Patents by Inventor Dong Jin Cho
Dong Jin Cho has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10779696Abstract: Provided is a cleaner including a dust collecting device for separating dust from air, wherein the dust collecting device includes a dust collecting case having a dust discharging port opened to discharge the collected dust; a discharge cover coupled to one side of the dust collecting case to open and close the dust discharge port; and a sealing member provided to extend from an inner surface of the dust collecting case to a coupling surface of the dust collecting case while being in contact with the dust collecting case and thus to be sealed when the dust discharging port is closed.Type: GrantFiled: October 8, 2018Date of Patent: September 22, 2020Assignee: Samsung Electronics Co., Ltd.Inventor: Dong Jin Cho
-
Publication number: 20200245834Abstract: Provided is a cyclone dust collector with improved usability, a vacuum cleaner having the cyclone dust collector, and a handy-stick type vacuum cleaner having the cyclone dust collector. The handy-stick type vacuum cleaner includes the cyclone dust collector. The cyclone dust collector includes a suction duct configured to suction air in a first direction and provided with an air suction passage formed therein, a cyclone chamber configured to separate dust from air introduced through the suction duct by turning the air, and provided with a grille rotatably formed therein, and a dust collection chamber configured to collect the dust separated from the air in the cyclone chamber in a second direction opposite to the first direction.Type: ApplicationFiled: July 30, 2018Publication date: August 6, 2020Inventors: Dong jin CHO, Yun Soo JANG, Won Kyu LIM, Han Jun SUNG
-
Patent number: 10729298Abstract: In a cyclone dust collector and a vacuum cleaning device having the same, foreign substances can be prevented from being attached on an outer circumferential surface of a grill located at an outlet part, so that an inhalation force of the vacuum cleaning device can be prevented from being lowered. Also, foreign substances collected in the cyclone dust collector can be easily removed. The vacuum cleaning device includes: a cyclone dust collector, wherein the cyclone dust collector includes: a cyclone chamber in which air introduced through an inlet part is whirled and dust is separated from the air; an outlet part disposed so that the air from which the dust is separated is discharged from the cyclone chamber; and a grill that is rotatably disposed in the outlet part.Type: GrantFiled: April 30, 2018Date of Patent: August 4, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Dong Jin Cho
-
Patent number: 10537220Abstract: A vacuum cleaner disclosed that includes a cyclone dust collector. The vacuum cleaner includes a cyclone chamber configured to whirl air introduced from an inlet part to separate dust from the air and including an outlet part provided to discharge the air from which dust is separated from the cyclone chamber. The vacuum cleaner also includes a grill rotatably provided at the outlet part. The vacuum cleaner also includes a rotor including a first fan and a second fan configured to generate an air flow in a direction opposite an air flow direction of the first fan. The vacuum cleaner further includes a case in which the rotor is rotatable accommodated with a gap provided between the grill and the case. The case includes a plurality of holes, and includes a dust removal flow path to discharge air introduced from the plurality of holes through the gap.Type: GrantFiled: December 12, 2017Date of Patent: January 21, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Jin Cho, Yun Soo Jang, Han Jun Sung, Won Kyu Lim
-
Patent number: 10512379Abstract: Provided is a cleaner including a dust collecting device for separating dust from air, wherein the dust collecting device includes a dust collecting case having a dust discharging port opened to discharge the collected dust; a discharge cover coupled to one side of the dust collecting case to open and close the dust discharge port; and a sealing member provided to extend from an inner surface of the dust collecting case to a coupling surface of the dust collecting case while being in contact with the dust collecting case and thus to be sealed when the dust discharging port is closed.Type: GrantFiled: July 30, 2015Date of Patent: December 24, 2019Assignee: Samsung Electronics Co., Ltd.Inventor: Dong Jin Cho
-
Publication number: 20190167058Abstract: A cleaner for collecting dust is provided. The cleaner includes a suction head, a dust collector having a first end mounted on the suction head and including a first dust collecting chamber, an extension member slidably mounted on the dust collector at the other end opposite to the first end of the dust collector, and a first dirt removing member disposed at one end of the extension member and having elasticity.Type: ApplicationFiled: November 26, 2018Publication date: June 6, 2019Inventors: Dong Jin CHO, Hyeon Woo TAK
-
Publication number: 20190038097Abstract: Provided is a cleaner including a dust collecting device for separating dust from air, wherein the dust collecting device includes a dust collecting case having a dust discharging port opened to discharge the collected dust; a discharge cover coupled to one side of the dust collecting case to open and close the dust discharge port; and a sealing member provided to extend from an inner surface of the dust collecting case to a coupling surface of the dust collecting case while being in contact with the dust collecting case and thus to be sealed when the dust discharging port is closed.Type: ApplicationFiled: October 8, 2018Publication date: February 7, 2019Inventor: Dong Jin Cho
