US3613596A - Projectile for a muzzle loading rifle-bore mortar - Google Patents

Projectile for a muzzle loading rifle-bore mortar Download PDF

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US3613596A
US3613596A US820567A US3613596DA US3613596A US 3613596 A US3613596 A US 3613596A US 820567 A US820567 A US 820567A US 3613596D A US3613596D A US 3613596DA US 3613596 A US3613596 A US 3613596A
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projectile
groove
band
bore
diameter
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US820567A
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Erik Walde
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Foersvarets Fabriksverk
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Foersvarets Fabriksverk
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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B18/00—Shaping glass in contact with the surface of a liquid
    • C03B18/02—Forming sheets
    • C03B18/04—Changing or regulating the dimensions of the molten glass ribbon
    • C03B18/06—Changing or regulating the dimensions of the molten glass ribbon using mechanical means, e.g. restrictor bars, edge rollers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/62—Oxygen or sulfur atoms
    • C07D213/70—Sulfur atoms
    • C07D213/71—Sulfur atoms to which a second hetero atom is attached
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
    • F41F1/00—Launching apparatus for projecting projectiles or missiles from barrels, e.g. cannons; Harpoon guns
    • F41F1/06—Mortars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
    • F42B14/02—Driving bands; Rotating bands

Definitions

  • Munson ABSTRACT A projectile for a muzzle loading rifle-bore mortar, with the projectile having an annular, circumferential [54] PROJECTILE FOR A MUZZLE LOAmNG RIFLE groove provided with a rifled surface; an angularly split ring is BORF MORTAR located in the groove and is of less width than the groove so 5 Chums 7 D'awmg that the ring can move within the groove.
  • the ring has resilien- [52] us. Cl 102/94, y ffi to p mi it to xp to a diameter similar to the log/49,1 diameter of a rearward nonrifled area of the mortar barrel and 51 Int.
  • the said nonrifled P of the barrel has a diameter Similar 4% 13/22 that of the bases of the rifling.
  • the depth of the groove in- [50] Field of Search 102/93, 94, creases i y from the rearmost t0 the foremost of its flank 49,1, 49,2 surfaces.
  • PROJECTILE FOR A MUZZLE LOADING-RIFLE-BORE MORTAR This invention relates to a. projectile intended to be fired from a muzzle loading rifle-bore mortar.
  • the projectile has a driving band that is movable in a groovehavinga width considerably greater than. the width of the driving band.
  • the groove has a forwardly decreasing depth.
  • Thedriving band does not interfere with the dropping of the projectile into the barrel of the mortar by gravity when loading, as the driving band is located in the rear part of the groove.
  • engagement with the rifling isinsured by the driving band which is pressed forwardly by, the. pressure of the gases and increases in diameter.
  • the pressure of the gases in a mortarv is not constant, as the propellant charge is varied in order to obtain. different velocities. Thus, it is unsuitable to use the pressure ofthe gases to bring the driving band into engagement with the rifling.
  • the driving band is brought into engagement with the rifling without making use of the pressure of the? gases.
  • thegroove has a forwardly. continuously increasing depth and the driving band is obliquely split and has a resiliency suff cient to permit a radial expansion of said band to a diameter that corresponds to the diameter of a rearwardly located nonrifled part of the barrel of the mortar, which part has the same diameter as the bottoms or bases of the rifling.
  • FIG. I is a view partly in section and partly in elevation of the projectile and a part of thebarrel of the mortar;
  • FIG. 2 is a sectional view of thedriving band and a part of the projectile
  • FIGS. 3 to 7 are sectional views of portions of the driving band, a part of the projectile and a part of the barrel of the mortar and showing the operation of the disclosed construction.
  • a projectile l is shown as being located in the barrel of a rifle-bore mortar.
  • the projectile has an annular circumferential groove 2 containing a driving band 3.
  • the width of the groove is considerably greater than the. width of the driving band so that the band is capable of movement in the groove.
  • the groove has a forwardly continuously increasing depth, that is, the bottom surface of the groove is the mantle surface of a truncated cone.
  • the bottom surface ofthe groove 2 has rifles 4 extending parallel to the generatrix of the mantle surface. The depth of the rifles 4 is directly proportional to the diameter of the groove with zero-depth at the smallest diameter of the groove as will be noted in FIGS. 2 and 3.
