Lam, CN
Alexander Ka Ngai Lam, Hong Kong CN
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20150289892 | Low Force Thrombectomy Device - The claimed biocompatible device is designed to remove vessel occlusions such as a thrombus, blood clot, or embolus. The claimed devices maybe used to treat occlusions in the brain, in the vasculature, and in tissues and organs. | 10-15-2015 |
Anthony Lam, Hong Kong Sar CN
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20140302924 | MULTIPLAYER TEAM BALANCING - Techniques are disclosed for multiplayer team balancing in a virtual environment. A group activity is provided in which at least two teams of avatars participate. Each team has a respective plurality of distinct avatars, and each avatar is controlled by a respective player. The at least teams are in competition with one another to achieve a predefined objective when participating in the group activity. Upon it being determined, when the group activity is in progress, that a first player of a first avatar on a first team of the at least two teams is no longer available to participate in the group activity, a balancing action is performed in order to compensate for the first player no longer being available to participate in the group activity. | 10-09-2014 |
Chi Ho Lam, Hong Kong CN
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20150219921 | THERMOPLASTIC LAMINATE, DECORATIVE PART FOR EYEWEAR AND PROCESS OF PREPARATION THEREOF - The present invention relates to a thermoplastic laminate for an eyewear, a decorative part comprising the thermoplastic laminate and a preparation process therefore. In particular, during the preparation of the laminate, a high frequency welding machine is used for bonding thermoplastic layers. The present invention uses a high frequency welding machine for the instant welding of the thermoplastic layers. Good bonding strength exists between different layers. Further, the patterns of the core layer are intact, and have high-definition images. The patterns are located in the core layer, not affected by external environmental factors, and not easily abraded. Further, multiple surfaces of the part for an eyewear have patterns, increasing the beautiful appearance of the part for an eyewear, and meeting the requirements of customers to the largest extent. | 08-06-2015 |
Chi-Seng Lam, Macau CN
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20140055104 | Adaptive DC-link voltage controlled LC coupling hybrid active power filters for reactive power compensation - An adaptive dc-link voltage controlled LC coupling hybrid active power filter (LC-HAPF) for reactive power compensation includes: two dc capacitors to provide dc-link voltage; a three-phase voltage source inverter to convert dc-link voltage into compensating voltages; three coupling LC circuits to convert compensating voltages into currents; and an adaptive dc voltage controller with reactive power compensation control algorithm. The control algorithm includes: first, calculating required minimum dc-link voltage in each phase with respect to loading reactive power; three-phase required minimum dc-link voltage will be maximum one among their minimum values; compare it with predetermined voltage levels to determine final reference dc-link voltage. A dc-link voltage feedback P/PI controller outputs dc voltage reference compensating currents. An instantaneous power compensation controller outputs reactive reference compensating currents. The final reference compensating currents will be sum of them. A PWM circuit provides LC-HAPF adaptive dc-link voltage control and dynamic reactive power compensation. | 02-27-2014 |
Chung Fai Lam, Kwai Chung CN
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20130280956 | Electrical Wiring Device with High Current USB Charging Capabilities - The present invention is directed to an electrical wiring device that includes an AC power supply control circuit, an isolation interface circuit and a low voltage printed circuit board (PCB) assembly. The low voltage PCB assembly includes a universal serial bus (USB) charging interface circuit configured to convert the modulated power signal into a low voltage direct current (DC) charging signal. The at least one low voltage PCB assembly includes at least one USB socket coupled to the USB charging interface circuit and accessible via the at least one USB aperture formed in the front cover member. The USB charging interface circuit is configured to provide the low voltage DC charging signal to at least one device-under-charge at a maximum predetermined charging current. | 10-24-2013 |
Chun Wah Lam, Hongkong CN
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20090185402 | STANDBY CIRCUIT WITH SUPER LOW POWER CONSUMPTION - The present invention relates to a circuit minimizing standby power in a power adapter with a power-frequency transformer (T | 07-23-2009 |
Dennis Shun-Chiu Lam, Hong Kong Sar CN
