Within Cylinder Having Diameter Larger Than Projector Barrel Patents (Class 124/67)
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Patent number: 5575270Abstract: 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: GrantFiled: November 23, 1994Date of Patent: November 19, 1996Assignee: Industrias el Gamo, S.A.Inventor: Francisco Casas-Salva
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Patent number: 5570676Abstract: 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: GrantFiled: March 10, 1995Date of Patent: November 5, 1996Inventor: Thomas D. Gore
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Patent number: 5531210Abstract: A toy gun includes a housing, a forwardly biased plunger assembly in the housing, first and second rack gears in the housing, and a transmission gear assembly in the housing. The transmission gear assembly is operative for communicating rearward movement of the second rack gear to the first rack gear in order to move the first rack gear and the plunger assembly into rearward cocked positions in the housing. The transmission gear assembly is adapted so that once the first rack gear and the plunger assembly have been moved to the cocked positions thereof in housing, the second rack gear is freely movable without interference from the transmission gear assembly and the first rack gear, and so that the first rack gear and the plunger assembly are freely releasable to the uncocked positions for causing the plunger assembly to produce a blast of compressed air in order to launch a projectile from the housing.Type: GrantFiled: November 16, 1994Date of Patent: July 2, 1996Assignee: Hasbro, Inc.Inventors: Daniel G. Meiser, Randolph C. Stewart
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Patent number: 5522374Abstract: Air operated apparatus for successively launching a plurality of projectiles are disclosed. The apparatus employ novel constructions for multi-projectile magazines wherein projectiles may be launched from either the inner passageways of a plurality of barrels, or from the exteriors of the barrels. The magazines are designed for economical production as a molded unit. The apparatus are adapted so that an air pump may be cocked and the magazine advanced in a single operation through the use of a hand drawn slide mechanism. The invention further provides novel mechanisms for intermittent sealing of an air pump discharge port with successively selected projectile launching barrels on the magazine.Type: GrantFiled: February 9, 1993Date of Patent: June 4, 1996Inventor: Richard A. Clayton
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Patent number: 5377655Abstract: A projectile-propelling toy includes a first port and a first propulsion mechanism for propelling a projectile via the first port as well as a second port and a second propulsion mechanism for propelling a projectile via the second port. The first and second propulsion mechanisms are separate and independent, at least one of the first and second propulsion mechanisms being pneumatic. A kit for the toy includes a housing having an engaging element for releasably receiving a first weapon and a cavity for telescopically receiving at least a major portion of a second weapon. A magazine is adapted to be releasably received in functional engagement by each of the first weapon, the second weapon and the housing. One weapon includes a manually-driven pneumatic propulsion mechanism for propelling a projectile, a spring-driven pneumatic propulsion mechanism for propelling a projectile, and a selector for manually selecting which of the pneumatic propulsion mechanisms is operative at a given time.Type: GrantFiled: December 31, 1992Date of Patent: January 3, 1995Assignee: Toy Biz, Inc.Inventor: Avi Arad
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Patent number: 5241944Abstract: A toy weapon adapted to shoot out sponge-like pellets impregnated with water. The weapon includes a launching chamber above which is vertically mounted a gravity-feed cartridge loaded with a stack of pellets. Also mounted above the chamber is a pump-operated water supply coupled to the cartridge whereby when the pump is actuated, water is then sprayed into the cartridge to impregnate the pellets therein. Projecting forwardly from the chamber is a gun barrel, while projecting rearwardly therefrom is a cylinder. Slidable within the cylinder is a spring-biased piston joined to a piston rod that extends from the rear end of the cylinder and terminates in a handle.Type: GrantFiled: August 24, 1992Date of Patent: September 7, 1993Inventor: Mark Rappaport
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Patent number: 5224464Abstract: A toy archery set comprising a bow; a barrel rigidly attached to the bow; a movable plunger which has finger grooves and is longitudinally disposed within the barrel; a spring operably coupled to the plunger and to the barrel providing a projecting force either directly or through a pneumatic cylinder; and an arrow constructed of foam having fletching, a tip designed to adhere to a target, and a means to attach the arrow to the bow.Type: GrantFiled: October 28, 1991Date of Patent: July 6, 1993Assignee: Tonka CorporationInventors: Richard T. Burnham, John Sutyak
