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公开(公告)号：US3859106A
公开(公告)日：1975-01-07
申请号：US27542072
申请日：1972-07-26
Applicant: NAT RES DEV
Inventor： MAJUMDAR AMALENDU JYOTI
CPC classification number: C04B14/42 , C03C13/002
Abstract: An autoclaved calcium silicate product comprises reinforcing fibres of an alkali-resistant glass containing zirconia.
Abstract translation: 高压灭菌的硅酸钙产品包括含氧化锆的耐碱玻璃的增强纤维。
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公开(公告)号：US3840014A
公开(公告)日：1974-10-08
申请号：US29115972
申请日：1972-09-22
Applicant: NAT RES DEV
CPC classification number: A61B17/8866 , A61B17/025 , A61B17/2833
Abstract: Surgical apparatus for separating the femur from the acetabulum, such as in total hip joint replacement by the Southern Approach, takes the form of an inverse pair of tongs which open when the handles are closed. More particularly, the free ends of the tongs respectively carry a pin and a hook which extend in a generally orthogonal direction relative to their respective tong arms and the plane of movement therebetween, while the bight of the hook extends away from its arm.
Abstract translation: 用于将股骨与髋臼分离的手术装置，例如通过Southern Approach进行的全髋关节置换时，采用逆向对的钳子的形式，当手柄关闭时打开。 更具体地，钳子的自由端分别具有销和钩，钩和钩相对于它们各自的钳臂和它们之间的运动平面在大致正交的方向上延伸，而钩的弯曲远离其臂。
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公开(公告)号：US3817634A
公开(公告)日：1974-06-18
申请号：US23040672
申请日：1972-02-29
Applicant: NAT RES DEV
Inventor： BARRON L , BUCKINGHAM A
CPC classification number: G01N21/21 , G01J4/04 , G01N21/65 , G01N2021/4792
Abstract: In testing a sample of an optically active substance, the sample is irradiated with polarized electromagnetic radiation and the intensity of radiation scattered from the sample in a given direction is detected. The state of polarization of the incident radiation from which the detected radiation is derived is modulated, preferably by alternating it between right and left circular polarization, to cause a periodic variation of the detected intensity, and a signal related to this variation is derived.
Abstract translation: 在测试光学活性物质的样品时，用极化电磁辐射照射样品，并且检测从给定方向上从样品散射的辐射强度。 检测出的辐射源的入射辐射的偏振状态优选地通过在右和左圆极化之间进行交替调制，以引起检测强度的周期性变化，导出与该变化有关的信号。
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公开(公告)号：US3816855A
公开(公告)日：1974-06-18
申请号：US25791072
申请日：1972-05-30
Applicant: NAT RES DEV
Inventor： SALEH B
CPC classification number: A61F2/38 , Y10S264/30
Abstract: A prosthetic knee joint device comprises a femoral component in the form of a shell member having two condylar portions with major convex bearing surfaces areas, which portions are bridged at one end by a portion defining a trough between the convex areas. An associated tibial component has similar portions in a platform bearing member defining major concave bearing surface areas and a ridge therebetween. The convex bearing areas are longer than the concave bearing areas and generally U-shaped longitudinally to simulate the corresponding shaping in the natural joint from which the shell member can in fact be derived. The concave bearing areas however simulate the menisci of the natural joint different phases of rotation to provide an optimized congruity between the bearing surfaces during rotation of the predetermined geometry of the prosthesis as compared to the variable geometry in the natural joint.
Abstract translation: 假体膝关节装置包括具有两个具有主凸起轴承表面区域的两个髁部分的外壳构件形式的股骨部件，该部分在一端由在凸区域之间限定槽的部分桥接。 相关联的胫骨部件在平台支承构件中具有相似的部分，其限定主凹入支承表面区域和其间的脊。 凸起的承载区域比凹入的承载区域长，并且大致为U形的纵向以模拟天然接头中相应的成形，壳体构件实际上可由该凹槽导出。 然而，凹形轴承区域模拟天然接头不同旋转相位的弯矩，从而在假体的预定几何形状的旋转期间在天然接头中的可变几何形状之间在轴承表面之间提供优化的一致性。
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公开(公告)号：US3812743A
公开(公告)日：1974-05-28
申请号：US32615073
申请日：1973-01-23
Applicant: NAT RES DEV
CPC classification number: A61B17/3217 , Y10T29/537 , Y10T29/539
Abstract: A tool for separating detachable blades from surgical scalpels takes the form of a pair of pliers having a respective channel formation in each jaw, the side walls of which formations approach engagement in mutually facing and aligned disposition during closure of the tool to define a passageway therethrough. This passageway receives the stem portion of a holder on which a conventional detachable scalpel blade is clipped, and the side walls of one of the channel formations are relieved towards one end thereof, and the side walls of the other formation elevated towards the corresponding end thereof, so that closure of the tool jaws grips the blade while lifting one end of the blade from the holder. The blade can then be slid off the holder while still held by the tool.