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20130308824 | DETECTION OF DISEASE-RELATED RETINAL NERVE FIBER LAYER THINNING - Methods, apparatuses, and computer readable media for detecting abnormalities in a characteristic of an eye using eye-imaging methods are presented. A plurality of images of the eye are received over time. Each image includes a plurality of pixels, which can be partitioned into blocks of pixels with varying sizes, called pixel partitions. A value is determined for each pixel partition, e.g., an average of the pixel values. A pixel partition set may be identified, which includes a pixel partition from each image, corresponding to a common region of a patient's eye. A regression model is computed for each pixel partition set using the values determined for each pixel partition. The regression model computes a rate of change of the retinal nerve fiber thickness at individual pixel partitions over time. An abnormality may be identified by comparing the rates of change of the model and the expected age-related rate of change. | 11-21-2013 |
Hiu Yung Lam, Kwai Chung CN
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20150126707 | DAPTOMYCIN ANALOGUES AND A METHOD FOR THE PREPARATION OF DAPTOMYCIN OR A DAPTOMYCIN ANALOGUE - A method for the synthesis of daptomycin or a daptomycin analogue is carried out on a resin to form a linear precursor followed by a serine ligation macrocyclization in solution. Daptomycin analogues can differ from daptomycin by substitution of amino acids residues and/or deletion or addition of amino acid residues. Daptomycin analogues can include a different fatty acid in the side arm of the daptomycin analogue. | 05-07-2015 |
Jimmy Wingsun Lam, Hunghom Kowloon CN
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20110277424 | Method of packing furniture suite for shipping - A method of packing a furniture suite for shipment and, particularly international shipment, comprising the steps of forming a recess having a perimeter created by a skirt circumscribing a large table top and nesting several elements within the recess by forming packing material to nest various elements, which packing material is sized to fit snugly within the recess and using the various elements themselves to create a package having minimal size and weight and being of a shape which is readily fitted with other packages in a container or the like. | 11-17-2011 |
Ka Man Lam, Hong Kong CN
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20150279023 | METHOD FOR LIGHT FLICKER ANALYSIS AND DEVICE THEREOF - This invention provides devices and methods of determining flicker-related parameters of a light emitting source. In one embodiment, the method has the following steps: a) acquiring one or more photo images or video images of a light emitting source with an image capturing device that has a rolling shutter; b) generating, with a processor, from the photo images or video images a flicker frame having one or more flicker dark lines, wherein each flicker dark lines has an output column value of 1; and c) generating, with a processor, one or more flicker-related parameters based on the flicker frame, thereby determining the flicker-related parameters of the light emitting source. | 10-01-2015 |
Kim-Hung Lam, Hong Kong Sar CN
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20090054482 | Method of making and administering quinoline derivatives as anti-cancer agents - The present invention relates methods of preparing quinoline derivative compounds, and administering such compounds in the treatment of solid and non-solid tumors, notably on liver cancer. | 02-26-2009 |
Kitchu Lam, Guangdong CN
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20090239138 | MULTIPLE-CELL BATTERY - A multiple-cell battery includes a battery case and a number of cells positioned in the battery case. Each of the cells includes a positive lead and a negative lead. A number of electrically conductive elastic elements are correspondingly seated between every two adjacent positive leads and/or negative leads. The elastic elements each include at least two contacting portions resiliently abutting against the two adjacent positive leads and/or negative leads, so as to connect the cells in series and/or in parallel. | 09-24-2009 |
Kong Lam, Shenzhen CN
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20080214469 | Novel Biologically Active Peptides and Their New Uses - Novel peptides are disclosed with their use as a pharmaceutical composition. A method is also disclosed for making pharmaceutical compositions and treatment of an individual. | 09-04-2008 |
20080233136 | Biologically Active Peptides - Thirty substantially pure and biologically active peptides are disclosed. Nucleic acids that have sequences coding for the biologically active peptides and pharmaceutical formulations produced therefrom are also disclosed. | 09-25-2008 |
20080293641 | BIOLOGICALLY ACTIVE PEPTIDES - Thirty substantially pure and biologically active peptides are disclosed. Nucleic acids that have sequences coding for the biologically active peptides and pharmaceutical formulations produced therefrom are also disclosed. | 11-27-2008 |
20120171234 | Novel Biologically Active Peptides and their New Uses - Novel peptides are disclosed with their use as a pharmaceutical composition. A method is also disclosed for making pharmaceutical compositions and treatment of an individual. | 07-05-2012 |
