Patents by Inventor Dong-hun Yoo

Dong-hun Yoo 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: 8671513
    Abstract: A nozzle assembly of a vacuum cleaner capable of easily separating spidery dirt, such as hair, fur of a pet and the like, from a surface to be cleaned is disclosed. The nozzle assembly includes a nozzle assembly body; a drum brush unit disposed in the nozzle assembly body, and having a drum brush disposed to brush away dirt or dust adhered to a surface to be cleaned while coming in rotation contact therewith; and a subsidiary brush unit disposed to one of the nozzle assembly body and the drum brush unit, and having a subsidiary brush to preliminarily brush away the dust or dirt adhered to the surface to be cleaned.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: March 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Hun Yoo, Yun Hee Park
  • Patent number: 8505160
    Abstract: A vacuum cleaner includes a cleaner body housing a cyclone dust separating unit therein, a dust receptacle removably mounted in the cyclone dust separating unit, a carrying handle movable at a front of the dust receptacle to protrude out or withdraw in, for carrying of the dust receptacle, and a lifting unit to move in accordance with the protruding or withdrawal of the carrying handle, so as to lock the dust receptacle with the cyclone dust separating unit when the carrying handle is withdrawn in the dust receptacle, and to unlock the dust receptacle from the cyclone dust separating unit when the carrying handle protrudes out of the dust receptacle.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: August 13, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-hun Yoo
  • Patent number: 8505157
    Abstract: A vacuum cleaner is provided that includes a cleaner body; a dust separating apparatus fixed to the cleaner body; a first dust receptacle detachably attached to the cleaner body on a bottom portion of the dust separating apparatus to collect large particle dust; a second dust receptacle detachably attached to the cleaner body on a bottom portion of the first dust receptacle to collect fine particle dust; and a locking device having a first position in which the dust separating apparatus is closely contacted to the first and second dust receptacles, and a second position in which the dust separating apparatus is spaced apart from the first and second dust receptacles at a predetermined interval. The second dust receptacle is detached from the first dust receptacle at the second position, and is detached from the cleaner body after the first dust receptacle is disengaged from the cleaner body.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: August 13, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-hee Cho, Dong-hun Yoo
  • Patent number: 8484797
    Abstract: A cleaner which removes dirt from an additional cleaning apparatus automatically is provided. The cleaner includes a cleaning apparatus which is removably mounted in the cleaner and is dismounted from the cleaner to perform an additional cleaning operation, and includes a housing to store dirt therein, an outlet through which the dirt stored in the housing is discharged, and a movable cover movable between a closing position to close the outlet and an opening position to open the outlet, a receiving unit for receiving the cleaning apparatus, a conversion unit for converting the movable cover of the cleaning apparatus from the closing position to the opening position, a suction unit for drawing in dirt from a cleaning surface along with air, and a dust-collector which is fluidly connected to the suction unit and the cleaning apparatus to separate dirt from air.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: July 16, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Hun Yoo
  • Patent number: 8468646
    Abstract: A vacuum cleaner for using both in an upright form and a canister form, which can stably support and store a cleaner body and at the same time, reduce a suction nozzle assembly in size, is disclosed. The vacuum cleaner includes a pivot unit formed to pivot a connection pipe disposed between an extended tube and a nozzle body of a suction nozzle assembly, on at least two points.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: June 25, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Hun Yoo
  • Patent number: 8308832
    Abstract: A dust separating and collecting apparatus is provided. The dust separating and collecting apparatus includes a dust bin housing a centrifugal dust separating portion therein, and an inner cover comprising a passage shifting protrusion extended to an open surface of the centrifugal dust separating portion through which dusts may be discharged, the inner cover covering an open surface of the dust bin.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: November 13, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-hun Yoo
  • Patent number: 8268029
