Patents by Inventor Leung Chow

Leung Chow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200198946
    Abstract: A system and a method for an automated guided vehicle (AGV) includes a chassis; a load supporting apparatus disposed on the chassis, the load supporting apparatus including a platform to support a load, a lifting mechanism comprising one or more jacks, the platform coupled to the one or more jacks, the one or more jacks configured to raise or lower the platform, and a rotation mechanism coupled to the platform, the rotation mechanism configured to rotate the platform, wherein the rotation mechanism is configured to rotate the platform in response to the AGV turning.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 25, 2020
    Inventors: Wing Leung Chow, King Sau Wong, Tsz Hin Wong, Kwai Yuen Tiu
  • Publication number: 20200101971
    Abstract: A collision avoidance apparatus for use with an automated guided vehicle (AGV) includes: an object detection sensor assembly; a controller in electronic communication with the sensor assembly; the object detection sensor assembly configured to generate a detection signal to define a sensing region and receive a reflected detection signal; the controller configured to: process the reflected signal to detect presence of an object based on a parameter of the reflected signal, define a boundary within the sensing region, dynamically adjust the size and/or shape of the boundary, and determine if the detected object is located within the boundary.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 2, 2020
    Inventors: Ka Lun Fan, Wing Leung Chow, Lu Sze Wai, Yuan Li Yin
  • Patent number: 10337209
    Abstract: A motor for an electronic lock. The motor drives the electronic lock between a locked position and an unlocked position. A printed circuit board is mounted onto the motor. The printed circuit board includes a motor battery that is mounted onto the printed circuit board. A lock memory device is also mounted onto the printed circuit board and keeping a record of the usage of the electronic lock. In a preferred embodiment, the motor battery is remotely mounted and is connected to the printed circuit board via a wire connection.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: July 2, 2019
    Inventor: Leslie Ho Leung Chow
  • Publication number: 20180112437
    Abstract: A motor for an electronic lock. The motor drives the electronic lock between a locked position and an unlocked position. A printed circuit board is mounted onto the motor. The printed circuit board includes a motor battery that is mounted onto the printed circuit board. A lock memory device is also mounted onto the printed circuit board and keeping a record of the usage of the electronic lock. In a preferred embodiment, the motor battery is remotely mounted and is connected to the printed circuit board via a wire connection.
    Type: Application
    Filed: October 25, 2016
    Publication date: April 26, 2018
    Inventor: Leslie Ho Leung Chow
  • Patent number: 9938751
    Abstract: A tamper resistant lock. A lock has a lock housing with housing indentation. A cylinder is rotatably housed within the housing. A locking pin is connected to the cylinder and is inserted into the housing indentation when the lock is in a locked position and the locking pin is clear of the housing indentation when the lock is in an unlocked position. An anti-tampering mechanism is positioned between the housing and the cylinder. The anti-tampering mechanism receives a user's key and also includes a relative motion hole. A key extension portion is rotatably inserted inside the anti-tampering mechanism body and includes a relative motion indentation. The key extension portion is keyed to the cylinder. A lock ball is inserted into the relative motion hole and the relative motion indention, thereby preventing relative motion between the anti-tampering mechanism body and the key extension portion.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: April 10, 2018
    Inventor: Leslie Ho Leung Chow
  • Patent number: 9803393
    Abstract: An electrical mechanical locking device. A lock has an outer shell with an indentation. An inner body is rotatably housed within the outer shell. A contact pin is connected to the inner body. A printed circuit board frame is rigidly connected to the inner body. A printed circuit board is attached to the printed circuit board frame. A driver arm support bracket is rigidly connected to the printed circuit board frame. A lock microprocessor is connected to the printed circuit board and electrically connected to the contact pin. The lock microprocessor is connected to a key identification code verification database. An electrical actuator is electrically connected to the lock microprocessor. A driver arm is pivotally connected to the driver arm support bracket. The electrical actuator is connected to the driver arm. A jam plate is connected to the driver arm. A jam plate return spring is connected to the jam plate and the printed circuit board frame.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: October 31, 2017
    Inventor: Leslie Ho Leung Chow
  • Patent number: 9784026
    Abstract: A safe. A safe lid is connected to a safe box via a hinge. A fascia assembly is connected to the safe lid and a latch assembly is connected to the safe box. The fascia assembly includes a keypad and a fascia assembly locking groove. The latch assembly includes a latch having a fascia assembly locking tab and a lock latch locking tab. The latch assembly also has a lock lever pivotally connected to the latch and the latch assembly. A motor in the latch assembly receives electrical inputs from the keypad. The latch assembly also has a key lock. A lock latch is connected to and controlled by the motor and the key lock. A lock latch reset spring is connected to the lock latch. The safe is locked when the fascia assembly locking tab is inserted into the fascia assembly locking groove and also when the lock latch locking tab is secured behind the lock latch. The safe is unlocked by entering a pass code into the key pad. This caused an electrical signal to be transmitted to the motor.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: October 10, 2017
