Patents by Inventor Cheng-Chung Liu
Cheng-Chung Liu 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: 11937370Abstract: A base material is provided. A first patterned circuit layer and a second patterned circuit layer are formed on a first surface and a second surface of the base material. A first insulation layer and a metal reflection layer are provided on the first patterned circuit layer and a portion of the first surface exposed by the first patterned circuit layer, wherein the metal reflection layer covers the first insulation layer, and a reflectance of the metal reflection layer is substantially greater than or equal to 85%, there is no conductive material between the first patterned circuit layer and the metal reflection layer. A first ink layer is formed on the first insulation layer before the metal reflection layer is formed.Type: GrantFiled: September 1, 2021Date of Patent: March 19, 2024Assignee: UNIFLEX Technology Inc.Inventors: Cheng-I Tu, Ying-Hsing Chen, Meng-Huan Chia, Hsin-Ching Su, Yi-Chun Liu, Cheng-Chung Lai, Yuan-Chih Lee
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Patent number: 8881562Abstract: A mortise lock is provided with a reinforcing plate to enhance structural rigidity and robustness for resistance against external destructive pulling forces. The reinforcing plate is disposed in abutment with an exterior cover and a door panel, and is mounted on a mounting post of the exterior cover. The reinforcing plate has a notch to receive and engage a key lock. A securing plate may be disposed between and in abutment with the door panel and a main body of a torsional returning unit which is connected to an exterior handle to further increase structural rigidity.Type: GrantFiled: June 29, 2012Date of Patent: November 11, 2014Assignee: Stanley Security Solutions Taiwan LtdInventors: Tsung-Chung Huang, Cheng-Chung Liu, Wei-Liang Chiang, Ju-Lin Yang, Song-Gen Shyu, Ching-Chuan Kuo
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Publication number: 20130000364Abstract: A mortise lock is provided with a reinforcing plate to enhance structural rigidity and robustness for resistance against external destructive pulling forces. The reinforcing plate is disposed in abutment with an exterior cover and a door panel, and is mounted on a mounting post of the exterior cover. The reinforcing plate has a notch to receive and engage a key lock. A securing plate may be disposed between and in abutment with the door panel and a main body of a torsional returning unit which is connected to an exterior handle to further increase structural rigidity.Type: ApplicationFiled: June 29, 2012Publication date: January 3, 2013Inventors: Tsung-Chung HUANG, Cheng-Chung LIU, Wei-Liang CHIANG, Ju-Lin YANG, Song-Gen SHYU, Ching-Chuan KUO
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Patent number: 8316676Abstract: A re-keyable cylinder lock has a control member to permit or restrict transverse movement of a re-keying unit. The control member is movable axially between first and second positions and transversely to a third position from the second position. In the third position, the re-keying unit moves transversely and disengages from first tumbler pieces. A limit member is provided to prevent the control member from moving axially when no right key is inserted into a plug. A security arm is connected to the control member and is breakable so that destructive forces cannot reach the control member.Type: GrantFiled: August 27, 2009Date of Patent: November 27, 2012Assignee: Tong Lung Metal Industry Co., Ltd.Inventors: Wei-Liang Chiang, Ju-Lin Yang, Cheng-Chung Liu, Kun-Chen Lee, Song-Gen Shyu, Ching-Chuan Kuo
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Patent number: 8182005Abstract: A cylinder lock includes a shell that has an enlarged tubular section, and a constricted tubular section. A retractor case that contains a latch retractor for retracting a latch is disposed within the enlarged tubular section. An inner surface of the enlarged tubular section is provided with an interlocking unit that interlocks with the retractor case to prevent relative rotational movements of the retractor case and the shell. In an embodiment, the retractor case has at least one tongue extending radially between a pair of annularly spaced apart interlocking elements of the interlocking unit.Type: GrantFiled: March 20, 2008Date of Patent: May 22, 2012Assignee: Tong Lung Metal Industry Co., Ltd.Inventors: Cheng-Chung Liu, Lan-Kun Don
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Patent number: 8182006Abstract: A cylinder lock includes an outer rose disc having a middle opening, two locking holes, and an annular lateral rim formed with opposite engagement elements, a reinforcement structure having a first plate section that has a central hole aligned with the middle opening, and two passage holes aligned with the respective locking holes, two second plate sections extending transversely from two opposite ends of the first plate section, and two support sections respectively extending from the second plate sections to the lateral rim to engage the engagement elements. An outer drive tube extends through the middle opening and central hole. The reinforcement structure provides enhanced stiffness and robustness to two securing rods extending through the locking holes and the passage holes.Type: GrantFiled: May 19, 2009Date of Patent: May 22, 2012Assignee: Tong Lung Metal Industry Co., Ltd.Inventors: Cheng-Chung Liu, Lan-Kun Don
