序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 Ultrashort-pulse laser machining system employing a parametric amplifier US09918579 2001-07-31 US20020001321A1 2002-01-03 Michael D. Perry
A method and apparatus are provided for increasing the energy of chirped laser pulses to an output in the range 0.001 to over 10 millijoules at a repetition rate 0.010 to 100 kHz by using a two stage optical parametric amplifier utilizing a bulk nonlinear crystal wherein the pump and signal beam size can be independently adjusted in each stage.
2 Method to reduce damage to backing plate US09558144 2000-04-21 US06303901B1 2001-10-16 Michael D. Perry; Paul S. Banks; Brent C. Stuart
The present invention is a method for penetrating a workpiece using an ultra-short pulse laser beam without causing damage to subsequent surfaces facing the laser. Several embodiments are shown which place holes in fuel injectors without damaging the back surface of the sack in which the fuel is ejected. In one embodiment, pulses from an ultra short pulse laser remove about 10 nm to 1000 nm of material per pulse. In one embodiment, a plasma source is attached to the fuel injector and initiated by common methods such as microwave energy. In another embodiment of the invention, the sack void is filled with a solid. In one other embodiment, a high viscosity liquid is placed within the sack. In general, high-viscosity liquids preferably used in this invention should have a high damage threshold and have a diffusing property.
3 TYING MACHINE US13130421 2009-11-25 US20110220253A1 2011-09-15 Bernard Cullen; Kenneth Sorley; James John Pirrett Higgins; Charles Thomas Marshall; David Michael Stalker
There is disclosed a tying machine (100) for forming bundles from a plurality of propellant sticks (4). Such bun-files may be used to form a propellant charge for use in, for example, heavy artillery. The tying machine tends to comprise an aperture (6) and a work surface (8) such that the plurality of sticks may rest on the work surface and occupy a portion of the aperture. Further, a drum (10) holding one end of a length of twine surrounds the aperture and can be rotated to wind the twine around the sticks. The twine can be secured once the sticks are bound.
4 Propellant grain cutting assembly US153337 1993-11-15 US5419501A 1995-05-30 B. W. Kierstead; Jaren E. Weatherston; Donald T. Bassett
A cutting assembly for cutting propellant from a rocket motor. The cutting assembly includes a plurality of first cutting wheels, second cutting wheels and secondary cutters which are mounted to a mounting head. The mounting head is attached to an arm for rotation about an axis of rotation. Means are provided for rotating the mounting head. The cutting wheels are mounted to the mounting head for rotation about an axis of rotation transverse to the axis of rotation of the mounting head. Each cutting wheel includes a plurality of cutting blades extending outwardly from the rim. The cutting blades are each configured with a radially extending cutting edge for cutting in a direction substantially normal to the axis of rotation of the mounting head. The cutting blades are oriented at an approximate 30 degree angle to the axis of rotation of the first cutting wheel, with the angle of orientation of the cutting blades of the second cutting wheels being opposite in direction to the angle of orientation of the cutting blades of the first cutting wheels. The secondary cutters include a substantially circular cutting blade for making cuts in the propellant which are substantially transverse to the cuts made by the first and second cutting wheels.
5 Of propellant grain cutting assembly JP51443995 1994-10-06 JPH09503436A 1997-04-08 ウエザーストン,ジャレン・イー; キーアステッド,ビー・ダブリュー; バセット,ドナルド・ティー
(57)【要約】 ロケット・モータから推進火薬を切除する切断組立体(10)である。 該切断組立体(10)は、第一の切断ホイール(18)と、第二の切断ホイール(20)と、取り付けヘッド(14)に取り付けられた第二のカッター(22)とを備えている。 該切断ホイールは、取り付けヘッドの回転軸線に交差する軸線を中心として回転可能に取り付けられる。 切断ホイールの各々は、縁部(24)から外方に伸長する切断ブレードを備えている。 該切断ブレードの各々は、取り付けヘッドの回転軸線に対し直の方向に切断する切刃を備えている。 該第二の切断ホイール20の切断ブレードの方向角度は、第一の切断ホイール(18)の切断ブレードの方向角度と反対方向である。 第二のカッター(22)は、第一及び第二の切断ホイール(18、20)により形成される切断箇所に交差する切断箇所を形成する円形の切断ブレードを備えている。
6 Ultrashort pulse laser machining of metals and alloys JP55667499 1998-05-19 JP2002511801A 2002-04-16 スチュアート,ブレント,シー.; ペリー,マイケル,ディー.