20130190241 | NOVEL BIOLOGICALLY ACTIVE PEPTIDES AND THEIR NEW USES - Novel peptides are disclosed with their use as a pharmaceutical composition. A method is also disclosed for making pharmaceutical compositions and treatment of an individual. | 07-25-2013 |
20130190255 | NOVEL BIOLOGICALLY ACTIVE PEPTIDES AND THEIR NEW USES - Novel peptides are disclosed with their use as a pharmaceutical composition. A method is also disclosed for making pharmaceutical compositions and treatment of an individual. | 07-25-2013 |
Kui Kam Lam, Kwai Chung CN
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20120301251 | APPARATUS FOR DELIVERING SEMICONDUCTOR COMPONENTS TO A SUBSTRATE DURING SEMICONDUCTOR PACKAGE MANUFACTURING - An apparatus | 11-29-2012 |
Ricky Hon Hung Lam, Shenzhen CN
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20100308095 | BACKPACK WITH AN INTELLIGENT AUTOMATIC ADJUSTING INFLATION AIRCUSHION AND A PNEUMATIC SHOCK ABSORBER SYSTEM - The present invention relates to the field of backpack technology, and more particularly to a backpack with an intelligent automatic adjusting inflation aircushion and a pneumatic shock absorber system, which comprising: a backpack main body and a shoulder strap and back cushion; the backside of said backpack main body is installed with a back frame; said shoulder strap and back cushion is provided with said adjustable inflation aircushion; the backside of said shoulder strap and back cushion is provided with said pneumatic shock absorber system; said pneumatic shock absorber system can be movably connected with said back frame. Said pneumatic shock absorber system of the present invention can effectively reduce the vibration generated during the usage of the said backpack, while the smart connection between said pneumatic shock absorber system and said adjustable inflation aircushion can automatic adjust air pressure of said inflation aircushion inside said shoulder strap and back cushion according to the number of the load of said backpack. Hence, an optimum softness of said shoulder strap and back cushion is achieved and, as a result, the user will feel more comfortable and can effectively avoid the harm generated from the weight of backpack to his body. | 12-09-2010 |
Sai Hung Lam, Shanghai CN
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20110279797 | APPARATUS AND METHOD FOR CALIBRATING LITHOGRAPHY PROCESS - A calibration wafer may bear one or more different mark types to facilitate inspection of a lithography process. A first mark type may be located on the outer peripheral portion of the wafer to indicate the desired boundary of an edge bead removal (EBR) region. A second mark type may be located on an outer peripheral portion of the wafer to indicate the desired boundary of a wafer edge expose region (WEE). A third mark type may indicate the border of a portion of the wafer expected to bear a wafer identification mark. A fourth mark type may be located at the center of the wafer to allow for precise and uniform application of liquid photoresist material to the calibration wafer. The calibration wafer may be employed in methods of rapidly and easily assessing the accuracy of various phases of photolithography processes. | 11-17-2011 |
Siu Ling Lam, Hong Kong CN
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20150346203 | Methods and Compositions for Use of Neutrophil Elastase and Proteinase 3 as Diagnostic Biomarkers - Methods and compositions for identifying autoimmune diabetes are provided. One aspect provides a method for the evaluation of risk and progression of autoimmune diabetes in mammalian subjects. The method includes measuring the enzymatic activities and/or protein concentrations of neutrophil elastase and proteinase 3 in a subject and comparing the measured levels of these proteases to respective reference levels. | 12-03-2015 |
Th Lam, Guangdong Province CN
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20150124441 | ROTARY LIGHTING FIXTURE HAVING SPEAKER WITH PLAYBACK FUNCTION - A rotary lighting fixture having a speaker with a playback function is revealed herein, comprising a shell having an opening, a speaker fitted inside the shell, and an annular LED module having plural LEDs fitted at the opening of the shell for illumination and playback functions. In addition, the lighting fixture also combines with a power supply base with a rotary function embedded in a ceiling and a wall for substantially saving space in use thereof, promoting interior designs by its aesthetic appearance and adjusting angles of incidence from the LEDs as desired. | 05-07-2015 |
20150125705 | DISPLAY REAR SHELL WITH WATERPROOF AND FIREPROOF PROPERTIES - The invention relates to a display rear shell with waterproof and fireproof properties comprising a main layer of a pulp made from hardwood in an amount from 80% to 90% by weight of the main layer, a pulp waterproof composition in an amount from 5% to 15% by weight of the main layer, and a flame retardant in an amount of a remaining weight percentage by weight of the main layer, a fireproof layer and a waterproof layer, in place of a traditional plastic display rear shell using plastic materials for characteristics as waterproof, fireproof and light weight. | 05-07-2015 |
