US3857325A - Semi-automatic firearm - Google Patents

Semi-automatic firearm Download PDF

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Publication number
US3857325A
US3857325A US00393709A US39370973A US3857325A US 3857325 A US3857325 A US 3857325A US 00393709 A US00393709 A US 00393709A US 39370973 A US39370973 A US 39370973A US 3857325 A US3857325 A US 3857325A
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United States
Prior art keywords
frame
trigger
slide member
firearm
slide
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00393709A
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English (en)
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F Thomas
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Individual
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Individual
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Filing date
Publication date
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Priority to US00393709A priority Critical patent/US3857325A/en
Priority to GB3756174A priority patent/GB1439309A/en
Priority to BE148095A priority patent/BE819408A/xx
Priority to AT712074A priority patent/AT337049B/de
Priority to ES429742A priority patent/ES429742A1/es
Priority to FR7429958A priority patent/FR2242651B1/fr
Priority to CA208,351A priority patent/CA1010276A/en
Priority to DE2442107A priority patent/DE2442107C2/de
Priority to JP10100874A priority patent/JPS5535640B2/ja
Priority to IT26916/74A priority patent/IT1020439B/it
Application granted granted Critical
Publication of US3857325A publication Critical patent/US3857325A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/20—Grip or stock safeties, i.e. safeties disengaged by clasping the grip or stock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A17/00—Safety arrangements, e.g. safeties
    • F41A17/34—Magazine safeties
    • F41A17/36—Magazine safeties locking the gun automatically in a safety condition when the magazine is empty or removed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/30—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in bolt-action guns
    • F41A19/34—Cocking mechanisms
    • F41A19/35—Double-action mechanisms, i.e. the cocking being effected during the first part of the trigger pull movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00—Breech mechanisms, e.g. locks
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/78—Bolt buffer or recuperator means
    • F41A3/82—Coil spring buffers
    • F41A3/86—Coil spring buffers mounted under or above the barrel

Definitions

  • ABSTRACT A semi-automatic double action firearm including a frame having a hand grip positioned to be grasped when the firearm is fired, a barrel fixed to the frame, and a firing pin adapted for axial movement within a slide member slidably mounted on the frame surt s emu WIIIII/IIMIII/IIIIII 1 Dec; 31, 1974 rounding the barrel.
  • Resilient means positioned between the frame and the slide member and between the slide member and the firing pin, respectively, urge both the slide member and the firing pin in the direction of the muzzle, the latter exerting a greater force than the former.
  • a trigger bar articulated to the trig get is adapted to engage the firing pin and move it rearwardly when the trigger is pulled, and to release it when the trigger reaches a predetermined position.
  • a lever pivotably mounted at the rear of the hand grip is engaged by the user's hand and restrains the rearward motion of the slide member on the frame against the pull of the trigger. After firing, the firearms recoil enhances the restraining force exerted by the lever until the high pressure propellant gases are discharged from the muzzle.
  • a slide lock bar locks the slide in its open position on the frame when the last cartridge in the magazine is fired.
  • the slide lock bar is designed additionally to V minimize the play between the slide member and the frame, thereby enhancing the sighting accuracy of the weapon.
  • the subject invention contemplates novel features which are adaptable to firearms in a variety of forms
  • its principal embodiment is in the form of a semi-automatic pistol wherein a number of cartridges are carried within a removeable magazine or clip which is'inserted into the handle or grip of the weapon.
  • a sliding member mounted on the frame over the barrel and firing chamber is driven rearwardly by recoil to withdraw the spent cartridge from the firing chamber and eject it from the weapon.
  • the sliding member is then returned to the battery position by a recoil spring and is adapted to strip the succeeding round from the magazine and insert it into the firing chamber in readiness for firing.
  • One object of the subject invention is to provide a small compact firearm which has no hammer to be cocked, and therefore does not rely on accessory safety devices for protection against so-called accidental discharge.
  • Another object of the subject invention is to provide a semi-automatic firearm having a sturdy, durable, effective slide retarding mechanism which is inexpensive to produce, requires little if any maintenance, and at least doesnot impair the accuracy of the weapon.
  • a semi-automatic pistol embodying the subject invention comprises a frame having a more or less conventional hand grip positioned to be grasped when the arm is fired.
  • a conventional barrel is fixed to the frame and a slide member is slidably mounted to the frame surrounding it.
  • a bore formed axially in the rear portion of the slide member receives a firing pin having a generally cylindrical body and adapted for axial movement within the bore.