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Patent number: 5199411Abstract: A toy missile projector comprises a tubular missile body, an outer tube and an inner tube placed within the missile body such that the outer tube is fixed to an annular groove on the missile body and maintains contact with a reset spring located in the annular groove. A piston is mounted in the lower end of the missile body, a compression spring is placed in an axial hole at the end of the piston rod, a spring and a movable pin is placed in a longitudinal key way on the outer wall of the piston body such that the movable pin is aligned with a stop hole on the missile body so that when a launching button at the stop hole is triggered, the compression spring is released and the piston rod is displaced rapidly for firing. The missile body can be formed in three sections--first, intermediate, and last outer tubes, and assembled with a guide tube and a piston rod and with a reset spring placed between the guide tube and the last outer tube.Type: GrantFiled: September 19, 1991Date of Patent: April 6, 1993Inventor: Yung-Chi Tsao
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Patent number: 5193517Abstract: A gas spring airgun in which the power system comprises a main cylinder which contains a piston and a hollow dummy piston. The piston is a sliding fit within the main cylinder while the dummy piston is fixed relative to the main cylinder, and is of considerably small diameter. A collar is located in the space between the dummy piston and the piston and is substantially fixed relative to the piston and slidable relative to the dummy piston, when the system is pressurized.Type: GrantFiled: June 10, 1991Date of Patent: March 16, 1993Assignee: Utec B.V.Inventors: Hugh F. Taylor, David R. Theobald
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Patent number: 5186156Abstract: An air operated toy gun for successively launching a plurality of projectiles is disclosed. Said gun utilizes a movable air nozzle for successive engagement with a plurality of projectile launching barrels. The gun may be used with darts or other projectiles adapted to form a seal with the launching barrels.Type: GrantFiled: November 18, 1991Date of Patent: February 16, 1993Inventor: Richard A. Clayton
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Patent number: 5169253Abstract: A writing instrument with a projector mechanism includes a pen holder with an upper section for holding either a pen fixing blocking with a refill for writing purposes or a toy missile or other article for fun. The pen holder also includes a lower section for installation of a projector mechanism composed of a plunger, a push rod, a compression spring, a rtainer ring and a puller. By pulling the puller outwardly the plunger and the push rod are displaced, and the compression spring is compressed. Then release of the puller can result in a thrust force in the pen holder to project the toy missile or other article in the upper section of the pen holder for fun. Alternatively placing the pen fixing block with a refill in the upper section of the pen holder, the writing instrument can be used for writing.Type: GrantFiled: September 19, 1991Date of Patent: December 8, 1992Inventor: Yung-Chi Tsao
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Patent number: 5150701Abstract: The body 12 of an air gun accommodates a removable magazine 16 immediately behind the breech 14, for pellets to be loaded one at a time from the magazine into the breech. The magazine comprises a drum 33 which is rotatably mounted within a housing 31 and comprises ten pellet-holding slots 38 around its axis. A torsion spring 42 urges rotation of the drum in indexing steps as controlled by an escapement mechanism comprising a rocking pawl 50. The pawl is displaced against the action of a return spring 58 by a plunger 60 which projects from a cocking arm 22 of a conventional cocking mechanism of the gun; the plunger is arranged to actuate the escapement only towards the end of a cocking stroke of the arm 22. A loading ram/air transfer tube 28 is reciprocated, in effecting the cocking action, to withdraw from one slot 38 in the drum and enter a next slot to load a fresh pellet into the breech.Type: GrantFiled: May 3, 1991Date of Patent: September 29, 1992Assignee: B.S.A. Guns (UK) LimitedInventors: Roger D. Wackrow, Kenneth W. White, Harold C. Jones
