Within Cylinder Having Diameter Larger Than Projector Barrel Patents (Class 124/67)
  • Patent number: 11536530
    Abstract: A hybrid molded assembly includes a trigger comprising a trigger skeleton and a trigger molded portion that at least partially encompasses the trigger skeleton, a hammer comprising a hammer skeleton and a hammer molded portion that at least partially encompasses the hammer skeleton, and a disconnector comprising a disconnector skeleton and a disconnector molded portion that at least partially encompasses the disconnector skeleton.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: December 27, 2022
    Inventors: James Matthew Underwood, Larry Cullen Underwood
  • Patent number: 11371799
    Abstract: An example simulated weapon includes a delayed trigger and a pellet ejector. The delayed trigger includes a chamber and a piston slidable between armed and triggering positions. A spring biases the piston towards the triggering position. A locking member releasably locks the piston in the armed position. Release of the piston by the locking member causes the spring to move the piston from the armed position to the triggering position. The pellet ejector is coupled to the delay trigger to be triggered by the delay trigger in the triggering position. The pellet ejector includes a pressure chamber to receive a pressurized fluid and a pellet chamber to receive pellets. A valve is disposed between the pressure chamber and the pellet chamber communicates pressure from the pressure chamber to the pellet chamber. A barrel that extends through the pressure chamber is connected to the pellet chamber to eject the pellets.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: June 28, 2022
    Assignee: AIRSOFT INNOVATIONS INC.
    Inventors: Carlton Ie Loong Chong, Robin Stoddart
  • Patent number: 11353282
    Abstract: An airgun for use with a projectile supply is described. A cam surface of the airgun and a bolt positioner of the airgun are configured so that rotation from a firing position to a reloading position causes a cam surface of the airgun to drive the bolt positioner through a passageway of the projectile supply to drive a projectile in the passageway to a position where pressurized gas in the firing location will thrust the projectile through the bore.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: June 7, 2022
    Assignee: Crosman Corporation
    Inventors: Kenneth A. Call, Jeffrey D. Hanson, Eric A. St. Phillips
  • Patent number: 11118858
    Abstract: An air gun includes a gun barrel through which a bore passes from a breech end to a muzzle end, a piston, and a spring housed within a main housing. The spring biases the piston forward towards the gun barrel. An air compression chamber is defined by a cylindrical interior surface and a forward face of the piston. A cocking mechanism enables a user to forcibly retract the piston rearward from the gun barrel against the spring bias to a cocked position. The main housing includes a rearward cavity that accepts the rearward retraction of at least a portion of the piston, which portion may include a coating of paint. A first viewing port into the rearward cavity may have a translucent cover and visually indicates a state of rearward retraction of the piston.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: September 14, 2021
    Inventor: Joshua Charles Harrison
  • Patent number: 11029124
    Abstract: Break barrel airguns are provided with a loading system that uses the cocking action of the break barrel type airgun to load projectiles from a magazine held by a magazine holder into a shuttle system that is positioned by the magazine holder during loader and moved to a position aligned with the barrel during firing. The loading system has a resilient barrier between the magazine holder and the shuttle that reduces the risks of loading errors caused by adhesion between the bolt and a pellet.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: June 8, 2021
    Assignee: Crosman Corporation
    Inventor: Kenneth Call
  • Patent number: 11002508
    Abstract: Airguns are provided. In one aspect, a shuttle having a breech bushing therein is moved between a cocking position where a projectile is loaded into a breach bushing channel and a firing position where the breech bushing channel is located between a port from which compressed air flows firing and a barrel opening into which the compressed air advances the projectile. The barrel has a barrel guide surface at the back barrel face, wherein the breech bushing has a shaped surface facing the barrel and wherein the breech bushing shaped surface and the barrel guide surface are configured to interact as the barrel is moved from the cocked position to the firing position to urge the breach insert to move within the shuttle passageway in a manner that reduces the extent of any misalignment between the breech bushing channel and the opening.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: May 11, 2021
    Assignee: Crosman Corporation
    Inventors: James Miller, Jeffrey W. Mock
  • Patent number: 10928154
    Abstract: A projectile launcher that toy ball projectiles. The projectile launcher has a launch tube and a slide tube that interconnect in a telescoping manner. A handle is affixed to the free end of the slide tube. The handle is free to rotate relative the launch tube. In this manner, the handle can be rotated while the slide tube telescopes with the launch tube. A bow structure is affixed to the launch tube. The bow structure has opposing arms that extend away from the launch tube in the manner of an archery bow. An elastic bow string extends between the free ends of the bow structure arms and the handle. During use, a toy ball projectile is positioned in the launch tube. The slide tube is retracted relative the launch tube. The movement of the slide tube stretches the elastic bow string and biases the slide tube forward.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: February 23, 2021
    Assignee: Ao Jie Plastic Toys Factory Ltd.