  • An elongated trigger bar is pivotally connected at one end to the trigger. Its other end'carries a scar which is adapted to engage a second sear on the underside of the firing pin.
  • the trigger bar moves the firing pin rearwardly.
  • a limb projecting upwardly from the trigger bar is held in contact with the underside of the slide by a torsion spring acting between the trigger and the trigger bar at their point of articulation, and serves to rotatethe trigger bar to release the firing pin sear when the trigger reaches a predetermined position in its travel.
  • a lever is pivotably mounted at the rear of the hand grip with its lower leg positioned to engage the web of the users hand when the weapon is grasped for firing.
  • the upper leg of the lever is formed to fit into a recess in the underside of the slide member.
  • the forward end 1 of this recess is inclined to serve as a caming surface for the free end of the upper leg of the lever.
  • the recoil drives the handle rearwardly against the users hand, thereby increasing the force exerted against the lower leg of the lever and, consequently, the force exerted against the caming face of the recess in the slide member by the upper leg of the lever, thus resistingrearward movement of the slide member.
  • the caming action between the face of the recess and the upper lever arm ultimately forces that arm downwardly out of the recess, thereby allowing the slide to move rearwardly, but only after sufficient delay to allow the bullet to reach the muzzle of the barrel.
  • a resilient magazine safety bar is positioned to block the movement of the trigger bar when the magazine receiver in the handle is empty.
  • the weapon is operable only when this safety bar is displaced by insertion of a magazine in the receiver.
  • a resilient slide lock bar positioned laterally of the slide is adapted to lock the slide in its open position on the frame when the last cartridge in the magazine is fired.
  • the force exerted by the slide lock bar laterally against the slide member serves additionally to minimize the play between the slide member and the frame, thereby enhancing the sighting accuracy of the weapon.
  • FIG. I is a side elevation of a hand held semiautomatic pistol embodying the subject invention, with atypical .45 calibre semi-automatic weapon of conventional design outlined in phantom for comparative purposes;
  • FIG. 2 is an enlarged side elevation of the pistol shown in FIG. 1, with portions cutaway to reveal its internal construction;
  • FIG. 3 is a fragmentary side elevation of the pistol shown in FIG. 2 with additional portions cut away to show the operation of the trigger, trigger bar and firing pin assembly;
  • FIG. 4 is a fragmentary side elevation of the pistol of FIG. 3 further illustrating the operation of the trigger, trigger bar and firing pin assembly;
  • FIG. 5 is a reduced exploded side elevation of the pistol of FIG. 2 with portions of the pistol and a' fragment of its magazine cut away for illustrative purposes;
  • FIG. 6 is a partial side elevation of the pistol of FIG. 5 with its slide locked in the open position and portions cut away for illustrative purposes;
  • FIG. 7 is a fragmentary section taken in the direction 7-7 of FIG. 6;
  • FIG. 8 is a fragmentary section taken along the line 88 of FIG. 3;
  • FIG. 9 is a fragmentary section taken in the direction 99 of FIG. 3;
  • FIG. 10 is a fragmentary section taken in the direction 1010 of FIG. 5;
  • FIG. 11 is a fragmentary section taken in the direction 1111 of FIG. 5;
  • FIG. 12 is a fragmentary section taken in the direc tion 1212 of FIG. 2;
  • FIG. 13 is a perspective view of the trigger, trigger bar and magazine safety bar assembly shownin FIG. 2;
  • FIG. 14 is a perspective view of the slide lock bar shown in FIG. 2.
  • the auto-pistol 11 embodying the subject invention is quite similar in general external appearance to the conventional .45 calibre semiautomatic pistol 12, with two notable exceptions: the simplicity of its novel construction permits the pistol 11 to be substantially smaller and lighter than the prior art weapon of equivalent fire power, and pistol 11 has no exposed hammer 13.
  • the barrel 15 of pistol 11 is secured to the frame 17 by means such as dovetails 19.
  • Slide member 21 is mounted on frame 17 to slide along the axis of barrel 15. In the battery position only the muzzle 23 of barrel l5 protrudes through the open forward end of slide 21.
  • Recoil spring 25 is mounted over barrel 15 between a shoulder 27 surrounding the opening at the forward end of the slide 21 and a recessed annulus 29 formed on barrel 15. Spring 25 urges slide 21 in the direction of muzzle 23, i.e., toward the battery position.
  • the rear end of barrel 15 terminates in a firing chamber 31 adapted to receive, in this embodiment, a .45 calibre rimless cartridge 33.
