Patent Application
20210396502
Not applicable.
Not applicable.
No prior art is known to the Applicant
A cartridge for improving explosive dynamics of ammunition. Said cartridge comprises a casing comprising a powder chamber. Said powder chamber comprising a powder chamber length among a plurality of inner chambers. Said plurality of inner chambers comprise at least a first chamber, and a second chamber. Said casing comprises a powder chamber casing portion comprising a portion of said casing wrapped around side portions of said powder chamber. A cartridge chamber inner wall comprises an inner portion of said powder chamber casing portion. Said powder chamber casing portion comprises a plurality of thicknesses which comprise at least a first thickness and a second thickness. Said first chamber comprises a first chamber length, a first inner diameter, and said first thickness of said casing around said first chamber. Said second chamber comprises a second chamber length, a second inner diameter, and said second thickness of said casing around said second chamber. Said first thickness is larger than said second thickness. A first inner diameter of said first chamber is smaller than said second inner diameter of said second chamber. Said powder chamber comprises a primer end, and a bullet end. Said first chamber comprises a portion of said powder chamber proximate to said primer end. Said second chamber comprises a portion of said powder chamber proximate to said bullet end. Said first chamber length is configured to substantially encompass an initial explosion within a primer pocket, and said first thickness is better suited to absorb pressure from said initial explosion and direct it forward toward said bullet end of said primer pocket. A forward traveling initial pressure results from said initial explosion. Said forward traveling initial pressure travels from said primer end to said bullet end. a portion of said forward traveling initial pressure then travels back from said bullet end to said primer end as a backpressure. Said plurality of inner chambers are configured to expand as said forward traveling initial pressure travels from said first chamber to said second chamber. Said plurality of inner chambers are configured to direct said backpressure toward a centerline of said first chamber rather than into its corners at a first chamber radius. relative to the movement of said backpressure, a plurality of stages will cause pressure to reduce and be directed toward said centerline of said first chamber rather than into its corners at said first chamber radius.
Said cartridge for improving explosive dynamics of ammunition. Said cartridge comprises said casing comprising said powder chamber. Said powder chamber comprising said powder chamber length among said plurality of inner chambers. Said plurality of inner chambers comprise at least said first chamber, and said second chamber. Said casing comprises said powder chamber casing portion comprising a portion of said casing wrapped around side portions of said powder chamber. Said cartridge chamber inner wall comprises an inner portion of said powder chamber casing portion. Said powder chamber casing portion comprises said plurality of thicknesses which comprise at least said first thickness and said second thickness. Said first chamber comprises said first chamber length, said first inner diameter, and said first thickness of said casing around said first chamber. Said second chamber comprises said second chamber length, said second inner diameter, and said second thickness of said casing around said second chamber. Said first thickness is larger than said second thickness. Said first inner diameter of said first chamber is smaller than said second inner diameter of said second chamber. Said powder chamber comprises said primer end, and said bullet end. Said first chamber comprises a portion of said powder chamber proximate to said primer end. Said second chamber comprises a portion of said powder chamber proximate to said bullet end. Said first chamber length is configured to substantially encompass said initial explosion within said primer pocket, and said first thickness is better suited to absorb pressure from said initial explosion and direct it forward toward said bullet end of said primer pocket.
