Patents by Inventor Jui-Fu Tseng
Jui-Fu Tseng 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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Publication number: 20230358503Abstract: A throwing device includes a case assembly including a cylindrical casing; a front cap including a first through hole and a first membrane; a cylindrical member urging against the first membrane and including an axial channel; a tapered moveable element in the casing; and a projectile in the casing; and a valve including a housing filled with pressurized air; a second membrane urging against the externally threaded rear extension; a joining member urging against the moveable element and including a second through hole; a moveable member; a cup shaped member blocking the second through hole and secured to the moveable member; an internally threaded limit member secured to the moveable member; a biasing member disposed on the moveable member; and a base secured to the housing and including a third through hole. The second membrane blocks the third through hole.Type: ApplicationFiled: July 18, 2023Publication date: November 9, 2023Inventor: Jui-Fu Tseng
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Patent number: 11733013Abstract: A hand grenade for launching BB bullets includes two half shells each including a spiral bullet storage and one half shell further including a discharge opening; a hollow, cylindrical base including a bottom recess, an air passage communicating with one bullet storage, and a valve at an end of the air passage; a steel ball on the recess to block the valve; a pressing assembly including a disc urging against the steel ball, a hollow cylinder extending upward from the disc, a magnet in the hollow cylinder, and a rod partially in the hollow cylinder to engage with the magnet; a hollow, cylindrical member threadedly secured to the cylindrical base; a cup-shaped cap threadedly secured to the cylindrical member and including two opposite projections on an inner surface and a bottom through hole with the rod passing through; and a switch including two opposite protrusions under the projections respectively.Type: GrantFiled: July 1, 2022Date of Patent: August 22, 2023Assignee: Worlite Industrial Co., Ltd.Inventor: Jui-Fu Tseng
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Publication number: 20230132075Abstract: A hand grenade for launching BB bullets includes two half shells each including a spiral bullet storage and one half shell further including a discharge opening; a hollow, cylindrical base including a bottom recess, an air passage communicating with one bullet storage, and a valve at an end of the air passage; a steel ball on the recess to block the valve; a pressing assembly including a disc urging against the steel ball, a hollow cylinder extending upward from the disc, a magnet in the hollow cylinder, and a rod partially in the hollow cylinder to engage with the magnet; a hollow, cylindrical member threadedly secured to the cylindrical base; a cup-shaped cap threadedly secured to the cylindrical member and including two opposite projections on an inner surface and a bottom through hole with the rod passing through; and a switch including two opposite protrusions under the projections respectively.Type: ApplicationFiled: July 1, 2022Publication date: April 27, 2023Inventor: Jui-Fu Tseng
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Patent number: 11187490Abstract: An air-soft gun includes a grip; a high-pressure air canister disposed in the grip; and a remaining compressed air release device including a channel member threadedly secured to an end of the air canister and including an axial channel and a sealing ring; a rotatable cap releasably secured to the channel member; a biasing member fastened between the cap and the channel member; a striker including a needle on a first end, an internal passageway, an inlet proximate the needle and communicating with the passageway, an outlet proximate a second end and communicating with the passageway, internal threads on the passageway proximate the second end, and a threaded fastener driven through the cap into the internal threads to secure the cap to the striker. The inlet is blocked by the sealing ring in an inoperative position.Type: GrantFiled: September 9, 2020Date of Patent: November 30, 2021Inventor: Jui-Fu Tseng
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Publication number: 20210262774Abstract: An air gun projectile includes a tail portion, a nose portion, and a container having a top releasably secured to the nose portion. Filling is contained in the container. The container is tapered to a bottom. The tail portion includes spaced vanes formed with a lower portion of the container, and a rim formed with outer ends of the vanes. The vanes are inclined with respect to the rim. The rim is tapered to a bottom. The container includes a plurality of spaced longitudinal grooves formed on an inner surface, and a plurality of circular grooves formed on the inner surface. The nose portion includes a plurality of spaced longitudinal grooves formed on an inner surface, and a plurality of circular grooves formed on the inner surface.Type: ApplicationFiled: May 12, 2021Publication date: August 26, 2021Inventor: Jui-Fu Tseng
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Publication number: 20200400400Abstract: An air-soft gun includes a grip; a high-pressure air canister disposed in the grip; and a remaining compressed air release device including a channel member threadedly secured to an end of the air canister and including an axial channel and a sealing ring; a rotatable cap releasably secured to the channel member; a biasing member fastened between the cap and the channel member; a striker including a needle on a first end, an internal passageway, an inlet proximate the needle and communicating with the passageway, an outlet proximate a second end and communicating with the passageway, internal threads on the passageway proximate the second end, and a threaded fastener driven through the cap into the internal threads to secure the cap to the striker. The inlet is blocked by the sealing ring in an inoperative position.Type: ApplicationFiled: September 9, 2020Publication date: December 24, 2020Inventor: Jui-Fu Tseng
