Patents by Inventor Ko-Ming Cheng
Ko-Ming Cheng 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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Publication number: 20200208437Abstract: A magnetic locking device has a magnetic latch device mounted in a door panel and an engagement device mounted in a door frame. The magnetic latch device has a magnetic latch assembly and a locking mechanism which are mounted in a housing of the magnetic latch device. The magnetic latch assembly has a latch bolt, restoring springs providing a restoring force to the latch bolt, and a magnetized element mounted in a latch portion of the latch bolt which is protrudable from the housing. The engagement device has a magnetic attracting assembly mounted in a latching seat of the engagement device. The magnetic attracting assembly can attract the magnetized element to move into the latching seat and to attach to the magnetic attracting assembly. The latch bolt will not bump to the engagement device while the door is closing.Type: ApplicationFiled: December 28, 2018Publication date: July 2, 2020Applicant: GANG GWO INDUSTRIAL CO., LTD.Inventor: Ko-Ming CHENG
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Patent number: 9074399Abstract: A hydraulic hinge for a glass door has a fixing plate, a rotating seat, a pivot and a buffer module. The rotating seat is combined with the fixing plate and has a first oil passage and a second oil passage. The pivot is combined with the fixing plate and the rotating seat. The buffer module is mounted in the rotating seat and has a valve having a circular groove selectively communicating with the second oil passage. A glass door can be pivoted relative to the rotating seat. The valve is structurally simple, thereby simplifying the manufacturing process. With the valve and the second oil passage, the velocity of closing the glass door gradually increases from low speed to high speed.Type: GrantFiled: May 30, 2013Date of Patent: July 7, 2015Assignee: GANG GWO INDUSTRIAL CO., LTD.Inventor: Ko-Ming Cheng
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Publication number: 20140352108Abstract: A hydraulic hinge for a glass door has a fixing plate, a rotating seat, a pivot and a buffer module. The rotating seat is combined with the fixing plate and has a first oil passage and a second oil passage. The pivot is combined with the fixing plate and the rotating seat. The buffer module is mounted in the rotating seat and has a valve having a circular groove selectively communicating with the second oil passage. A glass door can be pivoted relative to the rotating seat. The valve is structurally simple, thereby simplifying the manufacturing process. With the valve and the second oil passage, the velocity of closing the glass door gradually increases from low speed to high speed.Type: ApplicationFiled: May 30, 2013Publication date: December 4, 2014Inventor: Ko-Ming CHENG
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Patent number: 8720005Abstract: A hydraulic hinge for a glass door has a fixing plate, a base, a pivot, a buffer module, and a clamping module. The base is combined with the fixing plate and has an oil passage. The oil passage is formed in the base. The pivot is rotatably mounted in the base and has an adjusting space communicating with the oil passage. The oil passage and the adjusting space are filled with oil. The buffer module is mounted in the base and has a sliding tube abutting the pivot. The clamping module is pivotally mounted on the pivot and can clamp a glass door. The glass door can be pivoted relative to the base. With the buffer module and the oil in the oil passage, the glass door can be closed in a smooth movement.Type: GrantFiled: December 14, 2012Date of Patent: May 13, 2014Assignee: Gang Gwo Industrial Co., Ltd.Inventor: Ko-Ming Cheng
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Publication number: 20120079682Abstract: An adjustable hinge assembly for a glass door has a frame fastening device, a door clamping device and an adjustable device. The frame fastening device is mounted securely to a doorframe and has two pivot sections protruding from the frame fastening device. The door clamping device clamps a glass door. The adjustable device has two pins mounted between and respectively pressing against the pivot sections. Because two pins respectively press against the pivot sections, pressing forces provided by the pins are sufficient and the structure of the adjustable hinge assembly for a glass door is enhanced. Accordingly, to frequently adjust the position of the glass door relative to the doorframe is unnecessary.Type: ApplicationFiled: October 1, 2010Publication date: April 5, 2012Inventor: Ko-Ming CHENG
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Patent number: 7188390Abstract: An adjustable hinge is mounted on a doorframe, holds a glass door and has a stationary bracket and a clamp assembly. The stationary bracket is mounted securely on the doorframe and has a sliding actuator. The clamp assembly is mounted rotatably on the stationary bracket and has a first clamp assembly and a second clamp securely holding the glass door and two pairs of pivot pin clamp bolts. The first clamp assembly has a body, a pivot pin mounted rotatably through the stationary bracket and two pivot pin clamps securely holding the body on the pivot pin. The pivot pin clamp bolts securely hold the pivot pin clamps on the body of the first clamp assembly. The glass door is aligned with the doorframe by releasing the pivot pin clamp bolts and loosing the pivot pin clamps to align the sliding actuator and the pivot pin.Type: GrantFiled: March 15, 2005Date of Patent: March 13, 2007Inventor: Ko-Ming Cheng
