公开(公告)号：US3733969A

公开(公告)日：1973-05-22

申请号：US3733969D

申请日：1971-03-15

Applicant: MC DONNELL DOUGLAS CORP

Inventor： ANDREWS R

IPC: F15B20/00 ,  F16K17/22 ,  F15B13/042

CPC classification number: F16K17/22 ,  F15B20/005

Abstract: A hydraulic system has a high pressure supply line, a low pressure return line maintained at a pressure above the ambient pressure, and a plurality of subsystems connected between the supply and return lines. At least some of the subsystems individually include a selector valve and a hydraulically operated device. The selector valve is connected to the high pressure supply line and also to the return line, the latter connection being through a discharge line. The selector valve is also connected to the hydraulically operated device for diverting high pressure fluid thereto. A check valve is interposed in the discharge line for permitting fluid to flow from the discharge line to the return line, but not in the reverse direction, and consequently before fluid will flow past the check valve into the return line the pressure within the discharge line must equal that in the return line. Each subsystem of the foregoing nature further includes a shutoff valve which senses the return pressure in the discharge line and prevents high pressure fluid from being diverted to the hydraulically operated device when the pressure in the discharge line falls off. Accordingly, should the discharge line or any line in common with it rupture, the shutoff valve will close and the subsystem will be rendered inactive, thus preventing the loss of hydraulic fluid through the rupture when an attempt is made to operate selector valve of the ruptured subsystem. A substantial loss of hydraulic fluid through the rupture would of course result in the failure of the entire hydraulic system.

公开(公告)号：US3730898A

公开(公告)日：1973-05-01

申请号：US3730898D

申请日：1971-06-21

Applicant: MC DONNELL DOUGLAS CORP

Inventor： MCCORD R ,  NAIL D ,  SHERATTE M

IPC: C07F9/40 ,  C09K3/00 ,  C10M169/00

CPC classification number: C10M3/00 ,  C10M2207/281 ,  C10M2207/282 ,  C10M2207/283 ,  C10M2207/284 ,  C10M2207/285 ,  C10M2207/286 ,  C10M2207/34 ,  C10M2219/10 ,  C10M2219/102 ,  C10M2219/104 ,  C10M2219/106 ,  C10M2223/02 ,  C10M2223/04 ,  C10M2223/041 ,  C10M2223/042 ,  C10M2223/049 ,  C10M2223/065 ,  C10N2230/08 ,  C10N2240/00 ,  C10N2240/06 ,  C10N2240/12 ,  C10N2240/121 ,  C10N2240/22 ,  C10N2240/30 ,  C10N2240/50 ,  C10N2240/52 ,  C10N2240/54 ,  C10N2240/56 ,  C10N2240/58 ,  C10N2240/60 ,  C10N2240/66

Abstract: PRODUCTION OF FUNCTIONAL FLUIDS, PARTICULARLY AIRCRAFT HYDRAULIC FLUIDS, OF IMPROVED FIRE RESISTANCE, COMPRISING A FUNCTIONAL FLUID BASE STOCK, SUCH AS A PHOSPHATE ESTER, E.G., TRI-N-BUTYL PHOSPHATE, OR MIXTURES OF SUCH BASE STOCKS, AND A SMALL AMOUNT OF A SELENOPHENE OR TELLUROPHHENE COMPOUND, PREFERABLY A CHLORINATED SELENOPHENE OR A CHLORINATED TELLUROPHENE, E.G., TETRACHLOROSELENOPHENE OR TETRACHLOROTELLUROPHENE.

公开(公告)号：US3723319A

公开(公告)日：1973-03-27

申请号：US3723319D

申请日：1971-05-03

Applicant: MC DONNELL DOUGLAS CORP

Inventor： MC CORD R ,  NAIL D ,  SHERATTE M

IPC: C09K5/08 ,  C10M169/00 ,  C09K3/00 ,  C10M3/40

CPC classification number: C09K5/08 ,  C10M3/00 ,  C10M2207/281 ,  C10M2207/282 ,  C10M2207/283 ,  C10M2207/284 ,  C10M2207/285 ,  C10M2207/286 ,  C10M2207/34 ,  C10M2209/084 ,  C10M2223/04 ,  C10M2223/041 ,  C10M2223/042 ,  C10M2223/06 ,  C10M2223/061 ,  C10M2223/065 ,  C10N2240/06 ,  C10N2240/201 ,  C10N2240/202

