US3913553A - Air gun with removable projectile holding means - Google Patents
Air gun with removable projectile holding means Download PDFInfo
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- US3913553A US3913553A US380220A US38022073A US3913553A US 3913553 A US3913553 A US 3913553A US 380220 A US380220 A US 380220A US 38022073 A US38022073 A US 38022073A US 3913553 A US3913553 A US 3913553A
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- projectile
- projectile holding
- slot
- holding
- extending
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
- F41B11/50—Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines
- F41B11/54—Magazines for compressed-gas guns; Arrangements for feeding or loading projectiles from magazines the projectiles being stored in a rotating drum magazine
Definitions
- ABSTRACT There is herein disclosed an air gun having a manually rotatable, multiple chamber, removable, projectile holding member connected to a source of compressed air by an elastic resilient sealing sleeve.
- the projectile holding member is made of one piece of molded plas tic material having an integral shaft rotatably supporting the projectile holding member in a transverse ac cess slot in a breech block between a source of high pressure fluid and a barrel with a sealing member therebetween and a detent to enable sequential index- 37 Claims, 10 Drawing Figures U.S. Patent 0a. 21, 1975 Sheet 3 Ora 3,913,553
- the invention relates generally to guns and, more particularly, to compressed gas operated guns. While the illustrative embodiments described herein relate specifically to a pneumatic gun of the type adapted to shoot projectiles by air compressed during shooting of the gun, it is contemplated that certain of the inventive concepts may be applicable to other types of guns including both air guns and firearms or combinations thereof.
- One of the features of the present invention is the provision of a manually rotatable, multiple chamber, projectile holding means which is easily insertable in and removable from the gun. It is intended that the projectile holding means be so designed and constructed as to be very inexpensive to manufacture whereby the shooter may keep several pre-loaded projectile holding means at hand and merely replace the projectile holding means when emptied rather than reloading. From a safety standpoint, another advantage is that the projectile holding means may be removed when the gun is not in use thereby preventing any possibility of accidental discharge. Also, the projectile holding means must be manually rotated to bring a projectile into firing position so that accidental discharge is further reduced.
- Another feature of the present invention is the provision of sealing means which prevent the escape of compressed air and cause the air pressure to be utilized primarily in expelling the projectile.
- Still another feature of the present invention is the provision of a removable rotatable projectile holding means which is associated with sealing means mounted in the gun in a manner permitting relatively easy manual rotation of the projectile holding means while still obtaining maximum sealing.
- An additional feature of the present invention is the provision of a breech assembly requiring a minimum number of relatively inexpensive parts.
- FIG. 1 is a side elevational view, in cross section and with portions removed, of an air gun embodying the inventive concepts
- FIG. 2 is an enlarged cross sectional view of the breech portion of the apparatus shown in FIG. 1 showing the relationship of the parts in a transfer position;
- FIG. 3 is a cross sectional view taken along the line 3-3 in FIG. 2;
- FIG. 4 is an enlarged cross sectional view of the breech portion of the apparatus shown in FIG. 1 showing the relationship of the parts in a firing position;
- FIG. 5 is a cross sectional view taken along the line 5-5 of FIG. 4;
- FIG. 6 is an enlarged cross sectional view of an alternative and presently preferred embodiment of the inventive principles in breech apparatus shown in a transfer position;
- FIG. 7 is an enlarged cross sectional view of the apparatus of FIG. 6 in a firing position
- FIG. 8 is an enlarged cross sectional view of the apparatus of FIGS. 6-7 with parts removed.
- FIG. 9 is an enlarged cross sectional view taken along the line 99 in FIG. 6;
- FIG. 10 is a detailed view of the sealing means of the embodiment of FIGS. 6-9.
- FIG. 1 of the drawing the inventive concepts are illustratively embodied in an air gun 10 comprising a metal housing means 12 and stock means 14.
- the forward portion of the housing is tubular and divided by breech block means 16 into a barrel chamber 18 containing a barrel 20 and an air compression chamber 22 containing piston means 24 operable from a rearwardly retracted position to a forwardly extended firing position by compression spring means 26 to compress air in chamber 22 and drive a projectile from the gun through the barrel.
- a piston rod means 28 extends rearwardly and is releasably engageable by trigger means 30 in the retracted position.
- Cocking lever means 32 is provided to move the piston means rearwardly to the retracted position against the bias of the spring means 26.
- a rotatable projectile holding means 34 having a plurality of projectile chambers 36 is mounted in loading slot means 38 in the breech block means.
- a rear sealing means 40 is mounted in the air chamber against the rear of the breech block means with a forwardly extending sleeve portion engageable with the rear surface of the projectile holding means.
- a detent means 42 is cooperable with the projectile holding means to hold one of the projectile chambers in alignment with the barrel.
- a front sealing means 44 is mounted in the breech block means between the barrel and the projectile holding means. and a combination latch-detent means 46 is manually movable forwardly against the bias of spring means 48 from a rearwardly extended position retaining the projectile holding means in the loading slot to a forwardly retracted position permitting removal and replacement of the projectile holding means.
- the housing means 12 may be formed from one piece of sheet metal with a cylindrical forward portion having a welded bottom seam and a flanged bottom opening rearward portion.
- the diameter of the barrel chamber portion is less than the diameter of the air chamber portion to provide a rearwardly facing abutment shoulder 50 whereas, in the embodiment of FIGS. 6-9, the diameter is the same.
- Access slot means 52 are provided in the bottom of the housing by a transverse slot portion 54 extending circumferentially approximately 180 and a generally rectangular axially extending slot portion 56 intersecting the transverse portion along the bottom of the housing.
- the transverse portion centrally intersects the axial portion whereas, in the embodiment of FIGS.
