Closed bolt firing delayed blowback automatic handgun firearm

Abstract

A firearm having a safety device known as a Detachable Firing Assembly. This removable section of a firearm houses the firing hammer and is instantly removed to completely disable a firearm and is to kept in a location other than the firearm itself.

I hereby claim:  
     
         1 . A closed Bolt Firing Delayed Blowback Automatic Handgun Firearm which employs: A Spinning-lock Breech Bolt and Breech Bolt Receiver System as specified in  claim 2 .  
     
     
         2 . A Spinning Lock Breech Bolt and Breech Bolt Receiver (SLR) System comprising: a firearm barrel which has a breech bolt hood fastened to it and, then together, the two act as a breech forward firearm breech bolt receiver by guiding the reciprocating motion of a telescoping, spring loaded, L-shaped, firearm breech bolt which has a built-in, duel function, breech locking system that conforms to the specification of  claim 17  comprising, a pair of locking balls and spring loaded wedge, a wedge stud pin, a manual operating handle, a thumb wheel operated rotating lockshaft, a spring loaded detent pin and a lockable spring loaded firing pin.  
     
     
         3 . The SLR System of  claim 2  wherein: said firearm barrel is located between and acts as a stressed member for said firearm breech bolt hood and a firearm frame.  
     
     
         4 . The SLR System of  claim 2  wherein: said firearm breech bolt hood is an open side down, U-shaped, channel walled off at its front end, and fastened to said firearm barrel with machine screws.  
     
     
         5 . The SLR System of  claim 2  wherein: a mounting surface for the desired trajectory sighting system is provided by a U-shaped channel, welded to said breech bolt hood, running the length of said breech bolt hood and also extending past the breech bolt hoods rear end to shield said rotating lockshafts thumb wheel.  
     
     
         6 . The SLR system of  claim 2  wherein: said firearm breech bolt differs from previous designs of telescoping, L-shaped, firearm breech bolts, specifically, in that its recoil or rearward motion is limited by a step in its front underside that contacts a step in the top surface of said firearm barrel, rather than using a mechanical stop located behind the breech bolt as in previous L-shaped firearm breech bolt applications.  
     
     
         7 . The SLR System of  claim 2  wherein: an extension spring loads said firearm breech bolt forward to the breech closed position by tethering from the front wall of said firearm breech bolt hood to a press fit cross pin inside said firearm breech bolt.  
     
     
         8 . The SLR System of  claim 2  wherein: said pair of locking balls, which float in a vertical bore inside said firearm breech bolt, are parted vertically by said spring loaded wedge so that said locking balls will project outward from said L-shaped breech bolt to engage recesses in said firearm breech bolt receiver to lock said firearm breech bolt forward in its breech closed position.  
     
     
         9 . The SLR System of  claim 2  wherein: a compression spring loads said wedge forward and said wedge has said wedge stud pin protruding upward from it for the purpose of retaining said wedge within a slotted bore inside said firearm breech bolt and to provide said wedge with a link to said manual operating handle.  
     
     
         10 . The SLR System of  claim 2  wherein: said manual operating handle is a blade, sandwiched between said firearm breech bolt and said firearm breech bolt hood, which perpendicularly joins a right and left grip pad and has a closed ended slot through the front end of the blade, that permits its interaction with said wedge stud pin, and a keyhole slot through the rear end of the blade, through which passes said rotating lockshaft and said detent pin.  
     
     
         11 . The SLR System of  claim 2  wherein: a press fit pin inside said firearm breech bolt distends a continuous circumferential groove cut into said rotating lockshaft to provide the means by which said rotating lockshaft is retained within a vertical bore inside the rear end of said firearm breech bolt and said rotating lockshaft acts as both the retaining and the locking device for said firearm breech bolts manual operating handle and said firearm breech bolts firing pin.  
     
     
         12 . The SLR System of  claim 2  wherein: said rotating lockshaft can be rotated continuously in either direction and changes lock position every ninety degrees of rotation by operating said thumb wheel located at the top end of said rotating lockshaft which, when rotated, changes the revolutionary positions of a top and a bottom pair of parallel flats, notched into said rotating lockshaft, which are perpendicular to each other.  
     
     
         13 . The SLR System of  claim 2  wherein: said rotating lockshaft has two circumferential rows of lock position status symbols that appear through windows in both sides and the rear end of said firearm breech bolt to indicate said rotating lockshafts position.  
     
     
         14 . The SLR System of  claim 2  wherein: said rotating lockshafts thumb operated wheel is a disc knurled on its circumferential surface with four recesses on its bottom surface, spaced ninety degrees apart, which interacts with said spring loaded detent pin to provide the tactile means by which said rotating lockshafts lock positions can be found and to hold said thumb wheel, and thus said lockshaft in the desired position.  
     
