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Doosan Corporation patents (2014 archive)

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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "D" | Doosan Corporation-related inventors

12/25/14 / #20140378310

Superconducting rotating machine and cooling method thereof

Provided are a superconducting rotating machine which improves the cooling efficiency of a rotor by using schemes of passively or actively circulating a coolant and a cooling method thereof. The superconducting rotating machine includes a rotor supported rotatably about a rotation axis and including: at least one superconductive coil; and a central cavity; and a cooling apparatus disposed at an exterior of the rotor and configured to communicate with the cavity, wherein the cooling apparatus includes: a condenser configured to condense a gas coolant supplied through a gas coolant supplying pipe to generate a condensed coolant; a coolant circulating unit configured to supply the condensed coolant into the cavity, configured to recover a vapor coolant evaporated in the cavity into the condenser and configured to circulate the condensed coolant; and a forced circulating unit configured to actively circulate the condensed coolant into the cavity in response to the rotor being tilted.. ... Doosan Corporation

12/25/14 / #20140374724

Organic light-emitting compound and organic electroluminescent device using same

The present invention relates to a novel indole-based compound having superior hole injection and transport capabilities, light-emitting capabilities, and the like, and an organic electroluminescent device which comprises the indole-based compound in one or more organic layers thereof so as to thereby achieve improved characteristics, such as light-emitting efficiency, driving voltage, and lifespan characteristics.. . ... Doosan Corporation

12/25/14 / #20140373925

Method for controlling cooling fan-brake of construction equipment

The present disclosure provides a method for controlling a cooling fan-brake of construction equipment, including: generating a brake charging signal of a brake unit; charging hydraulic oil with a high flow rate in the brake unit and completing the charging of hydraulic oil; turning a loading valve of a cooling fan unit off and turning an unloading valve of the cooling fan unit on when the hydraulic oil is charged; and turning the loading valve of the cooling fan unit on and turning the unloading valve of the cooling fan unit off after the charging of hydraulic oil is completed and a predetermined time elapses.. . ... Doosan Corporation

12/25/14 / #20140373255

Support device

A support device for transferring at least part of the weight of an earring from an earlobe to a part of the ear that comprises cartilage, the device comprising a first portion (p1′) capable of being attached to the earlobe and a second portion (p2′) protruding from the first portion and capable of when the first portion is attached to the earlobe, extending from the earlobe to attach to the part of the ear comprising cartilage.. . ... Doosan Corporation

12/18/14 / #20140371898

Apparatus and method for managing machine tool information for heterogeneous numerical control devices

. . The present disclosure relates to a system and a method for managing machine tool information for heterogeneous numerical control devices, and more particularly, to a system and a method for managing machine tool information for heterogeneous numerical control devices which may manage data of heterogeneous numerical control devices by a mobile device through a network, such as a wide area internet or local wifi, and monitor an operational state of the machine tool.. . ... Doosan Corporation

12/18/14 / #20140369900

Heat exchange type prereformer

The present invention provides a heat exchange type prereformer comprising a shell side having a channel to which cathode exhaust gas is supplied and through which cathode exhaust gas flows so that heat can be exchanged between the cathode exhaust gas and the mixture gas supplied for preforming; a catalyst layer arranged so as to overlap one area of the shell side and formed to cause the mixture gas to have a prereforming reaction; and a tube side connected to the catalyst layer and arranged so as to overlap the other area of the shell side and formed to cause the prereformed mixture gas to exchange heat with the cathode exhaust gas.. . ... Doosan Corporation

12/18/14 / #20140366518

Hydraulic system of construction machine

The present disclosure relates to a hydraulic system of a construction machine. The hydraulic system of the construction machine includes: an electronic proportional pressure reducing valve configured to control a flow rate, to which a maximum pressure is input as a control current value, and which is set to a minimum flow rate; a gear pump configured to provide pilot operation oil to the epprv; a shuttle valve configured to compare a pressure of first pilot operation oil passing through the epprv and a pressure of a flow rate control signal, and output second pilot operation oil having the greater pressure; a hydraulic pump of which a swash plate angle is controlled by the second pilot operation oil; and a pump control device configured to control a pressure of the epprv to be decreased from a maximum pressure by a predetermined inclination when the flow rate control signal is generated.. ... Doosan Corporation

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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. is not affiliated or associated with Doosan Corporation 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 Doosan Corporation with additional patents listed. Browse our Agent directory for other possible listings. Page by