- the transverse portion is located at the rear end of the axial portion with an abutment flange recess 58 extending circumferentially approximately 120 and a narrow rectangular shaft access opening 60 located rearwardly of the transverse portion as shown in FIG. 8.
- the access slot means may be located in other positions such as at the side or top of the housing.
- the breech block means 16 comprises a one-piece molded plastic (a modified phenylene oxide is presently preferred) support member 62 of generally cylindrical peripheral configuration, having an outside diameter generally corresponding to the inside diameter of the housing so as to be insertable therein, and a metallic retainer member 64 having an axially extending outer rim 66, welded or otherwise fixedly secured to the housing.
- a radially extending abutment flange 68 of the retainer member abuts one end of the support member which is staked in place in the housing by suitable radially inwardly extending projections (not shown).
- Centrally located front and rear bores 70, 71 extend axially through the support member and are centrally intersected by loading slot 38 which is defined by front and rear surfaces 72, 73 and an arcuate upper surface 74.
- the rear end of the barrel 0.177 inch diameter bore) is supported in the front bore with a 9 tapered inlet opening facing the loading slot to receive a .177 inch diameter projectile from the projectile holding means 34 when the gun is fired.
- a detent cavity 75 having narrow slot portions 76, 77 is provided above the loading slot.
- Front and rear shaft bearing bores 78, 79 and projectile loading and unloading recesses 80, 82 are axially aligned on opposite sides of the loading slot.
- Front and rear end surfaces 84, 86 extend transversely to the central axis and a counterbore 88 connects bore 71 to the rear surface 86.
- a detent cavity 88 in the bottom of the support member opens downwardly above housing slot portion 56 and rearwardly into loading slot 38.
- An axially extending guideway is provided along the detent cavity by a flat upper surface 90, side wall surfaces 92, 94 and bottom surfaces 96, 98 of the support member as well as arcuate inner surface portions 100, 102 of the housing as shown in FIG. 9.
- An axially extending arcuate shaft groove 103 is centrally located along the upper surface 90.
- a spring well 104 and abutment wall 105 are provided at the forward end of the detent cavity and a radially extending forwardly and downwardly opening shaft slot 106 is located across the loading slot opposite the detent cavity.
- the rear of the front bore portion 70 is inwardly stepped and counterbored to provide a rearwardly facing annular seal seat 108 and a forwardly facing barrel abutment surface 110.
- the rear of bore 71 is countersunk to provide a radially outwardly rearwardly inclined rear abutment surface 112 for similarly inclined flange portion 68 of the retainer member.
- the rear peripheral surface is undercut to provide an axially extending cylindrical abutment surface 114 for the outer rim 66 of the retainer member.
- An inner annular rim 166 on the retainer member extends into rear bore portion 7; and terminates in an annular forwardly facing abutment 118.
- a radially protruding abutment flange extends downwardly through the housing flange recess 58 radially beyond at least a portion of the cylinder chamber 36, as shown in FIGS. 6-7, and is separated into two portions extending circumferentially approximately 30 on opposite sides of the shaft slot 106 and shaft access opening 60 by a central access slot 121. It is contemplated that the loading slot 38 may be located at the side or the top of the gun as well as at the bottom.
- the projectile holding means 34 comprises a relatively small (e.g., 0.375 X 0.860 inch), one-piece, molded plastic (a modified phenylene oxide is presently preferred), cylindrical member having five axially extending projectile chambers 36 equally circumferentially spaced therein and a central support shaft bore 122.
- a rearwardly facing abutment shoulder means 124 is provided at the rear of each projectile chamber by a counterbore or a countersink to abut and hold a skirted hollow lead pellet 126 of lead or the like against forward movement until a predetermined maximum air pressure is applied thereto.
- the presently preferred shoulder means is in the form of a counterbore (0.199 to 0.201 inch diameter) connected to the chamber (0.180 to 0.182 inch diameter) by a 30 chamfer.
- axially extending rib means 127 there being three equally circumferentially spaced ribs illustrated in FIGS. 3 and 5, are provided in the projectile chambers and frictionally engage the projectile to prevent inadvertent rearward or forward displacement of the projectile prior to firing. Either a BB type or pellet type projectile may be used and the ribs will hold a BB from displacement in either direction.
- the presently pre ferred rib means is in the form of a triangularly-shaped projection protruding radially inwardly 0.006 inch, having an included angle of 90, and extending rearwardly from the front of the chamber approximately .28 inch with the rear end being outwardly tapered into the chamber wall by a smooth large diameter (e.g., 2.0 inch) curved surface or extending the full length of the chamber to the counterbore to frictionally engage the peripheral surface of the projectile.
- a shaft 128 supports the cylindrical member for rotation about an axis parallel to and radially offset from the central axis of the barrel a distance such as to enable the projectile chambers to be sequentially aligned with the barrel.
- the shaft 128 is removably slidably mounted in bearing bores 78, 79 and extends forwardly to the front of the barrel chamber where it is held against axial forward movement by a removable end plug 130.
- the cylinder member is rotatable and axially slidable on the shaft.
- Axially extending detent grooves 132 are located opposite each chamber and finger grooves 134 may be provided around the periphery of the cylindrical member to facilitate manual application of rotative forces.
- the shaft 128 is shortened with an enlarged front end 136 being rotatably supported in the detent cavity between the detent means 46 and shaft groove 103 in the support member 62.
- the reduced rear end 138 is rotatably confined in shaft slot 106.
- the cylindrical member is fixed to the shaft and rotatably and axially displaceable therewith. The periphery of the cylindrical member may be knurled to facilitate manual application of rotative forces.