    Inventor: Leslie Ho Leung Chow
  • Patent number: 9732549
    Abstract: A safe with a concealed hinge assembly. A safe body has a pocket with a hinge pin attached to the pocket. A safe door has a hinge lug rigidly attached to the safe door. A hinge assembly is formed when the hinge pin is inserted through the hinge lug allowing for the safe door to be pivotally attached to the safe body. The hinge assembly is contained within the pocket so that the hinge assembly is concealed and protected from tampering. In a preferred embodiment the safe body includes two pockets within a rigidly attached door frame. Two hinge assemblies are contained within the pockets so that they are concealed and protected from tampering.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: August 15, 2017
    Inventor: Leslie Ho Leung Chow
  • Patent number: 9729003
    Abstract: Disclosed is a wireless charging device and a method facilitating wireless charging of one or more portable electronic devices. The wireless charging device may include a battery assembly comprising a receiving unit electrically coupled with the transmitting unit. A first set of charging coils within the receiving unit may wirelessly receive, via an electromagnetic induction, electrical energy from a second set of charging coils within an external power source. A third set of charging coils within the transmitting unit may wirelessly transmit, via an electromagnetic induction, the electrical energy received by the receiving unit to one or more portable electronic devices positioned within a predetermined transmission distance from the transmitting unit. A fourth set of charging coils within the one or more portable electronic devices may receive the electrical energy from the transmitting unit thereby facilitating charging of one or more batteries of the one or more portable electronic devices.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: August 8, 2017
    Assignee: C-CORP INTERNATIONAL CO., LIMITED
    Inventor: Matthew Kwok Leung Chow
  • Publication number: 20160281389
    Abstract: An electrical mechanical locking device. A lock has an outer shell with an indentation. An inner body is rotatably housed within the outer shell. A contact pin is connected to the inner body. A printed circuit board frame is rigidly connected to the inner body. A printed circuit board is attached to the printed circuit board frame. A driver arm support bracket is rigidly connected to the printed circuit board frame. A lock microprocessor is connected to the printed circuit board and electrically connected to the contact pin. The lock microprocessor is connected to a key identification code verification database. An electrical actuator is electrically connected to the lock microprocessor. A driver arm is pivotally connected to the driver arm support bracket. The electrical actuator is connected to the driver arm. A jam plate is connected to the driver arm. A jam plate return spring is connected to the jam plate and the printed circuit board frame.
    Type: Application
    Filed: March 24, 2015
    Publication date: September 29, 2016
    Inventor: Leslie Ho Leung Chow
  • Publication number: 20160281390
    Abstract: A tamper resistant lock. A lock has a lock housing with housing indentation. A cylinder is rotatably housed within the housing. A locking pin is connected to the cylinder and is inserted into the housing indentation when the lock is in a locked position and the locking pin is clear of the housing indentation when the lock is in an unlocked position. An anti-tampering mechanism is positioned between the housing and the cylinder. The anti-tampering mechanism receives a user's key and also includes a relative motion hole. A key extension portion is rotatably inserted inside the anti-tampering mechanism body and includes a relative motion indentation. The key extension portion is keyed to the cylinder. A lock ball is inserted into the relative motion hole and the relative motion indention, thereby preventing relative motion between the anti-tampering mechanism body and the key extension portion.
    Type: Application
    Filed: December 3, 2015
    Publication date: September 29, 2016
    Inventor: Leslie Ho Leung Chow
  • Patent number: 9422745
    Abstract: A safe. A safe lid is connected to a safe box via a hinge attachment. The safe is locked shut by utilization of a latch assembly. A Nitinol wire is connected to a latch assembly opening device. The latch assembly opening device is connected to the latch assembly. A user can open the safe by inputting the correct pass code into a keypad. An electrical signal is then transferred to the Nitinol wire causing the Nitinol wire to shorten. The shortening of the Nitinol wire causes the latch assembly opening device to open the latch assembly. In a preferred embodiment a key lock is also configured to control the latch assembly opening device and the key lock may be used as another method to open the safe.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: August 23, 2016
    Inventor: Leslie Ho Leung Chow
  • Publication number: 20150354262
    Abstract: A safe. A safe lid is connected to a safe box via a hinge. A fascia assembly is connected to the safe lid and a latch assembly is connected to the safe box. The fascia assembly includes a keypad and a fascia assembly locking groove. The latch assembly includes a latch having a fascia assembly locking tab and a lock latch locking tab. The latch assembly also has a lock lever pivotally connected to the latch and the latch assembly. A motor in the latch assembly receives electrical inputs from the keypad. The latch assembly also has a key lock. A lock latch is connected to and controlled by the motor and the key lock. A lock latch reset spring is connected to the lock latch. The safe is locked when the fascia assembly locking tab is inserted into the fascia assembly locking groove and also when the lock latch locking tab is secured behind the lock latch. The safe is unlocked by entering a pass code into the key pad. This caused an electrical signal to be transmitted to the motor.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 10, 2015
