Patents Assigned to DH INFOTECH (WEIHAI) INC.
  • Publication number: 20150323740
    Abstract: The utility model discloses an optical fiber cutting knife, including the cutting tool post, head cover, fiber placing groove, blade guide rail and blades fixed on the guide rail. The head cover is installed on the cutting tool post, the fiber placing groove is installed inside the cutting tool post, and the blade guide rail is placed on the outside of the cutting tool post. The automatic blade-retracting mechanism is also set on the said optical fiber cutting knife, and the said mechanism is composed of several similar or dissimilar magnets set on the cutting tool post and the blade guide rail respectively. The top of the said head cover is a decorative cover of flat structure. A wear-resisting layer or lubrication coating layer is set on the hammer on the back of the said decorative cover. The utility model of optical fiber cutting knife can make the blade guide rail automatically reset after cutting the fiber, and the cutting effect is more efficient and stable.
    Type: Application
    Filed: February 20, 2012
    Publication date: November 12, 2015
    Applicant: DH INFOTECH (WEIHAI) INC.
    Inventor: YANGRI ZHAO
  • Publication number: 20150301287
    Abstract: The invention relates to the technical field of optical fiber cutting and welding, especially a multi-functional optical fiber fixing clamp. The multi-functional optical fiber fixing clamp of the invention comprises a clamp body and a clamp cover. One side of the said clamp body is pin jointed to the said clamp cover. The said clamp body is arranged with a first fiber loading slot and a fiber connector locating slot. The said clamp cover is arranged with a first abutting structure which is abutted with the said first fiber loading slot and a second abutting structure which is abutted with the said fiber connector locating slot. Compared with the existing technology, the multi-functional optical fiber fixing clamp of the invention can match with SC optical fiber connector, LC optical fiber connector, rubber-insulated fiber cable and wire jumper. As the clamp has the compatibility function, operators are not required to change clamp during a series of operations such as optical fiber cutting and welding.
    Type: Application
    Filed: July 20, 2012
    Publication date: October 22, 2015
    Applicants: INNO INSTRUMENT, INC., DH INFOTECH (WEIHAI) INC.
    Inventor: Yangri Zhao
  • Patent number: 9134480
    Abstract: An efficient heating groove for an optical fiber fusion splicer and an optical fiber fusion splicer. The heat substrate of the heating groove is a metal sheet with heat conducting property. The manufacture method of the heating groove comprises printing, in sequence, insulating medium, heating resistor, transition point conductor, and protection glass glaze on the outer surface of the heating substrate with heat conducting property. Two heating resistors, each with a resistance of 4.7±0.5? and power density of 10-20 W/cm2, are separately printed on the outer face of the two heating surfaces in the heating groove. The heating resistor is made of resistive material with a temperature coefficient of 1500±150 ppm/° C. The resistance of the heating resistor is distributed in a way that, the resistance at two ends is larger than that at a center, and the resistance is reduced gradually or by step, from two ends to the center.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: September 15, 2015
    Assignee: DH INFOTECH (WEIHAI) INC.
    Inventor: Peng Liu
  • Publication number: 20150128779
    Abstract: A fully automated optical fiber cutter includes a fiber cutter body and a fiber clamp. The fiber cutter body includes a cutter cover body and a cutter main body, which are pivotally connected. Inside the cutter main body is provided with a movable blade-fixation seat, which comprises a blade for fiber cutting. The fiber clamp is installed on the cutter main body. The fiber clamp includes a clamp main body and a clamp cover body, which are pivotally connected. The cutter cover body, the clamp cover body and the blade-fixation seat are linked by a linkage component. When the fiber in use, the cutter cover body is pressed to drive the clamp cover body close and push the blade-fixation seat to move, thereby the blade is aligned to cut the fiber.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 14, 2015
    Applicants: INNO INSTRUMENT, INC., DH INFOTECH (WEIHAI) INC.
    Inventor: Yangri Zhao
  • Publication number: 20150123330
    Abstract: The present invention relates to the technical field of fiber splicing devices, particularly to a multifunctional splicing clamp for fixing an optical fiber during the fiber splicing process. A new multi-functional splicing clamp of the present invention, for use in a fiber splicing device, comprises a clamp body and a clamp cover body. One side of said clamp body is pivotally connected to the clamp cover body. Said clamp body is provided with a fiber-carrying pad, and said clamp cover body is provided with an abutment structure which can abut said fiber-carrying pad. Compared to the prior art, a new multifunctional splicing clamp of the present invention can simultaneously match wire cables with big differences in diameters, such as rubber-insulated cables, jumper wires, 2.5 mm optical cables, 900 um optical fibers, 250 um optical fibers, and 80 um optical fibers.