- the detent means 42 is in the form of a U-shaped leaf spring element having leg portions 139, 140 confined in slot portions 76, 77 of the detent cavity and a connecting portion 141 extending therebetween with a centrally located nipple 142 resiliently engaging the periphery of the projectile cylinder.
- the nipple is seated in the adjacent peripheral groove 132 which permits axial sliding movement of the projectile holding member relative to the detent means.
- the combined latchdetent means 46 is in the form of a molded plastic (a modified phenylene oxide being presently preferred) slide member 143 having a pair of rearwardly extending detent projections 144, 146 equally radially and circumferentially spaced relative to the projectile chambers 36 so as to be axially alignable with and abuttingly receivable in adjacent chambers when one of the other chambers is aligned with the barrel.
- the side surfaces 147 of the projections 144, 146 are inclined to cause a camming action when positive forces are applied to the projectile holding member.
- axially extending opposite guide grooves 148, 150 slidably receive the adjacent edges 152, 154 of the housing access slot portion 56.
- Axially extending opposite rib portions 156, 158 are slidably received in guide slots 160, 162.
- a central rib portion 164 is slidably received in the guide groove defined by surfaces 90, 92, 94.
- the length of the slide member is such as to permit it to be assembled through the loading slot 38 and it is retained in the assembled position by frictional engagement with the support member, the housing, and the spring means 48.
- An upwardly and rearwardly opening arcuate shaft bearing seat 166 is centrally formed along the upper surface of the slide member and terminates forwardly in a transverse abutment wall 168.
- a spring well 170 is provided forwardly of the abutment wall for the rear portion of compression spring 48 which is frictionally retained therein by transverse detent ribs (not shown).
- a serrated contoured gripping surface 174 is provided at the bottom of the slide member to facilitate manual finger-type application of forwardly directed forces to move the slide member forwardly against the bias of the compression spring.
- the rear sealing means 40 comprises a selfsupporting annular one-piece molded plastic (polyurethane being presently preferred) member having a radially extending base portion and an axially extending sleeve portion 182 which is axially aligned with the barrel.
- a central bore 184 provides an air passage for delivery of high pressure from the air chamber to the aligned one of the projectile chambers.
- a sealing lip 186 at the front end of the sleeve portion is sealingly engageable with the rear surface of the projectile holding member circumjacent an aligned one of the projectile chambers.
- Base portion 180 terminates in an annular rim 188 having its outer peripheral surface frictionally seated on the inner periphery of the housing and the adjacent forwardly facing side surface 190 abuttingly and sealingly engaging the adjoining side surface of the breech block means.
- the adjacent rearwardly facing side surface 192 engages the piston in the forwardly extended position so that the base portion 180 acts both as an air chamber seal and a piston cushion.
- a pin 193 on the piston enters the bore 184 in the forwardly extended position to reduce chamber volume as much as possible.
- An intermediate flange portion 194 of reduced thickness relative to the base portion 180 joins the sleeve portion to the base portion and hingedly supports and permits axial displacement of the sleeve portion relative to the base portion which is accommodated by the axial air gap between the front surface of the flange portion and the rear surface of the breech block means.
- the sleeve portion 182 has a constant diameter outer peripheral surface and is radially spaced from the adjoining surfaces of the breech block means throughout its length.
- a forwardly facing annular groove I96 is located opposite the counterbore portion 88 of bore 71 to provide sufficient clearance between the seal and the breech block means and to provide sufficient flexibility in the connecting flange to enable free swinging movement of the sleeve portion between a rearwardly retracted normal unstressed position and a forwardly extended sealing position resulting from forwardly directed forces on the rear surface of the connecting flange applied as air is compressed in chamber 22 during firing of the gun.
- the arrangement is such that the sealing lip is axially rear wardly spaced from the rear surface of the projectile holding member in the normal position.
- air pressure moves the sleeve portion and sealing lip forwardly into engagement with the projectile holding member which is also moved forwardly by air pressure into abutting engagement with the rearwardly facing side surface of the loading slot.
- FIGS. 6-9 a more satisfactory sealing arrangement has been obtained by providing a rearwardly opening annular recess 200 (FIG. 10) in the base portion 180 with the front surfaces of the base portion and flange portion being continuous and engageable with the similarly contoured adjoining surface of the retaiing member 64 of breech block means 16.
- a retaining lip 202 of larger outside diameter than the inside diameter of the inner rim 116 is engageable with the forwardly facing abutment surface 118, FIG. 8, to restrict rearward movement of the sleeve portion.
- the front surface of the sealing lip is normally located in the loading slot axially forwardly of abutment surface 73 so as to be in constant engagement with the rear side surface of the projectile cylinder.
- Compression spring 48 constantly biases the projectile cylinder rearwardly into engagement with the sealing lip so that normally the sleeve portion is rearwardly displaced under load with the retaining lip 202 engaging the abutment I18 as shown in FIG. 6.
- air pressure acts on the rearwardly facing side surface of flange portion 194 and on the rear surface of the pellet in the aligned projectile chamber to move both the sleeve portion 182 and the projectile holding member forwardly while maintaining sealing engagement between the sealing lip I86 and the projectile holding member.
- the front of the aligned projectile chamber is also sealed by compressive engagement with the front sealing means 44 which takes the form of an elastomeric O-ring type gasket mounted in seal groove I08 and normally protruding rearwardly be yond the abutment surface 72.
- the assembly comprises the steps of positioning the retainer ring portion of the breech means in the housing and spot welding it in place. Then the one-piece plastic support member portion of the breech means is positioned and fastened in the housing in abutting engagement with the retainer ring. Then the rear sealing means is positioned in the housing in abutting engagement with the rear surface of the support member portion of the breech block means, FIGS. 1-5, or the retainer member portion, FIGS. 6-9. Any internal parts, such as the leaf spring detent of FIGS. IS or the compression spring detent of FIGS.
