Patents Represented by Attorney Kamrath & Associates PA
  • Patent number: 8075258
    Abstract: A heat-dissipating fan housing includes a casing having a compartment with an impeller section, a stationary blade section, and an airflow concentration section arranged from an air inlet toward an air outlet spaced from the air inlet in an axial direction. A mounting portion is received in the compartment, and an impeller is rotatably coupled to the mounting portion for driving airflows. Stationary blades are interconnected between the casing and the mounting portion and are received in the stationary blade section. Each stationary blade includes a first edge facing the air inlet and a second edge facing the air outlet. The airflow concentration section is between the second edge of each stationary blade and the air outlet in the axial direction. The airflow concentration section concentrates the airflows after passing through the stationary blades. The noise is reduced, the wind pressure is increased, and less electricity is consumed.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: December 13, 2011
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Ming-Tsung Li
  • Patent number: 8076799
    Abstract: A UPS system includes one or more UPS units with identical or different capacities. A control circuit, used to control a DC/AC inverter of the UPS unit, includes a voltage feedback control circuit and a current feedforward control circuit. The voltage feedback control circuit is used to control the amplitude and the waveform of load voltage. The current feedforward control circuit is used to operate the DC/AC inverter of the UPS unit as a virtual fundamental resistor and a virtual harmonic resistor which are serially connected to an output terminal of the DC/AC inverter such that each UPS unit can be distributed to provide an output current according to the capacity ratio of the UPS system.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: December 13, 2011
    Assignee: Ablerex Electronics Co., Ltd.
    Inventors: Chin-Chang Wu, Hung-Liang Chou, Yu-Hsiu Lin, Wen-Jie Hou, Han-Sheng Wei
  • Patent number: 8072187
    Abstract: A battery-charging device, having a maximum power point tracking (MPPT) function, for a stand-alone generator system includes a DC/DC power converter and a control circuit used to control the DC/DC power converter.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: December 6, 2011
    Assignee: Ablerex Electronics Co., Ltd.
    Inventors: Kuen-Der Wu, Hung-Yuan Tai, Jie-Tin Lee, Chang-Chu Wu, Ya-Tsung Feng
  • Patent number: 8070377
    Abstract: A quick-release coupler includes a rod having first and second sections. The first section includes an end for coupling with a pneumatic tool. The second section extends from the other end of the first section. A sleeve is slideably mounted around the rod and includes an end for releasably coupling a bit. The sleeve includes an axial bore having larger and smaller sections. The larger section has polygonal cross sections corresponding to polygonal cross sections of the first section. A radial bore is formed in the sleeve and in communication with the smaller section. A ball is moveably received in the radial bore and moveably received in a recess of the second section of the rod to releasably engage the sleeve with the bit. A spring is mounted in the larger section of the sleeve for biasing the sleeve towards the other end of the rod.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: December 6, 2011
    Inventor: Tzu-Chien Wang
  • Patent number: 8070192
    Abstract: A dogging device includes a base mounted in a housing of a latch assembly. The base includes a hole through which a shaft rotatably extends. A limiting keyway extends from the hole and receives and limits rotation of a shaft key on the shaft. A dogging member includes a through-hole receiving the shaft. A keyway extends from the through-hole and receives the shaft key of the shaft, allowing joint rotation of the shaft and the dogging member. By engaging a tool with a driving groove in an end of the shaft or by utilizing a lock core key to turn a lock core that directly pivots the dogging member, the dogging member is pivotable between a first position engaged with a latching/unlatching control rod of the latch assembly to lock a latch bolt in a retracted state and a second position disengaged from the latching/unlatching control rod.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: December 6, 2011
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventor: Hung-Jen Tien
  • Patent number: 8069869
    Abstract: A crutch has a standing unit, an armpit rest and a grip unit. The standing unit has a top, a foot and multiple positioning holes defined between the top and the foot. The armpit rest is mounted on the top of the standing unit. The grip unit transversally attached to the standing unit has a grip, two positioning bases and two pins. The grip has two ends each having a recess, a pin hole and a limiting portion. Each positioning base has two insertions each having a limiting notch and a hook. When the positioning base engages the recess, the limiting notches combine with the limiting portions and the pin inserts into one corresponding positioning hole. When the positioning base is released from the recess, the limiting notches disengage from the limiting portions, the pin disengages from the positioning hole, and the hook combines with the limiting portion.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: December 6, 2011
    Inventor: Miao-Yuan Huang
  • Patent number: 8069700
    Abstract: An effort-saving hand tool includes a first shaft, a second shaft, a connection shaft, and a third shaft. The first shaft has a first end, a second end, and a pivot point located between the first end and the second end. The second end of the first shaft includes a first loading part. The second shaft has a first end and a second end. The pivot point of the first shaft is pivoted to the first end of the second shaft. The second end of the second shaft includes a second loading part. The connection shaft has a first end pivoted to the first shaft. The third shaft has a slender rear part, a first side, and a second side. The first side of the third shaft is pivoted to the second shaft. The second side of the third shaft is pivoted to a second end of the connection shaft.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: December 6, 2011
    Assignee: Hanlong Industrial Co., Ltd.