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Patent number: 10436547Abstract: An electrically powered airsoft gun includes a rechargeable battery; an indicator; an air canister; a solenoid valve for opening or closing the air canister; an electronic circuit board electrically connected to the rechargeable battery and including a microswitch and a processor electrically connected to the indicator and the solenoid vale respectively; and a trigger for activating or deactivating the microswitch. Various firing rates or intervals can be set by pulling the trigger a number of times.Type: GrantFiled: November 8, 2018Date of Patent: October 8, 2019Inventor: Jui-Fu Tseng
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Publication number: 20190072359Abstract: An electrically powered airsoft gun includes a rechargeable battery; an indicator; an air canister; a solenoid valve for opening or closing the air canister; an electronic circuit board electrically connected to the rechargeable battery and including a microswitch and a processor electrically connected to the indicator and the solenoid vale respectively; and a trigger for activating or deactivating the microswitch. Various firing rates or intervals can be set by pulling the trigger a number of times.Type: ApplicationFiled: November 8, 2018Publication date: March 7, 2019Inventor: Jui-Fu Tseng
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Patent number: 9797678Abstract: A firing mechanism of an airsoft gun includes, in combination a gun body; a sleeve in a rear portion of the gun body; a discharge tube in a front end of the sleeve; a retaining ring on the front end of the sleeve; at least one assembly, each including an air canister and a piercing member facing the air canister; a locking member put on a rear end of the sleeve and configured to rotate to cause the piercing member to pierce the air canister of each of the at least one assembly; and an electromagnetic valve configured to activate by pulling a trigger. In response to opening the electromagnetic valve, pressurized air from the assembly drives a pellet out of the gun body.Type: GrantFiled: September 2, 2016Date of Patent: October 24, 2017Inventor: Jui-Fu Tseng
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Patent number: 9631890Abstract: A canister of propellant releasably mounted in a stock of an airsoft gun includes a head threadedly secured to a first end of a case and including an intermediate annular groove; a plug threadedly fastened in the head and including first, second, and third O-rings; a plunger disposed through the plug into the head and including a first receptacle, a lateral first opening through the first receptacle, a second receptacle, a lateral second opening through the second receptacle, and an annular flange; a cap threadedly secured to plug and including a bottom opening communicating with the case, and a biasing member biased between a bottom and the flange; a passage member threadedly secured to the case; and a check valve threadedly fastened in the passage member.Type: GrantFiled: June 28, 2015Date of Patent: April 25, 2017Inventor: Jui-Fu Tseng
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Patent number: 9593905Abstract: A containing device includes a container; a compressed gas source in the container and including a sealed opening; a channel member having a first end releasably secured to a first end of the container and including through holes; a hollow closure member releasably secured to a second end of the container; a hollow striker including a projection and a hollow needle spaced from the opening; and two opposite apertures through a periphery of the projection; a cap releasably secured to a second end of the channel member; a biasing member biased between the cap and an internal space of the striker; and a pull ring inserted through the through holes and the apertures to hold the striker in place in a locked position. A pulling of the pull ring out of the channel member can trigger a release of high-pressure gas.Type: GrantFiled: April 21, 2015Date of Patent: March 14, 2017Inventor: Jui-Fu Tseng
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Patent number: 9581417Abstract: A net throwing device is disguised as a security camera and includes a casing including a front chamber, inclined tubes around the front chamber, a rear inner tube having an aperture member, and a rear outer tube having an aperture element; an air canister fastened in the inner tube; a spring biased piercing member slidably disposed between the front chamber and the air canister; a spring biased lock pin in the piercing member and having an end disposed in the aperture member to lock the piercing member in a locked position; a spring biased rod member through the aperture element; a cam member engaging the rod member; an external antenna; a receiver; a processor electrically connected to the receiver; an electric motor electrically connected to the processor; and a net received in the front chamber and including edge weights in the tubes respectively.Type: GrantFiled: April 22, 2016Date of Patent: February 28, 2017Inventor: Jui-Fu Tseng
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Publication number: 20160363414Abstract: A firing mechanism of an airsoft gun includes, in combination a gun body; a sleeve in a rear portion of the gun body; a discharge tube in a front end of the sleeve; a retaining ring on the front end of the sleeve; at least one assembly, each including an air canister and a piercing member facing the air canister; a locking member put on a rear end of the sleeve and configured to rotate to cause the piercing member to pierce the air canister of each of the at least one assembly; and an electromagnetic valve configured to activate by pulling a trigger. In response to opening the electromagnetic valve, pressurized air from the assembly drives a pellet out of the gun body.Type: ApplicationFiled: September 2, 2016Publication date: December 15, 2016Inventor: Jui-Fu Tseng
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Patent number: 9500435Abstract: A powered dispenser includes a case including a central hole and a hopper in a channel for receiving spherical particles; a support disc including two opposite arc openings, an arc flange, a projection on the arc flange, and a first bossed hole; a rotatable disk including a second bossed hole put on the first bossed hole, two opposite pegs disposed through the openings, a curved slot between an edge of the rotatable disk and the second bossed hole with the projection moveably disposed therein, and striking members; a biasing member in a space defined between the flange and the edge of the rotatable disk; a cap including a hollow peg member in the first bossed hole; a spring biased retaining ring urging against the hole, and the retaining ring including two opposite sloped cuts with the pegs slidably disposed therein; a rotatable shaft; and a trigger switch.Type: GrantFiled: April 21, 2015Date of Patent: November 22, 2016Inventor: Jui-Fu Tseng