- the support shaft I28 is inserted from the front of the gun through the front bore 78, across the loading slot 38, and into the rear bore 79.
- the projectile holding device is fixedly mounted on the shaft and inserted and removed from the loading slot as a unit.
- the slide member 143 is semi-permanently mounted in the detent cavity through the access slot in the housing and the loading slot in the support member.
- the slide member is frictionally retained in the mounted position in the detent cavity, unless manually removed therefrom, and, absent the projectile holding member, will be located by spring 48 in a rearwardly displaced position partially blocking the loading slot.
- the slide member is moved forwardly against the bias of compression spring 48, which may be preassembled, to clear the loading slot and permit the projectile holding member to be inserted by positioning the rear shaft end 138 in slot 106 and the front shaft end 136 against the shaft groove 103 at the top of the detent cavity in axial alignment with bearing seat 166 in the slide member. Then the slide member is released and moves rearwardly over the front end of the support shaft which is thereafter supported by bearing seat 166 in the slide member.
- the front end of the compression spring 48 is axially restrained by transverse detent ribs on the side of the spring well 104, as shown in FIG. 8, and the rear end of the spring engages similar transverse detent ribs in the spring well to hold the slide member on the spring and in the detent cavity when the projectile holding member is removed.
- the different diameter shaft portions 136, I38 prevent inadvertent reverse insertion of the projectile holding member.
- the projectile cylinder is movable axi ally between a transfer position, FIGS. 2 and 6, and a forwardly displaced firing position, FIGS. 4 and 7, in
- the cylinder in the transfer position, the cylinder is centrally located in the loading slot in axially spaced relationship to the sealing sleeve and the front and rear side surfaces of the leading slot whereas, in the embodiment of FIGS. 6-9, in the transfer position, the cylinder is rearwardly displaced into more or less abutting engagement with the sealing lip 186 on sealing sleeve 182 and the forwardly facing rear side surface 73 of the loading slot.
- the projectile holding member slides on the shaft whereas in the embodiment of FIGS. 6-9, the projectile holding member and the shaft move axially as a unit.
- the projectile holding member is also rotatably indexably movable in the transfer position to successively alternately align the projectile chambers with the barrel as shown in FIGS. 5, 6, and 7.
- the projectile holding member rotates on the support shaft and is also positionable in a loading position, FIG. 3, with one of the chambers aligned with loading and unloading recesses 80, 82 at the bottom of the gun.
- the detent nipple 142 resiliently engages the outer peripheral surface of the projectile holding member and is received in the detent slots 132 to hold the projectile holding member in the firing position.
- the projectile holding member is fixed on the support shaft and rotates therewith.
- the support shaft is rotatably and slidably supported at the rear in the shaft slot 106 and at the front between the shaft groove 103 in the support member and bearing seat 166 in the slide member.
- Compression spring 48 biases the projectile holding member rearwardly into abutting engagement with the rear side wall 73 of the loading slot and also biases the detent projections 144, 146 on the slide member into releasable engagement in the front of two adjacent axially aligned chambers 36.
- the detent projections 144, 146 are cammed out of the aligned chambers 36 and the slide member 143 moves forwardly to permit rotation of the projectile holding member 34 to align the next chamber with the barrel in the firing position.
- slide member 143 is moved forwardly against the bias of spring 48 until the front end 136 of the shaft clears the bearing seat 166 in the slide member whereupon the projectile holding member and shaft are radially removable from the loading slot.
- Retainer member flange 120 covers the rear of the chambers 36 to prevent inadvertent removal of the loaded projectiles when the projectile holding member is mounted in the loading slot.
- the sleeve portion 182 of the sealing means 42 is axially movable between a rearward loading position. FIGS. 2 and 6, and a forward firing position, FIGS. 4 and 7.
- Axial forward movement is obtained by application of force on the thin wall hinge portion 194 of the sealing means caused by compression of air in chamber 22 when the gun is fired by pulling trigger means 30 and releasing piston rod means 28 so that compression spring 26 drives the piston means 24 forwardly into abutting engagement with the cushion portion 192 of the sealing means.
- Piston projection 193 enters the sleeve bore to more completely reduce the volume of the air chamber and obtain higher air pressures.
- the projectile holding member and sealing sleeve Upon reduction in air pressure, the projectile holding member and sealing sleeve are free to move rearwardly.
- the sealing sleeve is moved rearwardly by its own resilience and elasticity.
- the projectile holding member In the embodiment of FIGS. 1-5, the projectile holding member is freely slidable on the support shaft when the sealing sleeve has moved rearwardly whereas, in the embodiment of FIGS. 6-9, the projectile holding member is biased rearwardly by compression spring 48 and follows the sealing sleeve rearwardly. Since the sealing sleeve normally extends into the loading slot in the embodiment of FIGS.
- the compression spring also exerts a slight rearwardly directly force on the sealing sleeve through the projectile holding member to maintain the cylinder and the sealing lip in abutting engagement when the projectile holding member is in the rearward position in abutting engagement with the rear side surface of the loading slot.
- a fluid operated gun comprising:
- breech block mounted in said tubular housing and dividing it into a barrel chamber and an air compression chamber
- a barrel mounted in said barrel chamber for firing a projectile from the gun
- a projectile holding member rotatably and transversely slidably mounted in said transverse slot
- detent means in the gun adjacent said transverse slot movable between a holding position and a release position relative to said member and engageable with said member in the holding position to rotatably releasably hold said member in said transverse slot
- first abutment means on said detent means axially aligned with said projectile chambers and insertable therein to hold one of said chambers in firing position.