  • a firing chamber 31 adapted to receive, in this embodiment, a .45 calibre rimless cartridge 33.
  • the breech face 35 of slide 21 abuts the base 37 of cartridge 33.
  • a cylindrical bore 39 is formed in the rear portion of slide 21 in axial alignment with barrel 15 and chamber 31.
  • Firing pin 41 is sized to reciprocate axially within bore 39.
  • the tip 43 of firing pin 41 strikes the primer of cartridge 33 through an opening in the breech face 35.
  • a compression spring 45 mounted between the forward wall of bore 39 and an annular shoulder 47 formed on-the body of firing pin 41 urges the firing pin 41 rearwardly to maintain a safe spacing between tip 43 and the primer of cartridge 33.
  • the body of firing pin 41 is bored at its rear end to receive one end of a compression spring 49.
  • the other end of this spring 49 is secured to the slide 21 by convenient means, such as a retainer plug 53 fitted into the rear end of slide 21 to close the bore39.
  • recoil spring 25, safety spring 39, and firing pin spring 49 are more or less matters of choice, the the principal condition, and a significant feature of the invention, being that the firing pin spring 49 be of substantially greater strength than recoil spring 25.
  • Spring 45 merely urges firing pin 41 rearwardly against spring 49, and need be of only nominal strength.
  • a downwardly projecting seat 51 is formed on the body of firing pin 41 and extends downwardly through a slot in the underside of bore 39.
  • Conventional front and rear sights 53 and 55, respectively, are provided at the front and rear ends of slide 21.
  • Trigger 57 is mounted under frame 17, preferably by means of a pin 59.
  • a coiled torsion spring 61 mounted on pin 59 urges the trigger 57 forwardly against the stop or shoulder 63 formed in the frame 17.
  • a trigger guard 65 protects trigger 57 against accidental contact.
  • a handle or hand grip 67 is provided on the frame 17 to the rear of trigger 57.
  • handle 67 is hollow and is formed with the receiver 69 adapted to receive the magazine 71 as shown in FIG. 5.
  • Magai A coiled torsion spring 79 is mounted on pin 75 with one of its legs bearing downwardly and forwardly against trigger 57 and the other upwardly against trigger bar 73, thereby urging the remote end of trigger bar '73 upwardly.
  • trigger bar 73 At its remote end trigger bar 73 is formed with an upper leg 79 and a lower leg 81.
  • Upper leg 79 carries a trigger sear 83 adapted to cooperate with sear 51 on firing pin 41.
  • An upwardly projecting rim or lobe 85 formed on trigger bar 73 is maintained in sliding contact with the smooth, flat underside of slide 21 by spring 79.
  • triggerbar 73 When force is exerted rearwardly on trigger 57, the trigger rotates rearwardly and upwardly around pin 59, carrying pin 75 in an are centered on pin 59.
  • the effect on triggerbar 73 is compound: The entire trigger bar 73 is moved rearwardly, while at the same time upper leg 79 is rotated downwardly around the fulcrum formed at the moving point of contact between limb 85 and the underside of slide 21.
  • a handle or hand grip 67 is formed on the frame 17 to the rear of trigger 57.
  • the position and size of handle 67 are such that to fire the weapon this handle 67 must be grasped by the user.
  • a lever or hand stirrup is pivotably mounted on frame 17, preferably by means of a pin 97 positioned between its lower leg 101 and upper legs 103.
  • Lower leg 101 extends downwardly along the rear face of handle 67 and is shaped to engage the web between the thumb and first finger of the users hand when the handle 67 is grasped for firing.
  • the lever 95 has a pair of upper legs 103 straddling the frame 17. Lips 105 serve to strengthen legs 103.
  • the sides of slide 21 extend downwardly over the top. of frame 17 to form a pair of skirts 109 terminating in downwardly exposed lips 111.
  • a recess 113 is formed, preferably in each of these lips 111, to receive the end of upper leg 103 of lever 95 when slide 21 is in the battery position.
  • a small compression spring 115 seated in a bore 117 provided in the rear face of handle 67 acts against lower leg 101 of lever 95 rearwardly, thereby urging upper legs 103 out of recesses 113. Unless and until stirrup 95 is engaged in lower leg 101 forced against the rear face of handle 67 to rotate upper legs 103 into recesses 113, the weapon remains safe, i.e., incapable of being fired unintentionally.
  • the forwardmost faces 21 of recesses 113 are inclined at an angle to the lips 111 and slide 21 to serve as a caming surface for the end of upper legs 103. It has been found that an angle of between about 50 and about 60 is satisfactory for this purpose, and an angle of about 55. appears to be the optimum for a pistol firing the .45 calibre rimless cartridge.