    Inventor: Chien-Chou Liao
  • Patent number: 8069612
    Abstract: A mullion assembly (10) includes a top mounting block (92) attached to a top beam (24) of a door frame (22). A bottom mounting block (108) is mounted on a floor (20) spaced from the top beam (24) in a vertical direction. A post (40) is detachably mounted between top and bottom mounting blocks (92, 108). A brace (50) is mounted to a lower end (44) of the post (40). A positioning rod (172) is mounted to the brace (50) and moveable between a locking position and an unlocking position to lock the post (40) between the top and bottom mounting blocks (92, 108). An anchoring rod (214) is mounted to the brace (50) and moveable between an anchoring position and a non-anchoring position, allowing further locking of the post (40) between the top and bottom mounting blocks (92, 108) when the mullion assembly (10) is exposed to a fire.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: December 6, 2011
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventor: Chung-Liang Lin
  • Patent number: 8069573
    Abstract: A pruning hook includes an extension shank (30), a blade unit (10) including a fixed blade (12) mounted on the extension shank and a movable blade (13) pivotally connected with the fixed blade, a driving cord (15) connected with the movable blade, a slide (16) connected with the driving cord, a pull cord (20) connected with the slide, a control member (40) movably mounted on the extension shank and connected with a first end (21) of the pull cord, and a pulling member (50) movable relative to the extension shank and connected with a second end (22) of the pull cord. Thus, the blade unit is driven by the control member or the pulling member so that the blade unit has two operation modes to facilitate a user operating the pruning hook to perform a cutting action.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: December 6, 2011
    Assignee: Jiin Haur Industrial Co., Ltd.
    Inventor: Shih-Piao Wu
  • Patent number: 8070170
    Abstract: A machine (A) includes a frame (16) and a platform (58) on which a boom assembly (B) is mounted. Two arms (332) of a U-shaped pivotal member (330) are pivotably mounted to the frame (16) about a first pivot axis (380) perpendicular to a longitudinal direction of the frame (16). A front end (302) of a mounting plate (310) is pivotably connected to an intermediate section (336) of the pivotal member (330) about a second pivot axis (382) perpendicular to and spaced from the first pivot axis (380). Two rams (400) are mounted on opposite sides of a rear end (304) of the mounting plate (310). Each ram (400) includes a lower end (404) pivotably connected to the frame (16) and an upper end (402) pivotably connected to one of the sides of the mounting plate (310). The boom assembly (B), the mounting plate (310), and the pivotal member (330) pivot about the first pivot axis (380) and/or the second pivot axis (382) relative to the frame (16) due to relative movement of the rams (400).
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: December 6, 2011
    Assignee: Timberpro, Inc.
    Inventor: Patrick Lee Crawford
  • Patent number: 8069822
    Abstract: A pet exercise wheel assembly having a light-emitting device includes an exercise wheel made of a material pervious to light. The exercise wheel has a tapered sleeve projecting from a center of the exercise wheel and is axially formed with a penetrating channel. A light-emitting device has a casing coupled to the tapered sleeve of the exercise wheel. The light-emitting device has a circuit board formed with a central hole and provided with at least a lamp, a battery, a rocker switch, and an IC chip that are electrically connected with each other, with the lamp exposed at an exterior of the casing. Thereby, rotation of the exercise wheel drives the light-emitting device to rotate, so that the rocker switch in the light-emitting device is rocked to close a loop of the circuit board, thus causing the lamp to blink and provide a visual entertaining effect.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: December 6, 2011
    Assignee: Ying Yeeh Enterprise Co., Ltd.
    Inventor: Ying-Kuan Ho
  • Patent number: 8069996
    Abstract: A gardening tool suspension device includes a suspension rack (20) having a through hole (22), a gardening tool (10) mounted on the suspension rack and a fastening mechanism (30) mounted on the suspension rack and locked onto the gardening tool to attach the gardening tool to the suspension rack. The gardening tool include two handles (13) pivotally connected by a threaded pivot shaft (12). The fastening mechanism includes a locking nut (31) screwed onto the pivot shaft and having a flange (311) extending through the through hole, and a retaining ring (32) locked onto the flange of the locking nut. Thus, only the locking nut is locked by the retaining ring so that the two handles of the gardening tool are not limited and can be pivoted freely, thereby facilitating a consumer operating the gardening tool.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: December 6, 2011
    Assignee: Jiin Haur Industrial Co., Ltd.
    Inventor: Shih-Piao Wu
  • Patent number: 8070287
    Abstract: A collapsible eyeglass structure includes a frame bilaterally provided with two temples. The frame has two ends, each having an inner side formed with a through hole. Each through hole has an entrance end with a beveled rim and an opposite end connected to an inwardly expanding receiving space. Each receiving space has a predetermined shape and an upper wall formed with plural teeth. Each temple has a pivotal connecting portion outwardly extended with a post. Each post has a convex tip and is notched so as to be pushed resiliently into the corresponding through hole of the frame. Each post further has an upper periphery formed with a tooth. When the posts are pushed into the receiving spaces in the frame respectively, the tooth of each post meshes with the corresponding teeth in the corresponding receiving space to allow angular adjustment or downward collapse of the temples.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: December 6, 2011
    Assignee: Jiann Lih Optical Co., Ltd.