Said cartridge for improving explosive dynamics of ammunition. Said cartridge comprises said casing comprising said powder chamber. Said powder chamber comprising said powder chamber length among said plurality of inner chambers. Said plurality of inner chambers comprise at least said first chamber, and said second chamber. Said casing comprises said powder chamber casing portion comprising a portion of said casing wrapped around side portions of said powder chamber. Said cartridge chamber inner wall comprises an inner portion of said powder chamber casing portion. Said powder chamber casing portion comprises said plurality of thicknesses which comprise at least said first thickness and said second thickness. Said first chamber comprises said first chamber length, said first inner diameter, and said first thickness of said casing around said first chamber. Said second chamber comprises said second chamber length, said second inner diameter, and said second thickness of said casing around said second chamber. Said first thickness is larger than said second thickness. Said first inner diameter of said first chamber is smaller than said second inner diameter of said second chamber. Said powder chamber comprises said primer end, and said bullet end. Said first chamber comprises a portion of said powder chamber proximate to said primer end. Said second chamber comprises a portion of said powder chamber proximate to said bullet end. Said first chamber length is configured to substantially encompass said initial explosion within said primer pocket, and said first thickness is better suited to absorb pressure from said initial explosion and direct it forward toward said bullet end of said primer pocket. Said first chamber comprises a first chamber volume. Said first inner diameter of said first chamber is smaller than said second inner diameter of said second chamber, said first chamber volume will consequently be smaller than it would have been should said first inner diameter and said second inner diameter were substantially identical. Said cartridge is configured to reduce a powder usage proximate to said primer end in said first chamber as compared to the prior art.
The following description is presented to enable any person skilled in the art to make and use the invention as claimed and is provided in the context of the particular examples discussed below, variations of which will be readily apparent to those skilled in the art. In the interest of clarity, not all features of an actual implementation are described in this specification. It will be appreciated that in the development of any such actual implementation (as in any development project), design decisions must be made to achieve the designers' specific goals (e.g., compliance with system- and business-related constraints), and that these goals will vary from one implementation to another. It will also be appreciated that such development effort might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the field of the appropriate art having the benefit of this disclosure. Accordingly, the claims appended hereto are not intended to be limited by the disclosed embodiments, but are to be accorded their widest scope consistent with the principles and features disclosed herein.
In one embodiment, said one or more prior art casings 100 can comprise a first prior art casing 100a, a second prior art casing 100b, a third prior art casing 100c, and a fourth prior art casing 100d. each among said one or more prior art casings 100 can be cross referenced with US patents US20120180689A1, US20140318404A1, US20160245630A1, and U.S. Pat. No. 1,669,969A, respectively.
Each among said one or more prior art casings 100 can comprise a casing 102, a primer end 104, a bullet end 106, a primer pocket 108, a powder chamber 110, and a cartridge chamber inner wall 112.
Said powder chamber 110 can comprise a first chamber 114 (being proximate to said primer end 104) and a second chamber 116 proximate to said bullet end 106.
As illustrated, said powder chamber 110 of said one or more prior art casings 100 can have varying geometries. For example, said first chamber 114 can comprise a first inner diameter 118 near said powder chamber 110 and expand outward to a second inner diameter 120, causing an outward taper said cartridge chamber inner wall 112 as shown in said third prior art casing 100c. Wherein, said first inner diameter 118 is smaller than said second inner diameter 120.
In one embodiment, said multi-stage inner chamber configuration 302 of said powder chamber 110 can comprise at least a first chamber 334 having a first inner diameter 314 and a first chamber length 304, one or more intermediate chambers 308 having a varying diameter and an intermediate chambers length 310, and a second chamber 336 having a second inner diameter 322 and a second chamber length 306. Together, a plurality of inner chambers 340 can comprise a powder chamber length 344.
In one embodiment, said one or more intermediate chambers 308 can be arranged between said first chamber 334 and said second chamber 336, as illustrated. Said first inner diameter 314 can be smaller than said second inner diameter 322 such that said one or more intermediate chambers 308 can expand uniformly or in stages (as illustrated) to allow said plurality of inner chambers 340 to expand to said second inner diameter 322.
In one embodiment, said powder chamber 110 at said primer end 104 can comprise a first chamber radius 312 to avoid sharp edges through a transition from said cartridge chamber inner wall 112 and a primer-end chamber face 328.
In one embodiment, said multi-stage inner chamber configuration 302 can comprise said first inner diameter 314 at said primer end 104 within said first chamber 334; a first intermediate inner diameter 316, a second intermediate inner diameter 318, and a third intermediate inner diameter 320, within said one or more intermediate chambers 308, each increasing in size as between said first chamber 334 and said second chamber 336; and said second inner diameter 322 proximate to said bullet end 106 within said second chamber 336.