20150201154 | DISPLAY CONNECTOR WITH 4K IMAGE RESOLUTION - The invention relates to a display connector with a 4K image resolution. It primarily comprises a first connector, a second connector and a third connector. The present invention is a connector for a display to support high specification images with quad full high definition (QFHD). The third connector is used to connect an existing video playback device merely having the playback function of full high definition (FHD). Then the FHD image data is upscaled through an electrically connected image upscaling module of the first connector, and QFHD image signals with an ultra-high definition resolution is displayed through an electronic display device. Accordingly, the QFHD image signals with the ultra-high definition resolution can be displayed without upgrading the hardware of the player or computer so as to dramatically reduce the required cost of upgrading the hardware. | 07-16-2015 |
20150234232 | LED DISPLAY DEVICE - The invention relates to a LED display device. Primarily, it comprises a liquid crystal display, a shell, a plurality of lighting modules and two reflective layers. The present invention is a liquid crystal display device which uses the light emitting diode to combine with polymethylmethacrylate (PMMA) as a lighting module. The secondary lens theory composed of different refractive index between air and PMMA and the angle of the reflective layers on the inner surface of the side planes are used to effectively increase the refracted angle of light emitted from the light emitting diode and the distance of the mixed light and to effectively reach the advantages of thinner liquid crystal display and lower power consumption. | 08-20-2015 |
Tik Hang Lam, Hong Kong CN
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20140169404 | SYSTEM AND METHOD FOR DETECTING HEAT EMITTING OBJECTS - There is provided a system for detecting presence or absence of a heat emitting object, comprising a platform for receiving the object, and the platform defining an area in which a temperature gradient with the object may exist, a thermoelectric device for generating an electrical voltage indicative of the presence or absence of temperature gradient and/or the magnitude of the temperature gradient, and an indicator for indication of the presence or absence of the object to be detected. | 06-19-2014 |
Tsz Ping Lam, Hong Kong CN
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20160131574 | METHOD FOR SCREENING VITAMIN D INSUFFICIENCY USING SKIN COLOURIMETRY - The present application provides a method for establishing a protocol for screening vitamin D (vit-D) insufficiency in a population of interest, a method for screening Vit-D insufficiency using the protocol, and a device for screening Vit-D insufficiency developed based on the protocol. | 05-12-2016 |
Tun Lam, Hong Kong Sar CN
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20120316448 | BLOOD PRESSURE MEASURING DEVICE AND METHOD OF CALIBRATING THEREOF - The present invention is a blood pressure measuring device comprising an optical sensing unit adapted for detecting optical pulses at a plurality of locations on an external surface of a user. The device also comprises a processing unit coupled to the optical sensing unit for determining an optimal location from the plurality of locations based on the detected optical pulses and a pressure sensing unit adapted for detecting a pressure pulse of the user at a location of measurement. The present invention also discloses a method of measuring a blood pressure of a user using a blood pressure measurement device. The advantage of the present invention is that by using an optical sensing unit to locate the artery of the user, or to compensate the misalignment from the artery, the blood pressure is more accurately determined. With the calibration method, the deficient cuff calibration can be waived in certain circumstances. | 12-13-2012 |
Wai Kei Christopher Lam, Macau CN
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20140057860 | PHARMACEUTICAL COMPOSITION FOR TREATING CARDIOVASCULAR AND CEREBROVASCULAR DISEASES AND METHOD OF MANUFACTURING THE SAME - The present invention relates to a pharmaceutical composition for treating cardiovascular and cerebrovascular diseases and the method of preparation thereof. The aforesaid pharmaceutical composition is prepared by the following components in weight percent: 0.1%-0.3% scutellarin, 20%-25% co-surfactant, 40-50% surfactant, and 25-30% oil. The method of preparing the aforesaid pharmaceutical composition comprises the steps of: (1) dispersing scutellarin in co-surfactant and surfactant to obtain a mixture; (2) dispersing the mixture from step (1) in oil, and thermostatically and magnetically stirring the dispersion mixture under the temperature of 25° C. to 37° C., such that the components thereof are completely dissolved to obtain the pharmaceutical composition. Through the use of the selected pharmaceutical adjuvants having the ability to inhibit MRP2, the aforesaid pharmaceutical composition effectively improves absorption and bioavailability of scutellarin. The preparation of the aforesaid pharmaceutical composition is simple and convenient, and the pharmaceutical composition can be processed into a variety of dosage forms for oral administration. | 02-27-2014 |
