Patents by Inventor Kei Fung Choi
Kei Fung Choi 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).
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Patent number: 11957994Abstract: Control of a toy flying toy plane comprises providing the plane having a motor and propeller and a separate remote controller for use by a player of the toy. The plane includes a flexible, foldable wing and a fuselage below the wing. The fuselage supports at least one propulsion unit and the fuselage is removably locatable relative to the wing. A signal is sent from a transmitter with the toy to the controller. A variation in intensity of the received signal to the toy being from the controller. The controller transmits a signal to the toy according to the desired action of the player and thereby to cause the flying toy to move as required.Type: GrantFiled: September 3, 2020Date of Patent: April 16, 2024Assignee: DONGGUAN SILVERLIT TOYS CO., LTDInventors: Kwok Leung Wong, Kei Fung Choi
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Patent number: 11524248Abstract: A robot system has a follower robot and a leader robot. The follower robot follows the path of the leader robot using infrared (IR) signals. The follower robot follows the physical path and positioning of the leader robot. The leader robot is permitted to travel an arbitrary path or is controlled by a wireless transmitter. Relative robot positioning, being distance or direction can use an infrared system between respective robots.Type: GrantFiled: September 26, 2019Date of Patent: December 13, 2022Assignee: Dongguan Silverlit Toys Co., Ltd.Inventor: Kei Fung Choi
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Publication number: 20220062781Abstract: Control of a toy flying toy plane comprises providing the plane having a motor and propeller and a separate remote controller for use by a player of the toy. The plane includes a flexible, foldable wing and a fuselage below the wing. The fuselage supports at least one propulsion unit and the fuselage is removably locatable relative to the wing. A signal is sent from a transmitter with the toy to the controller. A variation in intensity of the received signal to the toy being from the controller. The controller transmits a signal to the toy according to the desired action of the player and thereby to cause the flying toy to move as required.Type: ApplicationFiled: September 3, 2020Publication date: March 3, 2022Inventors: Kwok Leung Wong, Kei Fung Choi
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Patent number: 10786747Abstract: Hair for a doll, toy or a wearable item is reversibly stylable. The hair can change between straight and curly hair by subjecting the hair to a change of temperature. This temperature change can be by the application of heat, coolness or cold. In one form, then, straighten of curved doll hair filaments is through hot air or hot water. (38-40 degrees). A doll figure can include auto fitting smart hair filaments for practicing the method. Pulling straight doll hair turns the hair to curly. Straightening is affected through heat. The doll has hair filaments which are formed by shape memory plastic material.Type: GrantFiled: July 12, 2019Date of Patent: September 29, 2020Assignee: DONGGUAN SILVERLIT TOYS CO., LTD.Inventors: Kei Fung Choi, Kwok Leung Wong
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Publication number: 20200215447Abstract: A robot system has a follower robot and a leader robot. The follower robot follows the path of the leader robot using infrared (IR) signals. The follower robot follows the physical path and positioning of the leader robot. The leader robot is permitted to travel an arbitrary path or is controlled by a wireless transmitter. Relative robot positioning, being distance or direction can use an infrared system between respective robots.Type: ApplicationFiled: September 26, 2019Publication date: July 9, 2020Inventor: Kei Fung Choi
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Publication number: 20200023284Abstract: Hair for a doll, toy or a wearable item is reversibly stylable. The hair can change between straight and curly hair by subjecting the hair to a change of temperature. This temperature change can be by the application of heat, coolness or cold. In one form, then, straighten of curved doll hair filaments is through hot air or hot water. (38-40 degrees). A doll figure can include auto fitting smart hair filaments for practicing the method. Pulling straight doll hair turns the hair to curly. Straightening is affected through heat. The doll has hair filaments which are formed by shape memory plastic material.Type: ApplicationFiled: July 12, 2019Publication date: January 23, 2020Inventors: Kei Fung Choi, Kwok Leung Wong
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Patent number: 7789340Abstract: An improved structure and method for powering the flight of a model airplane by positioning the motors and propellers on the back side of the top wings of an airplane using a single or double-deck wing design so that the propellers and motors of the airplane are better protected from damage in the event of a crash. The fuselage of the airplane is formed of a deformable material such as a foam to aid in crash resistance.Type: GrantFiled: July 8, 2005Date of Patent: September 7, 2010Assignee: Silverlit LimitedInventor: Kei Fung Choi