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Patent number: 5129383Abstract: Improved loading mechanism for weapons which principally consists of a piston (15), driven by a spring (16) and an electric driving motor (4) with reduction gear, characterized in that the spring (16) is compressed by the piston (15) of which the compression movement which results in putting the aforementioned spring (16) under tension is controlled by the piston (15) working together with a continuous traction device.Type: GrantFiled: January 18, 1990Date of Patent: July 14, 1992Inventor: Jean Rutten
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Patent number: 4986251Abstract: A magazine for an air gun comprises an outer case, a circular pellet carrier rotatably mounted in the outer case, and a cover that is pivotally mounted on the outer case. A coil spring resiliently biases the pellet carrier towards an end position. To load the magazine, the cover is pivoted to cause the pellet carrier to rotate to another end position, and a soft lead airgun pellet is then dropped in through a hole in the outer cover into a pellet chamber in the pellet carrier. The outer cover is then rotated, allowing successive pellets to be dropped into successive pellet chambers within the pellet carrier. In use, a probe pushes the first pellet out of the magazine into the breech of an airgun, and following this, the magazine automatically indexes under spring pressure to present the next pellet ready for loading. The pellets themselves serve as part of the indexing mechanism. The transfer probe places the pellets accurately in position within the breech of the airgun.Type: GrantFiled: May 5, 1989Date of Patent: January 22, 1991Assignee: Utec B. V.Inventor: Stephen J. Lilley
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Patent number: 4923182Abstract: An anti-vibration damping device for the main spring of a piston air gun comprises an insert body extending longitudinally within the spring coils and a locating portion at one end on which an end of the spring seats, the insert body including resilient limb formations which are radially expanded to engage the interior of some of the spring coils.Type: GrantFiled: June 9, 1988Date of Patent: May 8, 1990Assignee: Webley & Scott LimitedInventor: Harold F. Resuggan
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Patent number: 4899717Abstract: An airgun in which a spring-operated piston is provided for compressing air n a chamber, wherein arming of the gun is accomplished by a transport mechanism which acts on the piston to compress the spring, with the transport mechanism being driven by a battery-powered electric motor, the transport mechanism, electric motor and battery being incorporated within the airgun.Type: GrantFiled: December 2, 1987Date of Patent: February 13, 1990Assignee: Centre D'Innovations Et De Recherches Appliquers, societe anonymeInventors: Leon Rutten, Jean Rutten
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Patent number: 4883042Abstract: An air gun of the break-barrel type has a spring-urged piston working in a bore of a cylinder. The piston has two axially spaced latched cocking positions in the cylinder; an intermediate position in which the spring is only partially compressed, and a fully cocked position in which the spring is fully compressed. The piston is held in each of its latched positions by the co-operation, in turn, of a sear with a one of a pair of axially spaced grooves in the piston. Initial downward swivelling of the barrel causes a cocking bar pivotally connected to the barrel to engage in the rearward groove and force the piston backwards to its intermediate position. The gun can then be fired with reduced power or alternatively a second cocking stroke performed in which the cocking bar engages in the forward groove and urges the piston to its fully cocked position. Instead of having a breaking breech, the gun may operate by a cocking lever. The piston may have more than one latch intermediate position in the bore.Type: GrantFiled: March 10, 1988Date of Patent: November 28, 1989Assignee: BSA Guns (UK) LimitedInventor: Roger D. Wackrow
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Patent number: 4864759Abstract: A toy firearm shaped like a sidearm--in particular a dagger--incorporating a compressed-air system for firing light-weight projectiles, that can be projected in accordance with the orientation of the blade, and wherein the compressed-air firing system is incorporated in the handle of the sidearm, and can be operated with the aid of a lateral control attachment originating at the movable part comprising both the cylinder and a perforated attachment for propelling the projectile and acting as an air vent.Type: GrantFiled: June 6, 1988Date of Patent: September 12, 1989Inventor: Giampiero Ferri