  • the driving band 3 is obliquely or angularly split as shown at 7 in FIG. 1 and has a resiliency sufficient to permit radial-expansion of the band to cause it to assume a diameter corresponding to the diameter of a rearwardly located nonrifled part of the barrel, which nonrifled part has substantially the same diameter as the bottoms of the rifling.
  • the cross-sectional shape of the driving band 3 is illustrated in FIG. 2.
  • the cross-sectional shape is in the form of a parallel trapezoid having a beveled outer surface 8 and a rounded surface at 9.
  • the parallel sides or ends of the trapezoid are the two flank surfaces 10 and 11.
  • the surface 12 which is that which is brought into engagement with the rifling of the barrel is perpendicular to the two flank surfaces.
  • Between the outer surface 12 of the band and the rear flank surface 11 is the beveled surface 8.
  • the remaining inner surface 13 is disposed parallel to the bottom of the rifles in the groove.
  • the driving band is preferably made of copper or of some other suitable material.
  • FIGS. 1 and 3 The details of the barrel are illustrated in FIGS. 1 and 3.
  • the muzzle 14 of the barrel is conical as shown in FIG. 3.
  • the barrel' has rifles [5 made in the conventional manner with right-hand or left hand twist.
  • the area rearwardly of the rifles 15 is the loading room or chamber 16, which is nonrifled and has the same diameter as the bottoms of the rifling.
  • the transitio n -'l 7"(FIG. l and75) between the rifles and the loading room is conical'i'.e.,"the
  • the pro ectile is provided with a holder 18 for the propellant charge.
  • the resilient-driving band is-com pressed and isthus given the same diameterJas the internal diameter of the barrel.
  • the projectile will then slidedown into the barrel by gravity'exerted by its weight (FIG. 4): The air in the barrel between the projectileand the bottom of thebarrel is evacuated through the rifling'lsof the barrel.
  • the driving band When the projectile begins to advance' in the barrel under the propelling action of the gases, the driving band will be located between the transition 17 (between the rifles -15 of the barrel andthe loading room 16) and the'rifles 4'on the bottom surface of the groove.
  • the driving band When-the projectilemoves further forwardly the driving band will be brought-into engagement with the rifles 15 of the barrel and the driving band will bc moved rearwardly in the groove to .a'position, in-which the rear flank surface '1 l of the driving band will contact the rear flank surface 6 of the groove.
  • the projectile advances in the barrel, the projectile is then caused to rotate by the twisted rifles of the barrel.
  • a projectile for a muzzle loading mortar with a bore ha v- .ing a forward rifled portion and a rearward chamber comprising, in combination a rigid body; said rigid body having a circumferential :groove formed therein and comprising a front .end, a rear end in fixed spaced-relation to said'frontend; and generally conical surface means between saidends and tapering inwardly in a direction to'ward afront' portion of the body; deformable drive band means in said groove and extending around said conical surface means,' said driveband means having a width substantially less than the width of said groove as measured between said front and rear ends, said drive band means being movable along said conical surface means to a first position adjacent said front end and in which said band is contracted and has a diameter.
  • a projectile according to claim 1 wherein said drive band gitudinal axis of the projectile; and means comprlses said conical surface means is the exterior surface of the a ring of resilient material transversely split at an angle to rifling in the groova the longltudmal axls oflhe 5.
  • a projectile according to claim 4 wherein the depth of A molecule a-ccordmg to elm-m 2 wherein said nng has a 5 the rifling in said groove decreases in a direction toward the uniform cross-sectional configuration. from end of Said move 4.
  • a projectile according to claim 2 wherein the bottom of g the groove has rifling extending in a direction along the lon-

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  • General Health & Medical Sciences (AREA)
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  • Portable Nailing Machines And Staplers (AREA)
  • Toys (AREA)

Abstract

A projectile for a muzzle loading rifle-bore mortar, with the projectile having an annular, circumferential groove provided with a rifled surface; an angularly split ring is located in the groove and is of less width than the groove so that the ring can move within the groove. The ring has resiliency sufficient to permit it to expand to a diameter similar to the diameter of a rearward nonrifled area of the mortar barrel and the said nonrifled part of the barrel has a diameter similar to that of the bases of the rifling. The depth of the groove increases steadily from the rearmost to the foremost of its flank surfaces.