     
         15 . The SLR System of  claim 2  wherein: a compression spring loads upward said detent pin which protrudes from a vertical bore in said firearms breech bolt contacting the lower surface of said rotating lockshafts thumb wheel.  
     
     
         16 . The SLR System of  claim 2  wherein: a compression spring loads rearward said lockable firing pin which has a notch, with square corners, that forms a front and a rear step, which are perpendicular to said firing pins axis, that makes possible the control of both the position and movement of said firing pin as said firing pins notch is distended perpendicularly by the bottom end of said rotating lockshaft.  
     
     
         17 . Any Duel Function Breech Locking Mechanism which locks closed the breech bolt of a firearm for the purpose of discharging the firearm and for the secondary purpose of deactivating the firearm by having the ability to lock and unlock the firearms breech bolt operating handle, which operates the breech bolt in addition to manually releasing the firearms breech locking mechanism, but claimed only if the breech bolts operating handles locking device simultaneously locks and un-locks the firearms firing pin.  
     
     
         18 . A Closed Bolt Firing Delayed Blowback Automatic Handgun Firearm which employs: a detachable firing assembly as specified in  claim 19 .  
     
     
         19 . A Detachable Firing Assembly which conforms to the specification of  claim 23  by attaching to the rear of a handgun firearms gripframe using an interlocking groove at its top end and a spring loaded, ball pointed, holding pin, contained within, that protrudes downward from its bottom.  
     
     
         20 . The Detachable Firing Assembly of  claim 19  wherein: a firing hammer and said ball pointed holding pin share the same spring.  
     
     
         21 . The Detachable Firing Assembly of  claim 19  which: when utilized by an automatic handgun firearm, shall house the firing hammer and all of its constituents in mechanism except for the firearms firing trigger, its firing pin and its breech bolt.  
     
     
         22 . An Automatic Handgun Firearm Gripframe which accommodates the detachable firing assembly of  claim 21  by having both sides of the magazine well joined at the rear of the gripframe by only a cross member at the top and a cross member at the bottom.  
     
     
         23 . Any Detachable Firing Assembly which attaches to and detaches from a firearm without separate fasteners, such as screws or pins, to permit the instantaneous detachment of such a firing assembly for the sole purpose of disabling a firearm when it is stored, and a detachable firing assembly shall be considered as such when it houses, but not limited to, a firearms firing hammer.  
     
     
         24 . The Use of a Horned Firearm Magazine when its horn, which extends out from the floor of the magazine, acts as a tool for removing the detachable firing assembly of  claim 23  from a firearm.  
     
     
         25 . A Closed Bolt Firing Delayed Blowback Automatic Handgun Firearm which employs: a gripframe, fabricated from sheet metal rather than a forging, but only when said gripframe is constructed in the exact manner specified in  claim 26 .  
     
     
         26 . An Automatic Handgun Firearm Gripframe wherein a right and a left side frame plate are joined, using the process of welding, by two ninety degree flanges, one projecting from each plate, that are fused together to form the front wall of the magazine well and at the rear of the gripframe by only a cross member at the top and a cross member at the bottom and by both ends of an L-shaped trigger guard and by a firearm barrel which is located at the top of the gripframe.  
     
     
         27 . A Closed Bolt Firing Delayed Blowback Automatic Handgun Firearm which employs: A Trigger Operated Breech Bolt Lock-back Releasing (TLR) System, conforming to the specification of  claim 40 , comprising a breech bolt catch, a breech bolt catch engaging lever and its two stud pins, a cam following lever, a hinge pin, a sliding cam, a first and a second extension spring.  
     
     
         28 . The TLR system of  claim 27  wherein: said breech bolt catch is a bar that reciprocates vertically between said barrel and said breech bolt hood to catch said breech bolt in and release said breech bolt from its lock-back position also known as the breech open position.  
     
     
         29 . The TLR system of  claim 27  wherein: a machine screw links the bottom end of said breech bolt catch to the rear moving end of said breech bolt catch engaging lever.  
     
     
         30 . The TLR system of  claim 27  wherein: said hinge pin provides a pivot point for the front end of said breech bolt catch engaging lever and said cam following lever which, both, run from front to rear horizontally and are sandwiched side by side inside said handguns gripframe above its firing trigger below its barrel and just in front of its magazine well.  
     
     
         31 . The TLR system of  claim 27  wherein: said sliding cam provides for the eventual downward tangential releasing motion of said breech bolt catch by being affixed to an extension of and deriving its action from said firearms firing trigger.  
     
     
         32 . The TLR system of  claim 27  wherein: both said breech bolt catch engaging lever and said cam following lever arc from a radial attitude parallel to the motion of said sliding cam, which reciprocates from front to rear and projects downward.  
     