- said air passage sealing means mounted in said axial passage between said air compression chamber and said member and sealingly engaging said member in the firing position.
- the strength of said spring means being such as to enable said detent means to move axially and withdraw said abutment means relative to said chambers upon manual application of a circumferentially directed force on said member and permit said member to be rotated.
- projectile holding member further comprises:
- second abutment means in said chambers engageable with a projectile to hold the projectile against axial forward movement until said member has been moved to the firing position.
- said spring means comprising a compression spring mounted in first spring well and said second spring well and extending therebetween.
- abutment means comprises a plurality of tapered projections engageable with at least two of said projectile chambers.
- a fluid operated gun comprising:
- sealing means effective between said source and said projectile holding chambers to provide a sealed fluid passage therebetween
- releasable holding means releasably holding said projectile holding member for rotation in said slot to selectively align said projectile holding chambers with said barrel and permitting removal of said projectile holding member from said slot, and comprising:
- slide means associated with said spring means and said support bearing means and being manually operable to cause relative movement of said support bearing means to the open position
- detent means associated with said spring means and said projectile holding member to releasably hold said projectile holding member in firing position with one of said projectile chambers axially aligned with said barrel means
- said detent means comprising an axially extending projection on said slide means engageable with at least one of said projectile chambers
- said spring means acting on said slide means and said slide means being movable away from locating engagement in said projectile chamber to permit rotation of said projectile holding member upon manual application of rotative forces on said projectile holding member.
- a gun operated by compressed fluid comprising:
- barrel means having an axially extending bore through which a projectile is propelled from the gun by the compressed fluid
- breech block means fixedly mounted in the gun between said bore and said source of high pressure fluid
- slot means in said breech block means intersecting and extending generally transversely to said passage means and having an outwardly facing access opening on the outer periphery of said gun,
- projectile holding means of generally cylindrical peripheral configuration having a plurality of radially aligned and equally circumferentially spaced axially extending projectile holding chamber means therein,
- a plurality of abutment surface means on said projectile holding means equal in number to the number of projectile holding chamber means and equally circumferentially spaced about said axis of rotation
- detent means movably mounted on said breech block means adjacent said slot means and having abutment means releasably engageable with said abutment surface means to hold said projectile holding means in a firing position with one of said projectile holding chamber means in axial alignment with said bore and said passage means,
- said projectile holding means being located in said access opening for application of a manually applied circumferentially directed force to rotate said projectile holding means in said slot about said axis of rotation, said detent means being movable against the bias of said spring means thereby permitting relative movement between said abutment surface means and said abutment means whereby said projectile holding means is rotated in said slot to sequentially move said projectile holding chamber means to the firing position,
- access groove means in said breech block means intersecting said bearing means and extending transversely therefrom toward the outer periphery of said gun and terminating outwardly in outwardly facing access openings adjacent and intersecting said access opening of said slot means, and
- said shaft means having an axial length less than the axial distance between opposite ends ofsaid groove means whereby said projectile holding means and said shaft means are transversely slidably movable into and out of said slot means permitting removal and replacement of said projectile holding means relative to said slot means.
- said abutment surface means on said projectile holding means being located on said one side surface of said projectile holding means in axial alignment with said opening of said guideway means, said detent means being axially slidably mounted in said guideway means for movement therein between an axially extended position with said abutment means in holding engagement with one of said abutment surface means and an axially retracted position with said abutment means disengaged from said abutment surface means, and
- said spring means being mounted in said guideway means and biasing said detent means toward the axially extended position.
- abutment means on said detent means comprises a plurality of tapered projections simultaneously engageable with at least two of said abutment surface means.
- a gun operated by compressed fluid comprising:
- barrel means having an axially extending bore through which a projectile is propelled from the gun by the compressed fluid
- breech block means fixedly mounted in the gun between said bore and said source of high pressure fluid
- slot means in said breech block means intersecting and extending generally transversely to said passage means and having an outwardly facing access opening on the outer periphery of said gun,
- projectile holding means of generally cylindrical pe ripheral configuration having a plurality of radially aligned and equally circumferentially spaced axially extending projectile holding chamber means therein,
- a plurality of abutment surface means on said projectile holding means equal in number to the number of projectile holding chamber means and equally circumferentially spaced about said axis of rotation
- detent means movably mounted on said breech block means adjacent said slot means and having abutment means releasably engageable with said abutment surface means to hold said projectile holding means in a firing position with one of said projectile holding chamber means in axial alignment with said bore and said passage means,
- said projectile holding means being located in said access opening for application of a manually applied circumferentially directed force to rotate said projectile holding means in said slot about said axis of rotation, said detent means being movable against the bias of said spring means thereby permitting relative movement between said abutment surface means and said abutment means whereby said projectile holding means is rotated in said slot to sequentially move said projectile holding chamber means to the firing position,
- each of said projectile holding chamber means providing an axially facing projectile loading opening
- each of said projectile holding means providing an axially facing projectile discharge opening
- one of said bearing means being of a size to receive the second shaft portion and not the first shaft portion whereby said projectile holding means is insertable into said slot means only with said first portion of said projectile loading chamber means located next adjacent said source and said second portion of said projectile holding chamber means located next adjacent said barrel means.