(57)【要約】 本発明は、金属及び合金の高精度機械加工(切削、ドリル加工、彫刻)の方法からなる。 10フェムト秒から100ピコ秒の範囲内の幅のパルスを使用することにより、本質的に熱又は衝撃により影響を受ける領域なしに非常に高精度の機械加工が達成できる。 パルスが非常に短いので、除去される領域を超える熱伝達は無視することができ、レーザ機械工面から約0.1〜1ミクロンを超える(特定の材料に依存する)材料への熱応及び衝撃は無視できる。 短いパルス幅のため、相互作用に関連する高い強度(10 12 W/cm 2より大)が材料を直接的に固体状態からイオン化プラズマ状態へ変化させる。 プラズマの流体力学的拡張は、材料を除去するための補助的手法を省き、非常に高品質の機械加工面を作り、切溝の内部及びその表面上の再堆積は無視できる。 除去される材料の深さを超える加熱は無視できるので、レーザ機械加工プロセスによって残りの材料の組成が影響を受けることはない。 これは、結晶粒組織の変化無しに金属及び純粋金属さえも高精度に機械加工することを可能とする。
7 Ultrashort-pulse laser machining system employing a parametric amplifier US09918579 2001-07-31 US06728273B2 2004-04-27 Michael D. Perry
A method and apparatus are provided for increasing the energy of chirped laser pulses to an output in the range 0.001 to over 10 millijoules at a repetition rate 0.010 to 100 kHz by using a two stage optical parametric amplifier utilizing a bulk nonlinear crystal wherein the pump and signal beam size can be independently adjusted in each stage.
8 Laser machining of explosives US62078 1998-04-17 US6150630A 2000-11-21 Michael D. Perry; Brent C. Stuart; Paul S. Banks; Booth R. Myers; Joseph A. Sefcik
The invention consists of a method for machining (cutting, drilling, sculpting) of explosives (e.g., TNT, TATB, PETN, RDX, etc.). By using pulses of a duration in the range of 5 femtoseconds to 50 picoseconds, extremely precise and rapid machining can be achieved with essentially no heat or shock affected zone. In this method, material is removed by a nonthermal mechanism. A combination of multiphoton and collisional ionization creates a critical density plasma in a time scale much shorter than electron kinetic energy is transferred to the lattice. The resulting plasma is far from thermal equilibrium. The material is in essence converted from its initial solid-state directly into a fully ionized plasma on a time scale too short for thermal equilibrium to be established with the lattice. As a result, there is negligible heat conduction beyond the region removed resulting in negligible thermal stress or shock to the material beyond a few microns from the laser machined surface. Hydrodynamic expansion of the plasma eliminates the need for any ancillary techniques to remove material and produces extremely high quality machined surfaces. There is no detonation or deflagration of the explosive in the process and the material which is removed is rendered inert.
9 Process and device for chopping a body of solid explosives, especially composite rocket fuels US836432 1997-05-09 US5941466A 1999-08-24 Helmut Alba; Juergen Wilhelm
A method for chopping a body consisting of explosives is described, by which a high-pressure water jet emerging from a nozzle is directed against the body of solid explosive and in which the nozzle and the body carry out a movement relative to each other during the chopping. Preferred fields of use are composite rocket fuels. There is also described a device for carrying out the process, in which the body of composite rocket fuel to be decomposed or divided into portions is secured on a chopping bench, and a nozzle fastened to a nozzle holder for the high-pressure water jet as well as at least one means for producing a relative movement serving as chopping advance movement between the nozzle and the body of composite rocket fuel are provided.
10 Method for producing explosive trains US703992 1976-07-09 US4050347A 1977-09-27 Stanley M. Adelman; Donal G. Ellington; Philip J. Quatrochi
A method for mass producing and loading explosive charges in detonators, ds, relays, primers, etc., utilizing the explosive charges each in sheet form. Sheets corresponding to the various increments, each containing the finely divided high explosive and binder therefor, are superposed in the proper order preferably on a sheet of closing disc material, and the resulting structure of layered sheets is cored to produce the explosive train. The coring can be accomplished with a battery of cutters so that large numbers of explosive trains can be cut to size simultaneously. The explosive train cores thus obtained can be pushed out of the cutters into cups, which are then crimped and sealed.