  • stirrup 95 forces upper legs 103 into recesses 113 and effectively prevents slide 21 from moving rearwardly on frame 17.
  • stirrup 9550 that the ends of upper legs 103 project above their axis of rotation, pin 97. This is readily accomplished by forming legs 103 at an angle of between 110 and about 130, and preferably about 125 (measured from the plane of lips 105, through the center of pin 97, to the plane of the outer face of lower leg 101).
  • stirrup 95 and recesses 113 By appropriate design of stirrup 95 and recesses 113 the rearward movement of slide 21 to its open position can readily be timed to coincide with the departure of bullet 123 from the barrel and the accompanying release of the high pressure gases through muzzle 23.
  • the first of these is a magazine safety bar 125 of spring steel fixedly attached by means such as pin 127 to handle 67 and extending upwardly into magazine receiver 69 within handle 67.
  • Bar 125 is positioned so that its upper end 129 is normally in alignment with the end of lower leg 81 of trigger bar 73. When arm 125 and leg 81 are aligned trigger bar 73 cannot be moved rearwardly and the weapon cannot be fired.
  • An ear 131 extending laterally of bar 125 is formed to be engaged by magazine 71 when the magazine is inserted into receiver 69. With the magazine -71 in place bar 125 is forced to the side so that its end 129 is out of alignment with the end of lower leg 81. Trigger bar 73 is then free to move rearwardly when trigger 57 is squeezed.
  • the second safety feature is a slide lock which secures the slide 21 in its fully open position after the last round in the magazine 71 is inserted in chamber 31.
  • cartridges 33 When cartridges 33 are inserted into magazine 71 they depress a follower 135. Compression spring 137 positioned below follower 135 urges the follower 135 and cartridges 33 upwardl-y. As in conventional autopistols the upper end of magazine 71 extends upwardly into the cartridge receiver just to the rear of the breech, and the slide 21 is adapted to strip the uppermost cartridge from the magazine and thrust it into the breech of barrel 15 during its return from the open position to battery after the preceding round has been fired and ejected from the weapon.
  • Safety bar 143 is formed of spring steel with a permanent bow or lateral curve and is pivotably mounted to the side of frame 17 by means such as pin 145.
  • the bowed bar 143 exerts a force laterally against the inside ofthe adjacent skirt 109 of slide 21.
  • the salutory effect of this arrangement is that the play between slide 21 and frame 17 is taken up by bar 143 and the opposite skirt 109 of slide 21 is continuously urged into contact with the adjacent side of frame 17.
  • a second recess 147 is formed in the skirt 109 adjacent safety bar 143 to receive the free rearwardly directed end 151 of bar 143 when slide 21 is in or near its fully open position.
  • inwardly directed ear 153 on arm 143 is adapted to be engaged by the toe 141 on magazine follower after the last cartridge 33' is stripped from magazine 71 and, under the influence of spring 137 urges the end 151 into recess 147 when the two come into registry after the last round is fired. As shown in FIG. 6 slide 21 is then locked in the open position.
  • the exposed end 151 is manually rotated downwardly out of recess 147.
  • the face of end 151 may be knurled as shown to facilitate this operation.
  • spent cartridges are removed from the firing chamber 31 and ejected from the weapon by extractor claw 155 at the forward end of extractor 157.
  • a novel feature in the extractor assembly resides in the use of a retainer pin 159 slipped into grooves formed in the body of slide 21 and in the adjacent underside of extractor 157 itself to secure the extractor to slide 21. This device greatly facilitates the replacement of the extractor should the need to do so ever arise.
  • FIGS. 3 and 10 most clearly illustrate another novel features of the subject invention which facilitates its assembly, namely the use of a transverse slide lock pin which may easily be removed in the field without special tools to release the slide 21 from frame 17.
  • the ends of slide lock pin 165 extend laterally of frame 17 and slidingly engage slide lock channels 167 formed along the inner faces of skirts 109.
  • pin 165 When pin 165 is withdrawn by forcing it laterally through slot 167 in the skirt 109 of slide 21, slide 21 may be drawn rearwardly and upwardly free of barrel 15 and frame 17.
  • An opening 169 is provided in the skirt 109 opposite slot 167 for the insertion of any convenient tool or rod to force pin 165 through slot 167.
