Patents by Inventor Yueh-Chiung Lu

Yueh-Chiung Lu 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: 9033730
    Abstract: A coaxial cable connector is provided, the connector includes: a connector body, a coupling member, a post having an post collar having a forward facing surface, a conductive grounding member operationally positioned axially forward of said forward facing surface of said post collar; whereby the coupling member, grounding member and post provide at least one grounding pathway.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: May 19, 2015
    Inventor: Yueh-Chiung Lu
  • Publication number: 20150024626
    Abstract: A crimping structure includes a plastic ring, an internal hollow pillar, a circular nut and an outer collar, and an embedding slot is formed around the external periphery of an end of the plastic ring for installing the circular nut, and an elastic crimping portion is disposed on a protruding end surface predetermined length of the end having the embedding slot, and at least one tapered groove is formed around the external periphery of the other end having the embedding slot. When the elastic crimping portion is elastically contracted, a waterproof function is achieved at the junction between the circular nut and the internal hollow pillar. With the tapered groove, at least one crimping assembly is formed, so as to provide a more secured connection between an electric cable and a cable connector and a more reliable and stable signal transmission.
    Type: Application
    Filed: May 6, 2014
    Publication date: January 22, 2015
    Inventor: Yueh-Chiung Lu
  • Patent number: 8876553
    Abstract: An aluminum tube coaxial cable connector for CATV applications is disclosed to include a tubular screw member having locating notches at the rear end, a T-shaped insulative stopper and an insulative insert mounted in the tubular screw member to hold a conducting core, an inner tube having lugs protruded from a front rim thereof and engaged into the locating notches of the tubular screw member to prohibit relative rotation between the tubular screw member and the inner tube, a packing component set mounted around the inner tube, and a casing threaded onto the tubular screw member to compress the packing component set and to further lock an inserted aluminum tube coaxial cable to the aluminum tube coaxial cable connector.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: November 4, 2014
    Inventor: Yueh-Chiung Lu
  • Patent number: 8753137
    Abstract: A coaxial cable connector includes a connector body including a barrel, a plastic bushing mounted in the barrel, a body shell inserted into one end of the barrel and abutted against the plastic bushing, an inner tube inserted through the body shell into the barrel defining an end flange and a shoulder, a locknut having an annular groove attached to a neck of the body shell, an inside retaining hole forced into engagement with the shoulder of the inner tube and an abutment surface abutted against the end flange of the inner tube, and an annular contact spring plate set in the inside retaining hole of the locknut with multiple spacer strips thereof clamped on the shoulder of the inner tube to ensure positive establishment of the desired ground loop.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: June 17, 2014
    Inventor: Yueh Chiung Lu
  • Publication number: 20140141646
    Abstract: A coaxial cable connector for connecting a coaxial cable to a mating device is disclosed to include a connector body including a body shell having a front neck and an inner tube mounted in the body shell and defining a shoulder, a locknut defining an inside constraint hole fitting the shoulder of the inner tube, and a contact spring member set in the inside constraint hole around the shoulder. The locknut has a thick part, and a thin part disposed at a front side of the thick part and inwardly curved to provide a plurality of contact points at a thread peak of an inner thread being extending around the inside wall of the thin part and thick part of the locknut for enabling the connected coaxial cable to be positively grounded upon installation in a mating device.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 22, 2014
    Inventor: Yueh Chiung LU
  • Publication number: 20140127941
    Abstract: An aluminum tube coaxial cable connector for CATV applications is disclosed to include a tubular screw member having locating notches at the rear end, a T-shaped insulative stopper and an insulative insert mounted in the tubular screw member to hold a conducting core, an inner tube having lugs protruded from a front rim thereof and engaged into the locating notches of the tubular screw member to prohibit relative rotation between the tubular screw member and the inner tube, a packing component set mounted around the inner tube, and a casing threaded onto the tubular screw member to compress the packing component set and to further lock an inserted aluminum tube coaxial cable to the aluminum tube coaxial cable connector.