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Patent number: 8087273Abstract: A lock with a support structure includes a tubular element connected to a handle having a positioning hole and a center hole. The center hole contains a lock set having a rotatable lock core connected to a transmission element. The transmission element has separated first and second sides. A transversally slidable element is installed to the tubular element for receiving a bias pressure of an elastic element, and includes a protruding portion and a bearing portion. The protruding portion can be moved between engaged and non-engaged positions of the positioning hole of the handle. The support structure includes a support portion. If the first side of the transmission element approaches the support portion of the support structure, the bearing portion of the transversally slidable element will approach the second side of the transmission element for limiting the displacement of the transversally slidable element when an external force is applied.Type: GrantFiled: September 16, 2009Date of Patent: January 3, 2012Assignee: Tong Lung Metal Industry Co., Ltd.Inventors: Cheng-Chung Liu, Chia-Min Sun
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Patent number: 7748758Abstract: A cylinder lock includes a latch retractor housing having inner and outer cover plates, inner and outer drive spindles extending respectively through the inner and outer cover plates, a sleeve surrounding the outer drive spindle and having a flange contacting the outer cover plate, an outer shell surrounding the inner drive spindle and the latch retractor housing, and at least one rigid coupling member or tube disposed within the outer shell and engaging and coupling together the inner and outer cover plates and the flange, thereby reinforcing the outer drive spindle and the latch retractor housing and increasing torsional and compression strengths thereof. A reinforcing ring is further provided to couple the outer drive spindle to the outer handle for reinforcement.Type: GrantFiled: January 12, 2007Date of Patent: July 6, 2010Assignee: Tong-Lung Metal Industry Co., Ltd.Inventors: Jeff Fang, Cheng-Chung Liu, Lan-Kun Don
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Publication number: 20100064745Abstract: A lock with a support structure includes a tubular element connected to a handle having a positioning hole and a center hole. The center hole contains a lock set having a rotatable lock core connected to a transmission element. The transmission element has separated first and second sides. A transversally slidable element is installed to the tubular element for receiving a bias pressure of an elastic element, and includes a protruding portion and a bearing portion. The protruding portion can be moved between engaged and non-engaged positions of the positioning hole of the handle. The support structure includes a support portion. If the first side of the transmission element approaches the support portion of the support structure, the bearing portion of the transversally slidable element will approach the second side of the transmission element for limiting the displacement of the transversally slidable element when an external force is applied.Type: ApplicationFiled: September 16, 2009Publication date: March 18, 2010Inventors: Cheng-Chung LIU, Chia-Min Sun
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Publication number: 20100050717Abstract: A re-keyable cylinder lock has a control member to permit or restrict transverse movement of a re-keying unit. The control member is movable axially between first and second positions and transversely to a third position from the second position. In the third position, the re-keying unit moves transversely and disengages from first tumbler pieces. A limit member is provided to prevent the control member from moving axially when no right key is inserted into a plug. A security arm is connected to the control member and is breakable so that destructive forces cannot reach the control member.Type: ApplicationFiled: August 27, 2009Publication date: March 4, 2010Inventors: Wei-Liang CHIANG, Ju-Lin YANG, Cheng-Chung LIU, Kun-Chen LEE, Song-Gen SHYU, Ching-Chuan KUO
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Publication number: 20090288459Abstract: A cylinder lock includes an outer rose disc having a middle opening, two locking holes, and an annular lateral rim formed with opposite engagement elements, a reinforcement structure having a first plate section that has a central hole aligned with the middle opening, and two passage holes aligned with the respective locking holes, two second plate sections extending transversely from two opposite ends of the first plate section, and two support sections respectively extending from the second plate sections to the lateral rim to engage the engagement elements. An outer drive tube extends through the middle opening and central hole. The reinforcement structure provides enhanced stiffness and robustness to two securing rods extending through the locking holes and the passage holes.Type: ApplicationFiled: May 19, 2009Publication date: November 26, 2009Inventors: Cheng-Chung LIU, Lan-Kun DON