    Inventor: Chi Hang Kam
  • Patent number: 10883784
    Abstract: An air gun is provided with a magazine safety system and methods of making the air gun safe utilizing the magazine. The air gun includes a magazine well protrusion (e.g., floorplate) configured to extend into the magazine well when no magazine is properly inserted into and received in the magazine well. In the extended position, the protrusion prevents actuation of the main valve of the air gun. When a magazine is properly inserted into the magazine well, the protrusion is pushed into a recessed or depressed position by the interaction of the magazine with the magazine well such that the protrusion does not prevent actuation of the main valve of the air gun.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: January 5, 2021
    Assignee: UMAREX USA, INC.
    Inventor: Stephen R. Lamboy
  • Patent number: 10760873
    Abstract: The present disclosure relates to the field of air rifles, and particularly to a gear-type air rifle gear cock structure, including a air cylinder, a gear cock controller, a rack, and a rack reset spring, the gear cock controller is fixedly connected with the air cylinder, and the rack is arranged between the air cylinder and the gear cock controller; the air cylinder includes a air cylinder body, a piston, and a magazine, the air cylinder body has a hollow structure with an air chamber inside, the piston is arranged in the air chamber inside the air cylinder body, the magazine communicates with the air chamber through an outlet pipe; two ends of the rack are a piston fixing end and a spring fixing end respectively, the piston fixing end is connected with the piston through a lug arranged at the piston fixing end, the spring fixing end is connected with the rack reset spring, two ends of the rack reset spring are respectively fixed on the rack and the air cylinder.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: September 1, 2020
    Assignee: XISICO USA, INC
    Inventors: Wei Sun, Yecheng Wu, Xiaoqiang Shen, Guohua Jin, Dingfu Tang, Ye Sun, Xiaoping Ji
  • Patent number: 10731941
    Abstract: A kickback structure for a toy gun, the toy gun has a body portion and a barrel connected to the barrel, the handle portion is provided with the handle and the trigger assembly, and has a chamber inside. A piston is pushed forward by a first spring, and the a front and the back of the body portion are respectively provided with an aiming base and a fixed base, and the aiming base is provided with a through hole at the center, and the through hole is provided with a sliding sleeve, and the sliding sleeve is internally coupled between the sliding sleeve and the fixed base. A pushing rod is normally stretched by the second spring.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: August 4, 2020
    Assignee: LI CHENG TECHNIQUE BUSINESS COMPANY
    Inventor: Yu-Cheng Lin
  • Patent number: 10386154
    Abstract: Techniques and componentry are disclosed for an air gun with a cocking linkage shoe. The air gun includes a barrel pivotally attached to a cylinder. Attached to the barrel is a linkage. The linkage is operatively coupled to a piston within the cylinder and includes a lever and a shoe. The lever has a first end attached to the barrel and a second end that includes a first surface having a concave or convex shape. The shoe is attached to the lever and operatively connected to the piston. The shoe includes a second surface having a concave or convex shape in tangential contact with the first surface of the lever. The air gun further includes a trigger mechanism configured to release the piston in response to operating the trigger mechanism.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: August 20, 2019
    Assignee: Sig Sauer, Inc.
    Inventors: Krzysztof J. Kras, Justin D. Heckert
  • Patent number: 10288375
    Abstract: An air gun and methods of manufacture are provided. The air gun includes a barrel block pivotally attached to a compression fork. The barrel block includes two lateral wedges, one extending from each side of the barrel block. The wedges interact with complementary surfaces on the compression fork. This interaction reduces both lateral and vertical movement of the barrel resulting in greater accuracy and reduced need for re-sighting the air gun.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: May 14, 2019
    Assignee: Sig Sauer, Inc.