-
Publication number: 20180242803Abstract: In a cyclone dust collector and a vacuum cleaning device having the same, foreign substances can be prevented from being attached on an outer circumferential surface of a grill located at an outlet part, so that an inhalation force of the vacuum cleaning device can be prevented from being lowered. Also, foreign substances collected in the cyclone dust collector can be easily removed. The vacuum cleaning device includes: a cyclone dust collector, wherein the cyclone dust collector includes: a cyclone chamber in which air introduced through an inlet part is whirled and dust is separated from the air; an outlet part disposed so that the air from which the dust is separated is discharged from the cyclone chamber; and a grill that is rotatably disposed in the outlet part.Type: ApplicationFiled: April 30, 2018Publication date: August 30, 2018Applicant: Samsung Electronics Co., Ltd.Inventor: Dong Jin Cho
-
Publication number: 20180213989Abstract: Provided is a cleaner including a dust collecting device for separating dust from air, wherein the dust collecting device includes a dust collecting case having a dust discharging port opened to discharge the collected dust; a discharge cover coupled to one side of the dust collecting case to open and close the dust discharge port; and a sealing member provided to extend from an inner surface of the dust collecting case to a coupling surface of the dust collecting case while being in contact with the dust collecting case and thus to be sealed when the dust discharging port is closed.Type: ApplicationFiled: July 30, 2015Publication date: August 2, 2018Inventor: Dong Jin Cho
-
Patent number: 10028630Abstract: A cleaner including a dust collection unit configured to separate dust from air through centrifugation is provided. The dust collection unit includes a dust collection case having an inlet through which air is introduced and an outlet through which the air is discharged, and a cyclone assembly located in the dust collection case to separate dust from the air introduced through the inlet. The cyclone assembly includes a dust separation housing having an inner space, configured to have a first introduction unit formed at a side surface thereof; and an air curtain generation member coupled to the dust separation housing at a lower part of the first introduction unit, configured to include an air curtain discharge unit arranged at one upper end thereof so that the air curtain discharge unit allows vertical airflow ascending along the first introduction unit to be discharged.Type: GrantFiled: October 9, 2015Date of Patent: July 24, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Dong Jin Cho
-
Publication number: 20180160871Abstract: A vacuum cleaner disclosed that includes a cyclone dust collector. The vacuum cleaner includes a cyclone chamber configured to whirl air introduced from an inlet part to separate dust from the air and including an outlet part provided to discharge the air from which dust is separated from the cyclone chamber. The vacuum cleaner also includes a grill rotatably provided at the outlet part. The vacuum cleaner also includes a rotor including a first fan and a second fan configured to generate an air flow in a direction opposite an air flow direction of the first fan. The vacuum cleaner further includes a case in which the rotor is rotatable accommodated with a gap provided between the grill and the case. The case includes a plurality of holes, and includes a dust removal flow path to discharge air introduced from the plurality of holes through the gap.Type: ApplicationFiled: December 12, 2017Publication date: June 14, 2018Inventors: Dong Jin CHO, Yun Soo JANG, Han Jun SUNG, Won Kyu LIM
-
Patent number: 9980619Abstract: In a cyclone dust collector and a vacuum cleaning device having the same, foreign substances can be prevented from being attached on an outer circumferential surface of a grill located at an outlet part, so that an inhalation force of the vacuum cleaning device can be prevented from being lowered. Also, foreign substances collected in the cyclone dust collector can be easily removed. The vacuum cleaning device includes: a cyclone dust collector, wherein the cyclone dust collector includes: a cyclone chamber in which air introduced through an inlet part is whirled and dust is separated from the air; an outlet part disposed so that the air from which the dust is separated is discharged from the cyclone chamber; and a grill that is rotatably disposed in the outlet part.Type: GrantFiled: October 27, 2015Date of Patent: May 29, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Dong Jin Cho
-
Publication number: 20170209013Abstract: A cleaner including a cyclone dust collector is disclosed. The cleaner includes a dust collector configured to separate dust from air through centrifugation. The dust collector includes: a dust collection case having an inlet through which air is introduced and an outlet through which the air is discharged; and at least one dust separator arranged to separate dust from the air introduced through the inlet. A cleaning member is provided in the at least one dust separator such that the cleaning member cleans at least a portion of an inner wall of the at least one dust separator.Type: ApplicationFiled: March 25, 2015Publication date: July 27, 2017Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Dong Jin CHO
-