    Abstract: A cyclone dust-collecting apparatus includes a body unit, a top portion of which is detachably engaged with a cover unit; a cyclone unit disposed inside the body; and a filter unit detachably disposed above the cyclone unit, wherein air flowing into the body unit is guided from the cyclone unit upward to the filter unit, and is discharged downward via the filter unit.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: September 18, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Hun Yoo
  • Publication number: 20120222223
    Abstract: Described is an auxiliary cleaning tool assembly of a cleaning apparatus, the auxiliary cleaning tool assembly including a body part connected to a house and having at least one passage, a brush unit rotatably provided on the body part, a nozzle part configured to remove dust attached on the brush unit, and a power transferring part configured to convert an air flow of air passing through the at least one passage of the body part to a rotary force of the brush unit.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 6, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Dong Hun YOO
  • Patent number: 8250704
    Abstract: A suction nozzle assembly for a vacuum cleaner is provided. The suction nozzle assembly includes a suction nozzle assembly body, a hair collecting unit that is disposed on the suction nozzle assembly body, and an elevating unit for raising and lowering the hair collecting unit, wherein if the front of the suction nozzle assembly body contacts a wall, the elevating unit raises the hair collecting unit, and if the suction nozzle assembly body is separated from the wall, the elevating unit lowers down the hair collecting unit to a previous position.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-hun Yoo
  • Patent number: 8191203
    Abstract: A dust receptacle having a receptacle body that may be attached to and detached from a cleaner body is disclosed. The dust receptacle includes the bottom of which is opened; a handle, which is disposed on the receptacle body in a longitudinal direction; an exhaust cover, an end of which is hinged with a lower end of the handle, and which is used to expose a bottom of the receptacle body; and an operating lever that locks or unlocks the exhaust cover.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: June 5, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-hun Yoo
  • Patent number: 8032981
    Abstract: A vacuum cleaner includes a brush assembly that travels along a cleaning surface and draws in dirt-entrained air therethrough, a cleaner body that is connected to the brush assembly and has a dust collector, a fixing unit that detachably mounts the cleaner body onto the brush assembly such that the vacuum cleaner is used as an upright type vacuum cleaner and dismounts the cleaner body from the brush assembly such that the vacuum cleaner is used as a canister type vacuum cleaner, and a regulation unit that restricts a horizontal rotation of the brush assembly if the cleaner body is mounted onto the brush assembly.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-hun Yoo
  • Patent number: 8011061
    Abstract: A nozzle assembly of a vacuum cleaner is disclosed. The A nozzle assembly includes a main casing having an air inlet formed thereto to draw in dust or dirt from a surface to be cleaned, a drum brush disposed in the main casing to brush away the dust or dirt adhered to the surface while rotating in contact with the surface, and a subsidiary brush unit disposed in front of the main casing to preliminarily brush away the dust or dirt adhered to the surface in front of the drum brush, and having a cover disposed in front of the main casing, and a subsidiary brush member to come in elastic contact with the surface. The subsidiary brush member is configured to change a relative position to the cover, and thus to selectively maintain a contact state or a non-contact state to the surface.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: September 6, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Hun Yoo
  • Publication number: 20110191978
    Abstract: A cleaner which removes dirt from an additional cleaning apparatus automatically is provided. The cleaner includes a cleaning apparatus which is removably mounted in the cleaner and is dismounted from the cleaner to perform an additional cleaning operation, and includes a housing to store dirt therein, an outlet through which the dirt stored in the housing is discharged, and a movable cover movable between a closing position to close the outlet and an opening position to open the outlet, a receiving unit for receiving the cleaning apparatus, a conversion unit for converting the movable cover of the cleaning apparatus from the closing position to the opening position, a suction unit for drawing in dirt from a cleaning surface along with air, and a dust-collector which is fluidly connected to the suction unit and the cleaning apparatus to separate dirt from air.