    Inventors: Sidney A. Spreadbury, III, Justin Daniel Heckert, Krzysztof J. Kras
  • Patent number: 10030933
    Abstract: A gas spring assembly includes an interior piston tube disposed within an interior pressure chamber of a piston. A bushing is slideably disposed between an annular wall of the piston and the interior piston tube. A catch is attached to the interior pressure tube, and includes a body having a cylindrical portion defining a circular cross section perpendicular to and concentric with a longitudinal axis of the piston. The body of the catch includes an exterior surface defining an outer diameter. A bore extends along a bore axis into the cylindrical portion of the body, and defines a circular cross section having a bore diameter, perpendicular to and concentric with the bore axis. The bore diameter of the bore is less than the outer diameter of the cylindrical portion of the body. The catch is formed by plunging an end mill into the cylindrical portion of the catch.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: July 24, 2018
    Assignee: Thomas Gore Living Trust
    Inventor: Thomas Gore
  • Patent number: 9605924
    Abstract: A compressed gas gun with a cocking mechanism that provides a mechanical advantage in compressing a mainspring, while providing a two stage loading and cocking action that accesses and seals a breech through utilization of an intermediate cocking member.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: March 28, 2017
    Inventor: John A. McCaslin
  • Patent number: 9596775
    Abstract: A buffer module and a portable electronic device using the same are provided. The buffer module comprises a buffer component and a base. The buffer component comprises a protrusion. The base has a gas vent and a buffer recess corresponding to the protrusion.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: March 14, 2017
    Assignee: WISTRON CORPORATION
    Inventors: Chia-Ching Lee, Ta-Chun Hsiung, Min-Hao Tang, Jhih-Ming Chen
  • Patent number: 9573285
    Abstract: A log saw machine includes a first arm, a second arm parallel to the first arm, a shaft having a first end and an opposite second end, and a circular knife fixed on the shaft. The first end of the shaft is rotatably installed on the first arm. The second end of the shaft is rotatably installed on the second arm. The circular knife is positioned between the first and second arms, and the plane of the circular knife is parallel to the extending direction of the first and second arms.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: February 21, 2017
    Assignee: Universal Tissue Technology SRL
    Inventor: Bertoli Barsotti Giovanni
  • Patent number: 9004013
    Abstract: A gundog training tool prevents gun shyness by gradually allowing a pup to adapt to the sound of a gunshot. A pop gun shoots treats upon creating a simulated gunshot so that the dog grows used to the sound of a gunshot and creates positive reinforcement rewarded by the treat. As the pup learns, a charge in a housing is introduced to provide a simulated gunshot that expels a treat that trains the dog to feel excitement at the sound and smell of a gunshot. The size of the charge adjusts to create louder simulated gunshots as the pup learns so that the pup is prepared for introduction to actual gunshots, such as from a shotgun shooting at a bird.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: April 14, 2015
    Assignee: EB Partners
    Inventors: James C. Bianchi, Robert W. Holland
  • Patent number: 8800541
    Abstract: An electric toy gun includes a gun body carrying a piston set and a gear set having a first gearwheel provided with a side pin and rotatable to move the piston of the piston set, the gear set is arranged above the axis of movement of the piston of the piston set, a backlash vibration mechanism for producing a backlash vibration when the electric toy gun fires a bullet, and an attached cartridge carrier, which simulates the cartridge feeding operation of a real gun. The backlash vibration mechanism includes a connection block arranged on the axis of movement of the piston of the piston set, a weight fixedly connected to the bottom side of the connection block beneath the axis of movement of the piston.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: August 12, 2014
    Inventor: Shih-Che Hu
  • Patent number: 8662063
    Abstract: An electric toy gun includes a gun body carrying a piston set and a gear set having a first gearwheel provided with a side pin and rotatable to move the piston of the piston set, and an attached cartridge carrier, which includes a propelling member movable back and forth by the pin of the first gearwheel, a swivel hook member turnable back and forth by the propelling member, a cartridge rack hung on the swivel hook member and movable back and forth with the swivel hook member to simulate the cartridge feeding operation of a real gun and a return spring for returning the propelling member.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: March 4, 2014
    Inventor: Shih-Che Hu
  • Patent number: 8453633
