[특허]Breach plug for muzzleloading rifle

[미국특허] Breach plug for muzzleloading rifle 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F41C-007/00 B64D-001/04 B64D-001/00
출원번호	UP-0612898 (2006-12-19)
등록번호	US-7526888 (2009-07-01)
발명자 / 주소	Joyce, Roger D.
대리인 / 주소	Brackett, Alexander
인용정보	피인용 횟수 : 8 인용 특허 : 31

초록 ▼

The present invention provides a two piece breech plug for converting a breech loading firearm to a muzzle loading firearm. The invention includes a forward breech plug having a powder chamber and a flash passage and a nesting rear breech plug having a primer pocket therein for accepting a primer an

대표청구항 ▼

I claim: 1. A two piece breech plug for converting a breech loading firearm having a barrel with a muzzle end and a breech end into a muzzle-loading firearm comprising: a breech plug comprising: a forward plug having a powder chamber open towards the muzzle end of said firearm at a forward portion thereof and a flash passage in a rear portion thereof in fluid communication with said powder chamber, said rear portion having a pair of spaced notches therein for accepting a pair of spaced protrusions of an insertion and removal tool; and a rear plug having a primer pocket at a rear end thereof for accepting a primer and a flash passage between said primer pocket and an interior portion of said rear plug wherein the flash passages of said forward and rear plugs generally align when said plugs are secured in said breech. 2. A two piece breech plug as claimed in claim 1 further comprising: a plurality of helical threads disposed about a generally cylindrical exterior surface of said forward plug and said rear plug for securing said forward and rear plugs, respectively, in the breech of said firearm barrel. 3. A two piece breech plug as claimed in claim 2 wherein said forward plug has a thread diameter smaller than said rear plug thread diameter. 4. A two-piece breech plug as claimed in claim 2 wherein said helical threads of said forward plug are left-handed threads and wherein said helical threads of said rear plug are right-handed threads. 5. A two-piece breech plug as claimed in claim 2 wherein said helical threads of said forward plug are right-handed threads and wherein said helical threads of said rear plug are left-handed threads. 6. A two piece breech plug as claimed in claim 1 wherein said rear plug further comprises a rear portion having a pair of spaced notches therein for accepting a pair of spaced protrusions of an insertion and removal tool. 7. A two piece breech plug as claimed in claim 6 wherein said rear plug rear portion is an annulus surrounding said primer pocket. 8. A two piece breech plug as claimed in claim 6 wherein the pair of spaced notches in said rear portion are semi-cylindrical. 9. A two piece breech plug as claimed in claim 1 wherein said forward plug rear portion is an annulus shaped to nest in the interior portion of said rear plug. 10. A two piece breech plug as claimed in claim 1 wherein the said pair of spaced notches in said rear portion are semi-cylindrical. 11. A two piece breech plug for converting a breech loading firearm having a barrel with a muzzle end and a breech end into a muzzle-loading firearm comprising: a forward plug having a powder chamber in fluid communication with a rear annular portion via a flash passage therebetween and a pair of spaced notches in said annular portion; and a rear plug having a primer pocket in a rear portion thereof, a generally cylindrical interior portion, and a flash passage situated between said interior portion and said primer pocket, wherein said annular portion of said forward plug engages said interior portion of said rear plug. 12. A two piece breech plug as claimed in claim 11 wherein the flash passages of said forward plug and said rear plug are closely aligned. 13. A two piece breech plug as claimed in claim 11 further comprising: a plurality of helical threads disposed about an outer surface of both the forward plug and the rear plug for securing said plugs in the barrel of said firearm. 14. A two piece breech plug as claimed in claim 13 wherein said helical threads of said forward plug are left-handed threads and wherein said helical threads of said rear plug are right-handed threads. 15. A two piece breech plug as claimed in claim 13 wherein said helical threads of said forward plug are right-handed threads and wherein said helical threads of said rear plug are left-handed threads. 16. A two piece breech plug as claimed in claim 11 further comprising: a pair of spaced notches in the rear portion of said rear plug for engaging a pair of spaced protrusions of an insertion and removal tool. 17. A two piece breech plug as claimed in claim 11 further comprising: a blank plug having a generally cylindrical interior portion for engaging said annular portion of said forward plug. 18. A two piece breech plug as claimed in claim 11 wherein said primer pocket is sized to accept a shotgun primer. 19. A two piece breech plug as claimed in claim 11 wherein said primer pocket is sized to accept a rifle primer. 20. A two piece breech plug as claimed in claim 11 wherein said primer pocket is sized to accept a magnum rifle primer.

