Patents Represented by Attorney Troxell Law Office PLLC
  • Patent number: 7494587
    Abstract: A filter is made of a rubber having magnetism to attract metal paricles in a fluid for filtering impurities. The filter can be used in a hydraulic transmission system or even an air filter used in a semiconductor production.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: February 24, 2009
    Assignee: National Central University
    Inventors: Biing-Hwa Yan, Hsinn-Jyh Tzeng
  • Patent number: 7496172
    Abstract: A penetrating radiation is used to examine a steel bar in a reinforced concrete coordinated with a comparing object. The position and size of the comparing object are known in advance. At first, the steel bar and the comparing object are projected on an imaging device. Then, a magnifying rate of an image size of the comparing object shown on the imaging device is calculated. By using the magnifying rate and by comparing the image sizes of the steel bar and the comparing object on the imaging device, the defect size of the steel bar can be figured out.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: February 24, 2009
    Assignee: National Central University
    Inventors: Chung-Yue Wang, Peng-Ching Peng
  • Patent number: 7490742
    Abstract: A perfume spray head structure generally comprises a main body, a spray nozzle, a gas guide device, and a gas supply tube, wherein the spray nozzle, the gas guide device, and the gas supply tube are pre-assembled together and then coupled with the main body. By the use of the pre-assembled structure, the assembly process can be performed conveniently and the occurrence of displacement can be avoided. In addition, the spray head has gaps formed thereon for passage of gas and perfume liquid. The perfume liquid is sprayed out via the gaps so as to form uniform perfume mists. The perfume spray head structure of the present invention can avoid the occurrence of non-uniform spray mists, which is caused by the displacement of the spray channel.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: February 17, 2009
    Assignee: Ing Wen Precision Ent. Co., Ltd.
    Inventor: Yuan-Wen Yu
  • Patent number: 7490800
    Abstract: A hanging device for a wireless transmission media comprising at least one engaging fastener formed on a housing of the wireless transmission media, and a hanging base. The engaging fastener shaped in an “L” configuration is provided with a sliding hook having a positioning recess formed on an upper surface thereof, a connecting portion, and a rib projected from a center portion of an inner surface of the sliding hook adjacent to the connecting portion. The hanging base is provided with at least one engaging recess which includes an inserting portion and a sliding portion, wherein the inserting portion has an elastically positioning piece and a positioning projection while the sliding portion has a slide track, a sliding opening, and a positioning frame.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: February 17, 2009
    Assignee: Cameo Communications, Inc.
    Inventor: Kuo Chiang Tu
  • Patent number: 7492060
    Abstract: A fault-tolerant device is kept functioning in an alternating-current inverter for fuel cell even if an inverter unit in the device is malfunctioned. The malfunctioned inverter unit is rep laced with a backup inverter unit to keep the device functioning.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: February 17, 2009
    Assignee: Atomic Energy Council - Institute of Nuclear Energy Research
    Inventors: Yung-Ruei Chang, Yuan-Hsiang Ho, Chen-Min Chan
  • Patent number: 7490531
    Abstract: A kind of accessory handle fixing base for a bicycle, including an accessory handle, two cushions for elbow's relaxation, and fixing bases. It features include making the lower section of the fixing base be an arc position sheet, and making the radian of the position sheet with the front middle of the handle. As a result, the fixing base for fixing the accessory handle can be combined at the locking section of the handle and standpipe when the middle section of the handle is locked in an arc groove positioned at the front end of the handle standpipe and the combination groove is combined with a standpipe.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: February 17, 2009
    Assignee: Ourway Engineering Co., Ltd.
    Inventor: Chuan-Feng Chen
  • Patent number: 7490718
    Abstract: A collapsible treasure box is disclosed and includes an enclosure including an enclosed inner layer and an enclosed outer layer formed of soft cloth, the outer layer being in covering relationship with the inner layer wherein top edges of the inner and the outer layers are stitched together, an enclosed upper frame member concealed by passing upper portions of the inner and outer layers through a bore of the frame member to wrap around a bottom of the frame member, and a lower container member having an open top, the container being enclosed by wrapping a lower portion of the outer layer therearound by stitching bottoms of the inner and the outer layers together. Turning a top of the treasure box until a top opening thereof is closed and folding inside of the treasure box toward outside thereof continuously will shape the treasure box as a bun.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: February 17, 2009
    Assignee: Synthesis Enterprise Co., Ltd.
    Inventor: Wendy Shen
  • Patent number: 7490653
    Abstract: A door and window ornamental article positioning device includes a support unit equipped with stop plates and a support mount to be mounted to a central hollow-out portion of a fan-shaped blind body having a counterweight board fixedly attached to the underside of both end sides respectively. The stop plates and the support mount are respectively provided with connecting portions and coupling cavities to be joined to each other with a restricting space formed for the positioning of the fan-shaped blind body therein. The support mount has an arcutate support portion precisely abutting against the hollow-out portion, and wing panels with insert hooks extending at both external sides to engage with insert pieces of the counterweight boards. Via the separate design, the support unit can have a proper support mount assembled thereto to fit to various diameters of the fan-shaped blind body and stably position the central hollow-out portion thereby.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: February 17, 2009
    Assignee: Ching Feng Home Fashions Co., Ltd.