Each of said first inner diameter 314, said first intermediate inner diameter 316, said second intermediate inner diameter 318, said third intermediate inner diameter 320 and said second inner diameter 322 can be internal diameters of said multi-stage inner chamber configuration 302.
In one embodiment, said casing 102 of said cartridge 300 can comprise a plurality of thicknesses 324 (which can comprise a first thickness 324a, a second thickness 324b, and a third thickness 324c) at various parts of said cartridge chamber inner wall 112. Described herein, said first thickness 324a can comprise a portion proximate to said primer end 104, and said second thickness 324b can comprise a portion at or near said second inner diameter 322 or said bullet end 106.
Said cartridge 300 can comprise a thicker portion at said first thickness 324a than said second thickness 324b to protect said casing 102 from damage due to a backpressure 326 (illustrated below).
In one embodiment, said casing 102 can comprise an external diameter 330 measured around a powder chamber casing portion 332.
In one embodiment, said primer end 104 can comprise a primer end thickness 346 measured between said primer-end chamber face 328 and a bottom side 348 of said cartridge 300.
In one embodiment, said cartridge chamber inner wall 112 of said multi-stage inner chamber configuration 302 can comprise a plurality of stages 400 between said primer end 104 and said bullet end 106. Said plurality of stages 400 can comprise a first stage 400a, a second stage 400b, a third stage 400c, and a fourth stage 400d. In one embodiment, each among said plurality of stages 400 can comprise one or more relative angles 402 (which can comprise a first relative angle 402a, a second relative angle 402b, a third relative angle 402c, and a fourth relative angle 402d) between a horizontal plane and said cartridge chamber inner wall 112 at the respective stage. For example, each of these angles and segments can related to one another: said first relative angle 402a to said first stage 400a; said second relative angle 402b to said second stage 400b; said third relative angle 402c to said third stage 400c; and said fourth relative angle 402d to said fourth stage 400d. For clarity, said plurality of stages 400 are presented in order from said first chamber 334 toward said second chamber 336; with said first stage 400a being proximate to said primer end 104 and said fourth stage 400d proximate to said bullet end 106.
In one embodiment, said first stage 400a can comprise a 0-degree angle. Next, said first stage 400a, said second relative angle 402b, said third relative angle 402c can be progressively larger than the proceeding angle. And finally, said fourth relative angle 402d can be approximately 0 degrees again. Consequently, said multi-stage inner chamber configuration 302 can expand more quickly while traveling forward out of said first chamber 334 and then progressively approach a flattened angle as said multi-stage inner chamber configuration 302 approaches said bullet end 106.
In one embodiment, an initial explosion 406 can occur in said first chamber 334 and travel forward within said multi-stage inner chamber configuration 302 in an initial forward blast 404; as pressure builds within said cartridge 300, said backpressure 326 can move rearward along said cartridge chamber inner wall 112.
Due to the shape of said cartridge chamber inner wall 112 within said cartridge 300, at least three advantageous dynamics can occur. First, said initial explosion 406 can be contained within said first chamber 334, since said first chamber 334 can be engineered with said first chamber length 304 being long enough to substantially encompass said initial explosion 406. Likewise, since said first chamber length 304 can be larger than an anticipated explosion length 508, said first thickness 324a can be thick enough to resist deformation due to said initial explosion 406.
Second, a forward traveling initial pressure 408 can result from said initial explosion 406. Since said forward traveling initial pressure 408 will be traveling along said one or more intermediate chambers 308 and said second chamber 336 in route said bullet end 106, said one or more intermediate chambers 308 with said one or more relative angles 402 can be designed to shape said forward traveling initial pressure 408 to initially expand to fill said multi-stage inner chamber configuration 302 at said second chamber 336. In one embodiment, since each among said first inner diameter 314, said first intermediate inner diameter 316, said second intermediate inner diameter 318, said third intermediate inner diameter 320 and said second inner diameter 322 are larger than the previous diameter, said forward traveling initial pressure 408 can expand as it travels from said primer end 104 to said bullet end 106.