  • a semi-automatic double action firearm comprismg:
  • a frame including a hand grip adapted to be grasped by the user when the firearm is fired; a barrel affixed to said frame having a muzzle and a firing chamber adapted to receive a cartridge; a slide member surrounding said barrel mounted for axial movement on said frame; first resilient means between said slide member and said barrel urging said slide member toward the muzzle of said barrel; a firing pin mounted for axial movement within said slide member;
  • a trigger mounted for motion relative to said frame
  • a trigger bar articulated to said trigger and adapted to engage said firing pin and move it in the direction away from said muzzle in response to movement of said trigger and to release said firing pin when the trigger has moved a predetermined distance;
  • lever means pivotably mounted on said frame and adapted to restrain said slide member against movement relative to said frame when said hand grip is grasped for firing.
  • said trigger is pivotably mounted on said frame and depends therefrom;
  • one end of said trigger bar is pivotably mounted on said trigger;
  • a first leg of said trigger bar is spaced from said end and carries a first sear adapted to releaseably engage a second sear formed on said firing pin;
  • a limb formed on said trigger bar intermediate said end and said first sear is adapted to cooperate with said frame to cause said first sear to rotate about an axis of rotation intermediate said end and said first sear.
  • said limb is adapted to engage slidingly the underside of said frame to provide an imaginary axis of rotation for said first scar
  • said trigger is provided with a recess
  • the end of said trigger bar is pivotably supported in said recess by a pin positioned transversely thereof;
  • said third resilient means is a torsion spring mounted on said pin and having one of its legs bearing on said trigger and the other of its legs bearing on said trigger bar.
  • said lever means comprise a bell crank having at least one upper leg adapted to engage said slide member and a lower leg extending downwardly along the rear of said hand grip adapted to engage the web of the user's hand when said hand grip is grasped for firing;
  • said bell crank is pivotably mounted on said frame for rotation about an axis intermediate said upper and lower legs, whereby said upper leg is urged into engagement with said slide member when force is exerted against said lower leg in the direction of said muzzle.
  • a recess is formed in said slide member to receive the end of the upper leg of said bell crank when said slide member is in the battery position;
  • said bell crank is adapted to urge the end of said upper leg into said recess in response to force exerted against the lower leg in a direction toward said muzzle.
  • the upper leg of said bell crank forms an obtuse angle with the lower leg thereof whereby the end of said upper leg is at all times above the axis of rotation of said bell crank;
  • the end of said upper leg is adapted to cooperate with said inclined face to urge said end out of engagement with said recess when force is exerted against said slide member in the direction away from said muzzle.
  • the inclined face of said recess forms an angle of between about 50 and about 60 with said lower lip.
  • said inclined face forms an angle of about 55 with said lower lip.
  • the angle formed by the upper and lower legs of said bell crank is between about and about 130.
  • the firearm of claim 3 comprising:
  • a receiver in said frame adapted to releasably receive a magazine
  • resilient means mounted on said frame and adapted to releasably engage and prevent the rearward movement of said trigger bar, when said magazine is not in said receiver.
  • said trigger bar is formed with a lower leg extending downwardly and rearwardly thereof;
  • said resilient means comprises a resilient member mounted on said frame within said receiver to be engagable by said lower leg of the trigger bar when in its normal rest position;
  • said resilient member is adapted to cooperate with said magazine when the latter is inserted into said receiver, thereby to be displaced out of engagability with said lower leg of the trigger bar.
  • said resilient member is provided with an ear protruding laterally therefrom in the path followed by said magazine when the latter is inserted into said receiver and adapted to be engaged by said magazine, thereby to displace said resilient member laterally of said lower leg of the trigger bar.
  • said slide lock bar is resilient and is bowed trans- I versely to exert a continuous lateral force between said frame and said slide member.

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US00393709A 1973-09-04 1973-09-04 Semi-automatic firearm Expired - Lifetime US3857325A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US00393709A US3857325A (en) 1973-09-04 1973-09-04 Semi-automatic firearm
GB3756174A GB1439309A (en) 1973-09-04 1974-08-28 Semi-automatic firearm
BE148095A BE819408A (fr) 1973-09-04 1974-08-30 Arme a feu semi-automatique
ES429742A ES429742A1 (es) 1973-09-04 1974-09-03 Perfeccionamientos en la construccion de un arma de fuego semiautomatica de doble accion.