Abstract translation: 用于从手术手术刀分离可拆卸刀片的工具采取在每个钳口中具有相应通道形成的一对钳子的形式，其中，在工具闭合期间，它们的侧壁在工具关闭期间接合相互面对并且对准的配置，以限定穿过其中的通道 。 该通道容纳固定器的杆部，其上固定有常规的可拆卸手术刀刀片，并且其中一个通道结构的侧壁朝向其一端释放，并且另一组织的侧壁朝向其相应的端部 ，使得工具夹的闭合将刀片的一端从保持器提起，从而夹持刀片。 然后，刀片可以在仍然被工具握住的同时从支架滑出。
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Patent Agency Ranking
公开(公告)号：US3810113A
公开(公告)日：1974-05-07
申请号：US28127372
申请日：1972-08-17
Applicant: NAT RES DEV
Inventor： JORDAN J
CPC classification number: G06F17/15
Abstract: A computing apparatus comprises a set of counters corresponding to different stages of a shift register having a serial input. A binary signal is applied to this input, and the inputs of the counters are gated so that each counts only when the state of the corresponding stage satisfies a particular condition, for example coincidence with the current state of another binary signal. Once the count for any counter has reached a given value a signal is generated indicating for which of the counters this has occurred. A principal use is for identifying the time delay between two related noise signals.
Abstract translation: 计算装置包括与具有串行输入的移位寄存器的不同级相对应的一组计数器。 二进制信号被施加到该输入，并且计数器的输入被选通，使得每个计数器只有当相应级的状态满足特定条件时才计数，例如与另一个二进制信号的当前状态一致。 一旦任何计数器的计数达到给定值，就产生一个信号，指示哪个计数器已经发生。 主要用途是识别两个相关噪声信号之间的时间延迟。
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27.发明授权
公开(公告)号：US3810000A
公开(公告)日：1974-05-07
申请号：US22688572
申请日：1972-02-16
Applicant: NAT RES DEV
Inventor： ASPINALL A , SPRUCE D , LYNAM J
IPC: G01V3/04
CPC classification number: G01V3/04
Abstract: This invention concerns a meter for measuring polarisation induced in the earth and in particular for measuring transient voltages that follow the termination of direct current flow through the ground. In this device automatic normalisation of the data is achieved by correllating the voltage source producing the transient voltages with the potential measured across measurement electrodes in such a manner that the voltage source and measurement circuits are not otherwise electrically linked.
Abstract translation: 本发明涉及一种用于测量在地球中感应的极化的仪表，特别是用于测量直流电流流过地面的瞬态电压。 在该装置中，数据的自动归一化是通过校正产生瞬态电压的电压源与测量电极之间测量的电位，使得电压源和测量电路不以其它方式电连接。
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公开(公告)号：US3797527A
公开(公告)日：1974-03-19
申请号：US3797527D
申请日：1972-02-07
Applicant: NAT RES DEV
Inventor： BAIN D
CPC classification number: B63H25/46 , Y10T137/2218 , Y10T137/2224
Abstract: A digital rapid response lateral thrust unit in which the deliberately unstable nature of the design is overcome by bleeding off relatively large proportions of the incoming liquid flow for reintroduction as control jets. These jets are effective to divert the liquid flow to one or other of two tapering outlet ducts, the split flow zero thrust condition being achieved by cutting off the supply of control fluid and connecting together the discharge slots for the control jets. Use of the unit as a simple flow diverter in a liquid transfer assembly is also described.
Abstract translation: 一种数字快速反应横向推力单元，其中设计的故意不稳定的性质通过将相当大比例的进入液体流引流作为控制喷射而被重新引入来克服。 这些喷射器有效地将液体流转移到两个锥形出口管道中的一个或另一个，通过切断控制流体的供应并将控制喷嘴的排放槽连接在一起来实现分流流量零推力条件。 还描述了在液体转移组件中使用该单元作为简单的流动分流器。
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公开(公告)号：US3794870A
公开(公告)日：1974-02-26
申请号：US3794870D
申请日：1972-07-17
Applicant: NAT RES DEV
Inventor： BROADWAY A , FONG W , RAWCLIFFE G
CPC classification number: H02K3/28
Abstract: A three-phase, alternating current, speed-changing electric motor, or generator, suitable for six-terminal, series/parallel switching and with pole-changing effected by pole-amplitide modulation, having a composite three-phase stator winding comprising two component windings with corresponding phasewinding parts connected in the same phase of the composite winding and spaced apart from each other around the winding periphery. Most commonly the spacing is uniform.
Abstract translation: 适用于六端子，串联/并联开关和由极点放大器调制实现的极点变化的三相，交流，变速电动机或发电机，具有复合三相定子绕组，其包括两个部件 绕组，其中相应的相绕组部分连接在复合绕组的相同相中并且围绕绕组周边彼此间隔开。 最通常的间距是均匀的。
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公开(公告)号：US3773899A
公开(公告)日：1973-11-20
申请号：US3773899D
申请日：1971-06-14
Applicant: NAT RES DEV
Inventor： LEWIS T
CPC classification number: C30B11/12 , C30B25/005 , C30B29/36
Abstract: A PROCESS FOR THE PRODUCTION OF SILICON CARBIDE WHISKERS COMPRISING MAINTAINING A SILICON-CONTAINING VAPOUR AND A CARBON-CONTAINING VAPOUR AT A TEMPERATURE OF AT LEAST 1,100*C. IN A REACTION ZONE IN THE PRESENCE OF A SUBSTRATE WHEREBY SILICON CARBIDE WHISKERS ARE DEPOSITED UPON THE SUBSTRATE, AND IS CHARACTERISED BY PROVIDING A SUPER-SATURATED CONCENTRATION OF AN IRON-CONTAINING VAPOUR IN THE REACTION ZONE SO THAT WHISKER GROWTH MAY CONTINUE EVEN WHEN THE SUBSTRATE IS SUBSTANTIALLY ENTIRELY COATED WITH WHISKERS GIVING CONSEQUENT INCREASE IN YIELD AND PROCESS EFFICIENCY.
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