Apparatus connecting a water sample bottle to an unmanned aerial vehicle (uav) in order to collect water samples from below the surface of a water body

An apparatus to connect a multi-parameter probe or water sampling vessel to an unmanned aerial vehicle (uav), or aerial drone, facilitates the safe collection of samples from various depths in any water body or storage tank. Aspects of the present invention reduce risks to humans, who would, under normal circumstances, be required to be present on the water body surface to carry out sampling. ... Hatch Ltd

Granulated slag products and processes for their production

A process for preparing solid slag granules from a molten slag composition comprises: (a) providing the molten slag composition; (b) converting the molten slag composition into the solid slag granules in a dispersion apparatus; and (c) sorting the solid slag granules by shape in a separator to produce a plurality of fractions having different sphericities. Granular slag products comprise one or more fractions of solid slag granules produced by the process, and include proppants, roofing granules, catalyst supports, which may be porous or non-porous, and coated or uncoated.. ... Hatch Ltd

Plug flow reactor with internal recirculation fluidized bed

A reactor comprises an outer sidewall and a bottom wall enclosing a hollow chamber comprising a lower fluidized bed zone and an upper freeboard zone. A plurality of inlets is provided for injecting at least one fluidizing medium into the fluidized bed zone and creating a swirling flow. ... Hatch Ltd

Sleeve seal for electric furnace electrodes

A highly flexible sealing arrangement designed to seal high-temperature furnace ports, particularly the electrode port of an electric furnace. The seal comprises an annular support member fixed to a flexible sealing member and employs the use of a garter spring to uniformly apply the desired amount of seal compression. ... Hatch Ltd








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This listing is an abstract for educational and research purposes is only meant as a recent sample of applications filed, not a comprehensive history. Freshpatents.com is not affiliated or associated with Hatch Ltd in any way and there may be associated servicemarks. This data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Hatch Ltd with additional patents listed. Browse our Agent directory for other possible listings. Page by FreshPatents.com

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