     
         33 . The TLR system of  claim 27  wherein: said breech bolt catch engaging levers rear end contacts said handgun firearms magazine cartridge feeder when it rises to the top of the empty magazine as said breech bolt moves rearward, and thus, said breech bolt catch engaging lever arcs upward, with the rising cartridge feeder, forcing said breech bolt catch to distend a notch in the bottom of said breech bolt, and thus further, said breech bolt is locked in its lock-back position or, otherwise known as, its breech open position.  
     
     
         34 . The TLR system of  claim 27  wherein: said cam following lever can arc on the same radius as said breech bolt catch engaging lever and can reciprocate on a tangent from that radius for the purpose of escaping the forward motion of the reciprocating action of said sliding cam and thus said firearms firing trigger can reset to the forward position, after being used to initiate the discharge of said firearm, without causing the breech bolt to close the breech.  
     
     
         35 . The TLR system of  claim 27  wherein: said cam following lever is a blade which lays on a flat side of said breech bolt catch engaging lever and has a triangular pawl projecting upward from its top edge and its ability to reciprocate independently is achieved by a horizontal closed ended slot in its front end, through which passes said hinge pin, and closed ended slot in its rear end, which inclines rearward, through which passes a front stud pin, protruding from the side of said breech bolt catch engaging lever.  
     
     
         36 . The TLR system of  claim 27  wherein: a rear stud pin which protrudes from the side of said breech bolt catch engaging lever limits the forward motion of said sliding cam and thus said handgun firearms firing trigger by contacting the front of said handgun firearm firing triggers sliding cam extension arm.  
     
     
         37 . The TLR system of  claim 27  wherein: said first extension spring loads said cam following levers pawl rearward and upward by tethering from said cam following lever to said breech bolt catch engaging lever.  
     
     
         38 . The TLR system of  claim 27 , wherein: said second extension spring loads said breech bolt catch engaging lever downward and said sliding cam forward by tethering from said sliding cams extension arm to an arm which projects upward from said breech bolt catch engaging lever.  
     
     
         39 . The TLR system of  claim 27  wherein: said breech bolt catch is disengaged, allowing said breech bolt to close, when said breech bolt catch engaging lever is forced to arc downward by said cam following lever which derives its tangential motion from the rearward movement of said sliding cam which is actuated by said firearms firing trigger.  
     
     
         40 . Any Trigger Operated Breech Bolt Lock-back Releasing (TLR) System which, by specific definition, is a system for any closed bolt firing automatic loading magazine fed firearm that utilizes the firing trigger, that which initiates the discharge of a firearm, to also initiate the release of a spring loaded firearm breech bolt from its lock-back position, also known as the breech open position, for the purpose of reloading without regard for what design of secondary mechanism converts the firing triggers rearward movement, only, into the tangential releasing movement of the breech bolt catch, further stating that there are many secondary mechanism designs capable of bringing this mechanical concept to a reality, but because they all accomplish the same task, they are all to be considered claimed herein.  
     
     
         41 . The TLR system of  claim 40  which: when utilized by a fully automatic closed bolt firing firearm, will enable a firearm to fire from either its breech bolt open or its breech bolt closed position.  
     