    Abstract: A spring-piston airsoft gun includes a cylinder-and-piston assembly disposed in a barrel to force air through a muzzle end to make a shooting action, and a coil spring disposed to exert a biasing action to drive a piston head of the cylinder-and-piston assembly when changed from a compressed state to a released state. Front and rear anchor shanks are disposed for respectively mounting front and rear coil segments of the coil spring. A major shell and a minor ring are sleeved on the rear anchor shank to permit the coil spring to be sleeved thereon. The minor ring is in frictional contact with and angularly moveable relative to the major shell such that, when the coil spring is released to expand to the released state, the rear coil segment is tensed to drag the minor ring to angularly move therewith so as to minimize the frictional force therebetween.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: June 4, 2013
    Inventor: Ching-Li Tsai
  • Patent number: 8297269
    Abstract: A gun bolt transmission mechanism used in an electric toy gun is disclosed to include a driving member pivotally mounted in the gun body of the electric toy gun at one side of a bolt body that accommodates a piston set, and a push rod located on a gear set for moving the driving member to push the bolt body backwards during rotation of the gear set and for enabling the bolt body to be returned after rotation of the gear set through a predetermined angle to disengage the push rod from the driving member. Thus, the bolt body simulates the motion of a real gun and the movement of the piston set does not interfere with the movement of the bolt body.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: October 30, 2012
    Inventor: Shih-Che Hu
  • Patent number: 8146577
    Abstract: An electric toy gun having therein a power break control mechanism consisting of an actuator, a power break control set and a swinging block for breaking off power supply upon triggering of the trigger when the clip is empty. When the clip is empty and when the trigger is pressed, the actuator is forced by a spring-loaded push rod at the bullet outlet of the clip to move the swinging block and the power break control set, causing a power break holder to be moved away from a power contact holder, and therefore power supply is disconnected, avoiding waste of power supply and component damage.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: April 3, 2012
    Inventor: Shih-Che Hu
  • Patent number: 8087405
    Abstract: A projectile launcher for launching soft projectiles. The projectile launcher features a pump assembly having a cylinder and piston. The piston includes a pump grip so that a pressure charge is generated when the user moves the piston. The pressure charge is released into a chamber which contains a soft projectile. The chamber includes a radius bend joining a projectile receiving orifice to a projectile discharging orifice. The pressure charge is introduced proximate the apex of the radius bend.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: January 3, 2012
    Inventor: Jeff Mitchell
  • Patent number: 7975683
    Abstract: A paintball marker using a piston and compression spring mounted in an air focus tube for generating compressed air for launching a paintball down a barrel. A trigger and sear are used to catch the compression spring when it is compressed to control the launching of the paintball. Exterior pull handles mounted behind the marker, and slideably mounted on the barrel are described for compressing the spring. Also, a pivotally mounted barrel is provided as another embodiment for compressing the spring.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: July 12, 2011
    Assignee: Kee Action Sports, LLC
    Inventors: Steve Williams, Cole Krebs, Ho Bun Choi
  • Patent number: 7975682
    Abstract: A duplex control structure of toy gun includes a main body (3), a control portion (1), a transmission portion (2), and a motor (4). The main body (3) further consists of a left and right main bodies (3a), (3b), a barrel (31), two motor's positioning plates (32a) and (32b), a multiplicity of supporting shaft rods (33), (34), a left and right handle portions (35a), (35b), check plates (36a), (36b), and two sliding ways (37a), (37b). The control portion (1) further consists of a trigger (11), a control rod (12), a propping up plate (13), a brake (14), a slider rod (15), a positioning plate (25), a pull knob (17), and a power switch (18). The transmission portion (2) consists of a gun machine socket (21), a piston (22), springs (23), (24), a positioning plate (25), a check piece (26), a clip piece (27), a small transmission gear (28), and a large transmission gear (29). The motor (4) is connected to a DC power supply.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: July 12, 2011
    Inventor: Chung-Kuan Yang
  • Patent number: 7963281
    Abstract: This invention is a motion control mechanism for use in electric toy guns. The mechanism includes a gear set, a piston set that is inside the electric toy gun's body and driven by the said gear set, a primary repositioning spring that is between the said piston set and the toy gun's rear end, and the repositioning set that is installed on the gun body, and moves backward when driven by the said piston set. The said repositioning set is fixed to the piston set, and will move backward when driven by the gear set. It will then reposition itself by the force of primary repositioning spring. The electric toy guns with this invention have the following advantageous features: Since it has a repositioning set, and air release holes, it provides for motions that are more similar to those of real guns. Thus it is more suited for military training and lasts longer.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: June 21, 2011