- a gun operated by compressed fluid comprising:
- barrel means having an axially extending bore through which a projectile is propelled from the gun by the compressed fluid
- breech block means fixedly mounted in the gun between said bore and said source of high pressure fluid
- slot means in said breech block means intersecting and extending generally transversely to said passage means and having an outwardly facing access opening on the outer periphery of said gun,
- projectile holding means of generally cylindrical peripheral configuration having a plurality of radially aligned and equally circumferentially spaced axially extending projectile holding chamber means therein,
- a plurality of abutment surface means on said projectile holding means equal in number to the number of projectile holding chamber means and equally circumferentially spaced about said axis of rotation
- detent means movably mounted on said breech block means adjacent said slot means and having abutment means releasably engageable with said abutment surface means to hold said projectile holding means in a firing position with one of said projectile holding chamber means in axial alignment with said bore and said passage means,
- said projectile holding means being located in said access opening for application of manually applied circumferentially directed force to rotate said projectile holding means in said slot about said axis of rotation, said detent means being movable against the bias of said spring means thereby permitting relative movement between said abutment surface means and said abutment means whereby said projectile holding means is rotated in said slot to sequentially move said projectile holding chamber means to the firing position,
- a first front bore portion in said breech means having a forwardly facing opening extending through said front end wall portion and supporting the rear end of said barrel means and having a rearwardly facing opening extending through the front intermediate side wall portion of said breech means
- a second rear bore portion in said breech means having a forwardly facing opening extending through the rear intermediate side wall portion of said breech means and a rearwardly facing opening extending through the rear end wall portion of said breech means
- said first sealing means being mounted in said second rear bore portion and engaging said projectile holding means in a firing position to seal said projectile holding chamber means relative to said slot means
- said first sealing means being movably mounted in said second rear bore portion and being movable forwardly into said slot means into sealing engagement with said projectile holding means during firing of the gun and being movable rearwardly after firing of the gun to permit rotation and removal and replacement of said projectile holding means in said slot means.
- said base portion having an annular periphery sealingly engageable with the inner peripheral wall of said air chamber, relatively thick load bearing abutment portion at the periphery of said base portion having a forwardly facing side surface abuttingly engaging the rear end wall of said breech means and having a rearwardly facing side surface abuttingly engaging the piston means at the end of a firing stroke, and connecting flange portion intermediate said abutment portion and said sleeve portion.
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Abstract
Description
Claims (37)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US380220A US3913553A (en) | 1971-03-16 | 1973-07-18 | Air gun with removable projectile holding means |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12480371A | 1971-03-16 | 1971-03-16 | |
US380220A US3913553A (en) | 1971-03-16 | 1973-07-18 | Air gun with removable projectile holding means |
Publications (1)
Publication Number | Publication Date |
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US3913553A true US3913553A (en) | 1975-10-21 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US380220A Expired - Lifetime US3913553A (en) | 1971-03-16 | 1973-07-18 | Air gun with removable projectile holding means |
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US (1) | US3913553A (en) |
Cited By (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2380525A1 (en) * | 1977-02-14 | 1978-09-08 | Barneoud Andre | Compressed air dart launching toy gun - has pneumatic inflator for dart projection through barrel movable axially to air source |
US4164929A (en) * | 1977-07-11 | 1979-08-21 | The Coleman Company, Inc. | Projectile loader for gun |
US4422433A (en) * | 1982-05-24 | 1983-12-27 | The Coleman Company, Inc. | Projectile loader and detent assembly for guns |
US4834059A (en) * | 1988-03-16 | 1989-05-30 | Ljn Toys, Ltd. | Air gun with safety features |
US4986251A (en) * | 1988-05-06 | 1991-01-22 | Utec B. V. | Airgun magazine |
US4993400A (en) * | 1989-08-11 | 1991-02-19 | Edwin Fitzwater | Pellet feed system for an air gun |
US5285766A (en) * | 1992-07-30 | 1994-02-15 | Crosman Corporation | Gun with removable rotary ammunition clip |
US5522374A (en) * | 1991-11-18 | 1996-06-04 | Clayton; Richard A. | Multi-shot air operated, projectile launcher |