AT712074A AT337049B (de) 1973-09-04 1974-09-03 Halbautomatische, doppelt wirksame feuerwaffe
FR7429958A FR2242651B1 (de) 1973-09-04 1974-09-03
CA208,351A CA1010276A (en) 1973-09-04 1974-09-03 Semi-automatic firearm with a locking device restraining rearward slide of the bolt in firing position
DE2442107A DE2442107C2 (de) 1973-09-04 1974-09-03 Halbautomatische Feuerwaffe
JP10100874A JPS5535640B2 (de) 1973-09-04 1974-09-04
IT26916/74A IT1020439B (it) 1973-09-04 1974-09-04 Arma da fucco semi automatica

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00393709A US3857325A (en) 1973-09-04 1973-09-04 Semi-automatic firearm

Publications (1)

Publication Number Publication Date
US3857325A true US3857325A (en) 1974-12-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00393709A Expired - Lifetime US3857325A (en) 1973-09-04 1973-09-04 Semi-automatic firearm

Country Status (10)

Country Link
US (1) US3857325A (de)
JP (1) JPS5535640B2 (de)
AT (1) AT337049B (de)
BE (1) BE819408A (de)
CA (1) CA1010276A (de)
DE (1) DE2442107C2 (de)
ES (1) ES429742A1 (de)
FR (1) FR2242651B1 (de)
GB (1) GB1439309A (de)
IT (1) IT1020439B (de)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031648A (en) * 1975-12-29 1977-06-28 Thomas Frank S Magazine safety and ejector
US4825744A (en) * 1981-04-30 1989-05-02 Gaston Glock Automatic pistol
US5024139A (en) * 1989-12-08 1991-06-18 Kniarmco Inc. Firearm with movable barrel safety
US5050481A (en) * 1989-12-08 1991-09-24 Kniarmco Inc. Rolling supports for trigger and firing pin assemblies in a firearm
US5050480A (en) * 1989-12-08 1991-09-24 Kniarmco Inc. Trigger assembly for a firearm
US5105570A (en) * 1990-12-14 1992-04-21 Colt's Manufacturing Company Inc. Firing pin spring assembly
US5225612A (en) * 1992-04-15 1993-07-06 Keith Bernkrant Magazine gun lock safety
US5388362A (en) * 1993-11-12 1995-02-14 International Armament Corporation Magazine safety for a Makarov pistol
US5438784A (en) * 1994-08-19 1995-08-08 Smith & Wesson Corp. Magazine safety
WO1996037747A1 (en) * 1995-05-26 1996-11-28 Bernard Christian Besselink A firearm locking system
WO2001023824A1 (en) * 1999-09-27 2001-04-05 Vladimir Georgiev Peev Striker trigger mechanism for automatic and semi-automatic firearms
US6253479B1 (en) * 1999-06-04 2001-07-03 Sig Arms International Ag Pistol having a safety for preventing accidental firing
US6308448B1 (en) 1999-04-30 2001-10-30 Smith & Wesson Corporation Angled interlocked firing mechanism
US6560909B2 (en) * 2001-06-22 2003-05-13 Joseph Cominolli Manual safety for linear striker fired semi-automatic or automatic pistols
US6588136B2 (en) * 2001-10-11 2003-07-08 Fn Mfg Llc Decocking lever
US20050034344A1 (en) * 2003-08-14 2005-02-17 Arthur Viani Self cleaning trigger control connector & connector
US6865979B1 (en) * 2001-02-07 2005-03-15 Smith & Wesson Corp. Apparatus and method for removing the slide of a semi-automatic pistol
US20050108914A1 (en) * 2003-02-12 2005-05-26 S.A.T. Swiss Arms Technology Ag Trigger mechanism for small firearms
US6907814B2 (en) * 2000-02-25 2005-06-21 Heckler & Koch, Gmbh Automatic firearms with a detachable breech lock
EP1584885A1 (de) * 2004-04-08 2005-10-12 Carl Walther GmbH Handfeuerwaffe
US20050229459A1 (en) * 2004-04-15 2005-10-20 Mcgarry James Pistol with firing pin blocking magazine disconnect mechanism
US6993864B1 (en) 2003-02-11 2006-02-07 Smith & Wesson Corp. Locking block for compact semi-automatic pistols
US20100170138A1 (en) * 2008-12-30 2010-07-08 Smith & Wesson Corp. Manual slide and hammer lock safety for a firearm