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Publication number: 20160238350Abstract: A net throwing device is disguised as a security camera and includes a casing including a front chamber, inclined tubes around the front chamber, a rear inner tube having an aperture member, and a rear outer tube having an aperture element; an air canister fastened in the inner tube; a spring biased piercing member slidably disposed between the front chamber and the air canister; a spring biased lock pin in the piercing member and having an end disposed in the aperture member to lock the piercing member in a locked position; a spring biased rod member through the aperture element; a cam member engaging the rod member; an external antenna; a receiver; a processor electrically connected to the receiver; an electric motor electrically connected to the processor; and a net received in the front chamber and including edge weights in the tubes respectively.Type: ApplicationFiled: April 22, 2016Publication date: August 18, 2016Inventor: Jui-Fu Tseng
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Publication number: 20160047620Abstract: A receiver of an automatic air rifle includes a front sliding sleeve including upper and lower recesses; a main biasing member secured to the front sliding sleeve and the charging handle respectively; a roller; an L-shaped rod; a rear diversion channel through the front sliding sleeve; a rear sliding sleeve including pivotal upper and lower hooks; a main tube through the rear sliding sleeve and including a rear inlet and an annular flange proximate the rear inlet; a gas piston disposed forwardly of the main tube; an inlet member at a rear end of the gas piston; and an auxiliary biasing member put on the main tube and biased between the front sliding sleeve and the rear sliding sleeve. The air rifle is capable of firing in semi-automatic or fully automatic position.Type: ApplicationFiled: May 4, 2015Publication date: February 18, 2016Inventor: Jui-Fu Tseng
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Publication number: 20150369577Abstract: A non-lethal projectile for dispersing a load with a predetermined time delay after being firing is provided with a casing including an externally threaded extension; a receptacle in the casing and including an internally threaded portion and a distal opening; a gas canister in the receptacle; a sleeve including an externally threaded first extension and secured to the internally threaded portion, and an externally threaded second extension; a needle moveably, partially disposed in the sleeve in proximity to the gas canister; a cylindrical fin assembly including surface slits, spring actuated fins each having a trough, an internally threaded recess secured to the externally threaded extension and the externally threaded second extension, and a through hole; an anchoring member put on the needle and having a locking member in the troughs for preventing the fins from projecting out of the slits; and a base engaged the needle.Type: ApplicationFiled: August 27, 2015Publication date: December 24, 2015Inventor: Jui-Fu Tseng
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Publication number: 20150300771Abstract: A firing mechanism of an airsoft gun includes a canister of propellant having an outlet member. The firing mechanism includes a pivotal follower engaged with a trigger; and a valve assembly including a spring biased sliding rod urging against the follower, an O-ring put on the sliding rod for blocking the outlet member, a well on the sliding rod, a chamber having an outlet element, a passage interconnecting the outlet member and the chamber, and a ball seated on the outlet element for blocking the chamber; a channel in communication with the chamber; and a spring biased stopper for closing a forward end of the channel. In response to pulling the trigger, the pivotal follower rotates to move the sliding member rearward so that propellant supplied by the canister may push a projectile out of the airsoft gun.Type: ApplicationFiled: June 28, 2015Publication date: October 22, 2015Inventor: Jui-Fu Tseng
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Publication number: 20150300770Abstract: A canister of propellant releasably mounted in a stock of an airsoft gun includes a head threadedly secured to a first end of a case and including an intermediate annular groove; a plug threadedly fastened in the head and including first, second, and third O-rings; a plunger disposed through the plug into the head and including a first receptacle, a lateral first opening through the first receptacle, a second receptacle, a lateral second opening through the second receptacle, and an annular flange; a cap threadedly secured to plug and including a bottom opening communicating with the case, and a biasing member biased between a bottom and the flange; a passage member threadedly secured to the case; and a check valve threadedly fastened in the passage member.Type: ApplicationFiled: June 28, 2015Publication date: October 22, 2015Inventor: Jui-Fu Tseng
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Patent number: 9157694Abstract: A firing device is provided with a housing, a sleeve in the housing, an air canister in the sleeve, a mechanism, and a pushing assembly. Pushing of the sliding cap forward exposes the push button and moves the spring depressible detent to the first depression, a pressing of the push button pushes down the sliding member, the pressing does not push down the sliding member further after the sliding member clearing the second though hole, the sharp member is pushed rearward by the spring biased cylindrical member to open the air canister by piercing, pressurized air released from the air canister pushes the mechanism including the sliding member back to a position prior to the pressing, the pressurized air travels forward to be stopped by the diaphragm with air pressure being further increased, and the diaphragm will be broken after the air pressure increase exceeds a predetermined pressure.Type: GrantFiled: October 26, 2013Date of Patent: October 13, 2015Assignee: STARJET Technologies Co., LTDInventor: Jui-Fu Tseng