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Publication number: 20080168809Abstract: A cylinder lock includes a shell that has an enlarged tubular section, and a constricted tubular section. A retractor case that contains a latch retractor for retracting a latch is disposed within the enlarged tubular section. An inner surface of the enlarged tubular section is provided with an interlocking unit that interlocks with the retractor case to prevent relative rotational movements of the retractor case and the shell. In an embodiment, the retractor case has at least one tongue extending radially between a pair of annularly spaced apart interlocking elements of the interlocking unit.Type: ApplicationFiled: March 20, 2008Publication date: July 17, 2008Inventors: Cheng-Chung LIU, Lan-Kun DON
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Publication number: 20080121002Abstract: A deadbolt lock device includes a housing having an inner case covered by an outer case, and an adaptor connected to the inner case. The inner case has an annular flange projecting inwardly from an open end thereof in a direction toward the adaptor, and an annular rib projecting transversely from the annular flange. The annular rib defines a through hole receiving a key-operated lock unit. The annular rib has an annular edge surrounding the lock unit and extends inclinedly from the juncture of the annular rib and the annular flange to the annular edge along directions inclining toward the open end. The annular rib is inclined with respect to a plane intersecting perpendicularly an axis of the lock case. The inclined annular rib provides an increased resistance to destructive forces.Type: ApplicationFiled: November 23, 2007Publication date: May 29, 2008Inventors: Chia-Min SUN, Tsung-Chung HUANG, Cheng-Chung LIU
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Publication number: 20070284064Abstract: Present invention provides an ingenious way to construct slat base for window blinds, enabling the addition of desired colors or patterns to be incorporated into the slat, by having channels along the length of a slat base, so that add-on materials of desired colors or patterns can be affixed to the slat surface to create desired decorative features.Type: ApplicationFiled: May 5, 2006Publication date: December 13, 2007Inventor: Cheng-Chung LIU
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Publication number: 20070182169Abstract: A cylinder lock includes a latch retractor housing having inner and outer cover plates, inner and outer drive spindles extending respectively through the inner and outer cover plates, a sleeve surrounding the outer drive spindle and having a flange contacting the outer cover plate, an outer shell surrounding the inner drive spindle and the latch retractor housing, and at least one rigid coupling member or tube disposed within the outer shell and engaging and coupling together the inner and outer cover plates and the flange, thereby reinforcing the outer drive spindle and the latch retractor housing and increasing torsional and compression strengths thereof. A reinforcing ring is further provided to couple the outer drive spindle to the outer handle for reinforcement.Type: ApplicationFiled: January 12, 2007Publication date: August 9, 2007Inventors: Jeff Fang, Cheng-Chung Liu, Lan-Kun Don
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Patent number: 5537467Abstract: A distributed service management system for providing communication services comprises a plurality of individual service management systems operated by a plurality of different service providers. Each service management system includes its own local database and an Interactive Distributed Transaction Monitor (IDTM) that allows locally running applications to access the local database as well as remote databases belonging to remotely located service management systems. The interfaces serve to integrate multiple individual service management systems into a single multidatabase transaction management system. The distributed service management system can be used to provide special personal communication services involving multiple service providers, such as call forwarding to a temporarily rented mobile telephone.Type: GrantFiled: August 23, 1994Date of Patent: July 16, 1996Assignee: Bell Communications Research, Inc.Inventors: Wang J. Cheng, Lee-Tin Cheng, Munir Cochinwala, Kuo-Chu Lee, Cheng-Chung Liu, Thomas L. Wise
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Patent number: 5155837Abstract: A time-shared computer system is disclosed in which computer software programs, either application programs or operating system programs, can be retrofitted with new programs which are totally incompatible with the old versions, all without interrupting service provided by the software programs. In a real time software system such as one providing telephone service, the processor (or processors in a multiprocessor system) is divided into two logical partitions. The old version of the software runs in one partition while the new version is loaded into and started up in the other partition. When the new version is verified to be properly operating, the data traffic is transferred from the old version parition to the new version partition in two steps. First the input data is switched to the new verison. When the transactions in progress in the old version are all completed, the output data is switched from the old version to the new version.Type: GrantFiled: March 2, 1989Date of Patent: October 13, 1992Assignee: Bell Communications Research, Inc.Inventors: Cheng-Chung Liu, Daniel S. Lo, Zaher A. Nazif, Fu-Lin Wu, Donald W. Zobre