Patents by Inventor BooSeok Hwang
BooSeok Hwang 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).
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Patent number: 8784084Abstract: A cam ring fluid machine, a rotary cam ring fluid machine has a casing, a flange in the casing, a stator in the casing, a rotor cam ring in the stator, a fixed axis in the rotor cam ring, and a vane in the vane groove of the fixed axis. A fluid chamber is formed with the inner circumferential surface of the rotor cam ring, the outer circumferential surface of the fixed axis, the vane, and the flange. When the rotor cam ring rotates, the volume of the fluid chamber increases or decreases.Type: GrantFiled: November 24, 2012Date of Patent: July 22, 2014Assignees: RichStone Limited, RichStone LimitedInventors: KwangSeon Hwang, BooSeok Hwang
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Publication number: 20140170009Abstract: An orbiting scroll having three sets of wraps is combined on a fixed scroll having three sets of wraps integral to a frame facing each other. The orbiting scroll is adhered on the fixed scroll by the discharge pressure acted to a part of the backside of the orbiting scroll. The orbiting scroll is finely movable to the radial direction and the wraps of the both scrolls contact each other. Thereby it provides a scroll liquid pump that increases the pressure and carries the liquid refrigerant or oil.Type: ApplicationFiled: November 23, 2013Publication date: June 19, 2014Applicant: RichStone LimitedInventors: BooSeok HWANG, KwangSeon HWANG
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Patent number: 8585383Abstract: In a scroll fluid machine where an orbiting scroll fixed to a pivot shaft eccentrically revolves, a fixed portion is provided on a bottom of a casing, and a swing column is provided between the fixed portion and the orbiting scroll or between the fixed portion and the pivot shaft. The fixed portion withstands the thrust load of the orbiting scroll, which has been transferred by the swing column.Type: GrantFiled: November 5, 2010Date of Patent: November 19, 2013Assignees: RichStone Limited, RichStone LimitedInventors: BooSeok Hwang, KwangSeon Hwang
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Publication number: 20130236344Abstract: An orbiting scroll 1 having a warp and a pair of fixed scrolls 2, 3 having a wrap are combined; a hollow orbiting shaft 1D is provided at the center part of the orbiting scroll 1; a rotating shaft 6 passes through the hollow portion 1E of the orbiting shaft 1D; a pair of covers 7, 9 is provided on the outer surface side of the fixed scroll 2, 3; the rotating shaft 6 is rotatably supported by covers 7, 9; orbiting bearings 12, 14 are provided on both ends of the orbiting shaft 1D; the orbiting bearings 12, 14 fit eccentric portions 6A, 6B provided on the rotating shaft 6; and a self-rotation prevention mechanism for the orbiting scroll 1 is provided at one end of the orbiting shaft 1D.Type: ApplicationFiled: March 9, 2012Publication date: September 12, 2013Inventors: BooSeok Hwang, KwangSeon Hwang
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Patent number: 8371834Abstract: An anti-self rotation mechanism for preventing self-rotation of the eccentric shaft includes a long orbiting key formed at an end of the eccentric shaft, a ring formed of a long hole through which the orbiting key slides, ring keys that extend toward both outer sides in the direction orthogonal to the longitudinal direction of the hole, and two key grooves formed in the casing, through which the ring keys slide.Type: GrantFiled: June 2, 2009Date of Patent: February 12, 2013Assignees: RichStone Limited, RichStone LimitedInventor: Booseok Hwang
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Publication number: 20110300013Abstract: In the scroll fluid machine in which an orbiting scroll 10 is pivot-driven by a rotary shaft 102 rotatably supported by the casing 100 and a pivot shaft 104 eccentrically and rotatably supported by the rotary shaft 102, as a method, a self-rotation prevention board 109 is attached to one end of the pivot shaft 104 and a self-rotation prevention pin 110 is attached to the self-rotation prevention board 109. The self-rotation prevention pin 110 is configured to perform an orbiting motion while keeping in contact with the inner surface of the self-rotation prevention bearing (guide body) 111. Further, as another method, the outer periphery of one end 104b of the pivot shaft is configure to perform an orbiting motion while keeping in contact with the inner surface of the balance bearing (guide body) 51. Based on these methods, an eccentrically pivot driven orbiting scroll performs an orbiting motion without whirling, and thus a high-speed operation of the scroll fluid machine is enabled.Type: ApplicationFiled: June 21, 2011Publication date: December 8, 2011Inventors: BooSeok Hwang, KwangSeon Hwang
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Publication number: 20110123324Abstract: In a scroll fluid machine where an orbiting scroll fixed to a pivot shaft eccentrically revolves, a fixed portion is provided on a bottom of a casing, and a swing column is provided between the fixed portion and the orbiting scroll or between the fixed portion and the pivot shaft. The fixed portion withstands the thrust load of the orbiting scroll, which has been transferred by the swing column.Type: ApplicationFiled: November 5, 2010Publication date: May 26, 2011Applicants: RichStone Limited, RichStone LimitedInventors: BooSeok Hwang, KwangSeon Hwang