Wan Lam, Shenzhen CN
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20120014391 | DATA COMMUNICATION METHOD AND DATA COMMUNICATION APPARATUS - A data communication method and a data communication apparatus are provided. The method mainly includes: receiving, by an adapter card, information elements sent by a first switching network board, in which a format of the information element is an information element format capable of being identified by the first switching network board; and performing, by the adapter card, format conversion on the information elements according to an information element format capable of being identified by a second switching network board, and sending the converted information elements to the second switching network board. In this manner, different types of switching network boards can be interconnected and communicate with each other, so as to implement data transmission between network devices having different structures. | 01-19-2012 |
20120020355 | DATA SWITCHING METHOD AND DEVICE - The embodiments of the present invention discloses a data switching method and a switching device, which relates to network technologies. The method is easy to implement, and saves system resources. In unicast switching, resource used for cells reordering at the egress is greatly reduced; in multicast switching, the scheduling is easy and the data pass rate is high. The data switching method includes: receiving a switching request for switching a cell; arbitrating the switching request and obtaining an arbitration result; and performing corresponding switching for the cell, where the switching includes unicast switching and multicast switching, according to the arbitration result. | 01-26-2012 |
20130064312 | DATA TRANSMISSION METHOD AND DEVICE - The present invention provides a data transmission method including: sending, by a transmitter, a source data frame to a receiver, and saving, the source data frame; sending, by the transmitter, other data frames to the receiver, and saving the other data frames; receiving, by the transmitter, a data retransmission notification which is related to the source data frame and sent by the receiver; and retrieving, by the transmitter, the source data frame and other data frames from a storage space, where the other data frames are sent by the transmitter to the receiver in a time period from sending the source data frame by the transmitter to receiving the data retransmission notification by the transmitter, and retransmitting the source data frame and the other data frames to the receiver. | 03-14-2013 |
20140112337 | MULTI-CHASSIS CASCADING APPARATUS - Embodiments of the present invention relate to the communications field, and provide a multi-chassis cascading apparatus. The apparatus includes a line card chassis LCC, where a fabric interface chip FIC and a switch element SE 1/3 are deployed in each line card chassis LCC; the fabric interface chip FIC is connected to the switch element SE 1/3 that is located in the same line card chassis LCC as the fabric interface chip FIC is; and a switch element SE 2 is deployed in each line card chassis LCC; the switch element SE 1/3 is connected to the switch element SE 2 that is located in the same line card chassis LCC as the switch element SE 1/3 is; and the switch element SE 1/3 is connected to the switch element SE 2 that is located in another line card chassis LCC. | 04-24-2014 |
20150334056 | CELL PROCESSING METHOD AND APPARATUS - A cell processing method and apparatus are provided. The method includes: obtaining, by a first sending end, a first timestamp compensation time; adding, by the first sending end, the first timestamp compensation time to a first timestamp carried in a first cell, where the first timestamp is a sending time of the first cell; and sending, by the first sending end to a receiving end, the first cell that is added with the first timestamp compensation time, so that the receiving end forwards the first cell according to the first timestamp that is added with the first timestamp compensation time. In the present invention, a first timestamp compensation time is added to a first timestamp carried in a first cell, which improves cell forwarding efficiency of the receiving end and prevents the occurrence of cell accumulation in a link. | 11-19-2015 |
Wan Lam, Shanghai CN
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20120236850 | METHOD AND DEVICE FOR BUFFERING CELL BY CROSSBAR SWITCHING MATRIX - The present invention discloses a method for buffering a cell by a crossbar switching matrix, which includes: sending a jitter timestamp to a switching port connected to the crossbar switching matrix through a link, and receiving a cell that is sent by the switching port and carries the jitter timestamp, in which the jitter timestamp indicates a jitter of the link itself; and using a sum of the jitter timestamp carried in the cell and a relative delay timestamp of the corresponding link as a total timestamp, and storing the cell in a buffering unit corresponding to the total timestamp in a cell buffer of the link, in which the relative delay timestamp indicates a difference of a delay of the link relative to a delay of a lowest link. | 09-20-2012 |