Finally, a third advantage can comprise shaping said backpressure 326 in its rearward travel. Relative to the movement of said backpressure 326, said plurality of stages 400 will cause pressure to reduce and be directed toward a centerline 410 of said first chamber 334 rather than into its corners at said first chamber radius 312.
In one embodiment, a powder 412 contained within said powder chamber 110 can be considered a fuse. Wherein, once ignited, the fuse has a very short window of time to burn before the useful reaction is completed. One example of an efficient reaction is a system that results in three quarters of said powder 412 from said powder chamber 110 being burned within the case. Naturally, a longer barrel firearm will allow for a longer burn time and a more efficient explosion.
In working in this field, the designer must plan for cold air within said powder chamber 110. One approach is to design said cartridge 300 to minimize a powder chamber volume 414 of said powder chamber 110 and thereby eliminate cold air and maximize burn rates of the powder. Herein, said cartridge 300 is designed with said multi-stage inner chamber configuration 302 to ensure a more efficient burning of said powder 412, or the “fuse” as discussed herein. Although the size of the firearm may bear on design parameters such as said powder chamber volume 414, in one embodiment, said cartridge 300 can comprise a smaller said powder chamber volume 414 and less said powder 412 than the prior art due to the efficiency of the reactions within said cartridge 300, as illustrated and discussed herein.
Said first chamber 334 can comprise a first chamber volume 350. Since, in one embodiment, said first inner diameter 314 of said first chamber 334 is smaller than said second inner diameter 322 of said second chamber 336, said first chamber volume 350 will consequently be smaller than it would have been should said first inner diameter 314 and said second inner diameter 322 were substantially identical. Accordingly, said cartridge 300 is configured to reduce said powder 412 usage proximate to said primer end 104 in said first chamber 334 as compared to the prior art.
In one embodiment, said powder chamber volume 414 at said first chamber 334 can comprise a critical parameter. Said first chamber 334 can be designed to substantially hold the calculated size of said initial explosion 406 to ensure an efficient reaction within said powder chamber 110.
In one embodiment, the geometry of said one or more intermediate chambers 308 can shape said backpressure 326 as it travels back toward said primer end 104. Whereas, the prior art cases would direct said backpressure 326 directly into said primer-end chamber face 328 and a corner where said cartridge chamber inner wall 112 and said backpressure 326 meet. Consequently, said backpressure 326 will be destructive to said primer pocket 108. Here however, said backpressure 326 will be directed inward toward said centerline 410 and, further, be turned gently at said first chamber radius 312 upon arriving at said primer-end chamber face 328.
Like said cartridge 300, said second cartridge embodiment 500 can comprise said first chamber 334, said second chamber 336 and said one or more intermediate chambers 308. However, in this case, due to the size of said second cartridge embodiment 500 and said anticipated explosion length 508 of said initial explosion 406, said first chamber 334 can comprise a shorter relative rearward chamber length 502. In one embodiment, said anticipated explosion length 508 can be arrived at by calculations, experimentation, or both.
Accordingly, said powder chamber length 344 (such as said first chamber length 304 or said shorter relative rearward chamber length 502, said second chamber length 306, and said intermediate chambers length 310) of each of said plurality of inner chambers 340 (such as said first chamber 334, said second chamber 336, and said one or more intermediate chambers 308) can be calculated for each type of cartridge according to anticipated dynamics of said initial explosion 406, said forward traveling initial pressure 408 and said backpressure 326.
