公开(公告)号：US3826659A

公开(公告)日：1974-07-30

申请号：US25366972

申请日：1972-05-01

Applicant: NAT RES DEV

Inventor： BUSBY T ,  COX G

IPC: C03C10/00 ,  C03C12/00 ,  C04B35/10 ,  C04B35/48 ,  C03C3/22 ,  C03C3/04 ,  C03C3/12

CPC classification number: C04B35/48 ,  C03C10/00 ,  C03C10/0036 ,  C03C10/0054 ,  C03C12/00 ,  C04B35/10

Abstract: A GLASS CERAMIC MATERIAL COMPRISING BY WEIGHT 20% TO 45% ZRO2, 20% TO 60% AL2O3, 0% TO 25% SIO2, 0% TO 30% CAO, 0% TO 10% NA2O, THE MATERIAL INCLUDING B2O3 AND/OR PHO IN THE AMOUNTS UP TO 35% AND 25% RESPECTIVELY, B2O3 IN THE ABSENCE OF PBO BEING IN AN AMOUNT MORE THAN 5%, PBO IN THE ABSENCE OF B2O3 BEING IN AN AMOUNT MORE THAN 2%.

公开(公告)号：US3815157A

公开(公告)日：1974-06-11

申请号：US30878772

申请日：1972-11-22

Applicant: NAT RES DEV

Inventor： SKORECKI J ,  WHEBLE V

IPC: A61F2/00 ,  A61F2/30 ,  A61F2/40 ,  A61F1/24

CPC classification number: A61F2/40 ,  A61F2002/30405 ,  A61F2002/30495 ,  A61F2002/30512 ,  A61F2002/30662 ,  A61F2002/4022 ,  A61F2002/4085 ,  A61F2220/0025

Abstract: An endoprosthetic shoulder joint device has ball and socket components held in captive bearing engagement and demountably connectable with scapular and humeral fixation components. This facilitates use in that the fixation components can be secured first and then subsequently interconnected by a pre-assembled bearing assembly. The bearing assembly of ball and socket components can itself be demountable, and these components can be interchangeably connected with the two fixation components.

Abstract translation: 内侧假体肩关节装置具有保持轴承接合的球窝部件，并可拆卸地与肩胛骨和肱骨固定部件连接。 这有利于使用，因为固定部件可以首先固定，然后由预组装的轴承组件随后互连。 球和轴承部件的轴承组件本身可以是可拆卸的，并且这些部件可以与两个固定部件互换地连接。

公开(公告)号：US3807394A

公开(公告)日：1974-04-30

申请号：US27756972

申请日：1972-08-03

Applicant: NAT RES DEV

Inventor： ATTENBOROUGH C

IPC: A61B17/064 ,  A61B17/68 ,  A61B17/72 ,  A61F5/04

CPC classification number: A61B17/7225 ,  A61B17/0642 ,  A61B17/68 ,  A61B2017/0648

Abstract: Orthopaedic fracture fixation is effected by use of a tube with a spring extending through the tube bore and held under tension by terminal means which secure the device relative to a bone. The device can lie across the surface of a bone to bridge a fracture in the manner of a staple by using terminal members in the form of pins, screws or the like, and the spring tension can then serve to assist reduction of the fracture. Alternatively, the device can pass through the bone with terminal members held against opposite parts of the bone surface. In this case, the device may be one of a set used in threaded or other connection with an additional intramedullary nail or bone plate. Various mechanisms can be used for the terminal connections.

Abstract translation: 矫形骨折固定通过使用具有延伸穿过管孔的弹簧的管来实现，并且通过终端装置保持紧固，所述终端装置相对于骨固定该装置。 通过使用销钉，螺钉等形式的端子构件，该装置可以穿过骨的表面以以钉子的方式桥接断裂，然后弹簧张力可用于辅助减少裂缝。 或者，装置可以穿过骨头，端子构件保持在骨表面的相对部分上。 在这种情况下，该装置可以是与另外的髓内钉或骨板的螺纹或其它连接中使用的组中的一个。 终端连接可以使用各种机制。

公开(公告)号：US3803110A

公开(公告)日：1974-04-09

申请号：US82286769

申请日：1969-05-05

Applicant: NAT RES DEV

Inventor： RICHARDS D ,  WILLIAMS R ,  SCILLY N ,  WILLIAMS F

IPC: C08F2/00 ,  C07C2/74 ,  C08C19/44 ,  C08F2/38 ,  C08F4/00 ,  C08F4/42 ,  C08G18/04 ,  C08G59/40 ,  C08G61/00 ,  C08G85/00 ,  C08F1/68 ,  C08F13/00 ,  C08G20/20

CPC classification number: C08G61/00 ,  C07C2/74 ,  C08C19/44 ,  C08G18/04 ,  C08G59/4007 ,  C07C15/12

Abstract: ALKENES ARE REACTED WITH ELECTRON DONORS IN THE PRESENCE OF COMONOMERS HAVING FUBCTIONAL GROUPS SUCEPTIBLE TO NUCLEOPHILIC ATTACK SUCH AS HALIDE OR EPOXY GROUPS. THE USE OF COMOMOMERS HAVING ONE FUNCTIONAL GROUP PRODUCES COMONOMER-TEMPERATURED ALKENE OILGOMERS WHILST THE USE OF COMONOMERS HAVING AT LEAST TWO FUNCTIONAL GROUPS PRODUCES COPOLYMERS.