11 TYING MACHINE EP09760289.0 2009-11-25 EP2358596B1 2013-03-20 CULLEN, Bernard; SORLEY, Kenneth; HIGGINS, James, John, Pirrett; MARSHALL, Charles, Thomas; STALKER, David, Michael
12 Vorrichtung und Verfahren zum Portionieren einer Treibladung EP12167304.0 2012-05-09 EP2522949A2 2012-11-14 Küllmer, Mathias

Die Erfindung betrifft eine Vorrichtung zum Portionieren einer Treibladung aus zusammensteckbaren Treibladungsmodulen (2) mit zwei Halteelementen (3, 4) zur Aufnahme jeweils mindestens eines Treibladungsmoduls (2), die zum Portionieren der Treibladung manuell gegeneinander bewegbar sind. Einen weiteren Gegenstand der Erfindung bildet ein Verfahren zum Portionieren von Treibladungen, bei welchem die Treibladungsmodule (2) über eine solche Vorrichtung (1) gegeneinander bewegt werden.

13 PROPELLANT GRAIN CUTTING ASSEMBLY EP94930632.0 1994-10-06 EP0724485A1 1996-08-07 KIERSTEAD, B., W.; WEATHERSTON, Jaren, E.; BASSETT, Donald, T.
A cutting assembly (10) for cutting propellant from a rocket motor. The cutting assembly (10) includes first and second cutting wheels (18, 20) and secondary cutters (22) mounted to a mounting head (14). The cutting wheels are mounted for rotation about an axis transverse to the axis of rotation of the mounting head. Each cutting wheel includes cutting blades extending outwardly from a rim (24). The cutting blades each have a cutting edge for cutting in a direction normal to the axis of rotation of the mounting head. The angle of orientation of the cutting blades of the second cutting wheels (20) is opposite in direction to the angle of orientation of the cutting blades of the first cutting wheels (18). The secondary cutters (22) include a circular cutting blade for making cuts transverse to the cuts made by the first and second cutting wheels (18, 20).
14 ULTRASHORT PULSE LASER MACHINING OF METALS AND ALLOYS EP98922448.0 1998-05-19 EP1011911A1 2000-06-28 PERRY, Michael, D.; STUART, Brent, C.
The invention consists of a method for high precision machining (cutting, drilling, sculpting) of metals and alloys. By using pulses of a duration in the range of 10 femto seconds to 100 picoseconds, extremely precise machining can be achieved with essentially no heat or shock affected zone. Because the pulses are so short, there is negligible thermal conduction beyond the region removed resulting in negligible thermal stress or shock to the material beyond approximately 0.1-1 micron (dependent upon the particular material) from the laser machined surface. Due to the short duration, the high intensity (⊃1012W/cm2) associated with the interaction converts the material directly from the solid-state into an ionized plasma. Hydrodynamic expansion of the plasma eliminates the need for any ancillary techniques to remove material and produces extremely high quality machined surfaces with negligible redeposition either within the kerf or on the surface. Since there is negligible heating beyond the depth of material removed, the composition of the remaining material is unaffected by the laser machining process. This enables high precision machining of alloys and even pure metals with no change in gain structure.
15 VERFAHREN UND VORRICHTUNG ZUM ZERSCHNEIDEN EINES KÖRPERS AUS FESTEN EXPLOSIVSTOFFEN, INSBESONDERE COMPOSITE-RAKETENTREIBSTOFFEN EP95935948.0 1995-10-19 EP0794848B1 1999-08-04 ALBA, Helmut; WILHELM, Jürgen
The description relates to a process for chopping a body (1) of solid explosives with which a high-pressure jet of water (2) from a nozzle (7) is directed at the body of solid explosives and the nozzle (7) and the body (1) are moved in relation to each other during chopping. The preferred field of application comprises composite rocket fuels. In addition, a device for implementing the process is described in which the body (1) of composite rocket fuel to be decomposed or divided into portions is secured to a cutting bench (5) and a nozzle (7) secured to a nozzle holder (6) for the high-pressure water jet and there is at least one device for generating a relative movement between the nozzle (7) and the body (1) of composite rocket fuel acting as the chopping advance movement.