US5529050A (en) * | 1994-06-10 | 1996-06-25 | D'andrade; Bruce M. | Safety nozzle for projectile shooting air gun |
US5680853A (en) * | 1991-11-18 | 1997-10-28 | Clayton; Richard A. | Projectile launching apparatus |
US5988152A (en) * | 1998-04-01 | 1999-11-23 | Hasbro, Inc. | Toy gun for sequentially firing a plurality of projectiles |
US20040237952A1 (en) * | 2003-05-28 | 2004-12-02 | Maruzen Company Limited | Airgun firing mechanism |
US20040237953A1 (en) * | 2001-10-02 | 2004-12-02 | Fredrik Axelsson | Airgun with airflow control |
US20090301456A1 (en) * | 2008-04-24 | 2009-12-10 | Barwick Jr Billie John | Loading Pellets in Pellet Guns |
US8950387B2 (en) | 2013-01-25 | 2015-02-10 | Kee Action Sports I Llc | Paintball marker with split body |
US9097484B2 (en) | 2013-05-03 | 2015-08-04 | Hasbro, Inc. | Toy launch apparatus with safety latches |
US9134090B1 (en) * | 2015-04-14 | 2015-09-15 | Seung-Cheol Park | Split type magazine of air rifle |
US9134091B2 (en) | 2012-12-14 | 2015-09-15 | Hasbro, Inc. | Toy launch apparatus with momentum feature |
US9200866B1 (en) * | 2014-06-10 | 2015-12-01 | Shanghai Air Gun Factory | Dual-barrel air gun and bullet duct switching device |
US9347735B2 (en) | 2012-09-24 | 2016-05-24 | Hasbro, Inc. | Toy launch apparatus with dart magazine and automatically retracting dart tube |
US9513075B2 (en) | 2014-07-08 | 2016-12-06 | Hasbro, Inc. | Toy launch apparatus with open top dart drum |
US10197355B2 (en) * | 2016-11-30 | 2019-02-05 | Umarex Usa, Inc. | Cocking and loading apparatus for repeater air rifle |
US20190093981A1 (en) * | 2017-09-25 | 2019-03-28 | Umarex Usa, Inc. | Linear chamber magazine |
US10267593B2 (en) * | 2016-11-30 | 2019-04-23 | Umarex Usa, Inc. | Cocking and loading apparatus for repeater air rifle |
US20190195594A1 (en) * | 2016-11-30 | 2019-06-27 | Umarex Usa, Inc. | Cocking and Loading Apparatus for Repeater Air Rifle |
US10627187B1 (en) * | 2018-10-30 | 2020-04-21 | Kuan Ting Lin | Shooting controller of paintball gun |
US10704859B2 (en) | 2018-11-06 | 2020-07-07 | Gi Sportz Direct Llc | Compressed gas gun front grip having battery access panel |
WO2020176303A3 (en) * | 2019-02-20 | 2020-12-03 | Crosman Corporation | Airgun projectile carrier |
US11226168B2 (en) * | 2020-01-22 | 2022-01-18 | Crosman Corporation | Airgun magazine |
US11353282B2 (en) | 2020-01-22 | 2022-06-07 | Crosman Corporation | Multi-shot airgun |
US20220221245A1 (en) * | 2019-08-02 | 2022-07-14 | Gamo Outdoor, S.L. | Pellet magazine for air rifles and pistols |
US20230062779A1 (en) * | 2021-08-27 | 2023-03-02 | Evike Chang | Barrel Plugs for Safety and Protection of Barrels of Airsoft Rifles and Airguns |
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US278005A (en) * | 1883-05-22 | Ricks | ||
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US962217A (en) * | 1909-06-10 | 1910-06-21 | George E Heckman | Air-gun. |
US995146A (en) * | 1910-08-12 | 1911-06-13 | Lincoln Jeffries And Company Ltd | Spring air pistol and gun. |
US2006030A (en) * | 1934-08-14 | 1935-06-25 | Grady Gillespie | Pneumatic rifle |
US2798329A (en) * | 1952-09-17 | 1957-07-09 | Albert Stadler | Cylinder pin for revolvers |
US3119384A (en) * | 1959-02-16 | 1964-01-28 | Crosman Arms Company Inc | Gas powered gun |
US3212489A (en) * | 1963-04-05 | 1965-10-19 | Crosman Arms Company Inc | Gas-powered revolver |
US3385279A (en) * | 1961-07-28 | 1968-05-28 | Healthways | Pneumatic pistol with means for varying the compressed air pressure |
US3502061A (en) * | 1967-02-16 | 1970-03-24 | Hyo Min Yoo | Gas gun having removable rotatable magazine |
US3765116A (en) * | 1971-01-07 | 1973-10-16 | Colt Ind Operating Corp | Cylinder for revolvers |
-
1973
- 1973-07-18 US US380220A patent/US3913553A/en not_active Expired - Lifetime
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US278005A (en) * | 1883-05-22 | Ricks | ||
US390297A (en) * | 1888-10-02 | Half to cyrus a | ||
US962217A (en) * | 1909-06-10 | 1910-06-21 | George E Heckman | Air-gun. |
US995146A (en) * | 1910-08-12 | 1911-06-13 | Lincoln Jeffries And Company Ltd | Spring air pistol and gun. |
US2006030A (en) * | 1934-08-14 | 1935-06-25 | Grady Gillespie | Pneumatic rifle |
US2798329A (en) * | 1952-09-17 | 1957-07-09 | Albert Stadler | Cylinder pin for revolvers |
US3119384A (en) * | 1959-02-16 | 1964-01-28 | Crosman Arms Company Inc | Gas powered gun |
US3385279A (en) * | 1961-07-28 | 1968-05-28 | Healthways | Pneumatic pistol with means for varying the compressed air pressure |
US3212489A (en) * | 1963-04-05 | 1965-10-19 | Crosman Arms Company Inc | Gas-powered revolver |
US3502061A (en) * | 1967-02-16 | 1970-03-24 | Hyo Min Yoo | Gas gun having removable rotatable magazine |
US3765116A (en) * | 1971-01-07 | 1973-10-16 | Colt Ind Operating Corp | Cylinder for revolvers |
Cited By (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2380525A1 (en) * | 1977-02-14 | 1978-09-08 | Barneoud Andre | Compressed air dart launching toy gun - has pneumatic inflator for dart projection through barrel movable axially to air source |