US20110041680A1 (en) * 2008-05-12 2011-02-24 Volodymyr Igorovych Smirnov Semiautomatic pistol
US9513076B2 (en) 2014-05-15 2016-12-06 Savage Arms, Inc. Firearm with reciprocating bolt assembly
JP2017501368A (ja) * 2013-12-23 2017-01-12 ヘックレル・ウント・コッホ・ゲーエムベーハー ロック式スライドを備える内部撃鉄式自動装弾ピストルの分解時に撃針ばねの張力印加を防止するためのデバイス、及びこのようなデバイスを備える自動装弾ピストル
WO2017044586A1 (en) * 2015-09-11 2017-03-16 Silencerco, Llc Suppressed pistol
US20180009097A1 (en) * 2016-07-06 2018-01-11 Tti (Macao Commercial Offshore) Limited Powered fastener driver
US9897404B2 (en) 2016-03-18 2018-02-20 WHG Properties, LLC Recoil spring for a firearm
US20180321006A1 (en) * 2015-11-19 2018-11-08 Clipfort L.T.D Bv Device and method for blocking discharge in firearms
US10234225B2 (en) * 2017-03-22 2019-03-19 Smith & Wesson Corp. Multiple mode disconnector for pistols
US11029110B2 (en) 2019-04-05 2021-06-08 Smith & Wesson Inc. Magazine safety
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US4031648A (en) * 1975-12-29 1977-06-28 Thomas Frank S Magazine safety and ejector
US4825744A (en) * 1981-04-30 1989-05-02 Gaston Glock Automatic pistol
US5024139A (en) * 1989-12-08 1991-06-18 Kniarmco Inc. Firearm with movable barrel safety
US5050481A (en) * 1989-12-08 1991-09-24 Kniarmco Inc. Rolling supports for trigger and firing pin assemblies in a firearm
US5050480A (en) * 1989-12-08 1991-09-24 Kniarmco Inc. Trigger assembly for a firearm
US5105570A (en) * 1990-12-14 1992-04-21 Colt's Manufacturing Company Inc. Firing pin spring assembly
US5225612A (en) * 1992-04-15 1993-07-06 Keith Bernkrant Magazine gun lock safety
US5388362A (en) * 1993-11-12 1995-02-14 International Armament Corporation Magazine safety for a Makarov pistol
US5438784A (en) * 1994-08-19 1995-08-08 Smith & Wesson Corp. Magazine safety
WO1996037747A1 (en) * 1995-05-26 1996-11-28 Bernard Christian Besselink A firearm locking system
US6308448B1 (en) 1999-04-30 2001-10-30 Smith & Wesson Corporation Angled interlocked firing mechanism
US6253479B1 (en) * 1999-06-04 2001-07-03 Sig Arms International Ag Pistol having a safety for preventing accidental firing
US6665973B1 (en) 1999-09-27 2003-12-23 Vladimir Georgiev Peev Striker trigger mechanism for automatic and semi-automatic firearms
WO2001023824A1 (en) * 1999-09-27 2001-04-05 Vladimir Georgiev Peev Striker trigger mechanism for automatic and semi-automatic firearms
US6907814B2 (en) * 2000-02-25 2005-06-21 Heckler & Koch, Gmbh Automatic firearms with a detachable breech lock
US20050188592A1 (en) * 2000-02-25 2005-09-01 Heckler & Koch, Gmbh Automatic firearms with a detachable breech lock
US7047864B2 (en) 2000-02-25 2006-05-23 Heckler & Koch Gmbh Automatic firearms with a detachable breech lock
US6865979B1 (en) * 2001-02-07 2005-03-15 Smith & Wesson Corp. Apparatus and method for removing the slide of a semi-automatic pistol
US6560909B2 (en) * 2001-06-22 2003-05-13 Joseph Cominolli Manual safety for linear striker fired semi-automatic or automatic pistols
US6588136B2 (en) * 2001-10-11 2003-07-08 Fn Mfg Llc Decocking lever
US6993864B1 (en) 2003-02-11 2006-02-07 Smith & Wesson Corp. Locking block for compact semi-automatic pistols
US20050108914A1 (en) * 2003-02-12 2005-05-26 S.A.T. Swiss Arms Technology Ag Trigger mechanism for small firearms
US7051638B2 (en) * 2003-02-12 2006-05-30 S.A.T. Swiss Arms Technology Ag Trigger mechanism for small firearms
US20050034344A1 (en) * 2003-08-14 2005-02-17 Arthur Viani Self cleaning trigger control connector & connector