Accordingly, said cartridge 300 can comprise said powder chamber 110 having at least said first chamber 334, and said second chamber 336. Said first chamber 334 can comprise said first chamber length 304 and said first thickness 324a, said second chamber 336 can comprise said second thickness 324b. Said first thickness 324a can be larger than said second thickness 324b. Wherein, said first chamber length 304 can be calculated to substantially encompass said initial explosion 406 within said primer pocket 108, and said first thickness 324a can be better suited to absorb pressure from said initial explosion 406 and direct it forward toward said bullet end 106 of said primer pocket 108.
As is known in the art, said primer pocket 108 can extend into said powder chamber 110 through said flash hole 604.
In one embodiment, said third cartridge 600 of said cartridge 300 can comprise an improvement in said flash hole 604 by providing a flash hole extension 612 comprising a portion of said flash hole 604 into said one or more prior art casings 100 beyond said primer-end chamber face 328 to cause a portion of said powder chamber 110 to be located behind a chamber interface 614 between said powder chamber 110 and said flash hole 604. Additionally, said first chamber radius 312 can extend back to where said primer-end chamber face 328 would have been and then forward and up to said chamber interface 614 creating a longer sweep of the radius and thereby further eliminating sharp edges within said powder chamber 110 proximate to said chamber interface 614.
Said third cartridge 600 can comprise a “volcano design” comprising said flash hole extension 602 which can be designed to ensure a primer explosion 610 from the primer is forced deeper into said powder chamber 110. Further, said primer explosion 610 can be centralized and narrowed.
In one embodiment, such as said fourth cartridge 700, said flash hole 604 can taper from a first flash hole diameter 606 to a second flash hole diameter 608 as between said primer pocket 108 and said powder chamber 110. Accordingly, said flash hole 604 can cause said primer explosion 610 from a primer explosion to be shaped and pressed further into said powder chamber 110 due to an inward taper 616 of said flash hole 604. Consequently, said primer explosion 610 can reach further into said powder chamber 110 and can therefore have a greater explosive effect.
Likewise, in cases where said flash hole 604 decreases in size from said first flash hole diameter 606 to said second flash hole diameter 608, said primer explosion 610 is even smaller and more forceful as it enters said powder chamber 110. Thereby, the fuse has an even lower delay resulting a more efficient burn of the powder in said powder chamber 110.
By getting deeper, the initial explosion can be partially directed backward toward the back wall as the explosion will be forward of the backwall. This creates a secondary combustion within said powder chamber 110, and thereby creates extra energy at the primer end of said cartridge 300.
It is noted that, as illustrated in said fourth cartridge 700, the use of said flash hole extension 602 need not be included when said inward taper 616 of said flash hole 604. Likewise, said inward taper 616 may be omitted when including said flash hole extension 602 and/or said first chamber radius 312.
In one embodiment, said cartridge 300 could embrace innovations from said third cartridge 600 and or said fourth cartridge 700 with regard to said flash hole 604 depending on the size of ammunition and burn characteristics desired.
In one embodiment, a design complication arises with larger ammunition. Namely, it can be difficult to burn all said powder 412 in larger format rounds. Some companies have addressed this by inserting multiple power types with different burn rates into said powder chamber 110. However, it would be advantageous to use a uniform powder type. Innovations described herein can overcome the need for various powder types by altering the geometry of said powder chamber 110.
By varying the use of the three inventions, an optimum use of powder can be created.