Publication number: 20170188769Abstract: A cyclone dust collector having improved usability and a vacuum cleaner having the same are provided. The cyclone dust collector includes: a cyclone chamber including an inlet through which air is drawn in and an outlet through which dust-filtered air is discharged; a discharge passage disposed inside the cyclone chamber; a spiral part formed around the discharge passage to be inclined in a spiral pattern; and a grill rotatably disposed on the discharge passage, and the outlet is formed inside the discharge passage.Type: ApplicationFiled: December 30, 2016Publication date: July 6, 2017Inventors: Dong-jin Cho, Hyeon-woo Tak
-
Patent number: 9567046Abstract: A boat includes: a pair of buoyancy units spaced from each other; a bottom plate structure connecting the bottoms of the pair of buoyancy units to each other; and a water storage defined by the pair of buoyancy units and the bottom plate structure, open rearward at the stern to take water from the outside, and keeping the water flowing therein. The boat can keep the balance more stable, is free from a common waterproof problem, and can improve a running ability.Type: GrantFiled: June 29, 2012Date of Patent: February 14, 2017Inventor: Dong-Jin Cho
-
Patent number: 9472330Abstract: There is provided a high speed solenoid having enhanced response characteristics. The high speed solenoid includes: a movable shaft linearly movable in an axial direction; a movable coil unit coupled to the movable shaft; and a magnetic field forming unit forming a magnetic field in a direction perpendicular with respect to that of a current flowing in the movable coil unit, wherein when a current is applied to the movable coil unit, the movable coil unit is moved by a magnetic field formed by the magnetic field forming unit to move the movable shaft. According to the high speed solenoid, the weight of a moving part is significantly reduced, and since an electrical time constant is small, a response speed of the solenoid may be enhanced.Type: GrantFiled: October 10, 2014Date of Patent: October 18, 2016Assignee: Hyundai Heavy Industries Co., Ltd.Inventors: Dong Kyu Shin, Jong Sung Kang, Dong Jin Cho
-
Patent number: 9466412Abstract: The magnetic contactor, according to an exemplary embodiment, includes: a moving core including a main core disposed to be movable in a length direction thereof and first and second core plates disposed at both ends of the main core, respectively; a coil provided on the circumference of the main core; a fixed core disposed around the coil to form a magnetic path; and a permanent magnet disposed between the coil and the fixed core, wherein the first core plate is disposed outside the fixed core, the second core plate is disposed inside the fixed core, and the fixed core is provided with at least one protrusion to reduce a gap between the fixed core and the first or second core plate.Type: GrantFiled: June 25, 2015Date of Patent: October 11, 2016Assignee: Hyundai Heavy Industries Co., Ltd.Inventors: Dong Jin Cho, Dong Kyu Shin, Young Myoung Yeon
-
Publication number: 20160278592Abstract: In a cyclone dust collector and a vacuum cleaning device having the same, foreign substances can be prevented from being attached on an outer circumferential surface of a grill located at an outlet part, so that an inhalation force of the vacuum cleaning device can be prevented from being lowered. Also, foreign substances collected in the cyclone dust collector can be easily removed. The vacuum cleaning device includes: a cyclone dust collector, wherein the cyclone dust collector includes: a cyclone chamber in which air introduced through an inlet part is whirled and dust is separated from the air; an outlet part disposed so that the air from which the dust is separated is discharged from the cyclone chamber; and a grill that is rotatably disposed in the outlet part.Type: ApplicationFiled: October 27, 2015Publication date: September 29, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Dong Jin CHO
-
Publication number: 20160106282Abstract: A cleaner including a dust collection unit configured to separate dust from air through centrifugation is provided. The dust collection unit includes a dust collection case having an inlet through which air is introduced and an outlet through which the air is discharged, and a cyclone assembly located in the dust collection case to separate dust from the air introduced through the inlet. The cyclone assembly includes a dust separation housing having an inner space, configured to have a first introduction unit formed at a side surface thereof; and an air curtain generation member coupled to the dust separation housing at a lower part of the first introduction unit, configured to include an air curtain discharge unit arranged at one upper end thereof so that the air curtain discharge unit allows vertical airflow ascending along the first introduction unit to be discharged.Type: ApplicationFiled: October 9, 2015Publication date: April 21, 2016Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Dong Jin Cho
-
Publication number: 20150380142Abstract: The magnetic contactor, according to an exemplary embodiment, includes: a moving core including a main core disposed to be movable in a length direction thereof and first and second core plates disposed at both ends of the main core, respectively; a coil provided on the circumference of the main core; a fixed core disposed around the coil to form a magnetic path; and a permanent magnet disposed between the coil and the fixed core, wherein the first core plate is disposed outside the fixed core, the second core plate is disposed inside the fixed core, and the fixed core is provided with at least one protrusion to reduce a gap between the fixed core and the first or second core plate.Type: ApplicationFiled: June 25, 2015Publication date: December 31, 2015Inventors: Dong Jin Cho, Dong Kyu Shin, Young Myoung Yeon