     
         42 . In a closed bolt firing delayed blowback automatic firearm having a reciprocating telescopic breech bolt with firing pin therein, a barrel, a frame and a firing hammer; an invention; comprising 
 (A) A breech bolt; having 
 (i) an L-shape  
 (ii) a lug which projects downward  
 (iii) a window  
 (iv) a slot;  
   (B) A barrel; that is 
 (i) configured to serve as a stressed member of the frame; the barrel having  
 (ii) a step  
 (iii) a recess;  
   (C) A breech bolt retaining hood; that is 
 (i) configured to guide the action of the reciprocating telescopic breech bolt; the breech bolt retaining hood having  
 (ii) an inverted U-shape  
 (iii) a front wall;  
   (D) Machine screws;    (E) A tension spring;    (F) A cross pin;    (G) Two locking balls;    (H) A compression spring;    (I) A bullet wedge; that is loaded forward by (H);    (J) A wedge retaining pin;    (K) A manual operating handle; that is 
 (i) blade-like; having  
 (ii) a slot in front end  
 (iii) a keyhole slot in the rear end  
 (iv) two grip pads;  
   (L) A rotating lockshaft; having 
 (i) a thumb operated wheel  
 (ii) status symbols  
 (iii) flats notched 180 degrees apart  
 (iv) a circumferential groove;  
   (M) A compression spring;    (N) A firing pin; that is loaded rearward by (M); the firing pin having 
 (i) a notch  
   (O) A compression spring;    (P) A detent pin; that is loaded upward by (O);    (Q) A rotating lockshaft retaining pin;    in which said components produce a breech bolt and breech bolt receiver with a thumb wheel operated rotating safety device; by having    (1) said breech bolt (A) retained to said barrel (B) with said breech bolt retaining hood (C).    (2) said breech bolt retaining hood (C) fastened to said barrel (B) with said machine screws (D).    (3) built within said breech bolt (A), said components (E, F, G, H, I, J, L, M, N, O, P and Q).    (4) said manual operating handle (K) sandwiched between said breech bolt (A) and said breech bolt retaining hood (C).    (5) said bullet wedge (I) parting said locking balls (G) so that said locking balls (G) protrude from said breech bolt (A) so that one locking ball (G) engages the recess in said breech bolt retaining hood (C) and one locking ball (G) engages said recess in said barrel (B), locking said breech bolt (A) in the breech closed position.    (6) said bullet wedge (I) linked to the slot in said manual operating handle (K) by said wedge retaining pin (J) which passes through the slot in said breech bolt (A) because said bullet wedge (I) is inside said breech bolt (A) and said manual operating handle (K) is outside said breech bolt (A).    (7) said rotating lockshaft (L) positioned so that; 
 (a) said rotating lockshaft's (L) thumb operated wheel is above said manual operating handle (K).  
 (b) said rotating lockshaft (L) is through the keyhole slot in said manual operating handle (K) and further, within said breech bolt (A) distending the notch in said firing pin (N) thus retaining said firing pin (N) in the breech bolt (A).  
 (c) flats notched into said rotating lockshaft (L) are within the notch in said firing pin (N) and more flats notched into said rotating lockshaft (L) are within the keyhole slot in said manual operating handle (K).  
 (d) status symbols on the surface of said rotating lockshaft (L) can be seen through a window in said breech bolt (A) to indicate said rotating lockshaft's (L) position.  
   (8) said rotating lockshaft's (L) circumferential groove distended by said rotating lockshaft retaining pin (Q) to retain said rotating lockshaft (L) within said breech bolt (A).    (9) said detent pin (P) contact the underside of said rotating lockshaft's (L) thumb operated wheel.    (10) said tension spring (E) tether from said cross pin (F) to the front wall of said breech bolt retaining hood (C) so as to load said breech bolt (A) forward.    (11) the step in said barrel (B) and the lug of said breech bolt (A) proportioned to limit the rearward travel of said breech bolt (A).    (12) the two grip pads of said manual operating handle (K) at the rear of said breech bolt (A) with the thumb operated wheel of said rotating lockshaft (L) between the two grip pads of said manual operating handle (K).    (13) said breech bolt (A); operable 
 (a) when fired, by striking said firing pin (N) with the firearm's firing hammer causing sufficient rearward force on said breech bolt (A) to make said locking balls (G) overcome the load that said bullet wedge (I) exerts on said locking balls (G) causing said locking balls (G) to retract into said breech bolt (A) as said breech bolt (A) recoils; this delays the blowback of said breech bolt (A) a fraction of a second.  
 (b) manually, by gripping the pads of said manual operating handle (K) and drawing rearward, said wedge retaining pin (J) as well as said bullet wedge (I) are also drawn rearward overcoming said compression spring (H) that loads said bullet wedge (I) at which point said locking balls (G) retract into said breech bolt (A) and said breech bolt (A) is drawn rearward overcoming said breech bolt's (A) tension spring (E).  
   (14) said rotating lockshaft (L); operable 
 (a) by turning said thumb wheel with any finger.  
 (b) to change from lock to unlock or unlock to lock position by advancing its rotation 90 degrees in either direction by having two lock and two unlock positons per each 360 degrees of rotation  
 (c) when rotated, to change, the revolutionary location of flats notched into the rotating lockshaft (L) and therefore whether or not the flats notched into the rotating lockshaft (L) encounter the notch in the firing pin (N) and the heyhole slot in the the manual operating handle (K).  
   
     
     
         43 .(new) A firearm comprising: 
 a barrel and an L-shaped breech block;    a breech bolt hood located above said barrel and at least partially enclosing the breech block;    an operating handle sandwiched between the breech block and the breech bolt hood when in a first locked position and located rearward of the of the breech bolt hood when in a second unlocked position;    a firing pin spring biased in the L-shaped breech block;    a locking means to lock the breech block in a closed position;    a rotating lockshaft located in an opening in the breech block wherein the rotating lockshaft blocks motion of the operating handle and the firing pin when in a locked position and permits motion of the operating handle and the firing pin when in an unlocked position.    
     
     
         44 .(new) A firearm of claim  43  wherein; 
 the locking means comprises locking balls located in apertures of the L-shaped breech block.  
 
     
     
         45 .(new) A firearm of claim  43  wherein; 
 the rotating lockshaft is attached to a thumbwheel which is manually operated and responsible for determining the position of the rotating lockshaft.  
 
     
     
         46 .(new) A firearm of claim  45  wherein; 
 a detent pin interacts with the thumbwheel to limit movement of the thumbwheel.