    Type: Application
    Filed: November 8, 2012
    Publication date: May 8, 2014
    Inventor: Yueh-Chiung LU
  • Publication number: 20140080346
    Abstract: A coaxial cable connector includes a connector body including a barrel, a plastic bushing mounted in the barrel, a body shell inserted into one end of the barrel and abutted against the plastic bushing, an inner tube inserted through the body shell into the barrel defining an end flange and a shoulder, a locknut having an annular groove attached to a neck of the body shell, an inside retaining hole forced into engagement with the shoulder of the inner tube and an abutment surface abutted against the end flange of the inner tube, and an annular contact spring plate set in the inside retaining hole of the locknut with multiple spacer strips thereof clamped on the shoulder of the inner tube to ensure positive establishment of the desired ground loop.
    Type: Application
    Filed: September 18, 2012
    Publication date: March 20, 2014
    Inventor: Yueh Chiung LU
  • Publication number: 20130237089
    Abstract: A coaxial cable connector for connecting a coaxial cable to a mating device is disclosed to include a locknut, a connector body consisting of an inner tube, a body shell, a barrel and a plastic bushing, a multi-contact spring washer, and an O-ring. The multi-contact spring washer is mounted on a front neck of the body shell, having three or more equiangularly spaced first contact points kept in contact with an annular rear contact face of the locknut and three or more equiangularly spaced second contact points kept in contact with the annular front stop face of the body shell, ensuring positive grounding and enhancing signal transmission reliability.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 12, 2013
    Inventor: Yueh Chiung LU
  • Patent number: 8359736
    Abstract: A crimping tool for crimping a coaxial cable with a cable-end connector, comprises a tool body, a lever and a linking mechanism. The lever and the linking mechanism are connected pivotally and separately with the tool body. The linking mechanism includes a locating block for mounting to a working device which has a connection member, a working head, a shank connecting the connection member and the working head, a sliding socket capping onto the working head and a spring member mounted around the shank. When the inner diameter of a collar of the cable-end connector is larger than the outer diameter of the sliding socket, the sliding socket and working head mount into the collar. When the inner diameter is smaller than the outer diameter of the sliding socket but larger than the outer diameter of the working head, the collar pushes the sliding socket to slide towards the shank.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: January 29, 2013
    Inventor: Yueh-Chiung Lu
  • Patent number: 8328577
    Abstract: A coaxial cable connector suitable for assembly with one of a series of coaxial cables having one same specification and different wire outer diameters is disclosed to use a plastic bushing for compressing by a barrel to wrap about the coaxial cable and compress an inner tube against the aluminum foil and insulation spacer of the coaxial cable, protecting the coaxial cable against weather and extending the lifespan, an O-ring in a locating groove around a front neck of a body shell or on an annular rear contact face of a screw nut to seal the gap between the screw nut and the body shell, and a curved spring plate for stoppage between an annular front stop face of the body shell and an annular rear contact face of the screw nut for grounding to enhance signal transmission reliability.
    Type: Grant
    Filed: October 15, 2011
    Date of Patent: December 11, 2012
    Inventor: Yueh Chiung Lu
  • Publication number: 20120192410
    Abstract: A crimping tool for crimping a coaxial cable with a cable-end connector, comprises a tool body, a lever and a linking mechanism. The lever and the linking mechanism are connected pivotally and separately with the tool body. The linking mechanism includes a locating block for mounting to a working device which has a connection member, a working head, a shank connecting the connection member and the working head, a sliding socket capping onto the working head and a spring member mounted around the shank. When the inner diameter of a collar of the cable-end connector is larger than the outer diameter of the sliding socket, the sliding socket and working head mount into the collar. When the inner diameter is smaller than the outer diameter of the sliding socket but larger than the outer diameter of the working head, the collar pushes the sliding socket to slide towards the shank.
    Type: Application
    Filed: March 23, 2012
    Publication date: August 2, 2012
    Inventor: Yueh-Chiung LU
  • Publication number: 20120196464
    Abstract: Installed in a signal receiving device for the connection of a coaxial cable connector, a water-seal connector is disclosed to include a base block, a connection component extended out of the base block and fastened up with a locknut of the coaxial cable connector, a flexible ring gasket, a cushion pad and a spring washer mounted in proper order amount the connection component and stopped between the locknut and the base block to achieve an excellent water sealing effect. The flexible ring gasket has an axially inwardly extending annular packing portion and a radially inwardly extending annular stop face defined therein and water-tightly wrapped about an outer race and outer end edge of the locknut.