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Patent number: 7628671Abstract: A launcher has programmable keys that activate a programming device to communicate with a flying toy to set up any one of multiple different motions of the toy. This is affected when the flying object and the launcher are connected together. Different combinations of program keys include changing of speed and landing procedures. The flying toy includes a receiver that operates a motor, and the flying object is clipped on the launcher and ejected after a user triggers the release button on the launcher.Type: GrantFiled: November 26, 2004Date of Patent: December 8, 2009Assignee: Silverlit Toys Manufactory Ltd.Inventor: Kei Fung Choi
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Publication number: 20090117812Abstract: A flying object with tandem rotors, in particular a helicopter, has a main rotor and a tandem rotor each with propeller blades which are driven by a rotor shaft and which is hinge-mounted to this rotor shaft. The angle between the surface of rotation of the main rotor and the rotor shaft may vary. A swinging manner on an oscillatory shaft is essentially transverse to the rotor shaft of the main rotor and is directed transversally to the longitudinal axis of the vanes. The main rotor and the tandem rotor each have an auxiliary rotor connected respectively to the main rotor and tandem rotor by a mechanical link. The swinging motions of the auxiliary rotor controls the angle of incidence (A) of at least one of the propeller blades of the main rotor and tandem rotor. There is an acute angle of displacement when viewing the propeller blades relative to the vanes in a direction perpendicular to their respective rotational planes.Type: ApplicationFiled: October 6, 2008Publication date: May 7, 2009Applicant: SILVERLIT TOYS MANUFACTORY, LTD.Inventors: Alexander Jozef Magdalena Van de Rostyne, Kei Fung Choi
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Publication number: 20090047862Abstract: A flying object with tandem rotors, in particular a helicopter, has a main rotor and a tandem rotor each with propeller blades which are driven by a rotor shaft and which is hinge-mounted to this rotor shaft. The angle between the surface of rotation of the main rotor and the rotor shaft may vary. A swinging manner on an oscillatory shaft is essentially transverse to the rotor shaft of the main rotor and is directed transversally to the longitudinal axis of the vanes. The main rotor and the tandem rotor each have an auxiliary rotor connected respectively to the main rotor and tandem rotor by a mechanical link. The swinging motions of the auxiliary rotor controls the angle of incidence (A) of at least one of the propeller blades of the main rotor and tandem rotor. There is an acute angle of displacement when viewing the propeller blades relative to the vanes in a direction perpendicular to their respective rotational planes.Type: ApplicationFiled: November 4, 2008Publication date: February 19, 2009Applicant: SILVERLIT TOYS MANUFACTORY, LTD.Inventors: Alexander Jozef Magdalena Van de Rostyne, Kei Fung Choi
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Publication number: 20080299867Abstract: A flying object with tandem rotors, in particular a helicopter, has a main rotor and a tandem rotor each with propeller blades which are driven by a rotor shaft and which is hinge-mounted to this rotor shaft. The angle between the surface of rotation of the main rotor and the rotor shaft may vary. A swinging manner on an oscillatory shaft is essentially transverse to the rotor shaft of the main rotor and is directed transversally to the longitudinal axis of the vanes. The main rotor and the tandem rotor each have an auxiliary rotor connected respectively to the main rotor and tandem rotor by a mechanical link. The swinging motions of the auxiliary rotor controls the angle of incidence (A) of at least one of the propeller blades of the main rotor and tandem rotor. There is an acute angle of displacement when viewing the propeller blades relative to the vanes in a direction perpendicular to their respective rotational planes.Type: ApplicationFiled: August 7, 2008Publication date: December 4, 2008Applicant: SILVERLIT TOYS MANUFACTORY, LTD.Inventors: Alexander Jozef Magdalena Van de Rostyne, Kei Fung Choi
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Publication number: 20080265088Abstract: An improved structure and method for powering the flight of a model airplane by positioning the motors and propellers on the back side of the top wings of an airplane using a single or double-deck wing design so that the propellers and motors of the airplane are better protected from damage in the event of a crash. The fuselage of the airplane is formed of a deformable material such as a foam to aid in crash resistance.Type: ApplicationFiled: July 8, 2005Publication date: October 30, 2008Applicant: Silverlit Toys Manufactory, Ltd.Inventor: Kei Fung Choi
