Patents by Inventor Wai Ho Choy

Wai Ho Choy 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: 20240077192
    Abstract: Apparatus and methods for lighting. The apparatus may include a first jewel and a second jewel. The first jewel may support the second jewel by a first link. The first jewel may support the second jewel by a second link. The first link and second links may be configured for transmission of current between the first jewel and the second jewel. The first and second links may be the only attachments of the second jewel to the first jewel. The first jewel may be configured to selectively emit three different colors of light. The second jewel may be configured to selectively emit three different colors of light. The second jewel may be configured to selectively emit the three different colors of the first jewel. The selection may be performed by a user using a switch.
    Type: Application
    Filed: September 28, 2023
    Publication date: March 7, 2024
    Inventors: Wai Ho Choy, Wei Gao, Fei Zeng
  • Patent number: 11913634
    Abstract: Apparatus and methods for enhanced lighting. The apparatus may include a light-transmitting body. The apparatus may include a light projector. The projector may be configured to propagate into the light-transmitting body an incoming incoherent light. The projector may be configured to propagate into the light-transmitting body an incoming visible coherent light. Emerging coherent light within a visible wavelength rage attributable to the incoming visible coherent light may have a first intensity. The first intensity may be greater than a second intensity. The second intensity may be an intensity of any emerging coherent light that is within the wavelength range and is attributable to the incoming incoherent light. Emerging light may be light that emerges from the light-transmitting body.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: February 27, 2024
    Assignee: Wangs Alliance Corporation
    Inventors: Shelley S. Wald, Wai Ho Choy, Derrick A. Wald
  • Patent number: 11906153
    Abstract: Apparatus and methods for enhanced lighting. The apparatus may include a light-transmitting body. The apparatus may include a light projector. The projector may be configured to propagate into the light-transmitting body an incoming incoherent light. The projector may be configured to propagate into the light-transmitting body an incoming visible coherent light. Emerging coherent light within a visible wavelength rage attributable to the incoming visible coherent light may have a first intensity. The first intensity may be greater than a second intensity. The second intensity may be an intensity of any emerging coherent light that is within the wavelength range and is attributable to the incoming incoherent light. Emerging light may be light that emerges from the light-transmitting body.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: February 20, 2024
    Assignee: Wangs Alliance Corporation
    Inventors: Shelley S. Wald, Wai Ho Choy, Derrick A. Wald
  • Patent number: 11864287
    Abstract: Circuitry to control dimming of a load circuit may be connected between a 0-10 V dimmer that outputs a DC voltage control signal and the load circuit. The circuitry may include a microcontroller that may be programmed to generate a first pulse-width modulated (“PWM”) signal having a duty cycle based on the dimming level configured to be set on the dimmer. A voltage conversion circuit may supply the microcontroller with data relating to the set dimming level. The microcontroller may be programmed to synchronize the first PWM signal with the supplied AC power from the main circuit based on a second PWM signal from a voltage detection circuit, such as a zero crossing voltage detection circuit. The first PWM signal may be supplied from the microcontroller to an on/off switch to chop the AC power waveform at certain intervals and thereby dim the load.
    Type: Grant
    Filed: May 31, 2023
    Date of Patent: January 2, 2024
    Assignee: Wangs Allliance Corporation
    Inventors: Wai Ho Choy, Yumeng Sha, Haisheng Zhou, Wei Gao
  • Patent number: 11802682
    Abstract: Apparatus and methods for lighting. The apparatus may include a first jewel and a second jewel. The first jewel may support the second jewel by a first link. The first jewel may support the second jewel by a second link. The first link and second links may be configured for transmission of current between the first jewel and the second jewel. The first and second links may be the only attachments of the second jewel to the first jewel. The first jewel may be configured to selectively emit three different colors of light. The second jewel may be configured to selectively emit three different colors of light. The second jewel may be configured to selectively emit the three different colors of the first jewel. The selection may be performed by a user using a switch.
    Type: Grant
    Filed: January 8, 2023
    Date of Patent: October 31, 2023
    Assignee: Wangs Alliance Corporation
    Inventors: Wai Ho Choy, Wei Gao, Fei Zeng
  • Publication number: 20230250934
    Abstract: Apparatus and methods for enhanced lighting. The apparatus may include a light-transmitting body. The apparatus may include a light projector. The projector may be configured to propagate into the light-transmitting body an incoming incoherent light. The projector may be configured to propagate into the light-transmitting body an incoming visible coherent light. Emerging coherent light within a visible wavelength rage attributable to the incoming visible coherent light may have a first intensity. The first intensity may be greater than a second intensity. The second intensity may be an intensity of any emerging coherent light that is within the wavelength range and is attributable to the incoming incoherent light. Emerging light may be light that emerges from the light-transmitting body.