EP1584885A1 (de) * 2004-04-08 2005-10-12 Carl Walther GmbH Handfeuerwaffe
US7313996B2 (en) 2004-04-08 2008-01-01 Carl Walther Gmbh Handheld firearm
US20060011059A1 (en) * 2004-04-08 2006-01-19 Martin Werner Handheld firearm
US20080148618A1 (en) * 2004-04-15 2008-06-26 Sturm, Ruger & Company, Inc. Method for blocking discharge of firearm
US7581345B2 (en) * 2004-04-15 2009-09-01 Sturm, Ruger & Company, Inc. Method for blocking discharge of firearm
US20050229459A1 (en) * 2004-04-15 2005-10-20 Mcgarry James Pistol with firing pin blocking magazine disconnect mechanism
US20110041680A1 (en) * 2008-05-12 2011-02-24 Volodymyr Igorovych Smirnov Semiautomatic pistol
US8651010B2 (en) * 2008-05-12 2014-02-18 Volodymyr Igorovych Smirnov Semiautomatic pistol
US20100170138A1 (en) * 2008-12-30 2010-07-08 Smith & Wesson Corp. Manual slide and hammer lock safety for a firearm
US20100170132A1 (en) * 2008-12-30 2010-07-08 Smith & Wesson Corp Manual slide and hammer lock safety for a firearm
US20100170131A1 (en) * 2008-12-30 2010-07-08 Smith & Wesson Corp. Automatic firing pin block safety for a firearm
US8132496B2 (en) 2008-12-30 2012-03-13 Smith & Wesson Corp. Automatic firing pin block safety for a firearm
US8276302B2 (en) 2008-12-30 2012-10-02 Smith & Wesson Corp. Manual slide and hammer lock safety for a firearm
US8296990B2 (en) 2008-12-30 2012-10-30 Smith & Wesson Corp. Snap-on dovetail pistol sight
JP2017501368A (ja) * 2013-12-23 2017-01-12 ヘックレル・ウント・コッホ・ゲーエムベーハー ロック式スライドを備える内部撃鉄式自動装弾ピストルの分解時に撃針ばねの張力印加を防止するためのデバイス、及びこのようなデバイスを備える自動装弾ピストル
US9810496B2 (en) 2014-05-15 2017-11-07 Savage Arms, Inc. Semiautomatic firearm
US10788277B2 (en) 2014-05-15 2020-09-29 Savage Arms, Inc. Semiautomatic firearm
US9599417B2 (en) 2014-05-15 2017-03-21 Savage Arms, Inc. Extractor mechanism for firearm
US9513076B2 (en) 2014-05-15 2016-12-06 Savage Arms, Inc. Firearm with reciprocating bolt assembly
US11713933B2 (en) 2014-05-15 2023-08-01 Savage Arms, Inc. Semiautomatic firearm
US11105577B1 (en) 2015-09-11 2021-08-31 Silencerco, Llc Suppressed pistol
US10677554B2 (en) 2015-09-11 2020-06-09 Silencerco, Llc Suppressed pistol
US9879934B2 (en) 2015-09-11 2018-01-30 Silencerco, Llc Suppressed pistol
WO2017044586A1 (en) * 2015-09-11 2017-03-16 Silencerco, Llc Suppressed pistol
US20180321006A1 (en) * 2015-11-19 2018-11-08 Clipfort L.T.D Bv Device and method for blocking discharge in firearms
US9897404B2 (en) 2016-03-18 2018-02-20 WHG Properties, LLC Recoil spring for a firearm
US10077958B2 (en) 2016-03-18 2018-09-18 WHG Properties, LLC Recoil spring for a firearm
US20180009097A1 (en) * 2016-07-06 2018-01-11 Tti (Macao Commercial Offshore) Limited Powered fastener driver
US10234225B2 (en) * 2017-03-22 2019-03-19 Smith & Wesson Corp. Multiple mode disconnector for pistols
US11029110B2 (en) 2019-04-05 2021-06-08 Smith & Wesson Inc. Magazine safety
US20230056193A1 (en) * 2021-08-19 2023-02-23 Kel-Tec CNC Industries Inc. Pistol
US11971231B2 (en) * 2021-08-19 2024-04-30 Kel-Tec Cnc Industries, Inc. Pistol

Also Published As

Publication number Publication date
DE2442107A1 (de) 1975-03-06
GB1439309A (en) 1976-06-16
CA1010276A (en) 1977-05-17
JPS5072500A (de) 1975-06-16
BE819408A (fr) 1974-12-16
DE2442107C2 (de) 1986-10-16
JPS5535640B2 (de) 1980-09-16
FR2242651B1 (de) 1978-10-27
ES429742A1 (es) 1976-10-01
ATA712074A (de) 1976-09-15
AT337049B (de) 1977-06-10
IT1020439B (it) 1977-12-20
FR2242651A1 (de) 1975-03-28

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