    Assignee: Yick Fung Industrial International Limited
    Inventor: Jackie Chun Chung Pong
  • Patent number: 7946283
    Abstract: The present invention relates to a toy gun mechanism with a sliding bolt assembly that closely resembles a real gun when the toy gun is fired and comprises a housing, a motor, a gear assembly, a bolt assembly, a trigger assembly and a latch. The gear assembly is mounted in the housing and is connected to and driven by the motor. The bolt assembly is mounted slidably in the housing and is selectively moved to a cocked position by the gear assembly. The trigger assembly releases the bolt assembly and drives air from the bolt assembly as the bolt assembly moves forward.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: May 24, 2011
    Inventors: Yi-Jung Lee, Li-Te Cheng
  • Patent number: 7677235
    Abstract: A toy gun includes a firing mechanism activated to cause rapid movement of a pneumatic piston to cause rapid ingress of air into a cartridge to cause firing of a soft projectile. A release mechanism causes ejection of spent cartridges from the gun after firing.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: March 16, 2010
    Assignee: Buzz Bee Toys (H.K.) Co., Limited
    Inventor: Jeffrey C. Zimmerman
  • Publication number: 20080078369
    Abstract: An airgun has a pneumatic mechanism that is driven by an electrical motor to provide a blast of air, wherein the pneumatic mechanism is in a non-coaxial and angled position relative to the barrel, and wherein the air is delivered to the barrel via a preferably angled intermediate conduit. Spatial separation of the pneumatic mechanism from the axis of the barrel allows for substantially simplified constructions and use of light-weight material, and further provides a wide variety of handgun designs as the only space requirement for the projectile delivery portion is the barrel. Therefore, in one especially preferred aspect of the inventive subject matter, the airgun is configured a revolver.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 3, 2008
    Inventor: Wai Ka Yeung
  • Publication number: 20070283942
    Abstract: A piston structure of a toy gun is disclosed. An air induction passage and at least an air inlet are formed on the piston. In addition, a control device is applied to the piston for correspondingly opening or closing the air inlet according to the movement of the piston. As a result, much more air can be sucked into an air storage chamber immediately after the backward movement of the piston. Therefore, the air capacity of the air storage chamber of the cylinder tube can be increased so as to produce larger air pressure for pushing the bullet to the outside of the toy gun, thereby simulating the recoil effect of the real shooting and improving the shooting performance of the toy gun.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 13, 2007
    Inventors: Chiao-Chih Tai, Szu-Ming Huang, Chia-Chen Wang, Chih-Ming Tien
  • Publication number: 20070283941
    Abstract: A cylinder tube of a toy gun is disclosed. A cylinder head is mounted on the cylinder tube of the toy gun. A tube passage is formed to penetrate through the cylinder head. Several air induction passages are formed circularly around the tube passage. A control device is applied to the air induction passages for opening or closing the air induction passages according to the forward or backward movement of the piston. As a result, much more air can be sucked into the air storage chamber immediately after the backward movement of the piston. Accordingly, the air capacity of the cylinder tube can be increased so as to produce larger air pressure for pushing the bullet to the outside of the toy gun, thereby improving the shooting performance of the toy gun and providing the simulated recoil effect, which simulates the real shooting.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 13, 2007
    Inventors: Chiao-Chih Tai, Szu-Ming Huang, Chia-Chen Wang, Chih-Ming Tien
  • Patent number: 7297043
    Abstract: The toy rocket launcher includes an elongated launch tube and a pusher assembly which slides inside the launch tube in an air-tight relationship. A launch head assembly is rotatably mounted on a forward end of the launch tube and has a plurality of launch ports for receiving toy rockets. The forward end of the launch tube assembly includes a small opening which mates with one of a plurality of air passageways in the launch head assembly. Each air passageway connects with a different launch port. As the head assembly is rotated by hand on the launch tube, a flow of air from the launch tube produced by user action on the pusher assembly is directed to successive launch ports, thereby launching successive toy rockets from the launch head assembly.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: November 20, 2007
    Assignee: D & S Toys Company Ltd.