公开(公告)号：US3798622A

公开(公告)日：1974-03-19

申请号：US3798622D

申请日：1972-06-28

Applicant: NAT RES DEV

Inventor： O DELL T

IPC: G11C13/06 ,  G11C11/14 ,  G11C11/42

CPC classification number: G11C13/06

Abstract: A memory device consists of a material containing bubble domains, the state of the memory being determined by the polarity of the bubble domains. Use of a transparent material containing bubble domains is described, read-out being obtained from an image of the domains formed in polarised light.

Abstract translation: 存储器件由含有气泡域的材料组成，存储器的状态由气泡域的极性决定。 描述使用含有气泡畴的透明材料，从偏振光中形成的畴的图像获得读出。

公开(公告)号：US3794875A

公开(公告)日：1974-02-26

申请号：US3794875D

申请日：1970-12-18

Applicant: NAT RES DEV

Inventor： STARK D

IPC: H01J41/20 ,  H05H3/06 ,  H01J39/00

CPC classification number: H01J41/20 ,  H05H3/06

Abstract: In a sealed-off neutron generator containing tritium, for the production of neutrons by the D-T reaction, helium-3 gas accumulates owing to radioactive decay of the tritium and interferes with the proper operation of the generator. In the present generator a sputter-ion pump is sealed to the generator to remove the helium-3 from the envelope prior to admitting hydrogen isotope gas from the usual replenisher before use. The pump is adapted to remove only the unwanted helium-3 and not the wanted D and T, by having its sputterable cathodes made of, or coated with, a metal which has a low chemical affinity for hydrogen but is readily sputtered by helium, such as copper.

Abstract translation: 在含有氚的封闭中子发生器中，为了通过D-T反应生产中子，氦-3气体由于氚的放射性衰变而积聚，并干扰发生器的正常操作。 在本发明器中，在使用之前，从通常的补充器接收氢同位素气体之前，将溅射离子泵密封到发生器以从信封中除去氦-3。 泵只适用于除去不需要的氦-3而不是想要的D和T，它的可溅射阴极由氢化合物具有低的化学亲合力但易于被氦溅出的金属制成或涂覆， 作为铜。

公开(公告)号：US3793650A

公开(公告)日：1974-02-26

申请号：US3793650D

申请日：1972-09-22

Applicant: NAT RES DEV

Inventor： LING R ,  LEE A

IPC: A61F2/00 ,  A61F2/30 ,  A61F2/36 ,  A61F2/46 ,  A61F1/00

CPC classification number: A61F2/30724 ,  A61F2/367 ,  A61F2/3676 ,  A61F2002/30153 ,  A61F2002/30571 ,  A61F2002/30617 ,  A61F2002/30714 ,  A61F2002/4631 ,  A61F2230/0019 ,  A61F2250/0089 ,  A61F2250/0097

Abstract: The intramedullary or equivalent stem of a prosthetic bone joint device is uniformly spaced within a bone canal during implantation using gap-filling cement. This achieved by using a spacer device having an annular base with at least three spring members extending from spaced points around the base, the spring members extending in a direction having radially outward and common axial components relative to the base. The base is formed to engage around and partway along the stem with its spring members facing forward. When the stem/spacer combination is implanted the springs act to centralise the position of the stem.

Abstract translation: 假体骨关节装置的髓内或等效茎在植入期间使用间隙填充水泥在骨管内均匀间隔开。 这通过使用具有环形基座的间隔装置来实现，所述间隔装置具有至少三个弹簧构件，所述弹簧构件从围绕基座的间隔开的位置延伸， 底座形成为沿着杆身周围和中途啮合，其弹簧构件朝向前方。 当植入茎/间隔物组合时，弹簧用于集中茎的位置。

公开(公告)号：US3793519A

公开(公告)日：1974-02-19

申请号：US3793519D

申请日：1972-04-13

Applicant: NAT RES DEV

Inventor： MALLARD J ,  GAULT MITCHELL J ,  WILKS R

IPC: G01T1/164 ,  G01N21/16

CPC classification number: G01T1/1645

Abstract: The invention concerns apparatus for use in investigating the distribution of radiation from an extended source of ionising rays and is particularly concerned with gamma cameras for sensing Gamma radiation. In normal Gamma cameras, due to the long exposure time, the sensitivity of the camera is reduced by spurious light emission from the scintillation screen. In the present invention the effect of this spurious emission is reduced by only triggering the image intensifier in response to predetermined values of light emission. This predetermined triggering is achieved by collecting the unwanted light emitted at the edges of the scintillation screen and directing this into one or more photomultipliers, the outputs of which are taken to a pulse height analyser which is used to trigger the image intensifier.

