IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0540443
(2009-08-13)
|
등록번호 |
US-8141474
(2012-03-27)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
3 |
초록
▼
An improved mechanism for charging a gas powered firearm, especially with regard to the Kalashnikov variants of rifles known as AK-47s, comprising a modified gas tube having a lateral aperture formed into its left side, a semi-cylindrical sleeve suitably adapted to fit within the modified gas tube o
An improved mechanism for charging a gas powered firearm, especially with regard to the Kalashnikov variants of rifles known as AK-47s, comprising a modified gas tube having a lateral aperture formed into its left side, a semi-cylindrical sleeve suitably adapted to fit within the modified gas tube over the shaft of the operating rod, and a modified charging handle suitably adapted to connect to the sleeve and to extend from the firearm through the lateral aperture, such that the firearm may be manually charged from the left side by drawing the charging handle rearward; and providing safety improvements and a method of retrofitting firearms.
대표청구항
▼
1. An improved charging mechanism for a gas powered firearm, said firearm comprising a barrel, a firing chamber, a bolt assembly, a recoil spring mechanism in connection with a rear portion of the bolt assembly, an operating rod in connection with a front portion of the bolt assembly, an ammunition
1. An improved charging mechanism for a gas powered firearm, said firearm comprising a barrel, a firing chamber, a bolt assembly, a recoil spring mechanism in connection with a rear portion of the bolt assembly, an operating rod in connection with a front portion of the bolt assembly, an ammunition magazine having a spring loading mechanism, and a port formed into the barrel providing a communication between the barrel and a gas block,said improved charging mechanism comprisinga gas tube, said gas tube being in communication with the gas block such that gases created from the firing of a round of ammunition may be discharged from the barrel through the port and through the gas block into said gas tube,said gas tube having a substantially cylindrically shaped interior with a substantially constant inside diameter,said gas tube suitably adapted to accommodate within its interior the operating rod, whereby the operating rod has a forward portion, a rear portion, and a shaft interposed between the forward portion and the rear portion, said shaft having a length, with the operating rod able to move forward and rearward within said gas tube, andsaid gas tube further having a lateral aperture formed into its left side, passing through said gas tube into its interior, the lateral aperture running parallel to a longitudinal axis of said gas tube, with the lateral aperture having a front edge, a rear edge, a top edge, and a bottom edge, with the top and bottom edges substantially parallel to each other;a sleeve, said sleeve having a partial cylindrical configuration, with said sleeve being suitably adapted to be placed onto the shaft of the operating rod within the gas tube; anda charging handle, said charging handle suitably adapted to be removably attached to the sleeve, such that said charging handle extends from the sleeve through the lateral aperture of the gas tube and extends outward from the left side of the firearm;whereby movement of the charging handle rearward simultaneously moves the sleeve rearward, effecting rearward pressure upon the rear portion of the operating rod and thereby moving the operating rod and the bolt assembly rearward, which in turn opens the firing chamber, ejects any cartridge casing from the firing chamber, compresses the recoil spring mechanism, and allows a round of ammunition to be moved from the ammunition magazine by the spring loading mechanism into the firing chamber, andcessation of the application of a rearward force on the charging handle results in the recoil spring mechanism moving the bolt assembly forward and simultaneously moving the operating rod, the sleeve, and the charging handle forward, resulting in the newly chambered round being ready to be fired. 2. The improved charging mechanism of claim 1 wherein the sleeve is substantially semi-cylindrical. 3. The improved charging mechanism of claim 1 wherein the gas tube further comprises a notch, said notch formed into the lateral aperture along the top edge of the lateral aperture and proximate to the rear edge of the lateral aperture, said notch passing through the gas tube into its interior, said notch having a width suitably adapted to receive and hold the charging handle. 