公开(公告)号：USD508150S1

公开(公告)日：2005-08-02

申请号：US29188477

申请日：2003-08-19

申请人： David R. Martin

设计人： David R. Martin

公开(公告)号：US5337805A

公开(公告)日：1994-08-16

申请号：US981951

申请日：1992-11-24

申请人： Dennis J. Green ,  Edward R. Szela ,  George J. Yamarik ,  David R. Martin

发明人： Dennis J. Green ,  Edward R. Szela ,  George J. Yamarik ,  David R. Martin

IPC分类号： F01D5/18 ,  F01D9/02 ,  B22C9/10

CPC分类号： F01D5/187 ,  F05D2230/21 ,  F05D2260/201 ,  Y02T50/673 ,  Y02T50/676

摘要： An airfoil core has a frame formed of passage forming elements supporting a pair of spanwisely extending passage forming elements within the frame. The pair of passage forming elements has at least one plurality of hole forming elements extending chordwisely therefrom and supported in part by at least one of the pair of passage forming elements to increase the durability of the core. In one embodiment, the core includes a trailing edge region framed by spanwisely and chordwisely extending elements.

摘要翻译： 翼型芯具有由在框架内支撑一对翼展方向延伸的通道形成元件的通道形成元件形成的框架。 所述一对通道形成元件具有至少一组孔形成元件，所述孔形成元件从所述一对通道形成元件中的至少一个部分地延伸到所述一对通道形成元件中，以增加所述芯的耐久性。 在一个实施例中，芯包括由翼展方向和弦向延伸元件构成的后缘区域。

公开(公告)号：US5462405A

公开(公告)日：1995-10-31

申请号：US262396

申请日：1994-06-20

申请人： Richard W. Hoff ,  David R. Martin

发明人： Richard W. Hoff ,  David R. Martin

IPC分类号： F01D5/18 ,  F01D9/02

CPC分类号： F01D5/187 ,  F05D2260/202 ,  F05D2260/2212 ,  Y02T50/673 ,  Y02T50/676

摘要： A coolable airfoil having internal cooling passages 82, 84, 74 is disclosed. Various construction details are developed to increase cooling in critical locations of the airfoil. In one embodiment, a pair of side-by-side spanwisely extending passages 82, 84 flow cooling air to the tip passage 74 which extends rearwardly in a flag-like manner.

摘要翻译： 公开了一种具有内部冷却通道82,84,74的可冷却翼型。 开发各种结构细节以增加机翼关键位置的冷却。 在一个实施例中，一对并排的翼展方向延伸的通道82,84将冷却空气流向尖端通道74，其以标志状的方式向后延伸。

公开(公告)号：US5048566A

公开(公告)日：1991-09-17

申请号：US586480

申请日：1990-09-21

申请人： Lloyd G. Cole ,  David R. Martin

发明人： Lloyd G. Cole ,  David R. Martin

IPC分类号： F16K11/065 ,  F16K31/126

CPC分类号： F16K31/126 ,  F16K11/065 ,  Y10T137/86815

摘要： A valve assembly embodies a valve element, an expansible and contractible chamber space having porting via which it is expanded and contracted, and a connecting rod that transmits the expansion and contraction of the chamber space to the valve element, in a signal plastic part.

摘要翻译： 阀组件包括阀元件，具有可膨胀和收缩的可膨胀和可收缩的腔室空间，通过其可膨胀和收缩，以及连接杆，其将信号塑料部件中的腔室空间的膨胀和收缩传递到阀元件。

公开(公告)号：US4016516A

公开(公告)日：1977-04-05

申请号：US637600

申请日：1975-12-04

申请人： Walter A. Sauter ,  David R. Martin

发明人： Walter A. Sauter ,  David R. Martin

IPC分类号： H01P1/22 ,  H03H7/25

CPC分类号： H01P1/22 ,  H03H7/255

摘要： Disclosed is a solid state signal controller designed to be inserted in a radio frequency transmission line or path between a source and a signal utilization device to allow the control by external means of signal amplitude ratio and polarity, with a minimum of distortion of the signal. This invention has a dynamic range of more than 100 db and is capable of greater power handling capacity than the prior art signal controllers. It employs a plurality of semiconductor diodes, commonly known as PIN diodes, each cooperating with an energy coupler and having their respective impedances controlled to effect a reflection of energy with either positive or negative polarity toward an output terminal.In one embodiment employing a single channel, a pair of control elements are employed. In the second embodiment, four impedance elements are employed to produce a pair of quadrature signals, each independently controllable in amplitude and polarity.

摘要翻译： 公开了一种固态信号控制器，被设计为插入在源和信号利用装置之间的射频传输线或路径中，以允许通过外部装置的信号幅度比和极性的控制，信号的失真最小。 本发明具有超过100db的动态范围，并且能够比现有技术的信号控制器具有更大的功率处理能力。 它采用通常称为PIN二极管的多个半导体二极管，每个半导体二极管与能量耦合器协同工作，并且使它们各自的阻抗被控制以实现朝向输出端子的正或负极性的能量的反射。

公开(公告)号：US4536130A

公开(公告)日：1985-08-20

申请号：US621653

申请日：1984-06-18

申请人： Salvatore Orlando ,  David R. Martin

发明人： Salvatore Orlando ,  David R. Martin

IPC分类号： F04C28/12 ,  G01D11/00 ,  F04B21/00

CPC分类号： F04C28/125 ,  F04C18/16 ,  F04C2240/81 ,  Y10T74/18312

摘要： The shaft coupling a reciprocating piston of a fluid motor to a slide valve shiftable longitudinally along a screw compressor housing and varying the amount of compressor suction gas returned to the suction port for varying compressor capacity constitutes an outer hollow tube having a smaller diameter indicator shaft mounted axially therein. The shaft carriers a helical V-groove on its exterior surface and a spring biased pin projecting radially inwardly from the outer tube rides in the helical groove such that, as the slide valve reciprocates, driven by the fluid motor piston, the indicator shaft is rotatably driven about its axis. Multiple cams fixed to the indicator shaft and rotatable therewith actuate juxtapositioned microswitches to indicate full load position, full unload position, and two intermediate load positions for the slide valve. The indicator shaft is directly axially connected to a potentiometer to provide an electrical analog output signal. A rotatable dial associated with the potentiometer permits calibration of the same. The hollow outer tube appropriately serves as the liquid supply conduit for liquid refrigerant or oil which is injected into the helical screw compressor working chamber via an injection port of the slide valve which port opens to the intermeshed helical screw rotors.

摘要翻译： 将流体马达的往复活塞联接到沿着螺杆压缩机壳体纵向移动的滑阀的轴和改变返回到吸入口的压缩机吸入气体的量以改变压缩机容量的轴构成具有较小直径的指示器轴的外部中空管 在其中。 轴承件在其外表面上具有螺旋形V形槽，并且从外管径向向内突出的弹簧偏置销骑在螺旋槽中，使得当滑阀往复运动时，由流体马达活塞驱动，指示器轴可旋转 驱动其轴线。 多个凸轮固定到指示器轴上并且可旋转地驱动并置的微动开关，以指示用于滑阀的满载位置，全卸载位置和两个中间负载位置。 指示轴直接轴向连接到电位器，以提供电气模拟输出信号。 与电位器相关联的可旋转拨盘允许校准。 中空的外管适合用作液体制冷剂或油的液体供应管道，其通过滑阀的注入口喷入螺旋式压缩机工作室，该入口通向相互啮合的螺旋转子。