    Type: Application
    Filed: January 31, 2011
    Publication date: August 2, 2012
    Inventor: Yueh Chiung Lu
  • Patent number: 8137132
    Abstract: An electrical connector includes a metal locknut having an inner thread, an orifice defined and a retaining portion, an elastic cylindrical casing having a mounting base for fastening to the retaining portion of the locknut, a core tube inserted into the locknut and the cylindrical casing for receiving the center conductor and inner dielectric insulator of a coaxial cable and having a barbed flange for engaging the braided metal wrapper of the coaxial cable, a first tubular wall and a packing portion connected for engaging into the mounting base of the cylindrical casing, and a barrel mounted on the cylindrical casing and having a contracted inner wall portion adapted for compressing the cylindrical casing.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: March 20, 2012
    Inventor: Yueh-Chiung Lu
  • Publication number: 20120036708
    Abstract: A crimping tool for crimping a coaxial cable with a cable-end connector is disclosed to include a tool body, a lever pivoted to the tool body, and a linking mechanism having a link axially slidably coupled to the tool body inside the accommodation chamber and movable by the lever, a locating block located on one end of the link opposite to the lever and a working device consisting of a shank, a connection member, an expanded working head, a sliding socket and a spring member and connected to the locating block for crimping a coaxial cable with a cable-end connector of any of a variety of different sizes accurately and rapidly with less effort.
    Type: Application
    Filed: March 29, 2011
    Publication date: February 16, 2012
    Inventor: Yueh-Chiung LU
  • Publication number: 20110263153
    Abstract: A cable-end connector includes a metal locknut having an axially extending center through hole, a rear orifice and a retaining structure, the retaining structure of the locknut defining a retaining groove and a stop edge, an elastically deformable cylindrical casing having an axial hole and a retaining structure for engagement with the retaining structure of the locknut and defining with the retaining structure of the locknut a clearance, the retaining structure of the cylindrical casing having a retaining flange for engaging the retaining groove of the retaining structure of the locknut, and a metal core tube mounted in the locknut and the cylindrical casing and having a rear stop flange for stopping against the stop edge of the locknut to block the clearance and to force the retaining flange of the retaining structure of the cylindrical casing into engagement with the retaining groove of the retaining structure of the locknut tightly, thereby sealing off outside moisture and enhancing the electromagnetic wa
    Type: Application
    Filed: March 29, 2011
    Publication date: October 27, 2011
    Inventor: Yueh-Chiung LU
  • Patent number: 8011955
    Abstract: A coaxial cable connector suitable for assembly with one of a series of coaxial cables having one same specification and different wire outer diameters is disclosed to use a plastic bushing for compressing by a barrel to wrap about the coaxial cable and compress an inner tube against the aluminum foil and insulation spacer of the coaxial cable, protecting the coaxial cable against weather and extending the lifespan. A short distance is left between the aluminum foil insertion hole on the left end of the inner tube and the left orifice of the barrel, facilitating insertion of the insulation spacer and aluminum foil of the coaxial cable without causing damage.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: September 6, 2011
    Inventor: Yueh Chiung Lu
  • Publication number: 20110201231
    Abstract: An electrical connector includes a metal locknut having an inner thread, an orifice defined and a retaining portion, an elastic cylindrical casing having a mounting base for fastening to the retaining portion of the locknut, a core tube inserted into the locknut and the cylindrical casing for receiving the center conductor and inner dielectric insulator of a coaxial cable and having a barbed flange for engaging the braided metal wrapper of the coaxial cable, a first tubular wall and a packing portion connected for engaging into the mounting base of the cylindrical casing, and a barrel mounted on the cylindrical casing and having a contracted inner wall portion adapted for compressing the cylindrical casing.
    Type: Application
    Filed: September 23, 2010
    Publication date: August 18, 2011
    Inventor: Yueh-Chiung LU
  • Patent number: 7942695
    Abstract: A cable end connector includes a tubular connection member having a coupling portion, a core tube having a stop flange mounted in the coupling portion, a barbed flange and a coupling portion, a plastic outer tubular member having a front tubular coupling portion coupled to the coupling portion, a rear tubular body and an annular packing portion for engaging the coupling portion of the core tube, a retaining sleeve fastened to the rear tubular body, and an insulative holder block mounted in the core tube to hold a metal center pin for the connection of the center conductor of a coaxial cable.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: May 17, 2011
    Inventor: Yueh-Chiung Lu