Description

United States Patent 1 1 3,613,596
72 Inventor gril lvfaldeb d [56] g a gc g s l s una, we en 1 pp NO 820,567 UNITED STATES PATENTS [22] Filed AP 30 1969 34,493 2/1962 Havens 102/94 Patented o g, Wauters X [73] Assignee Forsvarets Fabriksverk 3,023,704 3/1962 Dawson et a1. 102/94 Eskustuna Sweden 3,143,074 8/1964 Jasse 102/94 Primary ExaminerRobert F. Stahl Att0rney-Eric Y. Munson ABSTRACT: A projectile for a muzzle loading rifle-bore mortar, with the projectile having an annular, circumferential [54] PROJECTILE FOR A MUZZLE LOAmNG RIFLE groove provided with a rifled surface; an angularly split ring is BORF MORTAR located in the groove and is of less width than the groove so 5 Chums 7 D'awmg that the ring can move within the groove. The ring has resilien- [52] us. Cl 102/94, y ffi to p mi it to xp to a diameter similar to the log/49,1 diameter of a rearward nonrifled area of the mortar barrel and 51 Int. Cl ..F42b 31/00, the said nonrifled P of the barrel has a diameter Similar 4% 13/22 that of the bases of the rifling. The depth of the groove in- [50] Field of Search 102/93, 94, creases i y from the rearmost t0 the foremost of its flank 49,1, 49,2 surfaces.
PATENTEDum 19 Ml 3,613,586
saw 1 BF 2 l4 5 cl 4 Fig 3 ///////////////////V/ M I l fl 1 i/ ///////Vv2 /J /4/////// 1N VEN TOR. Ekm 0mm:
PATENTEDUBHQISYI x 3,613,596 SHEET 26F 2 Fig5 Fig 6 Fig 7 4 IN VENTOR.
Em Jane:
PROJECTILE FOR A MUZZLE LOADING-RIFLE-BORE MORTAR This invention relates to a. projectile intended to be fired from a muzzle loading rifle-bore mortar.
It has previously been proposed to providea projectile having a resilient driving band and intended to. be fired from a muzzle loading rifled-bore mortar. In this case the projectile has a driving band that is movable in a groovehavinga width considerably greater than. the width of the driving band. The groove has a forwardly decreasing depth. Thedriving band does not interfere with the dropping of the projectile into the barrel of the mortar by gravity when loading, as the driving band is located in the rear part of the groove. At the firing of the projectile, engagement with the rifling isinsured by the driving band which is pressed forwardly by, the. pressure of the gases and increases in diameter.
The pressure of the gases in a mortarv is not constant, as the propellant charge is varied in order to obtain. different velocities. Thus, it is unsuitable to use the pressure ofthe gases to bring the driving band into engagement with the rifling.
According to the present invention the driving band is brought into engagement with the rifling without making use of the pressure of the? gases. This is accomplished by the present invention in which thegroove has a forwardly. continuously increasing depth and the driving band is obliquely split and has a resiliency suff cient to permit a radial expansion of said band to a diameter that corresponds to the diameter of a rearwardly located nonrifled part of the barrel of the mortar, which part has the same diameter as the bottoms or bases of the rifling.
Reference is to be had to the accompanying drawings in which an illustrative embodiment of the invention is .shown and in which, i
FIG. I is a view partly in section and partly in elevation of the projectile and a part of thebarrel of the mortar;
FIG. 2 is a sectional view of thedriving band and a part of the projectile, and
FIGS. 3 to 7 are sectional views of portions of the driving band, a part of the projectile and a part of the barrel of the mortar and showing the operation of the disclosed construction.
According to FIG. 1, a projectile l is shown as being located in the barrel of a rifle-bore mortar. The projectile has an annular circumferential groove 2 containing a driving band 3. The width of the groove is considerably greater than the. width of the driving band so that the band is capable of movement in the groove. The groove has a forwardly continuously increasing depth, that is, the bottom surface of the groove is the mantle surface of a truncated cone. The bottom surface ofthe groove 2 has rifles 4 extending parallel to the generatrix of the mantle surface. The depth of the rifles 4 is directly proportional to the diameter of the groove with zero-depth at the smallest diameter of the groove as will be noted in FIGS. 2 and 3.
The driving band 3 is obliquely or angularly split as shown at 7 in FIG. 1 and has a resiliency sufficient to permit radial-expansion of the band to cause it to assume a diameter corresponding to the diameter of a rearwardly located nonrifled part of the barrel, which nonrifled part has substantially the same diameter as the bottoms of the rifling.
The cross-sectional shape of the driving band 3 is illustrated in FIG. 2. The cross-sectional shape is in the form of a parallel trapezoid having a beveled outer surface 8 and a rounded surface at 9. The parallel sides or ends of the trapezoid are the two flank surfaces 10 and 11. The surface 12 which is that which is brought into engagement with the rifling of the barrel is perpendicular to the two flank surfaces. Between the outer surface 12 of the band and the rear flank surface 11 is the beveled surface 8. The remaining inner surface 13 is disposed parallel to the bottom of the rifles in the groove. The driving band is preferably made of copper or of some other suitable material.