    Inventor: Ying Lung Lam
  • Patent number: 7287526
    Abstract: The invention is directed to a toy projectile launcher for discharging a toy projectile attached thereto that may include a housing, a hollow outer cylinder, and a compression member that may be disposed on the housing, and slidably received within the hollow outer cylinder. The compression member may include a fluid passage therethrough in fluid communication with the interior of the outer cylinder. The interior of the outer cylinder may be moveable between an uncocked position and a cocked position such that movement of the outer cylinder from the cocked position toward the uncocked position compresses air in the interior of the outer cylinder, with the compressed air being delivered to through the fluid passage to a toy projectile attached to the toy projectile launcher. The toy projectile launcher may also include a spring that may bias the outer cylinder from the cocked position toward the uncocked position.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: October 30, 2007
    Assignee: Hasbro, Inc.
    Inventors: Amanda M. Bligh, Raymond A. Mead, Robert L. Brown
  • Patent number: 7191775
    Abstract: A gun replica includes a grip portion, a gun butt portion detachably connected to the grip portion and a cylinder portion received in a barrel portion which is detachably connected to the grip portion and having a piston movably received inside the cylinder portion so as to press a recoil mechanism and to compress air inside the cylinder of the cylinder portion to fire a bullet from the cartridge.
    Type: Grant
    Filed: November 12, 2005
    Date of Patent: March 20, 2007
    Inventor: Wen-Ho Lo
  • Patent number: 7100592
    Abstract: A toy gun includes a driven lever, a driven member, a pivot member, a push block, a drive mechanism, a triggering device, and a housing. Thus, the toy gun can shoot the plastic cartridges successively in an automatically controlled manner by the motor and the power switch and can also shoot the plastic cartridges individually in a manual manner by pulling the pull member and pressing the trigger, thereby enhancing the versatility of the toy gun, and thereby increasing the playing amusement of the toy gun.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: September 5, 2006
    Assignee: Unicorn Hobby Corp.
    Inventor: Chung-Kuan Yang
  • Patent number: 6557542
    Abstract: A gas accumulator is provided for attachment to a gun having a gun body, a compressed gas chamber in the gun body, and a compressed gas power source. The accumulator comprises a body portion defining a gas accumulator chamber and connector means for connecting the accumulator releasably to the gun body so that the gas chamber in the gun body is in communication with the accumulator chamber. Compression means are provided in the accumulator chamber which is compressed when the accumulator chamber receives gas under pressure, the compression means forcing gas from the accumulator chamber into the gas chamber when the gun is fired.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: May 6, 2003
    Inventor: Robert G. Orr
  • Patent number: 6470871
    Abstract: A bullet loading device for an air gun comprises a removable loader (50) including a housing (1) wherein a revolving, small bullet carrying drum (2) is provided with axial through holes (3) uniformly distributed around the turning axis of the drum (2), each hole (3) being apt to house a bullet, the housing (1) being provided with an oscillating driving member (5) to revolve the drum (2) to sweep one angular interval, and a retainer to hold each of the axial holes (3) in alignment with a barrel of the gun, the gun integrating a slide (4) linearly guided on the housing (1) and kinematically linked to the oscillating driving member (5), which is provided with resilient driving catch (6) being apt to in turn engage stops of the drum (2) in order to thus revolve it in only one sense.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: October 29, 2002
    Assignee: Industrias, El Gamo, SA
    Inventor: Francisco Casas-Salva
  • Patent number: 6371099
    Abstract: A paint ball gun includes a gun barrel mounted on a gun handle. The gun barrel is formed with parallel propelling and recuperator chambers for respectively receiving a propelling member and a recuperating unit. A connecting rod interconnects the propelling member and a recuperator member such that the propelling member is movable together with the recuperator member. A manually operable pull unit is mounted in the propelling chamber posteriorly of the propelling member, and includes a pull rod with a front rod portion formed with an elongated slot and a rear rod portion which extends out of the propelling chamber. The connecting rod extends through and is slidable along the elongated slot. The pull unit further has a biasing spring for biasing the pull rod forward.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: April 16, 2002
    Inventor: Yi-Hsin Lee
  • Patent number: 5944006
    Abstract: A toy gun is disclosed. In one embodiment, the toy gun includes a housing, a barrel coupled to the housing for movement between retracted and extended positions, and a stock for movement between retracted and extended positions. In another embodiment, the toy gun includes a chamber; a device for forcing air from the chamber; a barrel coupled to the housing for movement between retracted and extended positions; and a seal for directing air forced from the chamber through the barrel.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: August 31, 1999
    Assignee: Hasbro, Inc.