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Patent number: 4850328Abstract: An air gun, especially an air pistol, with a piston (2) movable in a weapon housing in a pressure chamber and adapted to be brought to a cocking position against a spring pressure by a cocking arrangement (7, 8, 9) that engages said piston (2). The barrel (6) has a rear barrel opening (5) in which is insertable an elongated profiled bullet (4). In the weapon housing is situated a bullet magazine (16) for several consecutively arranged bullets (4), the inner space (17) of the bullet magazine is at least approximately adapted to the profile of the bullets and the bullets are prestressed in the direction toward the barrel opening (5) via a feed device (19, 20).Type: GrantFiled: June 1, 1987Date of Patent: July 25, 1989Assignee: Fritz Barthelmes KGInventor: Gerhard Sindel
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Patent number: 4850329Abstract: A firing mechanism for an air weapon in which air is compressed in a cylinder and expelled through a discharge port in the cylinder to propel a projectile along a barrel by a piston executing a firing stroke. The mechanism comprises a piston slidably located within a cylinder with the crown of the piston facing towards the discharge port. A spring urges the piston towards the discharge port. A bobbin is located behind the piston crown, which is axially movable with the piston during at least a portion of the firing stroke and is axially movable relative to the piston at the end of the firing stroke.Type: GrantFiled: January 11, 1988Date of Patent: July 25, 1989Assignee: UTEC B.V.Inventors: Hugh F. Taylor, David R. Theobald, Derek J. C. Bernard
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Patent number: 4848307Abstract: A toy air pistol for launching missile bullets includes chiefly an air-compression mechanism and a triggering mechanism, a revolving cylinder, and a barrel. The revolving cylinder has several cartridge chambers for loading missile bullets. The air hole of the air-compression mechanism can be aligned with any one of the cartridge chambers. The triggering mechanism releases the compression spring and piston to generate a powerful air pressure out of the air hole to launch the missile bullet out of the barrel. The missile bullet has a trumpet-shaped tail and an air chamber extending almost the whole length of the body thereof for receiving the air pressure as a propelling force for the missile bullet. The front end of the missile bullet may be mounted with an explosive charge or a protective cap so as to have the bullet look and act like a real one, or to increase its safety during play.Type: GrantFiled: May 19, 1988Date of Patent: July 18, 1989Inventor: Yung-Chi Tsao
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Patent number: 4843751Abstract: The cylinder, with an axial attachment and axially perforated, is fixed in the firearm casing; a sliding element forms a trigger and housing for the magazine for the projectiles, the said element being subjected to the action of a return spring in the direction opposite to that of the manual action on the trigger; a thrust connection is provided between the said piston and the said element in order to actuate, through the travel of the trigger when pressed, the loading of the spring and, at the end of the said travel, the release of the piston.Type: GrantFiled: June 6, 1988Date of Patent: July 4, 1989Inventor: Giampiero Ferri
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Patent number: 4834059Abstract: A gun, which compresses a spring during cocking and uses the air accelerated by the spring to propel a projectile during firing, incorporates several safety features. The size of the handle makes it impossible for children to operate. The trigger cannot be moved to its firing position unless the gun is cocked, the gun housing is closed, and a manual safety button is actuated during firing. To prevent unintended projectiles from being inserted into the barrel, the front of the barrel is blocked except during firing and the rear of the barrel is blocked at all times by either the projectile-carrying magazine or a barrel block.Type: GrantFiled: March 16, 1988Date of Patent: May 30, 1989Assignee: LJN Toys, Ltd.Inventors: Harry R. Moorhouse, Robert M. Jensen, Tat K. Chung
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Patent number: 4756297Abstract: An air weapon comprising a hand grip and a generally tubular-shaped housing connected thereto having front and rear ends confining a tubular pressure chamber. The pressure chamber is of non-cylindrical configuration thereby providing a pressure chamber of increased volume over that obtainable with a cylindrically shaped chamber without detrimentally affecting the external appearance of the weapon. A cylindrical barrel for discharging a projectile from the weapon is positioned within and coaxial to the pressure chamber. A piston conforming to the configuration of the pressure chamber and adapted to move within the pressure chamber along its axis surrounds the barrel with its piston head facing the rear end of the housing. A piston spring also surrounds the barrel and is positioned against the piston head at one of its ends and against the front end of the housing at its other end.Type: GrantFiled: November 15, 1982Date of Patent: July 12, 1988Assignee: Fritz Barthelmes KGInventor: Gerhard Sindel