    Inventor: Leslie Ho Leung Chow
  • Publication number: 20150322695
    Abstract: A safe. A safe lid is connected to a safe box via a hinge attachment. The safe is locked shut by utilization of a latch assembly. A Nitinol wire is connected to a latch assembly opening device. The latch assembly opening device is connected to the latch assembly. A user can open the safe by inputting the correct pass code into a keypad. An electrical signal is then transferred to the Nitinol wire causing the Nitinol wire to shorten. The shortening of the Nitinol wire causes the latch assembly opening device to open the latch assembly. In a preferred embodiment a key lock is also configured to control the latch assembly opening device and the key lock may be used as another method to open the safe.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 12, 2015
    Inventor: Leslie Ho Leung Chow
  • Patent number: 8272338
    Abstract: A safe anchoring device for anchoring a safe to a floor. In addition to anchoring the safe, the safe anchoring device simultaneously provides a watertight and airtight seal for the interior of the safe. A tunnel connects the interior housing to the exterior housing. Insulation is between the interior housing and the exterior housing. A removable top cover covers the tunnel on the inside of the safe at the interior housing. When the anchoring device is used to anchor the safe to the floor, a removable threaded locking bolt extends through the tunnel and is threaded onto a threaded tube section of a bottom cover while the bottom cover is securely attached to the floor. In a preferred embodiment, when the safe is anchored to the floor the watertight and airtight seal is provided by a gasket under the top cover and an O-ring under the bolt head of the threaded locking bolt.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: September 25, 2012
    Inventor: Leslie Ho Leung Chow
  • Patent number: 8161883
    Abstract: A safer flash-bang grenade that yields the state of the art sound intensity, plus a brighter, more intense flash of the order of 13.5 million candela—which effect is due to a combination of a particularly efficacious pyrotechnic formulation and a particular reaction chamber design that momentarily retains or holds-back the reaction escape until the desired intensity is reached. The particular pyrotechnic formulation is based upon a strontium nitrate oxidizer in conjunction with an aluminum powder metallic fuel and a sulfur non-metallic fuel. The particular reaction chamber design includes a relatively rigid, non-fragmenting charge holder, with a slip-fit thin aluminum sleeve internal thereof and a shrink fit or other sealed sleeve external thereof.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: April 24, 2012
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Nicole D. Harasts, William Chung-Leung Chow, Mark Motyka, Steve Kotefski, Lidija Kotevska
  • Publication number: 20120085272
    Abstract: A safe with a concealed hinge assembly. A safe body has a pocket with a hinge pin attached to the pocket. A safe door has a hinge lug rigidly attached to the safe door. A hinge assembly is formed when the hinge pin is inserted through the hinge lug allowing for the safe door to be pivotally attached to the safe body. The hinge assembly is contained within the pocket so that the hinge assembly is concealed and protected from tampering. In a preferred embodiment the safe body includes two pockets within a rigidly attached door frame. Two hinge assemblies are contained within the pockets so that they are concealed and protected from tampering.
    Type: Application
    Filed: October 12, 2010
    Publication date: April 12, 2012
    Inventor: Leslie Ho Leung Chow
  • Publication number: 20110073019
    Abstract: A safe anchoring device for anchoring a safe to a floor. In addition to anchoring the safe, the safe anchoring device simultaneously provides a watertight and airtight seal for the interior of the safe. A tunnel connects the interior housing to the exterior housing. Insulation is between the interior housing and the exterior housing. A removable top cover covers the tunnel on the inside of the safe at the interior housing. When the anchoring device is used to anchor the safe to the floor, a removable threaded locking bolt extends through the tunnel and is threaded onto a threaded tube section of a bottom cover while the bottom cover is securely attached to the floor. In a preferred embodiment, when the safe is anchored to the floor the watertight and airtight seal is provided by a gasket under the top cover and an O-ring under the bolt head of the threaded locking bolt.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Inventor: Leslie Ho Leung Chow
  • Publication number: 20060243856
    Abstract: An aircraft landing gear (9) includes a wheel (1) having a wheel rim (3) on which a tyre (4) is held. The gap (6) between the rim (3) and tyre (4) is bridged and covered by a sealing element (7), which thereby presents a smooth surface to the air flowing over the wheel during flight of the aircraft (8). Thus, noise that would otherwise be generated by the interaction of air and the parts of the wheel (1) and/or tyre (4) defining the gap (6) is reduced. Such noise reduction benefits may also be achieved by providing a tyre (4) and wheel (1) so shaped that there is no gap (6) between the tyre (4) and wheel rim (3).
    Type: Application
    Filed: April 7, 2004
    Publication date: November 2, 2006
    Inventors: Leung Chow, Christopher Wood
  • Patent number: D642235
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: July 26, 2011
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Nicole D. Harasts, Gerard Voorhis, William Chung-Leung Chow, Tom Fasano, Steve Kotefski, Lidija Kotevska