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Publication number: 20060207060Abstract: An adjustable hinge is mounted on a doorframe, holds a glass door and has a stationary bracket and a clamp assembly. The stationary bracket is mounted securely on the doorframe and has a sliding actuator. The clamp assembly is mounted rotatably on the stationary bracket and has a first clamp assembly and a second clamp securely holding the glass door and two pairs of pivot pin clamp bolts. The first clamp assembly has a body, a pivot pin mounted rotatably through the stationary bracket and two pivot pin clamps securely holding the body on the pivot pin. The pivot pin clamp bolts securely hold the pivot pin clamps on the body of the first clamp assembly. The glass door is aligned with the doorframe by releasing the pivot pin clamp bolts and loosing the pivot pin clamps to align the sliding actuator and the pivot pin.Type: ApplicationFiled: March 15, 2005Publication date: September 21, 2006Inventor: Ko-Ming Cheng
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Patent number: 6883357Abstract: An indicating lock for a rimless glass door is composed of a seat assembly, a driving member, a latching member, an indicating ring, and a clamping member. The seat assembly has an interior seat and an exterior seat. The driving member has an interior disk and an exterior disk. Multiple magnetic elements are installed in the interior disk and the exterior disk with opposite polarities. By using the magnetic force, the indicating lock can be securely and easily installed on a rimless glass door without cutting the glass of the door. An indicating ring is provided between the exterior disk and the exterior seat. Those outside the door can conveniently know whether the door is locked by observing the indicating ring.Type: GrantFiled: December 23, 2003Date of Patent: April 26, 2005Assignee: Gang GWO Industrial Co., Ltd.Inventor: Ko-Ming Cheng
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Patent number: 6766561Abstract: A frameless glass door hinge has a mounting device, an internal doorstop, an angle adjustment device and a hinge assembly. The adjusting device has a setscrew, an adjustment block and a lock with a striated front surface. The internal doorstop has coil springs, two holders, a stop rod with a central portion and a head. The head has detents and a striated surface. The hinge body has a right hinge leaf, a left hinge leaf and two rubber seals. The mounting device has a doorstop bracket, a bracket leaf and a central hinge pin. The doorstop bracket is mounted on the bracket leaf, and the head is mounted in doorstop bracket by a bushing and the central hinge pin. The central portion of the stop rod abuts a detent in the head, and the stop rod is securely mounted in the right hinge leaf.Type: GrantFiled: March 28, 2003Date of Patent: July 27, 2004Inventor: Ko-Ming Cheng
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Patent number: 6519811Abstract: A pivot hinge assembly for a glass structure includes a central shaft adapted to be securely mounted on the doorframe, a driving housing having an axial passage extending through the driving housing to receive therein the central shaft and a radial passage defined to extend through the driving housing and intercept the axial passage. Two pivoting devices are respectively and oppositely received in the radial passage. Each pivoting device is spaced away from one another by the central shaft. A support has a U shaped seat formed to securely receive therein the driving housing and the two pivoting devices. A piece of glass of the pivot door is able to drive the two pivoting devices to pivot relative to the central shaft so as to facilitate the smoothness of pivotable movement of the pivot door.Type: GrantFiled: April 9, 2002Date of Patent: February 18, 2003Inventor: Ko-Ming Cheng
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Patent number: 6481055Abstract: A pivotal device comprises a fixing plate fixed to a wall, a box securely attached to the fixing plate and including a horizontal space and a vertical space communicated with the horizontal space, and a follower slidably mounted in the horizontal space. Two stubs project from a side of the follower. A spring is mounted around each stub and has an end attached to the fixing plate. A first outer plate and a second outer plate are secured together, sandwich the box, and are pivotable relative to the box. A pivot pin is pivotally mounted in the vertical space of the box. A mediate portion of the pivot pin includes two opposite flat surfaces and two opposite arcuate surfaces. A gasket is securely sandwiched between the first outer plate and the second outer plate to move therewith. The gasket includes a portion for securely engage with an edge of a frameless glass door.Type: GrantFiled: April 10, 2001Date of Patent: November 19, 2002Inventor: Ko Ming Cheng
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Publication number: 20020144377Abstract: A pivotal device comprises a fixing plate fixed to a wall, a box securely attached to the fixing plate and including a horizontal space and a vertical space communicated with the horizontal space, and a follower slidably mounted in the horizontal space. Two stubs project from a side of the follower. A spring is mounted around each stub and has an end attached to the fixing plate. A first outer plate and a second outer plate are secured together, sandwich the box, and are pivotable relative to the box. A pivot pin is pivotally mounted in the vertical space of the box. A mediate portion of the pivot pin includes two opposite flat surfaces and two opposite arcuate surfaces. A gasket is securely sandwiched between the first outer plate and the second outer plate to move therewith. The gasket includes a portion for securely engage with an edge of a frameless glass door.Type: ApplicationFiled: April 10, 2001Publication date: October 10, 2002Inventor: Ko Ming Cheng
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Patent number: D488047Type: GrantFiled: March 28, 2003Date of Patent: April 6, 2004Inventor: Ko-Ming Cheng