    Inventor: Liang Wen Ying
  • Patent number: 7490446
    Abstract: A light steel ceiling rack formed of first frame bars and second frame bars, each second frame bar having respective second horizontal top flanges terminating in beveled end edges for engaging into respective notches in the first frame bars and respective first horizontal top flanges provided with end projections for stopping below respective first horizontal top flanges of the first frame bars upon insertion of end plug strips of the second frame bars into respective mounting holes of the first frame bars to enhance the connection and to prevent formation of a gap in the connection area between each first frame bar and each second frame bar.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: February 17, 2009
    Inventor: Sen-Jung Chuang
  • Patent number: 7489775
    Abstract: An input method using standard numeric keypad which complies with CCITT standards and comprises a plurality of CCITT standard keys is disclosed. Each CCITT standard key has a corresponding CCITT key value. The method comprises the steps of: reassigning a first CCITT key value with an actuating key value of a first function; checking if the first CCITT key value is input, if “YES” then actuating the first function to reassign every CCITT key value with a new input key value of predetermined function; and, checking if any CCITT key value is input, if “YES” then performing the predetermined function corresponding to that input CCITT key value based on the first function. Therefore, all functions of the input method can be operated by using merely the CCITT standard keys without the need for other non-standard function keys.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: February 10, 2009
    Assignee: TelePac Technology Inc.
    Inventor: Jun-Yih Lee
  • Patent number: 7487817
    Abstract: A non-pull cord operable window blind structure comprises lift cords assembled onto corresponding positions of a head rail, a bottom rail, and a blind body wherein a cord-winding control device with an operational cord attached thereto, and a fixed seat are mounted to both end sides of an accommodating channel of the head rail with a movable seat situated to slide there-between. The fixed and movable seats respectively have multiple guiding elements for the winding of the lift cords. An insert block attached at one end of the operational cord and an insert cavity defining one side of the movable seat are correspondingly engaged with each other, permitting the operational cord actuated by the sliding of the movable to move in linkage to the lift cords. Therefore, the bottom rail is simply pushed or pulled by hands to adjust the blind body into a desirable collected or expanded position thereby.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: February 10, 2009
    Assignee: Ching Feng Home Fashions Co., Ltd.
    Inventor: Wen Ying Liang
  • Patent number: 7489275
    Abstract: A flat panel antenna includes a horizontal ground plan, a vertical ground plane, a radiation metal member disposed over and in parallel with the horizontal ground plane; the vertical ground plane being disposed at a level higher than that of the radiation metal member, an extension member extending from the vertical ground plane in the direction of and in parallel with the radiation metal member to penetrate into the radiation metal member for a proper length for precise control impedance of the antenna for the normalized impedance to approach 1, i.e. 50-ohm of the system impedance of the antenna to upgrade radiation efficiency of the flat panel antenna.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: February 10, 2009
    Assignee: Joymax Electronics Co., Ltd.
    Inventor: Tze-Chung Wan
  • Patent number: 7488027
    Abstract: A vehicle trunk lid is provided with a lid which can cover on the vehicle trunk. Hinges are provided below the trunk lid for connecting to the side boards of the trunk, while respective hydraulic bars are provided below the two sides of the trunk, including side bars and several horizontal bars, such that the trunk may have a private space for storage purposes, and can be locked up. The support frame can bear and hold large freight.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: February 10, 2009
    Assignee: Yi-Ting Enterprise Ltd.
    Inventor: Ming-Te Liao
  • Patent number: 7489872
    Abstract: The present invention is an optical fiber system and method for carrying both CATV and Ethernet signals. The digital signals are translated into higher band by a direct up/down conversion so that analog signals and digital signals are treated as different frequency bands of electrical signals. Then, all the signals are mixed/divided by a power combiner/divider. And then, by using optoelectronic devices, the signals are processed with optoelectronic conversion. The converted optical signals are transmitted in a fiber or a related optical channel having low channel loss yet high capacity. To sum up, the present invention can transmit digital signals together with analog signals in a single wavelength to save the cost of an optical signal system and to provide a convenience on rearranging the system.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: February 10, 2009
    Assignee: National Central University
    Inventors: Yi-Jen Chan, Fan-Hsiu Huang, Hsin-Pin Wang, Dong-Ming Lin, Mu-Tao Chu, Shin-Ge Lee, Shun-Tien Lee
  • Patent number: 7488860
    Abstract: An exo-tetrahydrodicyclopentadiene is produced from endo-tetrahydrodicyclopentadiene through isomerization reaction. An acidic ionic liquid is used in the isomerization. The isomerization of endo-tetrahydrodicyclopentadiene gives a reaction conversion and a selectivity both higher than 99%. Besides, the ionic liquid used is environmental-friendly and recyclable.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: February 10, 2009
    Assignee: Chinese Petroleum Corp.
    Inventors: Ming-Yu Huang, Jen-Chun Chang, Jann-Chen Lin, Kun-Hai Lin, Jung-Chung Wu
  • Patent number: D586178
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: February 10, 2009
    Inventor: Chun-Lan Shen Ku
  • Patent number: D586497
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: February 10, 2009
    Assignee: Lighthouse Technology Co., Ltd.
    Inventors: Meng-Chai Wu, Chien-Lung Lee, Hua-Lung Tzou, Chun-Min Lai
  • Patent number: D586498
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: February 10, 2009
    Assignee: Lighthouse Technology Co., Ltd.
    Inventors: Meng-Chai Wu, Chien-Lung Lee, Hua-Lung Tzou, Chun-Min Lai
  • Patent number: D586833
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: February 17, 2009
    Inventors: Te-Ming Huang, Arthur W. Schmidt, IV
  • Patent number: D587336
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: February 24, 2009
    Inventor: Tsung-Hsi Tsai