The details of the barrel are illustrated in FIGS. 1 and 3. The muzzle 14 of the barrel is conical as shown in FIG. 3. The
greatest diameter of the same is. slightly greater than ithe diameter at the bottoms of the rifling."'lhe smallest diameter is the same as the diameter of the barrel' The barrel'has rifles [5 made in the conventional manner with right-hand or left hand twist. The area rearwardly of the rifles 15 is the loading room or chamber 16, which is nonrifled and has the same diameter as the bottoms of the rifling. The transitio n -'l 7"(FIG. l and75) between the rifles and the loading room is conical'i'.e.,"the
lower ends of the rifles 15 are beveled. The pro ectile is provided with a holder 18 for the propellant charge.
The operation of the device according to-the invention will be described with reference to FlG SL'3 to 7.
The projectile is inserted in themuzzle of =the barrel in FIG. 3. When the beveled surface 8of the driving band 3 contacts the conical muzzle l4,the resilient-driving bandis-com pressed and isthus given the same diameterJas the internal diameter of the barrel. The projectile will then slidedown into the barrel by gravity'exerted by its weight (FIG. 4): The air in the barrel between the projectileand the bottom of thebarrel is evacuated through the rifling'lsof the barrel.
When the projectile reaches the end of its-travel or the point shown in FIG. 5,'the holder for the propellant charge willcontact the firing pin at the bottom of the barrel. The resilient driving band will expand to a diameter corresponding to; the diameter of the rearwardly nonrifled part ofthe barrel part has the same diameter as the bottoms voftherillin'gl-(At the same time, the driving band will slide rearwardly in the groove 2 owing to the inertia of'the driving band, whenth'e downward movement of the projectile is abruptly stopped. V
The principle of operation at firingis illustrated in FIGS. 6 and 7. When the projectile begins to advance' in the barrel under the propelling action of the gases,the driving band will be located between the transition 17 (between the rifles -15 of the barrel andthe loading room 16) and the'rifles 4'on the bottom surface of the groove. When-the projectilemoves further forwardly the driving band will be brought-into engagement with the rifles 15 of the barrel and the driving band will bc moved rearwardly in the groove to .a'position, in-which the rear flank surface '1 l of the driving band will contact the rear flank surface 6 of the groove. When the projectile advances in the barrel, the projectile is then caused to rotate by the twisted rifles of the barrel.
lclaim: l. A projectile for a muzzle loading mortar with a bore ha v- .ing a forward rifled portion and a rearward chamber comprising, in combination a rigid body; said rigid body having a circumferential :groove formed therein and comprising a front .end, a rear end in fixed spaced-relation to said'frontend; and generally conical surface means between saidends and tapering inwardly in a direction to'ward afront' portion of the body; deformable drive band means in said groove and extending around said conical surface means,' said driveband means having a width substantially less than the width of said groove as measured between said front and rear ends, said drive band means being movable along said conical surface means to a first position adjacent said front end and in which said band is contracted and has a diameter. smaller than the diameter of the rifled portion of said bore, and to a second position in seating engagement with said rear end and in which said band is expanded by said conical surface means to a diameter greater than the rifled portion of the bore; said band being movable to said second position in response to inertia of the projectile when it is fired; whereby, said projectile can be dropped through saidrifle portion of the bore and into said chamber with said band in said first position; and said band expands to engage said rifled portion, when the projectile is fired, upon movement to said second position.
3 4 2. A projectile according to claim 1 wherein said drive band gitudinal axis of the projectile; and means comprlses said conical surface means is the exterior surface of the a ring of resilient material transversely split at an angle to rifling in the groova the longltudmal axls oflhe 5. A projectile according to claim 4 wherein the depth of A molecule a-ccordmg to elm-m 2 wherein said nng has a 5 the rifling in said groove decreases in a direction toward the uniform cross-sectional configuration. from end of Said move 4. A projectile according to claim 2 wherein the bottom of g the groove has rifling extending in a direction along the lon-