    Type: Application
    Filed: April 6, 2012
    Publication date: May 7, 2015
    Applicants: INNO INSTRUMENT, INC., DH INFOTECH (WEIHAI) INC.
    Inventor: Yangri Zhao
  • Patent number: 8984996
    Abstract: A full-automatic optical fiber container connected with an optical fiber cutting unit includes a first shell and a second shell. The first shell includes a bottom case for containing optical fiber, and a cover pivotally connected with a top of the bottom case. An upper fiber collecting shaft is set at the cover and a lower fiber collecting shaft is set at the bottom case. The two shafts are rotationally connected to an opening of the first shell. The second shell includes a container driving unit that connects with the fiber cutting unit's top cap fixedly, a transmission unit that connects with the container driving unit and the lower fiber collecting shaft, and only engages one-way transmission; and a container lever that is flexibly connected with the first shell's cover. The three parts are set in the second shell with flexible connection respectively.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: March 24, 2015
    Assignee: DH Infotech (Weihai) Inc.
    Inventor: Yangri Zhao
  • Publication number: 20140338195
    Abstract: An optical fiber stripper includes handles, two stripping blades and an optical fiber positioning reference block (hereinafter referred to as reference block), on which optical fiber jacket stripping sub-channel, covered wire/cable jacket stripping sub-channel, and bare fiber coating stripping sub-channel are disposed in parallel, and the stripping blade, respectively, contains optical fiber jacket stripping port, first port, and sharp-angle port. The optical fiber jacket stripping port, the first port, and the sharp-angle port correspond to the optical fiber jacket stripping sub-channel, the covered wire/cable jacket stripping sub-channel, and the bare fiber coating stripping sub-channel, respectively. Reference block contains baffle grooves, and baffles can be inserted into different baffle grooves on the reference block to position optical fiber coating with different lengths.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Applicant: DH INFOTECH (WEIHAI) INC.
    Inventor: Yangri Zhao
  • Publication number: 20140102642
    Abstract: The present disclosure discloses an optical fiber welding machine, including a device for butt joint of the optical fiber's core. The said device comprises a base and a number of units with V-shape groove. The base and the units are shaped respectively. The said units are mounted on the base fixedly. Comparing with the traditional overall molding device for butt joint of the optical fiber's core, the disclosed embodiment spats said traditional device, which has complicated structure and high accuracy requirements, into a base and a number of V-shape groove units, thus simplifies the shape of the components, which are shaped respectively, so as to facilitate the purpose of molding mould and shaping components, and then the v-shape groove units are mounted on the base. After completion of assembly, a v-shaped slot is grooved on top of each v-shape groove unit to ensure enough precision. The disclosed embodiment reduces both the mold manufacturing cost and the molding cost of components.
    Type: Application
    Filed: May 14, 2012
    Publication date: April 17, 2014
    Applicant: DH INFOTECH (WEIHAI) INC.
    Inventors: Yangri Zhao, Dehai Ji
  • Publication number: 20130293901
    Abstract: The invention relates to a method using an optical cable tracker to measure optical cable distances and an optical cable tracker, which comprises a light source, an optical coupler, a phase modulator, a delay optical fiber, and an optical signal demodulation module. In the invention, optical cables are knocked to create disturbance. Not only can the optical cable be identified based on the corresponding interference produced by the light ray in optical cables, but also the distances from knock points to the local telecommunication terminals can be estimated. This facilitates the inspection, repair and maintenance of optical cables.
    Type: Application
    Filed: October 31, 2011
    Publication date: November 7, 2013
    Applicants: INNO INSTRUMENT, INC., DH INFOTECH (WEIHAI) INC.
    Inventor: Chuyuan Li
  • Patent number: D745816
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: December 22, 2015
    Assignee: DH INFOTECH (WEIHAI) INC.
    Inventor: Yangri Zhao
  • Patent number: D745905
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: December 22, 2015
    Assignee: DH INFOTECH (WEIHAI) INC.
    Inventor: Xun Jin