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Patent number: 7407424Abstract: A flying toy can determine its orientation and position in a space by calculating the distance to three reference points on the ground. The flying toy uses three ultrasonic transmitters as the three reference points. The distance to each ultrasonic transmitter is calculated by a microprocessor integrated in the flying toy which records the time it takes for the ultrasonic signal to travel from each of the ultrasonic transmitters to the flying toy. Once the distances to each of the ultrasonic transmitters are known, the microcontroller in the flying toy determines the position in space of the flying toy using trilateration methods. The flying toy can fly on autopilot according to predetermined regions, and prevent crashes by using is positioning data.Type: GrantFiled: January 10, 2005Date of Patent: August 5, 2008Assignee: Silverlit Toys Manufactory, Ltd.Inventor: Kei Fung Choi
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Patent number: 7347764Abstract: A racing toy game comprises a multi-track closed circuit, a respective starting gate for each respective track of the circuit, a finishing post for each respective track of the circuit. There are multiple movable elements each respectively being for traversing a respective track of the circuit and thereby racing in relation to other movable elements in other tracks. A starter is associated with each respective starting gate, the starter having been for operating the respective gates substantially simultaneously to permit initiation of the race. Initiating of the race permitting the respective movable elements to traverse a respective track from the starting gate towards the finishing post. The movable elements are represented by animals, selectively horses.Type: GrantFiled: January 31, 2005Date of Patent: March 25, 2008Assignee: Silverlit Toys Manufactory, Ltd.Inventor: Kei Fung Choi
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Patent number: 7073750Abstract: An improved structure and method for powering the flight of a model airplane by positioning the motors and propellers on the back side of the top wings of an airplane using a single or double-deck wing design so that the propellers and motors of the airplane are better protected from damage in the event of a crash. The fuselage of the airplane is formed of a deformable material such as a foam to aid in crash resistance.Type: GrantFiled: March 3, 2005Date of Patent: July 11, 2006Assignee: Silverlit Toys Manufactory LTDInventor: Kei Fung Choi
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Patent number: 7059930Abstract: A bubble making toy includes a propeller to cause liquid from an outlet port to spread across the space formed in a ring downstream of the propeller. The air generated by the propeller rotates under the action of a fan upstream of the propeller, and causes the ejection of air bubbles from the toy. The bubbles are formed by liquid which is pumped from a reservoir to a dispensing port above the circumferential ring. There is a second reservoir connected to an outlet and operable by finger action to effect the ejection of fluid such as water from a second orifice from the toy. The freely rotating propeller is mounted in the air path from the housing to the outlet for the bubbles and assists in spreading liquid across the space defined by the circumferential ring onto which liquid flows from the outlet port.Type: GrantFiled: November 7, 2003Date of Patent: June 13, 2006Assignee: Silverlit Toys Manufactory, Ltd.Inventor: Kei Fung Choi
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Publication number: 20040142626Abstract: A bubble making toy includes a propeller to cause liquid from an outlet port to spread across the space formed in a ring downstream of the propeller. The air generated by the propeller rotates under the action of a fan upstream of the propeller, and causes the ejection of air bubbles from the toy. The bubbles are formed by liquid which is pumped from a reservoir to a dispensing port above the circumferential ring. There is a second reservoir connected to an outlet and operable by finger action to effect the ejection of fluid such as water from a second orifice from the toy. The freely rotating propeller is mounted in the air path from the housing to the outlet for the bubbles and assists in spreading liquid across the space defined by the circumferential ring onto which liquid flows from the outlet port.Type: ApplicationFiled: November 7, 2003Publication date: July 22, 2004Inventor: Kei Fung Choi
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Patent number: 6762586Abstract: A remote controlled toy vehicle with a rechargable battery operates with rechargeable system. A station has an outlet on or in adjacency with a surface on which the remotely controllable toy is movable, and electrical outlet contacts. The remote controlled toy has inlet contacts for electrically engaging the outlet contacts when steered to the station. When the toy is steered under remote control to the station and the outlet contacts and inlet contacts electrically engage, a rechargeable current is passible from the electrical outlet contacts to the electrical inlet contacts. The station is part of a bypass track and the toy vehicle is normally directed to travel on the track and bypass the station.Type: GrantFiled: November 7, 2002Date of Patent: July 13, 2004Assignee: Silverlit Toy Manufactory, Ltd.Inventor: Kei Fung Choi
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Patent number: D985678Type: GrantFiled: September 16, 2020Date of Patent: May 9, 2023Assignee: Silverlit LimitedInventor: Kei Fung Choi
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Patent number: D1014396Type: GrantFiled: November 20, 2020Date of Patent: February 13, 2024Assignee: DONGGUAN SILVERLIT TOYS CO., LTDInventor: Kei Fung Choi