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Patent number: 4732136Abstract: A toy-arm imitating a portable fire-arm, operating by compressed air for the pneumatic launch of a light bullet, made up of two reciprocally movable carriers, one first of which comprises a cylinder lined up and communicating with the barrel and a reaction bearing for a spring acting on a piston to urge it into such a direction as to compress the air in the cylinder for the pneumatic launch of the bullet; the second carrier comprises an elastic tooth which hooks up the piston to drag it along while loading the spring, and the first carrier has a profile capable of gradually acting on the elastic tooth at the end of the relative stroke between the two carriers, until causing the release of the piston and its trip thanks to the loaded spring.Type: GrantFiled: April 7, 1986Date of Patent: March 22, 1988Inventor: Giampiero Ferri
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Patent number: 4709686Abstract: An air rifle having a firing mechanism (12) which comprises a variable volume gas chamber (52) behind a piston (28) which moves within an outer cylinder (26) in front of a rear cylinder (36). The gas chamber (52) is defined between the piston and the rear cylinder and is sealingly closed. When the rifle is cocked, the piston is latched in its most rearward position in which the gas in the chamber (52) is most highly compressed. The trigger releases the piston latch, causing the piston to be driven forward as the gas expands in the variable volume chamber compressing the air in the outer cylinder (26) in front of the piston (28) until it exceeds a threshold which fires the pellet out of the breech. The semi-permanent charge of gas in the chamber (52) thus constitutes a pneumatic spring. A safety device is provided to relieve pressure in the chamber (52) before the firing mechanism can be dismantled.Type: GrantFiled: November 16, 1983Date of Patent: December 1, 1987Assignee: Utec B.V.Inventors: Hugh F. Taylor, David R. Theobald
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Patent number: 4708341Abstract: An archery practice/exercise device for use with a bow including a handleriser portion and a bow string. The practice/exercise device includes a cylinder having a closure member for partially closing a forward end of the cylinder so as to delimit an orifice through which air may be expelled from the cylinder. A piston is mounted for movement within the cylinder and an arrow-like shaft having a forward end is coupled to the piston and extends outwardly from a rear end of the cylinder. A fastening arrangement is disposed proximate to the rear end of the cylinder and secured thereto for enabling rigid attachment of the cylinder to the handleriser of the bow whereupon attachment to the handleriser, the cylinder extends forwardly of the handleriser for stabilizing the bow.Type: GrantFiled: November 6, 1986Date of Patent: November 24, 1987Assignee: Indoor Archery International CorporationInventor: Theodore G. Paraskevakos
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Patent number: 4649893Abstract: In a compressed-air weapon, for the simplification of original production and repair and for the simplification of stockholding it is proposed that the trigger, the counter-hook-engagement system, the trigger return spring and the trigger safety catch system if provided are combined into one prefabricated construction unit which can be united as a whole with the cylinder tube and the stock.Type: GrantFiled: February 22, 1985Date of Patent: March 17, 1987Assignee: Mayer & Grammelspacher DIANAWERKInventor: Walter Heitz
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Patent number: 4625706Abstract: An elongated horizontal barrel, transfer tube and cylinder are provided in vertically laterally stacked relation with the barrel disposed uppermost and the cylinder disposed lowermost. Closure structure is provided for the rear end of the barrel and the rear end of the barrel and transfer tube are in closed communication with each other while the forward ends of the transfer tube and cylinder are in closed communication with each other. The closure structure is shiftable to a position opening the rear end of the barrel and the rear end of the barrel may receive a blow dart therein after which the rear end of the barrel is closed. A piston is freely slidable within the cylinder and elastic tubing structure is provided for yieldingly biasing the piston forwardly within the cylinder and cocking structure is provided whereby the piston may be manually displaced rearwardly in the cylinder against the biasing action of the force structure.Type: GrantFiled: August 19, 1985Date of Patent: December 2, 1986Inventor: John E. Turner, Jr.