Claims (5)

1. A projectile for a muzzle loading mortar with a bore having a forward rifled portion and a rearward chamber comprising, in combination a rigid body; said rigid body having a circumferential groove formed therein and comprising a front end, a rear end in fixed spaced relation to said front end, and generally conical surface means between said ends and tapering inwardly in a direction toward a front portion of the body; deformable drive band means in said groove and extending around said conical surface means, said drive band means having a width substantially less than the width of said groove as measured between said front and rear ends, said drive band means being movable along said conical surface means to a first position adjacent said front end and in which said band is contracted and has a diameter smaller than the diameter of the rifled portion of said bore, and to a second position in seating engagement with said rear end and in which said band is expanded by said conical surface means to a diameter greater than the rifled portion of the bore; said band being movable to said second position in response to inertia of the projectile when it is fired; whereby, said projectile can be dropped through said rifled portion of the bore and into said chamber with said band in said first position; and said band expands to engage said rifled portion, when the projectile is fired, upon movement to said second position.
2. A projectile according to claim 1 wherein said drive band means comprises a ring of resilient material transversely split at an angle to the longitudinal axis of the projectile.
3. A projectile according to claim 2 wherein said ring has a uniform cross-sectional configuration.
4. A projectile according to claim 2 wherein the bottom of the groove has rifling extending in a direction along the longitudinal axis of the projectile; and said conical surface means is the exterior surface of the rifling in the groove.
5. A projectile according to claim 4 wherein the depth of the rifling in said groove decreases in a direction toward the front end of said groove.
US820567A 1969-03-04 1969-04-30 Projectile for a muzzle loading rifle-bore mortar Expired - Lifetime US3613596A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB11437/69A GB1195184A (en) 1969-03-04 1969-03-04 Improvements in or relating to Muzzle-Loading Rifle-Bore Mortas and Projectile Therefor.
DE19691912751 DE1912751A1 (en) 1969-03-04 1969-03-13 Projectile for a muzzle-loading grenade launcher with a rifled barrel
FR6907348A FR2036458A5 (en) 1969-03-04 1969-03-14
NL6904086A NL6904086A (en) 1969-03-04 1969-03-17
CH480769A CH488990A (en) 1969-03-04 1969-03-31 Set consisting of a muzzle-loading rifled core mortar and its projectile
US82056769A 1969-04-30 1969-04-30

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US3613596A true US3613596A (en) 1971-10-19