Abstract translation: 本发明涉及用于研究来自扩展的电离射线源的辐射分布的装置，并且特别涉及用于感测伽马辐射的γ照相机。 在正常的伽马相机中，由于长时间的曝光时间，相机的灵敏度因闪烁屏幕的寄生光发射而降低。 在本发明中，仅通过响应于预定的发光值触发图像增强器来减小该杂散发射的影响。 通过收集在闪烁屏幕的边缘处发射的不需要的光并将其引导到一个或多个光电倍增管中来实现该预定的触发，该光电倍增管的输出被送到用于触发图像增强器的脉冲高度分析器。

公开(公告)号：US3783748A

公开(公告)日：1974-01-08

申请号：US3783748D

申请日：1971-09-02

Applicant: NAT RES DEV

Inventor： CUNNINGHAM S

IPC: F01B3/00 ,  F04B1/12 ,  F16J1/10 ,  F16J1/22 ,  F16J1/02

CPC classification number: F16J1/22 ,  F01B3/0085 ,  F04B1/124 ,  F05C2225/04 ,  F16J1/10

Abstract: A piston adapted to carry a cam follower and particularly for use as a ball or roller piston in a hydrostatic pump or motor, comprises a piston body having a seating at one end, an insert of low friction material which is shaped to provide in the seating a bearing for the cam follower, and means for securing the insert to the piston body. The piston body preferably has a recess or aperture communicating with the seating and the insert of low friction material extends into or through the recess or aperture to lock the insert to the piston body. The insert is conveniently made of polytetrafluorethylene, nylon or an acetal material.

Abstract translation: 适于承载凸轮从动件并且特别用作静液压泵或电机中的滚珠或滚子活塞的活塞包括：活塞主体，其一端具有就座;低摩擦材料的插入件，其形状设置在座位 用于凸轮从动件的轴承，以及用于将插入件固定到活塞体上的装置。 活塞体优选地具有与座部连通的凹部或孔，并且低摩擦材料的插入件延伸进入或穿过凹部或孔，以将插入件锁定到活塞体。 该插入件方便地由聚四氟乙烯，尼龙或缩醛材料制成。

公开(公告)号：US3774391A

公开(公告)日：1973-11-27

申请号：US3774391D

申请日：1971-03-31

Applicant: NAT RES DEV

Inventor： PUTTICK J

IPC: B63G8/08 ,  F02B3/06 ,  F02B47/08 ,  F02B47/10 ,  F02D9/00 ,  F02B69/00

CPC classification number: B63G8/08 ,  F02B3/06 ,  F02B47/08 ,  F02B47/10 ,  F02D9/00 ,  F02D2700/09 ,  Y02T10/121

Abstract: A compression-ignition internal combustion engine power plant is provided with means for submerged operating in the recycle mode in which a proportion of the exhaust gas discharged from the engine is mixed with pure oxygen gas and is supplied to the engine intake for aspiration and combustion with liquid hydrocarbon fuel injected into the combustion chamber, as an alternative to operation with normal aspiration of atmospheric air. Five control valves or valve groups are provided for controlling the oxygen gas supply, the atmospheric air intake, the exhaust outlet to atmosphere, the exhaust gas recycle conduit and the supply of compressed air for starting, and a two-stage electropneumatic control system of pneumatic valves is provided for operating the control valves in accordance with the requirements of the different modes of operation of the engine and for changing between modes. The engine is controlled to run in the recycle mode at a constant maximum speed under varying loads by control of the oxygen gas supply in dependence on the governed fuel input, or vice versa. The gas pressure in the engine intake is controlled to a constant absolute value by being sensed by an aneroid capsule which provides a feedback signal for regulating the speed of the exhaust gas compressor of the engine.

Abstract translation: 压缩点火式内燃机动力装置设置有以循环模式进行浸没式运转的装置，其中从发动机排出的一部分排气与纯氧气混合并供给到用于抽吸和燃烧的发动机进气口， 喷射到燃烧室中的液体烃燃料，作为常压空气正常运行的替代方案。 提供五个控制阀或阀组，用于控制氧气供应，大气进气，排气到大气，排气回收管道和供应压缩空气的启动，以及两级气动气动控制系统 提供阀，用于根据发动机的不同操作模式的要求和模式之间的变化来操作控制阀。 发动机通过根据控制的燃料输入控制氧气供应，在变化的负载下以恒定的最大速度控制循环运行，反之亦然。 通过由提供用于调节发动机的排气压缩机的速度的反馈信号的空气囊来检测发动机进气中的气体压力被控制为恒定的绝对值。