Abstract: PRODUCTION OF FUNCTIONAL FLUIDS, PARTICULARLY AIRCRAFT HYDRAULIC FLUIDS, OF IMPROVED FIRE RESISTANCE, COMPRISING A FUNCTIONAL FLUID BASE STOCK, SUCH AS A PHOSPHATE ESTER, E.G., TRI-N-BUTYL PHOSPHATE, OR MIXTURES OF SUCH BASE STOCKS, AND A SMALL AMOUNT OF A TRIALKYL OR A TRIALKOXY PHOSPHORUS SELENIDE COMPOUND, E.G., TRIETHYL PHOSPHORUS SELENIDE OR TRIETHOXY PHOSPHORUS SELENIDE.

公开(公告)号：US3701704A

公开(公告)日：1972-10-31

申请号：US3701704D

申请日：1970-05-18

Applicant: MC DONNELL DOUGLAS CORP

Inventor： DERVY ARAM J

IPC: F02K9/97 ,  B32B31/18 ,  B32B31/20 ,  F02K1/24

CPC classification number: F02K9/974 ,  Y10S60/909 ,  Y10T156/1089

Abstract: ROCKET NOZZLE LINER IS FORMED FROM SUBSTANTIALLY IDENTICAL LONGITUDINAL SEGMENTS WHICH HAVE BEEN CIRCUMFERENTIALLY FUSED TOGETHER INTO AN INTEGRAL UNIT. RECTANGULAR FLAKES ARE PREFERABLY CUT FROM CLOTH MATERIAL HAVING GOOD INSULATIVE AND ABLATIVE PROPERTIES TO PROVIDE FLAKES OF THE SAME WIDTH BUT OF DIFFERENT LENGTHS, THE LENGTH OF A FLAKE BEING A FUNCTION OF THE NOZZLE LINER THICKNESS AT THE LONGITUDINAL POINT WHERE SUCHH FLAKE IS TH BE USED. THE FLAKES ARE PREFERABLY CUT SO THAT THE DOMINANT WARP FILAMENTS OF EACH FLAKE ARE GENERALLY PARALLEL TO ITS LENGTH, AND EACH LINER SEGMENT IS MOLDED FROM SUITABLY ARRANGED FLAKES TO PROVIDE A SEGMENT HAVING PREDETERMINED WARP FILAMENTS ORIENTATIONS THEREIN.

公开(公告)号：US3699798A

公开(公告)日：1972-10-24

申请号：US3699798D

申请日：1970-12-24

Applicant: MC DONNELL DOUGLAS CORP

Inventor： ANDERSON RAYMOND H JR ,  WHITESON BENNETT V

IPC: C22F3/00 ,  C21D7/00 ,  B21D26/08

CPC classification number: C22F3/00

Abstract: Reorienting by planar compression loading the atomic planes of deformation in a hexagonal close-packed unit cell of a metal crystal, and in particular beryllium, to improve ductility in a bending mode. In particular ductility in the third dimension (short transverse direction) is accomplished by reorientation of existing slip systems by activating twin systems through planar compression loads. Highly textured sheet material, usually crossrolled from hot pressed block, is of particular interest.

Abstract translation: 通过平面压缩来调整金属晶体的六方密堆积单元中的变形的原子平面，特别是铍，以改善弯曲模式下的延展性。 特别是在第三维度（短横向）中的延展性是通过通过平面压缩载荷激活双系统来重新定向现有的滑动系统来实现的。 通常由热压块交叉轧制的高质感片材特别令人感兴趣。

公开(公告)号：US3699682A

公开(公告)日：1972-10-24

申请号：US3699682D

申请日：1971-01-04

Applicant: MC DONNELL DOUGLAS CORP

Inventor： KLECKNER HAROLD F

IPC: F02K1/64 ,  F02K3/02

CPC classification number: F02K1/64

Abstract: A turbofan engine thrust reverser comprising a plurality of pivotally mounted duct members forming an integral part of the engine cowl. These members redirect the exhaust air of the fan forward and outward at such velocity and angle that the suction of the engine inlet is insufficient to cause reingestion.