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Patent number: 4623145Abstract: An archery practice/exercise device for use with a bow including a handleriser portion and a bow string. The practice/exercise device includes a cylinder having a closure member for partially closing a forward end of the cylinder so as to delimit an orifice through which air may be expelled from the cylinder. A piston is mounted for movement within the cylinder and an arrow-like shaft having a forward end is coupled to the piston and extends outwardly from a rear end of the cylinder. A fastening arrangement is disposed proximate to the rear end of the cylinder and secured thereto for enabling rigid attachment of the cylinder to the handleriser of the bow whereupon attachment to the handleriser, the cylinder extends forwardly of the handleriser for stabilizing the bow.Type: GrantFiled: February 29, 1984Date of Patent: November 18, 1986Assignee: Indoor Archery, IncorporatedInventor: Theodore G. Paraskevakos
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Patent number: 4367723Abstract: A spring-energized air pistol or other air gun has cocking mechanism, typically lever actuated, e.g. utilizing break action of the gun barrel itself, for urging the air piston to the fully cocked position which operates in at least two stages, two or more strokes of the lever being required for full cocking. Initial strokes of the mechanism move the piston to one or more successive intermediate positions and, in some applications, the gun may be fired from the or an intermediate position enabling it to be selectively used at less than full power.Type: GrantFiled: January 5, 1981Date of Patent: January 11, 1983Assignee: Webley and Scott LimitedInventor: Harold F. Resuggan
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Patent number: 4289109Abstract: A toy pistol formed by molding from relatively rigid plastic material and comprising a hollow elongated frame portion having a handle depending from one end, a composite tubular barrel and coaxial cylinder rearward thereof and of larger diameter than said barrel and supported within the frame, a piston slidable in the cylinder and having a rearwardly extending piston rod surrounded by a compression spring and having a transverse shoulder member adjacent but spaced from the piston, a trigger pivotally mounted adjacent the handle and having a sear engageable with the shoulder member when the piston is in rearward cocked position and the spring is compressed, and a simulated hollow breech slide slidable longitudinally upon the upper rearward part of the frame portion above the handle and operable when moved rearwardly to retract the piston rod and piston to cocked position to compress the spring and permit the sear to engage the transverse shoulder as aforesaid.Type: GrantFiled: April 25, 1980Date of Patent: September 15, 1981Assignee: Arco Industries Ltd.Inventor: Bruce M. D'Andrade
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Patent number: 4282852Abstract: A compressed air rifle comprising a cylinder containing a freely slidable piston that divides the interior of the cylinder into a rear chamber adapted to be charged with a compressed gas and a forward chamber defining an air compression chamber, a unidirectional valve for charging the rear chamber with compressed gas, a member mounted on the forward end of the cylinder having a rifle barrel guide and a projectile insertion opening, an open-ended rifle barrel coaxial with said cylinder slidably mounted in the guide for movement between a first loading position wherein it may receive in its forward open end a projectile inserted through the insertion opening, a second position wherein it has been thrust into said cylinder sufficiently to push the piston into locking engagement with a trigger controlled latch, and a third firing position wherein it closes the insertion opening and its rear open end is substantially at the forward end of the compression chamber whereby when said trigger is actuated to release theType: GrantFiled: June 13, 1979Date of Patent: August 11, 1981Inventor: Julio A. Omana
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Patent number: 4261321Abstract: A projectile propelling assembly for use with a bow includes an elongated guide member for guiding a projectile to be shot by the bow. The guide member is mounted on the bow by a support and in its mounted position the guide member extends longitudinally in the direction of the shooting motion of the bowstring. In one embodiment of the invention the tension for the bow is provided by a spring, and in another embodiment, a pair of flexible bow arms is employed. A channel is provided for movement of a fluid and is operatively associated with the guide member. The bowstring is operatively associated with the tension source of the bow, the channel, and the guide member. The drawing movement of the bowstring increases the tension in the bow and when the bowstring is released, the tension of the bow acts on the fluid which in turn acts on the projectile to propel it from the bow.Type: GrantFiled: April 23, 1979Date of Patent: April 14, 1981Inventor: Jim Z. Nishioka