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US (1) US3613596A (en)
CH (1) CH488990A (en)
DE (1) DE1912751A1 (en)
FR (1) FR2036458A5 (en)
GB (1) GB1195184A (en)
NL (1) NL6904086A (en)

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US4413567A (en) * 1979-09-08 1983-11-08 Etablissement Salgad Fin-stabilized mortar grenade
US4552071A (en) * 1982-06-15 1985-11-12 United Technologies Corporation Two-piece despin obturator
US4610205A (en) * 1984-07-30 1986-09-09 Bentley John C Bullet for black powder rifles
US4867036A (en) * 1987-12-02 1989-09-19 Ford Aerospace & Communications Corporation Electromagnetic gun bore rider
US5164540A (en) * 1990-12-19 1992-11-17 Giat Industries Slipping driving band for projectiles of any caliber
WO1996012927A1 (en) * 1994-10-19 1996-05-02 Bofors Ab Skidding driving band
EP0985131A4 (en) * 1997-06-03 2002-05-02 Metal Storm Ltd Firearms
US6453821B1 (en) * 1999-06-29 2002-09-24 Raytheon Company High-temperature obturator for a gun-launched projectile
US6510643B2 (en) * 1995-07-19 2003-01-28 Metal Storm Pty Ltd Acn Barrel assembly with axially stacked projectiles
US20040244573A1 (en) * 2001-09-24 2004-12-09 John Tilling Munition loading device
US20060027130A1 (en) * 2004-08-05 2006-02-09 Parker Bobby J Muzzle loading bullet with gas seal
US20060027128A1 (en) * 2004-02-10 2006-02-09 Hober Holding Company Firearms projectile having jacket runner
WO2006110151A1 (en) * 2004-06-09 2006-10-19 United Defense Lp Projectile fall-back preventer
US20090126595A1 (en) * 2006-05-08 2009-05-21 Bae Systems Bofors Ab Method for manufacturing banded projectiles intended for firing from rifled barrels and projectiles made according to the method, and method for utilizing their special characteristics imparted by the method for manufacture when firing these projectiles
US20090145323A1 (en) * 2006-03-14 2009-06-11 Bae Systems Bofors Ab Method for ensuring a predetermined muzzle velocity of an artillery projectile and projectiles designed according to said method
US9157716B1 (en) * 2014-09-29 2015-10-13 The United States Of America As Represented By The Secretary Of The Army Shot start ring for projectile
US20190204055A1 (en) * 2018-01-03 2019-07-04 Igor Abramov Mortar system with improved gas seal
US10345086B1 (en) * 2017-12-18 2019-07-09 The United States Of America As Represented By The Secretary Of The Army MOUT projectile with sabot integrated shot start
US10921103B2 (en) 2014-06-27 2021-02-16 Shooting Edge Technology, LLC Air driven projectile

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US3687079A (en) * 1970-11-20 1972-08-29 Us Army Sectioned obturating ring
DE2635923C3 (en) * 1976-08-10 1981-03-26 Kubota Ltd., Osaka In-line valve
GB2279443B (en) * 1978-10-12 1995-06-21 Gen Electric Liquid propellant gun
DE3114080C2 (en) * 1981-04-08 1986-12-18 Rheinmetall GmbH, 4000 Düsseldorf Arrangement in the circumferential area of a sabot or a projectile
DE19815295C2 (en) * 1998-04-06 2003-05-15 Rheinmetall W & M Gmbh Spin-stabilized artillery shell that can be fired from a gun barrel
US6796068B2 (en) * 2000-09-05 2004-09-28 Harold Crowson Muzzleloading bullet with expanding pin for gas check
US7827915B1 (en) 2001-09-27 2010-11-09 Accura Bullets Gas check with system for improved loading and retention in bore of muzzleloading firearms
US6763765B2 (en) 2001-09-27 2004-07-20 Harold Crowson Break-away gas check for muzzle-loading firearms

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US34493A (en) * 1862-02-25 Improvement in projectiles for rifled ordnance
US2325560A (en) * 1938-07-30 1943-07-27 Wauters Jean Ordnance
US3023704A (en) * 1957-07-29 1962-03-06 Dawson Philip John Projectiles for mortars and like projectors
US3143074A (en) * 1960-06-29 1964-08-04 Hotchkiss Brandt Projectile for a mortar having a nonrifled bore