The following listing of the parts in the specification is included for the convenience of the reader:
said one or more prior art casings 100,
said first prior art casing 100a,
said second prior art casing 100b,
said third prior art casing 100c,
said fourth prior art casing 100d,
said casing 102,
said primer end 104,
said bullet end 106,
said primer pocket 108,
said powder chamber 110,
said cartridge chamber inner wall 112,
said first chamber 114,
said second chamber 116,
said first inner diameter 118,
said second inner diameter 120,
said cartridge 300,
said multi-stage inner chamber configuration 302,
said first chamber length 304,
said second chamber length 306,
said one or more intermediate chambers 308,
said intermediate chambers length 310,
said first chamber radius 312,
said first inner diameter 314,
said first intermediate inner diameter 316,
said second intermediate inner diameter 318,
said third intermediate inner diameter 320,
said second inner diameter 322,
said plurality of thicknesses 324,
said first thickness 324a,
said second thickness 324b,
said third thickness 324c,
said backpressure 326,
said primer-end chamber face 328,
said external diameter 330,
said powder chamber casing portion 332,
said first chamber 334,
said second chamber 336,
said plurality of inner chambers 340,
said powder chamber length 344,
said primer end thickness 346,
said bottom side 348,
said first chamber volume 350,
said plurality of stages 400,
said first stage 400a,
said second stage 400b,
said third stage 400c,
said fourth stage 400d,
said one or more relative angles 402,
said first relative angle 402a,
said second relative angle 402b,
said third relative angle 402c,
said fourth relative angle 402d,
said initial forward blast 404,
said initial explosion 406,
said forward traveling initial pressure 408,
said centerline 410,
said powder 412,
said powder chamber volume 414,
said second cartridge embodiment 500,
said shorter relative rearward chamber length 502,
said anticipated explosion length 508,
said third cartridge 600,
said flash hole extension 602,
said flash hole 604,
said first flash hole diameter 606,
said second flash hole diameter 608,
said primer explosion 610,
said flash hole extension 612,
said chamber interface 614,
said inward taper 616 and
said fourth cartridge 700.
The following sentences are provided as a summary of the claims and represent the preferred embodiment:
Said cartridge 300 for improving explosive dynamics of ammunition. Said cartridge 300 comprises said casing 102 comprising said powder chamber 110. Said powder chamber 110 comprising said powder chamber length 344 among said plurality of inner chambers 340. Said plurality of inner chambers 340 comprise at least said first chamber 334, and said second chamber 336. Said casing 102 comprises said powder chamber casing portion 332 comprising a portion of said casing 102 wrapped around side portions of said powder chamber 110. Said cartridge chamber inner wall 112 comprises an inner portion of said powder chamber casing portion 332. Said powder chamber casing portion 332 comprises said plurality of thicknesses 324 which comprise at least said first thickness 324a and said second thickness 324b. Said first chamber 334 comprises said first chamber length 304, said first inner diameter 118, and said first thickness 324a of said casing 102 around said first chamber 334. Said second chamber 336 comprises said second chamber length 306, said second inner diameter 322, and said second thickness 324b of said casing 102 around said second chamber 336. Said first thickness 324a can be larger than said second thickness 324b. Said first inner diameter 314 of said first chamber 334 can be smaller than said second inner diameter 322 of said second chamber 336. Said powder chamber 110 comprises said primer end 104, and said bullet end 106. Said first chamber 334 comprises a portion of said powder chamber 110 proximate to said primer end 104. Said second chamber 336 comprises a portion of said powder chamber 110 proximate to said bullet end 106. Said first chamber length 304 can be configured to substantially encompass said initial explosion 406 within said primer pocket 108, and said first thickness 324a can be better suited to absorb pressure from said initial explosion 406 and direct it forward toward said bullet end 106 of said primer pocket 108. Said forward traveling initial pressure 408 results from said initial explosion 406. Said forward traveling initial pressure 408 travels from said primer end 104 to said bullet end 106. a portion of said forward traveling initial pressure 408 then travels back from said bullet end 106 to said primer end 104 as said backpressure 326. Said plurality of inner chambers 340 can be configured to expand as said forward traveling initial pressure 408 travels from said first chamber 334 to said second chamber 336. Said plurality of inner chambers 340 can be configured to direct said backpressure 326 toward said centerline 410 of said first chamber 334 rather than into its corners at said first chamber radius 312. relative to the movement of said backpressure 326, said plurality of stages 400 will cause pressure to reduce and be directed toward said centerline 410 of said first chamber 334 rather than into its corners at said first chamber radius 312.