4. The improved charging mechanism of claim 1 wherein the front edge of the lateral aperture of the gas tube is located rearward of the location of the forward portion of the operating rod when the operating rod is in a forward position within said gas tube. 5. The improved charging mechanism of claim 1 wherein the forward portion of the operating rod has an outside diameter substantially the same as but not greater than the inside diameter of the gas tube, the shaft of the operating rod has an outside diameter less than the inside diameter of the gas tube, and the rear portion of the operating rod has an outside diameter greater than the outside diameter of the shaft of the operating rod but not greater than the inside diameter of said gas tube; andthe sleeve has an outside diameter substantially the same as but not greater than the inside diameter of the gas tube, an inside diameter substantially the same as but not less than the outside diameter of the shaft of the operating rod, and a length substantially the same as but not longer than the length of the shaft of the operating rod. 6. The improved charging mechanism of claim 1 wherein the charging handle comprises a shaft, whereby the shaft of the charging handle is suitably adapted to connect the charging handle to the sleeve. 7. The improved charging mechanism of claim 6 wherein the gas tube further comprises a notch, said notch formed into the lateral aperture along the top edge of the lateral aperture and proximate to the rear edge of the lateral aperture, said notch passing through the gas tube into its interior, said notch having a width suitably adapted to receive and hold the shaft of the charging handle. 8. The improved charging mechanism of claim 6 wherein the shaft of the charging handle comprises threads formed thereon and the sleeve comprises a threaded aperture formed therein, said threaded aperture suitably adapted to accommodate the threads formed onto the shaft of the charging handle,whereby the charging handle is connected to the sleeve by screwing the threaded shaft of the charging handle into the threaded aperture of the sleeve. 9. The improved charging mechanism of claim 6 wherein the sleeve comprises a pin extending laterally therefrom, said pin having threads formed thereupon, and the shaft of the charging handle comprises an end and a threaded aperture formed into the end of the shaft of the charging handle, said threaded aperture suitably adapted to accommodate the threads formed onto the shaft of said pin,whereby the charging handle is connected to the sleeve by screwing the threaded aperture in the end of the charging handle onto the threaded pin of the sleeve. 10. The improved charging mechanism of claim 6 wherein the charging handle further comprises a gripping member and a pivot mechanism, said gripping member oriented substantially perpendicular to the shaft of the charging handle, said pivot mechanism connecting said gripping member to the shaft of the charging handle, said pivot mechanism suitably adapted to permit the gripping member of the charging handle to be rotated forward toward the front of the firearm in a substantially horizontal orientation and rotated rearward to extend substantially vertically. 11. The improved charging mechanism of claim 6 wherein the charging handle further comprises a gripping member and a hinge mechanism, said hinge mechanism suitably adapted to permit the gripping member of the charging handle to be folded forward toward the firearm and unfolded to extend substantially perpendicularly from the firearm. 12. The improved charging mechanism of claim 7 wherein the shaft of the charging handle comprises threads formed thereon and the sleeve comprises a threaded aperture formed therein, said threaded aperture suitably adapted to accommodate the threads formed onto the shaft of the charging handle,whereby the charging handle is connected to the sleeve by screwing the threaded shaft of the charging handle into the threaded aperture of the sleeve. 13. The improved charging mechanism of claim 7 wherein the sleeve comprises a pin extending laterally therefrom, said pin having threads formed thereupon, and the shaft of the charging handle comprises an end and a threaded aperture formed into the end of the shaft of the charging handle, said threaded aperture suitably adapted to accommodate the threads formed onto the shaft of said pin,whereby the charging handle is connected to the sleeve by screwing the threaded aperture in the end of the charging handle onto the threaded pin of the sleeve. 14. The improved charging mechanism of claim 7 wherein the charging handle further comprises a gripping member and a pivot mechanism, said gripping member oriented substantially perpendicular to the shaft of the charging handle, said pivot mechanism connecting said gripping member to the shaft of the charging handle, said pivot mechanism suitably adapted to permit the gripping member of the charging handle to be rotated forward toward the front of the firearm in a substantially horizontal orientation and rotated rearward to extend substantially vertically. 15. The improved charging mechanism of claim 7 wherein the charging handle further comprises a gripping member and a hinge mechanism, said hinge mechanism suitably adapted to permit the gripping member of the charging handle to be folded forward toward the firearm and unfolded to extend from the firearm.
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