Abstract translation: 涡轮风扇发动机推力反向器，包括形成发动机罩的整体部分的多个枢转安装的管道构件。 这些构件以这样的速度和角度使风扇的排气向前和向外重定向，使得发动机入口的吸力不足以引起再吸入。

公开(公告)号：US3698742A

公开(公告)日：1972-10-17

申请号：US3698742D

申请日：1970-11-23

Applicant: MC DONNELL DOUGLAS CORP

Inventor： JONES HARVEY W ,  RYER DUDLEY A JR

IPC: F16L29/00 ,  F16L37/088 ,  F16L37/28

CPC classification number: F16L37/088 ,  F16L29/00

Abstract: A connector assembly for allowing quick disconnecting of lines in fluid or pneumatic systems. The assembly requires the use of a special disconnect key to manually disconnect the connector portions thereof and the assembly includes means to retain the key in one portion of the connector assembly until the connector portions are reconnected, at which time the key may be removed therefrom. The key optionally includes a conspicuous warning flag so that upon inspection, it is obvious when the connector assembly is in a disconnected condition.

公开(公告)号：US3677488A

公开(公告)日：1972-07-18

申请号：US3677488D

申请日：1971-02-16

Applicant: MC DONNELL DOUGLAS CORP

Inventor： BOEHRINGER WILFRED E

IPC: B64C25/60 ,  B64C25/34

CPC classification number: B64C25/60

Abstract: A centering and damping cylinder which includes a primary piston for damping and a secondary piston for trim, each piston being of the differential area type and slidable within an internally stepped cylinder housing. In addition to a damping orifice in the primary piston, an internal relief valve may be provided within the cylinder for relieving pressure when the damping orifice cannot handle the required damping flow rate.

Abstract translation: 一种定心和阻尼缸，其包括用于阻尼的主活塞和用于修整的次级活塞，每个活塞具有差速区域类型并且可在内部阶梯式气缸壳体内滑动。 除了主活塞中的阻尼孔之外，当阻尼孔不能处理所需的阻尼流速时，可以在气缸内设置内部溢流阀，以缓解压力。

公开(公告)号：US3672050A

公开(公告)日：1972-06-27

申请号：US3672050D

申请日：1970-08-05

Applicant: MC DONNELL DOUGLAS CORP

Inventor： HANBACK FRANCIS J

IPC: B23D21/08

CPC classification number: B23D21/08

Abstract: A tube cutting tool for the repair of permanently installed piping systems wherein a section of faulty tubing may be removed and a splicing sleeve fitted thereover for permanent repair in the piping system. The tool may be used in confined quarters since it does not rotate around the tubing. The cut is free of chips, burrs, or other minute particles that require purging of the line before use.

Abstract translation: 一种用于修复永久安装的管道系统的管切割工具，其中可以去除一部分有缺陷的管道，并且在其上安装用于管道系统中的永久维修的拼接套筒。 该工具可以在密闭区域使用，因为它不会围绕管道旋转。 切割没有芯片，毛刺或其他需要在使用前清洗生产线的微小颗粒。

公开(公告)号：US3670545A

公开(公告)日：1972-06-20

申请号：US3670545D

申请日：1970-10-29

Applicant: MC DONNELL DOUGLAS CORP

Inventor： KENT RONALD E ,  ROTHENBERGER ALVIN C

IPC: B21C37/29 ,  B21D22/10 ,  B21D9/05

CPC classification number: B21C37/294 ,  B21D22/105 ,  Y10T29/49442

Abstract: Power cylinders at each end of a tubular workpiece having a force transmitting medium therein operable by the cylinders to force the workpiece into mold cavities. The force transmitting medium is an incompressible plastic such as a polyurethane plug with a memory which returns to its original configuration when the pressure is removed. The retention force between the opposing cylinders is transmitted through the mold die.

Abstract translation: 在管状工件的每一端处的动力缸具有力传递介质，其中可由气缸操作以迫使工件进入模腔。 力传递介质是不可压缩的塑料，例如具有存储器的聚氨酯塞子，​​当压力被去除时，其返回到其初始构造。 相对的气缸之间的保持力通过模具模具传递。