IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0363032
(2009-01-30)
|
등록번호 |
US-8132511
(2012-03-13)
|
발명자
/ 주소 |
- Epstein, Brett Neal
- Griesbach, Mark Andrew
|
출원인 / 주소 |
- American Pioneer Powder, Inc.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
3 |
초록
▼
A clean burning premeasured compressed charge for use in black powder firearms as well as cartridges. The premeasured compressed charge is manufactured to have a substantially desired shape which facilitates improved flame propagation by the leading end wall and along the exposed sidewall surfaces o
A clean burning premeasured compressed charge for use in black powder firearms as well as cartridges. The premeasured compressed charge is manufactured to have a substantially desired shape which facilitates improved flame propagation by the leading end wall and along the exposed sidewall surfaces of the compressed charge to result in a more complete and rapid burning of the compressed charge both from the leading end wall toward the trailing end wall and also radially inwardly from each one of the four sidewalls toward a center of the premeasured compressed charge. The premeasured compressed charge has a leading end portion and a trailing end portion and the leading end portion is either the same size or a smaller dimension than the trailing end portion.
대표청구항
▼
1. An improved premeasured compressed charge for use with a black powder firearm having a desired caliber of an intended firearm, the compressed charge comprising: a leading end portion and a trailing end portion, the leading end portion having a smaller dimension than both the trailing end portion
1. An improved premeasured compressed charge for use with a black powder firearm having a desired caliber of an intended firearm, the compressed charge comprising: a leading end portion and a trailing end portion, the leading end portion having a smaller dimension than both the trailing end portion and the desired caliber of the intended firearm, while the trailing end portion having a larger diagonal dimension than the desired caliber of the firearm such that the leading end portion of the compressed charge is received within the desired caliber of the firearm while the trailing end portion must be forced into the desired caliber of the firearm;the leading end portion of the compressed charge designed to be located closely adjacent an outlet of the flash channel of the firearm, following loading of the compressed charge within the firearm, and the leading end portion facilitating flame propagation of the flame along sidewalls of the compressed charge;wherein one of a density and a compaction of a volume of the compressed charge adjacent the leading end portion is between 0.1% to about 5% less than one of the density and the compaction of a volume of the charge adjacent the trailing end portion, so as to facilitate a complete combustion of the compressed charge upon discharge of the firearm. 2. The premeasured compressed charge according to claim 1, wherein the leading end portion traps a small amount of additional air within the volume of compressed charge adjacent the leading end portion and this trapped additional air facilitates combustion and also promotes rapid burning of the compressed charge upon discharge of the firearm. 3. The premeasured compressed charge according to claim 1, wherein the premeasured compressed charge has an axial length of between about 2.75 inches and about 0.350 inches. 4. The premeasured compressed charge according to claim 1, wherein at least the trailing end portion of the compressed charge has an interference fit with the muzzle end of the desired barrel so as to require force to insert the premeasured compressed charge completely into a breech end of the barrel. 5. The premeasured compressed charge according to claim 4, wherein the interference fit of the premeasured compressed charge is at least 0.001 of an inch. 6. The premeasured compressed charge according to claim 1, wherein only two of the sidewalls of the compressed charge taper outwardly from the leading end portion toward the trailing end portion of the premeasured compressed charge. 7. The premeasured compressed charge according to claim 6, wherein the premeasured compressed charge comprises a mixture of: 10-35% by weight of potassium perchlorate;25-60% by weight of potassium nitrate;25-50% by weight of a fuel component; and0-5% by weight of charcoal and carbon (lamp) black. 8. The premeasured compressed charge according to claim 7, wherein the fuel component is selected from the carbohydrate family. 9. The premeasured compressed charge according to claim 7, wherein the fuel component is selected from the group comprising at least one of the following: amino acid,ascorbic acid,sugar,starch, andcarbon. 10. The premeasured compressed charge according to claim 1, wherein the leading end portion has a similar dimension than both the trailing end portion and the desired caliber of the intended firearm, and the trailing end portion has a larger dimension than the desired caliber of the intended firearm such that the trailing end portion of the premeasured compressed charge must be forced in a barrel of the desired caliber of the firearm. 11. The premeasured compressed charge according to claim 1, wherein an end wall of the leading end portion and an end wall of the trailing end portion are both generally square in shape. 12. The premeasured compressed charge according to claim 1, wherein the compressed charge, upon insertion into a desired caliber firearm, has four small triangular wedge-shaped sections which have an interference fit with an internal diameter of the bore of the firearm, and the four small triangular wedge-shaped sections are shaven off from the premeasured compressed charge during insertion of the premeasured compressed charge into the bore of the barrel. 13. The premeasured compressed charge according to claim 12, wherein at least a portion of the shaved off four small triangular wedge-shaped sections tend to fall, by gravity, toward the outlet of the flash channel and facilitate the better flame propagation upon detonation of an ignition device. 14. The premeasured compressed charge according to claim 1, wherein the diagonal dimension of the leading end portion is between 0.31 of an inch and 0.53 of an inch and the diagonal dimension of the trailing end portion is between 0.37 of an inch and 0.59 of an inch. 15. The premeasured compressed charge according to claim 1, wherein the premeasured compressed charge comprises a mixture of: 10-35% by weight of potassium perchlorate;25-60% by weight of potassium nitrate;25-50% by weight of a fuel component; and0-5% by weight of one of charcoal and carbon (lamp) black. 16. The premeasured compressed charge according to claim 15, wherein the fuel component is selected from the carbohydrate family. 17. The premeasured compressed charge according to claim 15, wherein the fuel component is selected from the group comprising at least one of the following: amino acid,ascorbic acid,sugar,starch, andcarbon. 18. The premeasured compressed charge according to claim 1, wherein the premeasured compressed charge comprises a mixture of: 50-75% by weight of potassium nitrate;25-50% by weight of a fuel component; and0-5% by weight of charcoal and carbon (lamp) black. 19. The premeasured compressed charge according to claim 18, wherein the fuel component is selected from the carbohydrate family. 20. The premeasured compressed charge according to claim 18, wherein the fuel component is selected from the group comprising at least one of the following: amino acid,ascorbic acid,sugar,starch, andcarbon. 21. An improved premeasured compressed charge for use with a black powder firearm having a desired caliber of an intended firearm, the premeasured compressed charge comprising: a leading end portion and a trailing end portion; wherein the leading end portion of the premeasured compressed charge is located closely adjacent an outlet of the flash channel of the firearm, following loading of the premeasured compressed charge within the firearm, and the leading end portion facilitates flame propagation of the flame along sidewalls of the premeasured compressed charge, generated upon detonation of an ignition device, and one of a density and a compaction of a volume of the premeasured compressed charge adjacent the leading end portion is less than one of the density and the compaction of a volume of the premeasured compressed charge adjacent the trailing end portion, so as to facilitate the complete combustion of the premeasured compressed charge and reduce rocketing of the premeasured compressed charge following discharge of the projectile from a muzzle end of the firearm.
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