    Type: Application
    Filed: August 31, 2010
    Publication date: August 11, 2011
    Inventor: Dong-Hun Yoo
  • Patent number: 7979953
    Abstract: A vacuum cleaner that is convertible between an upright mode and a canister mode by use of a hose is provided. The vacuum cleaner includes a hose clamping unit capable of protruding outside the cleaner body or retreating back to the cleaner body according to a mode change of the vacuum cleaner.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: July 19, 2011
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Dong-hun Yoo
  • Patent number: 7981181
    Abstract: A cyclone dust-separating apparatus that may be conveniently maintained and repaired is disclosed. The cyclone dust-separating apparatus includes a cyclone chamber that separates dust using a whirling air current about a horizontal rotating axis, and a first cover that is detachably attached to an end of the cyclone chamber to expose the cyclone chamber. The first cover can be detached, so the cyclone dust-separating apparatus may be conveniently maintained and repaired.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: July 19, 2011
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Dong-hun Yoo
  • Patent number: 7950104
    Abstract: A vacuum cleaner is disclosed that includes a dust-separating apparatus, a shutter unit, and a dust receptacle. The dust-separating apparatus can be fixed to a cleaner body and includes a dust outlet. The shutter unit is formed on the dust-separating apparatus to selectively open and close the dust outlet. The dust receptacle is detachably attached to a lower portion of the dust-separating apparatus. The dust receptacle opens the shutter unit when attached to the dust-separating apparatus and closes the shutter unit when detached from the dust-separating apparatus.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: May 31, 2011
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Dong-hun Yoo
  • Patent number: 7937802
    Abstract: A vacuum cleaner for use in both an upright form and a canister form, which can mount and dismount a cleaner body to and from a suction nozzle assembly is disclosed. The vacuum cleaner includes a suction nozzle assembly to draw in dust or dirt along with air while moving along a surface to be cleaned; a cleaner body having a dust separating unit to separate and collect the dust or dirt from the air drawn in from the surface to be cleaned; a supporting unit hingedly joined to the suction nozzle assembly to support a lower part of the cleaner body to communicate with the suction nozzle assembly; and a locking unit to detachably lock the lower part of the cleaner body to the supporting unit.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: May 10, 2011
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventors: Dong-hun Yoo, Jeong-hee Cho, Myoung-sun Choung, Yun-hee Park, Il-du Jung
  • Patent number: 7934286
    Abstract: An upright vacuum cleaner that includes a suction assembly, a cleaner body, a supporting member, and mounting parts. The cleaner body has a dust collecting unit which is in communication with the suction assembly. The supporting member is formed as a single frame with a lower end hinged to the suction assembly. The cleaner body is detachable from a front surface of the supporting member. A width of the supporting member is narrower than the cleaner body. The mounting parts are formed on a rear surface of the supporting member and are provided in a longitudinal direction with respect to the supporting member. The mounting parts are also shaped to mount accessories.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: May 3, 2011
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventors: Dong-hun Yoo, Ji-ho Seo
  • Patent number: 7930797
    Abstract: A suction brush assembly for a vacuum cleaner capable of automatic height adjustment according to the present disclosure includes a suction brush body connected to a cleaner body at a rear side thereof and provided with a rotation brush for striking a surface to be cleaned to separate dirt from the surface to be cleaned at a bottom surface thereof; and an up/down adjusting unit for monitoring continuously a state of the surface to be cleaned and adjusting a height of the rotation brush body to vary a distance between the surface to be cleaned and the rotation brush according to the state of the surface to be cleaned so as to prevent the surface to be cleaned from being damaged by the rotating rotation brush.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: April 26, 2011
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Dong-hun Yoo
  • Patent number: 7926143
    Abstract: A vacuum cleaner is provided which includes a cleaner body in which a ultraviolet (UV) irradiation unit is mounted in a dust receptacle mounting unit, a dust receptacle detachably mounted in the dust receptacle mounting unit, the dust receptacle comprising a UV transmission window formed in a position facing the UV irradiation unit, and a switching device mounted in the dust receptacle mounting unit to switch power applied to the UV irradiation unit according to whether the dust receptacle is mounted. Accordingly, power is applied to a UV lamp only when the dust receptacle is mounted in the vacuum cleaner, so there is no risk that a user is exposed to UV rays emitted from the UV lamp when the user separates the dust receptacle from the vacuum cleaner.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: April 19, 2011
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventor: Dong-hun Yoo