Said cartridge 300 for improving explosive dynamics of ammunition. Said cartridge 300 comprises said casing 102 comprising said powder chamber 110. Said powder chamber 110 comprising said powder chamber length 344 among said plurality of inner chambers 340. Said plurality of inner chambers 340 comprise at least said first chamber 334, and said second chamber 336. Said casing 102 comprises said powder chamber casing portion 332 comprising a portion of said casing 102 wrapped around side portions of said powder chamber 110. Said cartridge chamber inner wall 112 comprises an inner portion of said powder chamber casing portion 332. Said powder chamber casing portion 332 comprises said plurality of thicknesses 324 which comprise at least said first thickness 324a and said second thickness 324b. Said first chamber 334 comprises said first chamber length 304, said first inner diameter 118, and said first thickness 324a of said casing 102 around said first chamber 334. Said second chamber 336 comprises said second chamber length 306, said second inner diameter 322, and said second thickness 324b of said casing 102 around said second chamber 336. Said first thickness 324a can be larger than said second thickness 324b. Said first inner diameter 314 of said first chamber 334 can be smaller than said second inner diameter 322 of said second chamber 336. Said powder chamber 110 comprises said primer end 104, and said bullet end 106. Said first chamber 334 comprises a portion of said powder chamber 110 proximate to said primer end 104. Said second chamber 336 comprises a portion of said powder chamber 110 proximate to said bullet end 106. Said first chamber length 304 can be configured to substantially encompass said initial explosion 406 within said primer pocket 108, and said first thickness 324a can be better suited to absorb pressure from said initial explosion 406 and direct it forward toward said bullet end 106 of said primer pocket 108.
Said forward traveling initial pressure 408 results from said initial explosion 406. Said forward traveling initial pressure 408 travels from said primer end 104 to said bullet end 106. a portion of said forward traveling initial pressure 408 then travels back from said bullet end 106 to said primer end 104 as said backpressure 326. Said plurality of inner chambers 340 can be configured to expand as said forward traveling initial pressure 408 travels from said first chamber 334 to said second chamber 336. Said plurality of inner chambers 340 can be configured to direct said backpressure 326 toward said centerline 410 of said first chamber 334 rather than into its corners at said first chamber radius 312.
relative to the movement of said backpressure 326, said plurality of stages 400 will cause pressure to reduce and be directed toward said centerline 410 of said first chamber 334 rather than into its corners at said first chamber radius 312.
Said powder chamber 110 at said primer end 104 comprises said first chamber radius 312 to avoid sharp edges proximate to said primer end 104. Said first chamber radius 312 can be configured to create a smooth transition between said cartridge chamber inner wall 112 and said primer-end chamber face 328.
Said plurality of inner chambers 340 can be configured for: receiving said initial explosion 406 in said first chamber 334 and travel forward within said plurality of inner chambers 340 in said initial forward blast 404, building pressure within said plurality of inner chambers 340, and shaping said backpressure 326 to move rearward along said cartridge chamber inner wall 112.
Said cartridge chamber inner wall 112 of said multi-stage inner chamber configuration 302 comprises said plurality of stages 400 between said primer end 104 and said bullet end 106. Said plurality of stages 400 comprises said first stage 400a, said second stage 400b, said third stage 400c, and said fourth stage 400d, each among said plurality of stages 400 comprises said one or more relative angles 402 between a horizontal plane and said cartridge chamber inner wall 112 at the respective stage. Said one or more relative angles 402 comprise said first relative angle 402a, said second relative angle 402b, said third relative angle 402c, and said fourth relative angle 402d each of these angles and segments can be configured to related to one another: said first relative angle 402a to said first stage 400a. Said second relative angle 402b to said second stage 400b. Said third relative angle 402c to said third stage 400c. Said fourth relative angle 402d to said fourth stage 400d. Said plurality of stages 400 can be presented in order from said first chamber 334 toward said second chamber 336. with said first stage 400a being proximate to said primer end 104 and said fourth stage 400d proximate to said bullet end 106. Said first stage 400a comprises a 0-degree angle. Said first stage 400a, said second relative angle 402b, said third relative angle 402c can be progressively larger than the proceeding angle. Said fourth relative angle 402d can be approximately 0 degrees again. Said multi-stage inner chamber configuration 302 can be configured to expand more quickly while traveling forward out of said first chamber 334 and then progressively approach a flattened angle as said multi-stage inner chamber configuration 302 approaches said bullet end 106. Said initial explosion 406 can be configured to occur in said first chamber 334 and travel forward within said multi-stage inner chamber configuration 302 in said initial forward blast 404, as pressure builds within said cartridge 300, said backpressure 326 can be configured to move rearward along said cartridge chamber inner wall 112.