    Inventors: Michael A. Moore, Teresa A. Hartman, David R. Griffin, Kenneth L. Miller
  • Patent number: 5901693
    Abstract: A toy gun for launching a foam projectile from a launch station that is offset from the axis of the launcher. The gun includes a pneumatic launcher having a retractable plunger that reciprocates in a cylinder to define a compression chamber. One or more air ports are provided to communicate air from the compression chamber to the launch station in order to eject a projectile therefrom. The plunger incorporates a hollow shaft having transparent ends which are aligned with the transparent compression chamber, thus providing a continuous line of sight through said shaft and the compression chamber for aiming the gun toward an intended target.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: May 11, 1999
    Assignee: Hasbro, Inc.
    Inventor: Joseph J. Smith
  • Patent number: 5775312
    Abstract: A spring air gun includes a reciprocable piston and a slide for cocking the piston. The slide is movable between forward and rearward positions. A piston rod is connected to the slide and is slidably mounted within a piston tube which is connected to the piston. A pair of springs are concentrically mounted on the piston tube, and the forward end of each spring engages the piston. The rearward end of the inner spring engages the slide, and the rearward end of the outer spring engages the frame of the gun. A detent maintains the slide in the forward position, and a sear maintains the piston in the cocked position and is engageable with the detent for preventing the slide from moving rearwardly until the gun is fired. The gun is fired by pulling a trigger, which releases the sear from the piston. The detent can then be moved to allow the slide to be moved rearwardly to cock the piston. When the slide is not in the forward position, the detent prevents the trigger from being pulled.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: July 7, 1998
    Assignee: Crosman Corporation
    Inventors: Todd D. Wilkinson, Kenton H. Barker, James Grassi
  • Patent number: 5722382
    Abstract: An improved loading plate for a repeat-air rifle for pellets or ammunition including a loading plate positioned vertically in front of a compression chamber of the rifle, a first rectangular, slightly curved plate coinciding with a curvature of a barrel of the rifle, and a second rectangular, slightly curved plate coinciding with the curvature of a lower part of the rifle. The loading plate is of a rectangular shape and has a circular borehole. The loading plate has a first tongue extending from an upper part thereof so as to cover an exit of the pellets or ammunition. The loading plate has a second tongue extending from a lower part thereof having a central borehole therein so as to receive an oppressing bolt for limiting a movement of the loading plate. A spring is received by a plurality of longitudinal lodging for urging an upward movement of the loading plate.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: March 3, 1998
    Inventor: Hector Mendoza Orozco
  • Patent number: 5711285
    Abstract: There is disclosed a wrist-mounted projectile launcher having pivoting launch tubes and a handle that remain in inoperative and convenient positions until it is desired to launch projectiles. The launch tubes and handle are spring-loaded and moved to operative positions simply by pushing a button. A selector valve mechanism can be used to select which of the tubes will launch a projectile.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: January 27, 1998
    Assignee: Hasbro, Inc.