    Type: Application
    Filed: April 19, 2023
    Publication date: August 10, 2023
    Inventors: Shelley S. Wald, Wai Ho Choy, Derrick A. Wald
  • Publication number: 20220357013
    Abstract: Apparatus and methods for enhanced lighting. The apparatus may include a light-transmitting body. The apparatus may include a light projector. The projector may be configured to propagate into the light-transmitting body an incoming incoherent light. The projector may be configured to propagate into the light-transmitting body an incoming visible coherent light. Emerging coherent light within a visible wavelength rage attributable to the incoming visible coherent light may have a first intensity. The first intensity may be greater than a second intensity. The second intensity may be an intensity of any emerging coherent light that is within the wavelength range and is attributable to the incoming incoherent light. Emerging light may be light that emerges from the light-transmitting body.
    Type: Application
    Filed: May 5, 2022
    Publication date: November 10, 2022
    Inventors: Shelley S. Wald, Wai Ho Choy
  • Patent number: 10450779
    Abstract: A lock is provided, the lock having: a lock mechanism having a first member and a second member, the first member and the second member each being slidably mounted to a housing of the combination lock, wherein the first member is capable of movement between a first position and a second position and the second member is capable of movement between a first position and a second position and wherein movement of the first member from the first position to the second position causes the second member to move from the first position to the second position; a bolt configured for movement between a locking position and an unlocking position, the bolt preventing the second member from moving from the second position to the first position when the bolt is in the locking position.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 22, 2019
    Assignee: ZEPHYR LOCK, LLC
    Inventors: Wai-Ho Choy, Patrick E. Wind, Kevin Houlihan, Cheung Yi Lam
  • Patent number: 10300589
    Abstract: A fastening tool assembly has a magazine body in a sleeve to convey fasteners to a housing outlet. Pivoting a lever relative to the housing, translates a knife to a loaded position, thereby disengaging from the knife, permitting a spring to return the knife to an unloaded position to drive a fastener through the outlet. A handle is pivotally connected to the housing. A roller is directly connected to the lever and the handle for permitting translation of the lever relative to the handle as the lever and the handle are pivoted relative to the housing. A spring-loaded bracket is operably connected to the magazine body for translation and rotation relative to the body. A latch is mounted to the housing to engage the bracket and maintain the magazine body in a retracted position, and is movable to a disengaged position wherein the bracket extends from the magazine body.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: May 28, 2019
    Assignee: ARROW FASTENER COMPANY, LLC
    Inventors: Jonathan Sokol, Stephen Craig Pennington, Wai Ho Choy, Michael Reedy
  • Patent number: 10267064
    Abstract: A lock is provided, the lock having: a lock mechanism having a first member and a second member, the first member and the second member each being slidably mounted to a housing of the combination lock, wherein the first member is capable of movement between a first position and a second position and the second member is capable of movement between a first position and a second position and wherein movement of the first member from the first position to the second position causes the second member to move from the first position to the second position; a bolt configured for movement between a locking position and an unlocking position, the bolt preventing the second member from moving from the second position to the first position when the bolt is in the locking position.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: April 23, 2019
    Assignee: ZEPHYR LOCK, LLC
    Inventors: Wai-Ho Choy, Patrick E. Wind, Kevin Houlihan, Cheung Yi Lam
  • Patent number: 9863166
    Abstract: A lock is provided, the lock having: a lock mechanism having a first member and a second member, the first member and the second member each being slidably mounted to a housing of the combination lock, wherein the first member is capable of movement between a first position and a second position and the second member is capable of movement between a first position and a second position and wherein movement of the first member from the first position to the second position causes the second member to move from the first position to the second position; a bolt configured for movement between a locking position and an unlocking position, the bolt preventing the second member from moving from the second position to the first position when the bolt is in the locking position.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: January 9, 2018
    Assignee: ZEPHYR LOCK, LLC
    Inventors: Wai-Ho Choy, Patrick E. Wind, Kevin Houlihan, Cheung Yi Lam
  • Patent number: 9689178
    Abstract: A lock is provided, the lock having: a lock mechanism having a first member and a second member, the first member and the second member each being slidably mounted to a housing of the combination lock, wherein the first member is capable of movement between a first position and a second position and the second member is capable of movement between a first position and a second position and wherein movement of the first member from the first position to the second position causes the second member to move from the first position to the second position; a bolt configured for movement between a locking position and an unlocking position, the bolt preventing the second member from moving from the second position to the first position when the bolt is in the locking position.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: June 27, 2017
    Assignee: ZEPHYR LOCK, LLC
    Inventors: Wai-Ho Choy, Patrick E. Wind, Kevin Houlihan, Cheung Yi Lam
  • Patent number: 9586311
    Abstract: A fastening tool assembly is provided with a housing with a contact surface, a longitudinal magazine receptacle, and a fastener outlet provided through the contact surface. A magazine body is received within the magazine receptacle to translate to a retracted position whereby a proximal end is adjacent the fastener outlet to store fasteners within the receptacle and to convey the fasteners to the fastener outlet, and to translate to an extended position whereby the body extends at least partially out of the receptacle for receipt of fasteners to the receptacle. A blocker is mounted to a side of the magazine body spaced apart from the fastener intake side. The blocker has a transverse width greater than a width of the body for blocking intake of fasteners to a wrong side of the body. Instructional indicia are provided on the blocker to instruct a user regarding proper fastener installation.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: March 7, 2017
    Assignee: Arrow Fastener Co., LLC
    Inventor: Wai Ho Choy
  • Publication number: 20170022738
    Abstract: A lock is provided, the lock having: a lock mechanism having a first member and a second member, the first member and the second member each being slidably mounted to a housing of the combination lock, wherein the first member is capable of movement between a first position and a second position and the second member is capable of movement between a first position and a second position and wherein movement of the first member from the first position to the second position causes the second member to move from the first position to the second position; a bolt configured for movement between a locking position and an unlocking position, the bolt preventing the second member from moving from the second position to the first position when the bolt is in the locking position.