Said first chamber 334 comprises said first chamber volume 350. Said first inner diameter 314 of said first chamber 334 can be smaller than said second inner diameter 322 of said second chamber 336, said first chamber volume 350 will consequently be smaller than it would have been should said first inner diameter 314 and said second inner diameter 322 were substantially identical. Said cartridge 300 can be configured to reduce said powder 412 usage proximate to said primer end 104 in said first chamber 334 as compared to the prior art.
Said cartridge 300 for improving explosive dynamics of ammunition. Said cartridge 300 comprises said casing 102 comprising said powder chamber 110. Said powder chamber 110 comprising said powder chamber length 344 among said plurality of inner chambers 340. Said plurality of inner chambers 340 comprise at least said first chamber 334, and said second chamber 336. Said casing 102 comprises said powder chamber casing portion 332 comprising a portion of said casing 102 wrapped around side portions of said powder chamber 110. Said cartridge chamber inner wall 112 comprises an inner portion of said powder chamber casing portion 332. Said powder chamber casing portion 332 comprises said plurality of thicknesses 324 which comprise at least said first thickness 324a and said second thickness 324b. Said first chamber 334 comprises said first chamber length 304, said first inner diameter 118, and said first thickness 324a of said casing 102 around said first chamber 334. Said second chamber 336 comprises said second chamber length 306, said second inner diameter 322, and said second thickness 324b of said casing 102 around said second chamber 336. Said first thickness 324a can be larger than said second thickness 324b. Said first inner diameter 314 of said first chamber 334 can be smaller than said second inner diameter 322 of said second chamber 336. Said powder chamber 110 comprises said primer end 104, and said bullet end 106. Said first chamber 334 comprises a portion of said powder chamber 110 proximate to said primer end 104. Said second chamber 336 comprises a portion of said powder chamber 110 proximate to said bullet end 106. Said first chamber length 304 can be configured to substantially encompass said initial explosion 406 within said primer pocket 108, and said first thickness 324a can be better suited to absorb pressure from said initial explosion 406 and direct it forward toward said bullet end 106 of said primer pocket 108. Said first chamber 334 comprises said first chamber volume 350. Said first inner diameter 314 of said first chamber 334 can be smaller than said second inner diameter 322 of said second chamber 336, said first chamber volume 350 will consequently be smaller than it would have been should said first inner diameter 314 and said second inner diameter 322 were substantially identical. Said cartridge 300 can be configured to reduce said powder 412 usage proximate to said primer end 104 in said first chamber 334 as compared to the prior art.
Various changes in the details of the illustrated operational methods are possible without departing from the scope of the following claims. Some embodiments may combine the activities described herein as being separate steps. Similarly, one or more of the described steps may be omitted, depending upon the specific operational environment the method is being implemented in. It is to be understood that the above description is intended to be illustrative, and not restrictive. For example, the above-described embodiments may be used in combination with each other. Many other embodiments will be apparent to those of skill in the art upon reviewing the above description. The scope of the invention should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. In the appended claims, the terms “including” and “in which” are used as the plain-English equivalents of the respective terms “comprising” and “wherein.”
This application claims benefit to U.S. patent application 62/705,280 filed on Jun. 19, 2020.
| Number | Date | Country | |
|---|---|---|---|
| 62705280 | Jun 2020 | US |