    Inventors: Randolph C. Stewart, Daniel G. Meiser, Robert L. Brown
  • Patent number: 5711284
    Abstract: A new and improved paint ball projectile attachment for bows comprising a housing secured to the bow. The housing has a first chamber and a second chamber therein. The first chamber is integral with the second chamber. The first chamber has an opening extending out a front end of the housing. The second chamber has an opening extending out a back end of the housing. The housing has a top end having a downwardly extending chamber adjoining the first chamber. A bin is secured to the top end of the housing. The bin has an opening in a lower portion thereof. The opening aligns with the downwardly extending chamber of the top end. Included in the device is a firing mechanism. A plurality of paint balls are positioned within the bin. The plurality of paint balls are dispensed through the opening in the bin. The paint balls are singlely positioned within the first chamber for ejection out the opening therein by the firing mechanism.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: January 27, 1998
    Inventor: Duane Keenan, Jr.
  • Patent number: 5701878
    Abstract: The toy gun disclosed includes a trigger mechanism for launching projectiles from a flexible tail or other appendage. The tail bends and compressed gas is released in response to pulling the trigger to its full extent so that the projectile is launched when the flexible tail is bent.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: December 30, 1997
    Assignee: Hasbro, Inc.
    Inventors: Michael A. Moore, David R. Griffin, Jeffery Dubose
  • Patent number: 5666937
    Abstract: A repeat-fire pellet rifle for sport shooting including a first and second rectangular, slightly curved plate which coincides with the curve of the barrel of the gun. One of the curved plates is located on the upper section and having a central hole which can be used to fix it on the gun barrel. The second curved plate has a central hole which allows it to be fixed on a lower part of the gun barrel. A rectangular plate is located vertically at the side of the ear and compression chamber of the gun. A pellet loader, in the form of a groove, includes a window through which a pellet can be fed. A puller is provided to feed the pellet to the loading chamber.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: September 16, 1997
    Inventor: Hector Mendoza-Orozco
  • Patent number: 5645038
    Abstract: The invention provides a toy dart having a elongate body which comprises a front end in the form of a suction cup, an intermediate portion and a tubular rear end which is hollow and of an enlarged cross-section and preferably also a heavier weight. The invention also provides a toy gun for launching this toy dart, which comprises a body and an air pressurising mechanism provided by a piston and a cylinder inside the body for launching the toy dart. The cylinder has a tubular opening end over and around which the hollow rear end of the toy dart is to be fitted for launching. More specifically, the tubular end is provided by a tube which is removable to reveal another opening of the cylinder for the insertion of a conventional suction-cup toy dart having a plain shaft to be hit at a rear end by the piston.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: July 8, 1997
    Assignee: Heep Tung Manufactory Limited
    Inventor: Ka Shiu Luk
  • Patent number: 5632264
    Abstract: A gun with a pivoting barrel includes a compression tube having a forked front end and a fork member which is inserted into the front end of the compression tube. The fork member includes a cylindrical body which is inserted into the compression tube and a pair of forked arms which extend along the inside of the forked end of the compression tube. A barrel is pivotably connected to the forked ends of the fork member and the compression tube. A spring clip on the barrel engages a stud on the fork member for releasably retaining the barrel in a firing position. A cocking lever connected to the barrel is engageable with a trigger extension for preventing the trigger from being pulled when the barrel is not in the firing position.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 27, 1997
    Assignee: Crosman Corporation
    Inventors: Kenton H. Barker, Michael Cinquino, David C. Snyder
  • Patent number: 5575270
    Abstract: Improvements in hinged barrel air guns are disclosed where the air gun has a barrel 28 acting as a lever arm to compress a spring 4 attached to an axially movable piston 1 that is tightly inserted in a compression chamber 2 and has thrusting element 5 associated with the piston for compressing said spring and a safety catch 6 which locks the piston in a spring compressed position suitable for shooting. The improvements consist of producing the piston 1 in a tubular shape molded in plastic material, including a contoured end wall 8 and 11, a plate 9 resistant to wear providing a link between the piston, the thrusting element 5 and the safety catch 6, and a dense inertial element 10 integral with the tubular piston. A casing 27 completely covers the barrel body 28 except for its front and rear ends.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: November 19, 1996
    Assignee: Industrias el Gamo, S.A.
    Inventor: Francisco Casas-Salva
  • Patent number: 5570676
    Abstract: This invention is related to a kit to retrofit a mechanically spring-powered air gun to a gas spring-powered air gun, and to a self-contained gas piston for an air gun. The gas piston has a center latch which engages the center latch operated by the trigger.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: November 5, 1996
    Inventor: Thomas D. Gore