이 특허에 인용된 특허 (31) 인용/피인용 타임라인 분석

Joyce, Roger Dale, Apparatus for conversion of breech-loading firearms into muzzle-loading firearms.
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Knight William A. (Plano IA), Breech plug and ignition system for muzzle-loading firearm.
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Ball Henry C., Breech plug for a muzzle-loading firearm.
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Knight William A. (Plano IA), Breech plug for a muzzle-loading firearm.
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Cate Gordon R., Breech plug for muzzle loading firearm.
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Cate, Gordon R., Breech plug for muzzle loading firearm.
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McGarity ; Jr. William D. ; Echeberria Julian,ESX, Breech plug primer cap adapter.
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Rodney ; Jr. Frederick W. (134 Flagg Rd. Rochester NH 03867), Closed breech muzzle loader and loading tool.
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Chapin Paul D. (1936 Fifth St. Ceres CA 95307), Combination breech-loading to muzzle-loading firearm converting device and projectile casing.
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Brown James R. (9181 Tarbutton Rd. South Vienna OH 45369) Sirons Karlis A. (2482 Fox Hollow Rd. Springfield OH 45502), Conversion of modern shotguns into muzzleloading shotguns.
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Lee Thomas M. (17 Prospect St. Millbury MA 01527) Kupfer Charles (South Oxford Rd. West Millbury MA 01527), Conversion plug.
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Osborne William E. (Guilford CT) Waterman ; Jr. Harold J. (Wallingford CT) Findlay David (Guildford CT), Detonator assembly.
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French Kendrick L. (Lebanon ME) Laney Mark C. (New Market NH), Firearm.
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Hengstenberg, Eric T., Firing element for muzzleloading rifle.
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Michel Martel CA, Firing nipple for muzzle loading firearm.
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Laney Mark C., Ignition assembly for muzzle loading firearm.
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Peters Franz J. (Paderborn DEX), Interchangeable barrel for Colt self-loading pistols.
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Ball Henry C. (1315 Fairmont Greensboro NC 27403) Marion Millard C. (159 Wolfetrail Rd. Greensboro NC 27406), Lock-action muzzle loader.
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Ball Henry C. (1315 Fairmont Greensboro NC 27403) Marion Millard C. (Greensboro NC), Lock-action muzzle loader.
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Ball Henry C. ; Marion Millard C., Lock-action muzzle loader.
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Rodney ; Jr. Frederick W., Muzzle loader with smokeless powder capability.
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Kenneth E. Johnston, Muzzle loading firearm and adaptor.
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Mahn Gary (9470 Oriole Dr. Coopersville MI 49404) Bowman Gary (871 Dolphin St. ; SW. Wyoming MI 49509), Muzzle loading firearm ignition system.
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Garland,Gene L., Muzzle loading rifle with movable extractor.
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Hildebrandt, Carl B.; Hodgdon, Charles W.; Coburn, Ronald; Cavanaugh, Lee; Adham, Yasmine A.; Borecki, Daniel; Ball, Henry C., Muzzle-loading firearm.
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DeLeeuw,David C., Muzzle-loading firearm and easily removable breech plug for use therewith.
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Yoder David Duane, Percussion cap device.
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Camp, Thomas, Plug for a firearm.
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Verney Carron Claude (23 Ter rue Emile Clermont 42100 Saint Etienne FRX), Plug for shotgun or rifle barrel using black powder.
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Ramsey Del, Self aligning tool for inserting percussion caps on firing nipples.
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Oakley Kevin Noel, Shotgun converter plug.
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이 특허를 인용한 특허 (8) 인용/피인용 타임라인 분석

Warburton, Scott, Chamber safety flag for a firearm.
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Horak, Luke William, High performance muzzle loading breech plug.
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Anders, Michael, Muzzle loader unloading tool.
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Laney, Mark C.; Ritz, Gregory James, Muzzle loading firearm with removable breech cap.
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Lizarralde Ibarguren, Iñigo, Muzzle-loading rifle equipped with a gunpowder-proof sealed breech plug.
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Hendricks, Mark D.; Morgan, Kenneth L., Open ignition breech plug and conversion system and method for muzzle-loading firearm.
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Hendricks, Mark D.; Morgan, Kenneth L., Open ignition breech plug and conversion system and method for muzzle-loading firearm.
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Steele, Foster, Speed loader for black powder arms and related methods.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
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[미국특허] Breach plug for muzzleloading rifle 원문보기

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[미국특허] Breach plug for muzzleloading rifle 원문보기

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