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Publication number: 20110103991Abstract: A fixed scroll board 2 is attached to a casing 1. Three fixed wraps 2a are provided on the fixed scroll board 2. An eccentric bush 8 is rotatably supported by the casing 1. A pivot shaft 12 is eccentrically supported in an eccentric hole of the eccentric bush 8. A scroll board 3 with three orbiting wraps 3a is provided integrally with the pivot shaft 12. A plurality of pumping chambers 13 are formed between the fixed wraps 2a and the orbiting wraps 3a. An inlet port 4, which is communicated with an intake chamber formed inside a seal wall 2b of the periphery of the fixed scroll board 2, is provided. An outlet port 5 is provided on the fixed scroll board 2. The pumping chambers 13 takes in and discharges working fluid three times during one rotation of the eccentric bush 8.Type: ApplicationFiled: January 14, 2011Publication date: May 5, 2011Inventors: BooSeok Hwang, KwangSeon Hwang
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Publication number: 20090297381Abstract: An anti-self rotation mechanism for preventing self-rotation of the eccentric shaft includes a long orbiting key formed at an end of the eccentric shaft, a ring formed of a long hole through which the orbiting key slides, ring keys that extend toward both outer sides in the direction orthogonal to the longitudinal direction of the hole, and two key grooves formed in the casing, through which the ring keys slide.Type: ApplicationFiled: June 2, 2009Publication date: December 3, 2009Applicants: RICHSTONE LIMITED, RICHSTONE LIMITEDInventor: Booseok Hwang
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Patent number: 6942399Abstract: An optical fiber coupler reinforcing member comprises an approximately rectangular member formed by a hard material, and has a flat surface along the longitudinal direction thereof. In addition, the shape thereof in cross-section is a hexagonal shape which inscribes a cylindrical member. Furthermore, a recess having a U-shaped cross-section is formed in the longitudinal direction of the above-mentioned approximately rectangular member and houses coupling section. The coupling section housed within the recess is fixed at both ends of the recess by an adhesive or the like. In addition, both ends of the inner wall surface of the recess have been given bevel sections. As a result, the optical fiber coupler reinforcing member having high reliability at low cost, with which the strength with respect to external force is improved and with which processability and the assembly operations of the optical fiber coupler are easy, are provided.Type: GrantFiled: June 26, 2003Date of Patent: September 13, 2005Assignees: Yamaha Corporation, Richstone LimitedInventors: Nanayuki Takeuchi, Toshiharu Hoshi, Kenzaburou Iijima, Hidetoshi Yasutake, Yoshikazu Ishii, Satoru Tomaru, BooSeok Hwang
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Patent number: 6779931Abstract: It is an object of the present invention to enable quick, easy, and inexpensive connections even in a narrow area using an inexpensive device and an inexpensive optical fiber connecting element, thereby achieving high operability and high durability reliability. An optical fiber connecting element includes an optical alignment sleeve having tapered insertion ports formed at opposite ends thereof and having an ejection port opened in an area in which the two optical fibers inserted through the insertion ports are butted against each other, a cyanoacrylate-type glue injected into the insertion ports and the injection port to fix the two optical fibers, and a heat-shrinkable tube wrapped around the optical alignment sleeve and two optical fiber coatings and having a hot-melt adhesive provided therein.Type: GrantFiled: November 4, 2002Date of Patent: August 24, 2004Assignees: NIT Advanced Technology Corporation of Tokyo, Telecom Assist Corporation of Chiba, Richstone Limited of Tokyo, Ishihara Techno Co., Ltd. of NaganoInventors: Norio Murata, Satoru Tomaru, Mitsunori Sato, Yoshikazu Ishii, Nobukazu Murata, BooSeok Hwang, Haruo Ishihara
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Publication number: 20040071415Abstract: An optical fiber coupler reinforcing member comprises an approximately rectangular member formed by a hard material, and has a flat surface along the longitudinal direction thereof. In addition, the shape thereof in cross-section is a hexagonal shape which inscribes a cylindrical member. Furthermore, a recess having a U-shaped cross-section is formed in the longitudinal direction of the above-mentioned approximately rectangular member and houses coupling section. The coupling section housed within the recess is fixed at both ends of the recess by an adhesive or the like. In addition, both ends of the inner wall surface of the recess have been given bevel sections. As a result, the optical fiber coupler reinforcing member having high reliability at low cost, with which the strength with respect to external force is improved and with which processability and the assembly operations of the optical fiber coupler are easy, are provided.Type: ApplicationFiled: June 26, 2003Publication date: April 15, 2004Inventors: Nanayuki Takeuchi, Toshiharu Hoshi, Kenzaburou Iijima, Hidetoshi Yasutake, Yoshikazu Ishii, Satoru Tomaru, BooSeok Hwang
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Publication number: 20030091293Abstract: It is an object of the present invention to enable quick, easy, and inexpensive connections even in a narrow area using an inexpensive device and an inexpensive optical fiber connecting element, thereby achieving high operability and high durability reliability. An optical fiber connecting element includes an optical alignment sleeve having tapered insertion ports formed at opposite ends thereof and having an ejection port opened in an area in which the two optical fibers inserted through the insertion ports are butted against each other, a cyanoacrylate-type glue injected into the insertion ports and the injection port to fix the two optical fibers, and a heat-shrinkable tube wrapped around the optical alignment sleeve and two optical fiber coatings and having a hot-melt adhesive provided therein.Type: ApplicationFiled: November 4, 2002Publication date: May 15, 2003Inventors: Norio Murata, Satoru Tomaru, Mitsunori Sato, Yoshikazu Ishii, Nobukazu Murata, BooSeok Hwang, Haruo Ishihara