Patents by Inventor Bo-Seob Cho

Bo-Seob 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: 7654430
    Abstract: A coil nailing device for finishing materials is invented that comprises a standby part for temporarily retaining and loading the nails into a muzzle. A door is installed adjacent to the standby part to check the nail supply. A door latch consists of a hook, coil spring and latch hinge shaft. The door and door latch are operated in the lateral direction, perpendicular to the axis of the main body. The muzzle consists of an adapter, lever arm and a pair of arc-shaped sliding grooves formed on both lateral surfaces. The adapter is attachable to the nose of the main body. A clearance setting device is designed to allow the use of various sizes of nails by setting the depth of the magazine depending on the loaded nail size. An interval setting device is convenient to nail a series of shingle panels by setting the panel interval while the coil nailing device is sliding along the edge of the panels.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: February 2, 2010
    Assignee: Jeil Tacker Co. Ltd.
    Inventors: Bo-Seob Cho, Gil-Sub Song, Jae Sung Kim, In Sung Hwang, Myung-Kyun Kim, Sang Chun Lee, Jong-Yeol Han
  • Publication number: 20090108047
    Abstract: A jam-resistant tacker apparatus is invented, comprising a slit for engagement with an upper pin at the upper ends of a plurality of pin guides mounted to a magazine cover and forming a seating recess for receiving the upper pin at a predetermined position of the magazine so that the forward and backward movement range of the pin guides is increased, and by providing a spring having less elasticity than the spring of a pusher at the upper rear ends of the plurality of pin guides so that a tacker pin and the pusher can be guided while remaining in close contact. The present tacker apparatus is able to prevent of the problem of jammed tacker pins, by applying a horizontal elasticity for stably guiding the tacker pin horizontally in addition to an upward elasticity for moving the tacker pin upward.
    Type: Application
    Filed: December 26, 2007
    Publication date: April 30, 2009
    Inventors: Bo-Seob Cho, Jong-Yeol Han
  • Patent number: 7520413
    Abstract: A jam-resistant tacker apparatus is invented, comprising a slit for engagement with an upper pin at the upper ends of a plurality of pin guides mounted to a magazine cover and forming a seating recess for receiving the upper pin at a predetermined position of the magazine so that the forward and backward movement range of the pin guides is increased, and by providing a spring having less elasticity than the spring of a pusher at the upper rear ends of the plurality of pin guides so that a tacker pin and the pusher can be guided while remaining in close contact. The present tacker apparatus is able to prevent of the problem of jammed tacker pins, by applying a horizontal elasticity for stably guiding the tacker pin horizontally in addition to an upward elasticity for moving the tacker pin upward.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: April 21, 2009
    Assignee: Jeil Tacker Co., Ltd.
    Inventors: Bo-Seob Cho, Jong-Yeol Han
  • Patent number: 7389901
    Abstract: Disclosed herein is a nailer having an improved safety device. With the improved safety device, a movable plate, which is adapted to slidably move along a lower surface of a guiding unit, is formed, at a certain location thereof, with an insertion hole for the insertion of a protrusion formed at a trigger. Thereby, if the trigger is pulled in a pressed state of the movable plate, a nailing operation is accomplished. Also, in the course of pulling the trigger, the movable plate can be further inserted rearward by a predetermined distance under interaction of the insertion hole and protrusion. This has the effect of eliminating the risk of causing scratches on a nailing surface of a target structure even if the movable plate is moved while coming into close contact, at a front end thereof, with the nailing surface, resulting in several advantages, such as for example, easy nailing operation, operator's convenient working posture, and rapid and safe nailing operation.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: June 24, 2008
    Assignee: Jeil Tacker Co., Ltd
    Inventors: Bo-Seob Cho, Jong-Yeol Han, Jin-Won Kim
  • Publication number: 20080110956
    Abstract: A coil nailing device for finishing materials is invented that comprises a standby part for temporarily retaining and loading the nails into a muzzle. A door is installed adjacent to the standby part to check the nail supply. A door latch consists of a hook, coil spring and latch hinge shaft. The door and door latch are operated in the lateral direction, perpendicular to the axis of the main body. The muzzle consists of an adapter, lever arm and a pair of arc-shaped sliding grooves formed on both lateral surfaces. The adapter is attachable to the nose of the main body. A clearance setting device is designed to allow the use of various sizes of nails by setting the depth of the magazine depending on the loaded nail size. An interval setting device is convenient to nail a series of shingle panels by setting the panel interval while the coil nailing device is sliding along the edge of the panels.
    Type: Application
    Filed: January 10, 2008
    Publication date: May 15, 2008
    Inventors: Bo-Seob Cho, Gil-Sub Song, Jae Kim, In Hwang, Myung-Kyun Kim, Sang Lee, Jong-Yeol Han
  • Publication number: 20080073403
    Abstract: Disclosed herein is a nailer having an improved safety device. With the improved safety device, a movable plate, which is adapted to slidably move along a lower surface of a guiding unit, is formed, at a certain location thereof, with an insertion hole for the insertion of a protrusion formed at a trigger. Thereby, if the trigger is pulled in a pressed state of the movable plate, a nailing operation is accomplished. Also, in the course of pulling the trigger, the movable plate can be further inserted rearward by a predetermined distance under interaction of the insertion hole and protrusion. This has the effect of eliminating the risk of causing scratches on a nailing surface of a target structure even if the movable plate is moved while coming into close contact, at a front end thereof, with the nailing surface, resulting in several advantages, such as for example, easy nailing operation, operator's convenient working posture, and rapid and safe nailing operation.
    Type: Application
    Filed: March 7, 2007
    Publication date: March 27, 2008
    Inventors: Bo-Seob Cho, Jong-Yeol Han, Jin-Won Kim
  • Publication number: 20070090148
    Abstract: A coil nailer aligns the releasing direction of a door latch with the door opening and closing direction such that a door latch is released to open the door by one touch of a left hand thumb, a contact arm is easily coupled with and separated from a contactor to prevent the contact arm from separating from the contactor and to easily exchange the contactor, a guide device in a magazine filled with various sized nails is moved to precisely guide the nails, and a measuring device measuring intervals between shingles is attached to the magazine such that the shingles are positioned at predetermined intervals without a separate measuring device. Since the plate supporting nails is lowered or lifted according to lengths of the nails, the nails can be effectively guided, the interval between lower and upper waterproof sheets can be measured when attaching shingles and waterproof sheets.
    Type: Application
    Filed: October 20, 2005
    Publication date: April 26, 2007
    Inventors: Bo-Seob Cho, Gil-Sub Song, Jae-Sung Kim, In-Sung Hwang, Myung-Kyun Kim, Sang-Chun Lee, Jong-Yeol Han