16 VERFAHREN UND VORRICHTUNG ZUM ZERSCHNEIDEN EINES KÖRPERS AUS FESTEN EXPLOSIVSTOFFEN, INSBESONDERE COMPOSITE-RAKETENTREIBSTOFFEN EP95935948.0 1995-10-19 EP0794848A1 1997-09-17 ALBA, Helmut; WILHELM, Jürgen
The description relates to a process for chopping a body (1) of solid explosives with which a high-pressure jet of water (2) from a nozzle (7) is directed at the body of solid explosives and the nozzle (7) and the body (1) are moved in relation to each other during chopping. The preferred field of application comprises composite rocket fuels. In addition, a device for implementing the process is described in which the body (1) of composite rocket fuel to be decomposed or divided into portions is secured to a cutting bench (5) and a nozzle (7) secured to a nozzle holder (6) for the high-pressure water jet and there is at least one device for generating a relative movement between the nozzle (7) and the body (1) of composite rocket fuel acting as the chopping advance movement.
17 Vorrichtung und Verfahren zum Portionieren einer Treibladung EP12167304.0 2012-05-09 EP2522949B1 2016-11-30 Küllmer, Mathias
18 Vorrichtung und Verfahren zum Portionieren einer Treibladung EP12167304.0 2012-05-09 EP2522949A3 2014-12-17 Küllmer, Mathias

Die Erfindung betrifft eine Vorrichtung zum Portionieren einer Treibladung aus zusammensteckbaren Treibladungsmodulen (2) mit zwei Halteelementen (3, 4) zur Aufnahme jeweils mindestens eines Treibladungsmoduls (2), die zum Portionieren der Treibladung manuell gegeneinander bewegbar sind. Einen weiteren Gegenstand der Erfindung bildet ein Verfahren zum Portionieren von Treibladungen, bei welchem die Treibladungsmodule (2) über eine solche Vorrichtung (1) gegeneinander bewegt werden.

19 TYING MACHINE EP09760289.0 2009-11-25 EP2358596A2 2011-08-24 CULLEN, Bernard; SORLEY, Kenneth; HIGGINS, James, John, Pirrett; MARSHALL, Charles, Thomas; STALKER, David, Michael
There is disclosed a tying machine (100) for forming bundles from a plurality of propellant sticks (4). Such bundles may be used to form a propellant charge for use in, for example, heavy artillery. The tying machine tends to comprise an aperture (6) and a work surface (8) such that the plurality of sticks may rest on the work surface and occupy a portion of the aperture. Further, a drum (10) holding one end of a length of twine surrounds the aperture and can be rotated to wind the twine around the sticks. The twine can be secured once the sticks are bound.
20 CS 가스탄 발사셋의 안전 폐기처리방법 KR1020100035800 2010-04-19 KR1020110116408A 2011-10-26 이종철; 서기천
본 발명은 CS 가스탄 발사셋의 안전 폐기방법에 관한 것으로, 생산 후 장기저장과 노후에 따라 폐기용으로 분류된 각종 CS 탄약류 중 가장 처리 곤란한 다연발 CS 가스탄을 포함하는 35mm CS 가스탄 발사셋을 환경 친화적으로 안전하게 폐기처리하는 것을 목적으로 한다.
이를 위해, 본 발명은 발사통 상단을 분해하여 발사통 우측에 부착되어 있는 타격 점화장치의 안전상태를 확인하는 제1 단계, 상기 타격 점화장치로부터 발사통 내부의 모든 16개 발사관에 연결되어 있는 도화선 결합체를 안전하게 제거하여 회수하는 제2 단계, 상기 발사통 내부의 발사관에 들어있는 64개의 모든 자탄을 안전하게 회수하는 제3 단계, 상기 발사통 우측의 타격 점화장치를 격발하여 점화장치와 발사통 내부에 남아있는 회수되지 않은 도화선을 자동 연소하여 발사통을 무력화시키는 제4 단계, 회수한 모든 도화선 및 자탄을 소각하는 제5 단계를 포함하는 것을 특징으로 한다.
QQ群二维码
意见反馈