Wa Ying Lam, Kowloon Hong Kong CN
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20150320131 | BRASSIERE STRAP FASTENING ASSEMBLY - A brassiere strap fastening assembly for coupling together the straps of a brassier includes a fastener that is mountable to the straps. The fastener is attached to a fastener holder and a fastener receiver receives the fastener. The fastener receiver is arranged on a first face of the fastener holder. An ornamental structure is mounted to a second face of the fastener holder. | 11-12-2015 |
Wing Cheung Lam, Hong Kong CN
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20130167680 | GEAR MOTOR ASSEMBLY - A gear motor assembly includes a casing having a through hole, a motor fixed to the casing, an output shaft, a gear fixed to the output shaft and driven by the motor, and a substantially tubular bearing fixed in the through hole of the casing. The gear has a shaft portion that is sleeved in the bearing. A slot is formed in the inner surface of the bearing and/or the outer surface of the shaft portion and is filled with lubricant. | 07-04-2013 |
20130307360 | Motor - A motor assembly for a window lift mechanism has a motor and a gearbox. The motor includes a stator having a metal housing, and a rotor with a commutator, rotatably received in the housing. An end cap assembly is connected to the housing. The end cap assembly includes a plurality of brushes making sliding contact with the commutator, a plurality of connecting pieces for connecting an external power source, inductors connected between the brushes and the connecting pieces, and shielding layers cladding the inductors and electrically connected to the housing. | 11-21-2013 |
20150159744 | GEAR MOTOR ASSEMBLY - A gear motor assembly includes a casing having a through hole, a motor fixed to the casing, an output shaft, a gear fixed to the output shaft and driven by the motor, and a substantially tubular bearing fixed in the through hole of the casing. The gear has a central hub which has an axial end surface, and a shaft portion extending from a central portion of the axial end surface of the central hub. The shaft portion is sleeved in the bearing. A slot is formed in the outer surface of the shaft portion and is filled with lubricant. The slot extends from a free end of the shaft portion to a joint between the outer surface of the shaft portion and the axial end surface of the central hub. | 06-11-2015 |
20150357884 | Motor and Actuator - An electric motor includes a stator and a rotor. The stator includes a motor housing with an open end and an end cover mounted to the open end. The rotor includes a rotor shaft that extends through the end cover. The end cover includes a bearing that supports the rotor shaft. The rotor shaft and motor housing are made of an electrically conductive material and are electrically connected with each other. The motor housing, end cover, bearing and rotor shaft cooperatively form an electromagnetic shield suppressing electromagnetic interference generated by the motor. Optionally, the rotor shaft drives a coaxial worm shaft of a gearbox by an insulating member, which further suppresses electromagnetic interference. | 12-10-2015 |
Wing Hong Lam, Kwun Tong CN
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20150193900 | COMPOSITE DEVICE AND APPLICATION PROCESS AND APPARATUS THEREOF - A composite device comprising a human-readable target device and a verification device in machine-readable (or non-human-readable) encoding in which the verification device is related to the target device by a predefined scheme of operation, the target device may comprise a plurality of human readable symbols. For example, the human readable symbols may be arranged into a string of symbols which is also referred to as a ‘token’ herein. The composite device is useful for applications such as authentication, automated Internet access etc. | 07-09-2015 |
Wing Kin Lam, Kwai Chung CN
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20120301251 | APPARATUS FOR DELIVERING SEMICONDUCTOR COMPONENTS TO A SUBSTRATE DURING SEMICONDUCTOR PACKAGE MANUFACTURING - An apparatus | 11-29-2012 |
Yuen Chi Frankie Lam, Kennedy Town CN
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20080256743 | Surface-Cleaning Apparatus with Height Adjustable Base - A surface cleaning apparatus for cleaning debris is presented. The apparatus includes a housing having a battery, a DC motor and a switch. A belt attaches to the floor brush and DC motor for rotating the floor brush. Front wheels are positioned forward of the floor brush. A height adjustable rear wheel is positioned centrally at a rear of the apparatus. The rear wheel has a first height for operating the apparatus on a hard surface such that the debris is brushed from the surface and friction between the floor brush and the surface is minimized and a second height for operating the apparatus on a soft surface such that the debris is brushed from the surface and friction between the floor brush, the housing and the surface is minimized thus reducing electricity consumption and providing a smooth movement of the apparatus over the surface. | 10-23-2008 |