US4164929A (en) * | 1977-07-11 | 1979-08-21 | The Coleman Company, Inc. | Projectile loader for gun |
US4422433A (en) * | 1982-05-24 | 1983-12-27 | The Coleman Company, Inc. | Projectile loader and detent assembly for guns |
US4834059A (en) * | 1988-03-16 | 1989-05-30 | Ljn Toys, Ltd. | Air gun with safety features |
US4986251A (en) * | 1988-05-06 | 1991-01-22 | Utec B. V. | Airgun magazine |
US4993400A (en) * | 1989-08-11 | 1991-02-19 | Edwin Fitzwater | Pellet feed system for an air gun |
US5522374A (en) * | 1991-11-18 | 1996-06-04 | Clayton; Richard A. | Multi-shot air operated, projectile launcher |
GB2291170B (en) * | 1991-11-18 | 1996-12-11 | Richard A Clayton | Multi-shot air operated projectile launcher |
US5680853A (en) * | 1991-11-18 | 1997-10-28 | Clayton; Richard A. | Projectile launching apparatus |
US5285766A (en) * | 1992-07-30 | 1994-02-15 | Crosman Corporation | Gun with removable rotary ammunition clip |
ES2099655A1 (en) * | 1992-07-30 | 1997-05-16 | Crosman Corp | Gun with removable rotary ammunition clip |
US5529050A (en) * | 1994-06-10 | 1996-06-25 | D'andrade; Bruce M. | Safety nozzle for projectile shooting air gun |
US5988152A (en) * | 1998-04-01 | 1999-11-23 | Hasbro, Inc. | Toy gun for sequentially firing a plurality of projectiles |
US20040237953A1 (en) * | 2001-10-02 | 2004-12-02 | Fredrik Axelsson | Airgun with airflow control |
US6904902B2 (en) * | 2001-10-02 | 2005-06-14 | Fx Airguns Ab | Airgun with airflow control |
US20040237952A1 (en) * | 2003-05-28 | 2004-12-02 | Maruzen Company Limited | Airgun firing mechanism |
US7159584B2 (en) * | 2003-05-28 | 2007-01-09 | Maruzen Company Limited | Airgun firing mechanism |
US20090301456A1 (en) * | 2008-04-24 | 2009-12-10 | Barwick Jr Billie John | Loading Pellets in Pellet Guns |
US8291894B2 (en) | 2008-04-24 | 2012-10-23 | Barwick Jr Billie John | Loading pellets in pellet guns |
US9347735B2 (en) | 2012-09-24 | 2016-05-24 | Hasbro, Inc. | Toy launch apparatus with dart magazine and automatically retracting dart tube |
US9134091B2 (en) | 2012-12-14 | 2015-09-15 | Hasbro, Inc. | Toy launch apparatus with momentum feature |
US9562739B2 (en) * | 2012-12-14 | 2017-02-07 | Hasbro, Inc. | Toy launch apparatus with momentum feature |
US20150330737A1 (en) * | 2012-12-14 | 2015-11-19 | Hasbro, Inc. | Toy launch apparatus with momentum feature |
US9518799B2 (en) | 2013-01-25 | 2016-12-13 | Gi Sportz Direct Llc | Paintball marker with secure barrel engagement |
US8950387B2 (en) | 2013-01-25 | 2015-02-10 | Kee Action Sports I Llc | Paintball marker with split body |
US9097484B2 (en) | 2013-05-03 | 2015-08-04 | Hasbro, Inc. | Toy launch apparatus with safety latches |
US9200866B1 (en) * | 2014-06-10 | 2015-12-01 | Shanghai Air Gun Factory | Dual-barrel air gun and bullet duct switching device |
US9933219B2 (en) | 2014-07-08 | 2018-04-03 | Hasboro, Inc. | Toy projectile launchers with two trigger safety locks |
US9513075B2 (en) | 2014-07-08 | 2016-12-06 | Hasbro, Inc. | Toy launch apparatus with open top dart drum |
US9134090B1 (en) * | 2015-04-14 | 2015-09-15 | Seung-Cheol Park | Split type magazine of air rifle |
US20210102776A1 (en) * | 2016-11-30 | 2021-04-08 | Umarex Usa, Inc. | Cocking and loading apparatus for repeater air rifle |
US10197355B2 (en) * | 2016-11-30 | 2019-02-05 | Umarex Usa, Inc. | Cocking and loading apparatus for repeater air rifle |
US10267593B2 (en) * | 2016-11-30 | 2019-04-23 | Umarex Usa, Inc. | Cocking and loading apparatus for repeater air rifle |
US20190195594A1 (en) * | 2016-11-30 | 2019-06-27 | Umarex Usa, Inc. | Cocking and Loading Apparatus for Repeater Air Rifle |
US20190093981A1 (en) * | 2017-09-25 | 2019-03-28 | Umarex Usa, Inc. | Linear chamber magazine |
US10605562B2 (en) * | 2017-09-25 | 2020-03-31 | Umarex Usa, Inc. | Linear chamber magazine |
US10942003B2 (en) | 2017-09-25 | 2021-03-09 | Umarex Usa, Inc. | Linear chamber magazine |
US10627187B1 (en) * | 2018-10-30 | 2020-04-21 | Kuan Ting Lin | Shooting controller of paintball gun |
US10704859B2 (en) | 2018-11-06 | 2020-07-07 | Gi Sportz Direct Llc | Compressed gas gun front grip having battery access panel |
WO2020176303A3 (en) * | 2019-02-20 | 2020-12-03 | Crosman Corporation | Airgun projectile carrier |
US11098976B2 (en) * | 2019-02-20 | 2021-08-24 | Crosman Corporation | Airgun projectile carrier |
US20220221245A1 (en) * | 2019-08-02 | 2022-07-14 | Gamo Outdoor, S.L. | Pellet magazine for air rifles and pistols |
US11668545B2 (en) * | 2019-08-02 | 2023-06-06 | Gamo Outdoor, S.L. | Pellet magazine for air rifles and pistols |
US11226168B2 (en) * | 2020-01-22 | 2022-01-18 | Crosman Corporation | Airgun magazine |
US11353282B2 (en) | 2020-01-22 | 2022-06-07 | Crosman Corporation | Multi-shot airgun |
US20220268548A1 (en) * | 2020-01-22 | 2022-08-25 | Crosman Corporation | Airgun magazine |
US11774211B2 (en) * | 2020-01-22 | 2023-10-03 | Crosman Corporation | Airgun magazine |
US11885584B2 (en) | 2020-01-22 | 2024-01-30 | Crosman Corporation | Multi-shot airgun |
US20230062779A1 (en) * | 2021-08-27 | 2023-03-02 | Evike Chang | Barrel Plugs for Safety and Protection of Barrels of Airsoft Rifles and Airguns |
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