Patents Represented by Attorney, Agent or Law Firm David & Raymond
  • Patent number: 7740022
    Abstract: An outdoor canopy includes a canopy frame, a canopy shelter and a side entrance arrangement. The canopy frame includes a roof frame and a legs frame downwardly extended from the roof frame to form a canopy area. The canopy shelter, which is made of waterproof fabric, is detachably fastening at the canopy frame to define a ceiling wall, a front wall, a rear wall and two sidewalls for enclosing the canopy area therewithin. The side entrance arrangement is formed on one of the sidewalls of the canopy shelter for a user to gain entry to and exit the canopy area without having to pass through the front entrance, wherein the side entrance arrangement contains a side entrance opening formed on the corresponding sidewall of the canopy shelter, and comprise at least one entrance fabric operatively mounted on the corresponding sidewall.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: June 22, 2010
    Inventor: Wanda Ying Li
  • Patent number: 7730623
    Abstract: A frame jamb marker includes a sliding panel for sliding on the side surface of the frame and a guiding panel perpendicularly extended from the sliding panel for sliding on the marking surface of the frame, wherein the guiding panel has a top stepping edge and a bottom stepping edge to define a top marking point and a bottom marking point at stepping corners at the top and bottom stepping edges respectively. The user is able to point a marker tool on the marking surface at one of the top and bottom marking points. When the sliding panel is slid on the side surface to drive the guiding panel sliding on the marking surface, the marker tool is guided to slidably mark on the marking surface to make a straight marking line thereon so as to precisely form the marking line parallel to the common edge of the frame.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: June 8, 2010
    Inventor: Chin-Hsiung Lien
  • Patent number: 7726619
    Abstract: A wall hook includes an inserting head defining a rotational axis, and a levering handle. The inserting head has a front penetrating tip adapted for rotatably inserting into a wall surface of the wall and a rear fulcrum end rearwardly extended from the penetrating tip along the rotational axis. The levering handle has a transverse arm integrally and transversely extended from the fulcrum end of the inserting head to substantially prolong a torque distance along the transverse arm with respect to the rotational axis, and a controlling arm integrally extended from the transverse arm in such a manner that when the levering handle is rotated, the inserting head is driven to rotate for rotatably penetrating into the wall so as to minimize a torque required to directly apply at the inserting head.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: June 1, 2010
    Inventor: Chin-Hsiung Lien
  • Patent number: 7728263
    Abstract: A process of controlling an operation of an electric kettle includes the steps of initializing a microprocessor to detect a water temperature via a temperature sensor to set a system parameter; checking a status of a control circuit; determining a preserve temperature of the water; verifying the temperature sensor to protect the temperature sensor from being burnt; determining a condition of the water whether the water is needed to be heated up or preserved; and sending out a control signal to the control circuit in responsive to the condition of the water to heat up the water or maintain the water at the preserve temperature. Therefore, the present invention is adapted to accurately control the whole process of the electric kettle.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: June 1, 2010
    Inventors: Mohan Zhang, Yaolun Wang
  • Patent number: 7726505
    Abstract: A vacuum pump valve includes a valve body and a suction element. The valve body includes a sealing platform sealedly attached on the container at the opening thereof, and a guiding sleeve upwardly extended from the sealing platform to form a suction channel, wherein the sealing platform has an operation hole formed thereon at a position within the suction channel and at least a through ventilating groove communicating the receiving cavity of the container with an exterior thereof. The suction element is disposed within the suction channel of the valve body, including an enlarged sealing head adapted to seal on the sealing platform to enclose the ventilating groove thereof, and a guiding shaft extended from the sealing head to slidably mount at the sealing platform at the operation hole to move the sealing head between a releasing position and a sealing position.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: June 1, 2010
    Inventor: George F. Cheung
  • Patent number: 7721475
    Abstract: A sign panel made of light transmitting material, has a front displaying side and a rear side, the sign panel has a background portion that is preferably a flat surface and a protruding portion that forms a sign character, wherein a lighting blocking layer attached to said background portion of the sign panel, and a highlight coating coated on said protruding portion of the rear side of the sign panel. Light can go through the protruding portion with a highlight coating. The sign panel can use without a complicated neon light tubes, and the sign panel contains no mercury versus argon based neon tubes. This is a huge win from the environmental side as there is no use for mercury inside LED signs.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: May 25, 2010
    Inventors: John Chiang, Ken-Sheng Chiang
  • Patent number: 7714527
    Abstract: The garbage container, having a simple structure, a reliable performance, and being easy to install and cost effective, includes a container body, an infrared induction device, a movable cover automatically opened through infrared induction device, an infrared induction device, an automatic cover-opening device connected with the control unit, an output shaft of the driving motor connected with a cable-collecting wheel via a first set of reduction gears. One end of the cable is fixed to the cable-collecting wheel while the other end of the cable is connected with the cover. An output shaft of the cable-collecting wheel is connected with a cam via a second set of reduction gears. The protruding part of the cam is rotated to contact a cover-opening stroke switch and a cover-closing stroke switch respectively. The cover-opening stroke switch and the cover-closing stroke switch are connected respectively with the control unit through a data line.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: May 11, 2010
    Inventors: Xin Wang, Shenwei Wang, Jiangqun Cheng