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Patent number: 4212285Abstract: A one-piece dart comprising a shaft having an integral suction cup at its forward end and an integral, air actuable, propelling element at its rearward end, the dart being molded from a soft, flexible plastic material. A spring activated air operated dart gun including a dart barrel having a non-circular cross section uniform throughout the length of the barrel, the propelling element on the dart being complementary to the dart barrel so that the propelling element makes a substantially air tight seal with the dart barrel. A dart barrel and a dart propelling element which are substantially square. An air operated dart gun having a barrier for positively preventing physical contact between an air displacing piston and the dart, and for making physical contact between the piston and a foreign object in the dart barrel virtually impossible. A piston provided with a central conical element facing the dart barrel.Type: GrantFiled: January 31, 1978Date of Patent: July 15, 1980Assignee: Placo Products CompanyInventors: Bernard J. Cagan, Kenneth L. McQuary
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Patent number: 4165730Abstract: A spring support tube for the two helical compression springs loading a piston in a compressed air firearm consisting of at least two tube portions freely movable relatively to one another in the axial direction. The portions can be of the same diameter and disposed one behind the other in the annular space between the springs or being in sliding connection with each other. The sliding connection can be either telescopic or in a tongue and slot arrangement.Type: GrantFiled: July 6, 1977Date of Patent: August 28, 1979Assignee: J. G. Anschutz GmbHInventors: Ludwig Jaedicke, Dieter Straub
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Patent number: 4067309Abstract: A trigger mechanism for an air gun with a cocking mechanism has a trigger and a trigger lever, actuated by the trigger, which retains a tensioned member of the air gun. The trigger lever is coupled with the cocking mechanism by intermediate members in such a manner that when the cocking mechanism is returned to its position of rest, it causes the overlap of the trigger lever over the member retained thereby to be reduced during the last portion of its path of travel.Type: GrantFiled: April 22, 1976Date of Patent: January 10, 1978Assignee: Feinwerkbau, Westinger & Altenburger KGInventor: Edwin Wohrstein
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Patent number: 4004566Abstract: A clip and indexing mechanism for a gas-operated gun which affords the visible inspection and incremental advancement and insertion of projectiles from the clip into the chamber of the gun. The clip is formed with a long narrow rectangular web across which are positioned parallel spaced cylindrical cavities, each containing a projectile and each cavity being individually sealed by a mechanically rupturable seal. The gun includes an indexing mechanism for indexing the clip but reciprocation of the breech block to withdraw a bolt or obturator from the clip, index the clip and then force the next projectile through the seal and into the bore also cocks the hammer and further reciprocation before firing the projectile then in the barrel does not operate the indexing mechanism. Releasing the hammer resets the indexing mechanism to index the clip.Type: GrantFiled: April 14, 1975Date of Patent: January 25, 1977Assignee: Minnesota Mining and Manufacturing CompanyInventor: Earl Lee Fischer
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Patent number: 4002156Abstract: There is herein disclosed an air gun having a breech block assembly, including a plurality of mating molded plastic members defining a guideway for a pivotally mounted projectile transfer member, movable during cocking of the gun from a firing position holding a projectile in alignment with the gun barrel to a loading position to receive another projectile and back to the firing position, with sealing means being provided to effect sealing engagement between the projectile transfer member and the molded plastic members of the breech block assembly in the firing position whereat the projectile is transferred from the projectile transfer member to a firing chamber provided in one of the molded plastic members by air pressure at the beginning of a firing cycle and held in the firing chamber in sealing engagement therewithin during an intermediate portion of the firing cycle and then discharged from the firing chamber through the gun barrel upon application of predetermined high pressure air toward the end of theType: GrantFiled: May 14, 1975Date of Patent: January 11, 1977Assignee: Victor Comptometer CorporationInventor: Earl L. Fischer