    Type: Application
    Filed: January 29, 2016
    Publication date: January 26, 2017
    Inventors: Wai-Ho Choy, Patrick E. Wind, Kevin Houlihan, Cheung Yi Lam
  • Patent number: 9249603
    Abstract: A lock is provided, the lock having: a lock mechanism having a first member and a second member, the first member and the second member each being slidably mounted to a housing of the combination lock, wherein the first member is capable of movement between a first position and a second position and the second member is capable of movement between a first position and a second position and wherein movement of the first member from the first position to the second position causes the second member to move from the first position to the second position; a bolt configured for movement between a locking position and an unlocking position, the bolt preventing the second member from moving from the second position to the first position when the bolt is in the locking position.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: February 2, 2016
    Assignee: ZEPHYR LOCK, LLC
    Inventors: Wai-Ho Choy, Patrick E. Wind, Kevin Houlihan, Cheung Yi Lam
  • Publication number: 20130292446
    Abstract: A fastening tool assembly is provided with a housing with a contact surface, a longitudinal magazine receptacle, and a fastener outlet provided through the contact surface. A magazine body is received within the magazine receptacle to translate to a retracted position whereby a proximal end is adjacent the fastener outlet to store fasteners within the receptacle and to convey the fasteners to the fastener outlet, and to translate to an extended position whereby the body extends at least partially out of the receptacle for receipt of fasteners to the receptacle. A blocker is mounted to a side of the magazine body spaced apart from the fastener intake side. The blocker has a transverse width greater than a width of the body for blocking intake of fasteners to a wrong side of the body. Instructional indicia are provided on the blocker to instruct a user regarding proper fastener installation.
    Type: Application
    Filed: April 19, 2013
    Publication date: November 7, 2013
    Applicant: Arrow Fastener Co., LLC
    Inventor: Wai Ho Choy
  • Publication number: 20130239629
    Abstract: A lock is provided, the lock having: a lock mechanism having a first member and a second member, the first member and the second member each being slidably mounted to a housing of the combination lock, wherein the first member is capable of movement between a first position and a second position and the second member is capable of movement between a first position and a second position and wherein movement of the first member from the first position to the second position causes the second member to move from the first position to the second position; a bolt configured for movement between a locking position and an unlocking position, the bolt preventing the second member from moving from the second position to the first position when the bolt is in the locking position.
    Type: Application
    Filed: October 12, 2012
    Publication date: September 19, 2013
    Inventors: Wai-Ho Choy, Patrick E. Wind, Kevin Houlihan, Cheung Yi Lam
  • Publication number: 20130228608
    Abstract: A fastening tool assembly has a magazine body in a sleeve to convey fasteners to a housing outlet. Pivoting a lever relative to the housing, translates a knife to a loaded position, thereby disengaging from the knife, permitting a spring to return the knife to an unloaded position to drive a fastener through the outlet. A handle is pivotally connected to the housing. A roller is directly connected to the lever and the handle for permitting translation of the lever relative to the handle as the lever and the handle are pivoted relative to the housing. A spring-loaded bracket is operably connected to the magazine body for translation and rotation relative to the body. A latch is mounted to the housing to engage the bracket and maintain the magazine body in a retracted position, and is movable to a disengaged position wherein the bracket extends from the magazine body.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 5, 2013
    Applicant: ARROW FASTENER CO., LLC
    Inventors: Jonathan Sokol, Stephen Craig Pennington, Wai Ho Choy, Michael Reedy