    Inventor: Tzu-Feng Wang-Lee
  • Patent number: 8069613
    Abstract: A mullion assembly (10) includes a top mounting block (92) attached to a top beam (24) of a door frame (22). A bottom mounting block (108) is mounted on a floor (20) spaced from the top beam (24) in a vertical direction. A post (40) is detachably mounted between top and bottom mounting blocks (92, 108). A brace (50) is mounted to a lower end (44) of the post (40). A positioning rod (172) is mounted to the brace (50) and moveable between a locking position and an unlocking position to lock the post (40) between the top and bottom mounting blocks (92, 108). An anchoring rod (214) is mounted to the brace (50) and moveable between an anchoring position and a non-anchoring position, allowing further locking of the post (40) between the top and bottom mounting blocks (92, 108) when the mullion assembly (10) is exposed to a fire.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: December 6, 2011
    Assignee: I-Tek Metal Mfg. Co., Ltd.
    Inventor: Chung-Liang Lin
  • Patent number: 8059912
    Abstract: A method for an image adjustment is disclosed. The method comprises the steps of: reading an interested pixel and its plural neighboring pixels from an image storage device; determining a so-called first gradient value of the first direction and a so-called second gradient value of the second direction, wherein the first direction is the orthogonal direction of the second direction; comparing the first and the second gradient values; executing a sharpness adjustment to the interested pixel along the direction which has larger gradient value; then executing a noise reduction or smoothing adjustment to the interested pixel along the direction which has smaller gradient value; and repeating the steps until all interested pixels are processed and obtaining a new pixel value.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: November 15, 2011
    Assignee: Altek Corporation
    Inventors: Ming-Jiun Liaw, Yen-Ping Teng
  • Patent number: 8056575
    Abstract: A check valve for use in a pump of a hydraulic cylinder includes a tubular member having a sheath member received therein. The pump includes a chamber provided in an output pipe thereof for receiving the check valve. The tubular member is constructed in the form of a hollow cylinder and includes a sealing sleeve fitted therearound. The tubular member includes an oil seal mounted on the front end thereof for the engagement with a hollow screw element in the chamber. The sheath member includes a hollow cap member, a first spring element, a ball, a hollow disc element, and a second spring element which are placed into the tubular member in turn. By using the hollow disc element and the second spring element, the tubular member may be fixed in the chamber, and by way of the screw element, the tubular member is enclosed in the chamber.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: November 15, 2011
    Inventor: Kun-Shan Hsu
  • Patent number: 8056381
    Abstract: A device for producing a pattern onto a work piece includes a die, an electromagnetic actuator and a base. The die includes a patterned surface, and the patterned surface includes a pattern. The electromagnetic actuator includes an plate body, a convex part and a strip unit connected to the plate body. The electromagnetic actuator is disposed in the base. When the electromagnetic actuator is activated while a work piece is being positioned between the patterned surface and the electromagnetic actuator, an inductive current is generated on the work piece by the electromagnetic actuator, and then a repulsive force is generated between the electromagnetic actuator and the work piece. The repulsive force causes the work piece to adhere to the patterned surface, forcing the work piece to deform against the patterned surface and to take on the shape of the pattern.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: November 15, 2011
    Assignee: Metal Industries Research & Development Centre
    Inventors: Tung-Chen Cheng, Yu-Yi Chu, Rong-Shean Lee, Tzyy-Ker Sue, Chun-Chieh Wang
  • Patent number: 8056590
    Abstract: An adjustment unit is installed to a woodworking machine including a base member and an auxiliary platform and is provided between the base member and the auxiliary platform. The adjustment unit includes an adjustment element including an operated portion formed on an end thereof and an adjustment portion formed on another end thereof. A first connective element includes a longitudinal first connective portion coupled to the adjustment portion of the adjustment element and a second connective element coupled to the first connective element and driving the operated portion of the adjustment element to adjust a horizontal position of the auxiliary platform.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: November 15, 2011
    Inventor: James Liu
  • Patent number: 8058759
    Abstract: An inner-rotor-type motor includes a housing, a stator, a rotor and a bearing seat. The stator is received in an assembly space of the housing. The rotor is rotatably positioned in the housing via a bearing and extends through a through-hole of the stator. The bearing seat includes a socket having a first recess and a second recess and couples to the assembly opening of the assembly space. A stopper is at least a part of the upper wall of the socket and arranged between the first recess and the second recess. The bearing can pass through an end of the socket and be positioned in the first recess, while a circuit board can pass through another end of the socket and be positioned in the second recess. Accordingly, the assembly is simplified, and the assembly convenience is improved.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: November 15, 2011
    Assignee: Sunonwealth Electric Machine Industry Co., Ltd.
    Inventors: Alex Horng, Cheng-Te Liu, Duo-Nian Shan
  • Patent number: D650503
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: December 13, 2011
    Assignee: Day Sun Industrial Corp.
    Inventor: Ching-Hsiang Wang