  • Patent number: 7704292
    Abstract: The present invention discloses a fluid filter for screening carbon-microparticles exhausted from diesel engines, such filter has two types of structure, i.e. the plate type and the preferable tube type, which includes plurality of multilayer corrugated filtering rings and flat filtering rings, a central tube, and an outer casing; the innermost layer of the flat filtering rings is welded onto the central tube, and the outermost layer of the flat rings is welded onto the outer casing; the multi-layer corrugated filter rings are coaxially alternated within the flat filtering rings and formed with a zigzag manner, wherein side edges of each of the corrugated filtering rings are respectively welded onto neighboring flat filtering rings so as to form a continuous filter core with ā€˜Zā€™ shaped side endings, wherein two sides of the Z shaped side endings of said filter core are alternatively applied as fluid inlet and fluid outlet.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: April 27, 2010
    Inventor: Ruihua Hu
  • Patent number: 7699608
    Abstract: An interproximal squirt brush includes a solution container having a compressible solution chamber for containing a washing solution and a nozzle head having an opening, and a brush head including a brush arm and a brush member. The brush arm has a brush portion and a retention portion slidably inserted into the opening of the solution container, wherein a dispensing channel is formed between the retention portion of the brush arm and the inner wall of the nozzle head for allowing the solution to pass therethrough. The brush member is provided at the brush portion of the brush arm. Therefore, when a compression force is applied on the solution container, the solution is released to the brush member through the dispensing channel of the nozzle head.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: April 20, 2010
    Inventors: Johnny Steve Han, Mei-Ling Pauling Han
  • Patent number: 7698773
    Abstract: A holder for hygienic wipes and the like includes triangular-shaped a base member that is suitable sized and shaped for securing a wiping sheet thereto. An adjustable handle is removably attached to the base member. The base member is also configured as a wedge for allowing a user to comfortably position the apparatus between the buttocks. Gripping members are positioned on the base member bottom surface on either side thereof for securing the wiping sheet to the top surface of the base member. Each gripping member includes raised teeth for securing the wipe in place. The handle is substantially cylindrically-shaped and is telescopically extendable, allowing the apparatus to be used by larger individuals. The handle is hingedly connected to the base member, enabling the user to angle the base member for optimal contact and comfort.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: April 20, 2010
    Inventor: Helen Sotelo
  • Patent number: 7695593
    Abstract: The helical fractionating column according to the invention falls into the field of oil separation apparatus for the petroleum refining industry, which includes a column body (8), and is characterized in that the inside of the column body (8) is divided into three sections, the lower section being jet tray section, the middle section being packing section, and the upper section being floating valve section. The helical fractionating column has many advantages, such as having enhanced integrity of separation, decoloration and deodorization, simple structure, convenient manufacturing and maintenance, and low investment cost as well as high product quality etc. Thus, the present invention is worthy to be extended in the petroleum refining industry which uses waste plastics and rubbers as raw materials.
    Type: Grant
    Filed: January 28, 2006
    Date of Patent: April 13, 2010
    Inventor: Fusheng Xie
  • Patent number: 7692904
    Abstract: A method of preventing an overload current from a power supply to a load through a ground fault circuit interrupter includes the steps of: obtaining an interrupted fault current from a hot wire to a ground wire via a first zero-phase current inductor and a fault current from a neutral wire to the ground wire via a second zero-phase current inductor; amplifying a signal of the fault current by an Op-Amp; and determining the fault current by a programmable control module, wherein when the fault current is larger than a preset threshold, the programmable control module sends a control signal to a control switch such that the control switch electrifies a second coil of a trip breaker to drive an armature at an unlocked position, so as to separate a movable terminal with a fixed terminal for electrically disconnecting the load with the power supply.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: April 6, 2010
    Inventors: Xuguang Li, Xiaobing Dong, Yi Yin
  • Patent number: 7693430
    Abstract: A burst optical receiver includes an optical signal inlet, an optical-electrical signal converter, an AC coupling network, an integrator feedback network, and an electrical signal outlet. The AC coupling network is electrically communicated with the optical-electrical signal converter, and blocks the electric signal having the frequency ranges lower than a predetermined threshold frequency, and allows the electric signal having the frequency ranges above the threshold frequency to pass through. The integrator feedback network is electrically communicated with the AC coupling network, and recurrently modifies the electric signal from the AC coupling network in such a manner to minimize noise mixed with the electric signal such that the electric signal is sufficiently contrasted with the noise for maximizing a signal-to-noise ratio of the electric signal.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: April 6, 2010
    Inventor: Heqing Yi
  • Patent number: D612137
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: March 23, 2010
    Inventor: Shiang Shu Duan
  • Patent number: D614458
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: April 27, 2010
    Inventor: Ru Jie Chan
  • Patent number: D615373
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: May 11, 2010
    Inventor: Ru Jie Chan
  • Patent number: D617042
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: June 1, 2010
    Inventor: Ming King Wong
  • Patent number: D617226
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: June 8, 2010
    Inventor: Yimei Cai
  • Patent number: D617227
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: June 8, 2010
    Inventor: Yimei Cai
  • Patent number: D617496
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: June 8, 2010
    Inventor: Ming King Wong