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US3143074A (en) * 1960-06-29 1964-08-04 Hotchkiss Brandt Projectile for a mortar having a nonrifled bore

Cited By (25)

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Publication number Priority date Publication date Assignee Title
US4413567A (en) * 1979-09-08 1983-11-08 Etablissement Salgad Fin-stabilized mortar grenade
US4552071A (en) * 1982-06-15 1985-11-12 United Technologies Corporation Two-piece despin obturator
US4610205A (en) * 1984-07-30 1986-09-09 Bentley John C Bullet for black powder rifles
US4867036A (en) * 1987-12-02 1989-09-19 Ford Aerospace & Communications Corporation Electromagnetic gun bore rider
US5164540A (en) * 1990-12-19 1992-11-17 Giat Industries Slipping driving band for projectiles of any caliber
WO1996012927A1 (en) * 1994-10-19 1996-05-02 Bofors Ab Skidding driving band
US6510643B2 (en) * 1995-07-19 2003-01-28 Metal Storm Pty Ltd Acn Barrel assembly with axially stacked projectiles
EP0985131A4 (en) * 1997-06-03 2002-05-02 Metal Storm Ltd Firearms
US6453821B1 (en) * 1999-06-29 2002-09-24 Raytheon Company High-temperature obturator for a gun-launched projectile
US7040237B2 (en) 2001-09-24 2006-05-09 Qinetiq Limited Munition loading device
US20040244573A1 (en) * 2001-09-24 2004-12-09 John Tilling Munition loading device
US20060027128A1 (en) * 2004-02-10 2006-02-09 Hober Holding Company Firearms projectile having jacket runner
WO2006110151A1 (en) * 2004-06-09 2006-10-19 United Defense Lp Projectile fall-back preventer
US20060278118A1 (en) * 2004-06-09 2006-12-14 Melody Timothy E Projectile fall-back preventer
US7273012B2 (en) * 2004-06-09 2007-09-25 Bae Systems Land & Armaments L.P. Projectile fall-back preventer
US20060027130A1 (en) * 2004-08-05 2006-02-09 Parker Bobby J Muzzle loading bullet with gas seal
EP1996896A4 (en) * 2006-03-14 2012-08-22 Bae Systems Bofors Ab Method for ensuring a predetermined muzzle velocity of an artillery projectile and projectiles designed according to said method
US20090145323A1 (en) * 2006-03-14 2009-06-11 Bae Systems Bofors Ab Method for ensuring a predetermined muzzle velocity of an artillery projectile and projectiles designed according to said method
US20090126595A1 (en) * 2006-05-08 2009-05-21 Bae Systems Bofors Ab Method for manufacturing banded projectiles intended for firing from rifled barrels and projectiles made according to the method, and method for utilizing their special characteristics imparted by the method for manufacture when firing these projectiles
US10921103B2 (en) 2014-06-27 2021-02-16 Shooting Edge Technology, LLC Air driven projectile
US11674780B2 (en) * 2014-06-27 2023-06-13 Shooting Edge Technology, LLC Air driven projectile
US9157716B1 (en) * 2014-09-29 2015-10-13 The United States Of America As Represented By The Secretary Of The Army Shot start ring for projectile
US10345086B1 (en) * 2017-12-18 2019-07-09 The United States Of America As Represented By The Secretary Of The Army MOUT projectile with sabot integrated shot start
US20190204055A1 (en) * 2018-01-03 2019-07-04 Igor Abramov Mortar system with improved gas seal
US10655943B2 (en) * 2018-01-03 2020-05-19 Igor Abramov Mortar system with improved gas seal

Also Published As

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DE1912751A1 (en) 1970-10-01
CH488990A (en) 1970-04-15
FR2036458A5 (en) 1970-12-24
NL6904086A (en) 1970-09-21
GB1195184A (en) 1970-06-17

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