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Patent number: 3999533Abstract: A novel adapter handle is attached to the existing pumping handle of an air rifle to increase the pumping leverage. The adapter handle has a forward portion which is disposed beneath and is attached to the existing pumping handle and a rear portion disposed to one side of the existing trigger guard. The rear portion includes cut-outs around the trigger guard providing finger clearance to the trigger and safety. The rear portion terminates in a hand grip which is grasped by the user to pump the rifle.Type: GrantFiled: December 29, 1975Date of Patent: December 28, 1976Inventor: Harry F. Buckner
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Patent number: 3958549Abstract: An air rifle comprising a tubular casing in which the barrel is mounted. The bullet or other projectile is propelled by the escape of compressed air from a compression chamber produced by a forceful spring actuated movement of a piston having a deformable piston head which strikes a channelled funnel-shaped cap member which forms gas tight closure for the forward end of a compression cylinder within which the piston moves and which also forms a seal around the projectile seat in the shooting position of the compression cylinder. The compression cylinder slideably engages the walls of the tubular casing which has a normally open rear end to which is detachably connected a closure member or rear body which serves as an abutment for the spring and also to support the trigger mechanism and a trigger guard. The rifle is cocked by actuation of a lever mechanism which is pivotally connected to the tubular casing and to the rear body and includes a draw bar which is pivoted to the cap member.Type: GrantFiled: April 30, 1974Date of Patent: May 25, 1976Assignee: Forenade FabriksverkenInventors: Lennart J. I. Johansson, Bjorn W. Lindqvist, Wallberg, Eric V.
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Patent number: 3958550Abstract: An air rifle having a casing with a compression cylinder displaceably housed therein, and including a spring actuated piston, the cylinder having a front end wall with a transverse bore, tensioning structure for compressing the spring pivotally connected to the underside of the rifle, comprising a tension lever and a tension draw bar, the tension draw bar having a head portion projecting into the bore to enable the tension draw bar to be pivoted with respect to the axis of the bore, and plug elements supporting the head portion disposed on each side of the head portion so that the plug elements bear against the head portion and against the casing.Type: GrantFiled: April 30, 1974Date of Patent: May 25, 1976Assignee: Forenade FabriksverkenInventors: Lennart J. I. Johansson, Bjorn W. Lindqvist, Eric V. Wallberg
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Patent number: 3951038Abstract: 47. A device for firing a projectile from a firing position comprising:A barrel for guiding the projectile from the device,Firing means operatively associated with the projectile in the firing position and being operative to fire the projectile through the barrel and being mounted in spaced relationship to the barrel,Said firing means comprising an air cylinder and a firing chamber and an air flow passage connecting said cylinder to said firing chamber,One of said barrel and said firing means being axially movable relative to the other between a firing position and a loading position,A separate movable connecting member mounted between and in line with said barrel and said firing means and connecting said barrel to said firing means in the firing position,And means for moving said member transversely between the firing position in line with said barrel and a loading position spaced outwardly therefrom.Type: GrantFiled: July 7, 1965Date of Patent: April 20, 1976Assignee: Victor Comptometer CorporationInventor: Jules Edmond Van Langenhoven
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Patent number: 3951126Abstract: A compressed gas- or air-operated firearm, comprises a gun stock with a gun sleeve affixed to the gun stock and with a gun barrel having an associated compression cylinder adjacent the inner end thereof with a spring-actuated piston movable therein and an associated trigger mechanism which is movably supported within the gun sleeve by roller bearing structure. A power accumulator is arranged between the relatively movable parts and it biases the parts into a neutral position and includes structure for absorbing the reaction force due to the movement of the piston during operation of the weapon.Type: GrantFiled: June 3, 1974Date of Patent: April 20, 1976Assignee: J. G. Anschutz GmbHInventor: Arthur Rau