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公开(公告)号：US3950100A
公开(公告)日：1976-04-13
申请号：US518924
申请日：1974-10-29
申请人： Wayne H. Keene , Clarke E. Harris , Albert V. Jelalian , Christopher R. Miller , Richard E. Seavey
发明人： Wayne H. Keene , Clarke E. Harris , Albert V. Jelalian , Christopher R. Miller , Richard E. Seavey
CPC分类号： H01S3/1304 , G01P3/366 , G01P5/26 , G01S17/58 , G02F2/002
摘要： A laser heterodyne system is disclosed wherein received reflections of a beam of coherent light are amplified in a laser. The amplified received reflections are heterodyned with the light produced by the laser and the resulting beat frequency is detected using a photodetector. A controller, responsive to the beat frequency, controls, in one case, the frequency of a transmitting laser, and hence the frequency of the received light, and, in another case, the frequency of the light produced by the amplifying laser so that, in either case, the difference between the frequency of the received light and the frequency of the light produced by the amplifying laser is adjusted to maximize the amplification of the received light by the amlifying laser prior to detection by the photodetector.
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公开(公告)号：US3958881A
公开(公告)日：1976-05-25
申请号：US90526
申请日：1970-11-18
摘要： In a laser system, the method of operating a laser simultaneously as an oscillator to produce a beam of coherent light and as an amplifier for backscattered light from targets illuminated by the coherent light in such beam is disclosed.
摘要翻译： 在激光系统中，公开了作为振荡器同时操作激光以产生相干光束的方法，并且用作用于由该光束中的相干光照射的目标的后向散射光的放大器的方法。
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公开(公告)号：US08967606B2
公开(公告)日：2015-03-03
申请号：US13005032
申请日：2011-01-12
摘要： A pipe vise stand having increased utility and greater useable work space, particularly during use of vise provisions associated with the stand, is described. The stand features a base plate having a unique configuration in which one or more pipe benders are located within a workpiece support region defined along an upwardly directed face of the plate between vise provisions and corresponding support provisions.
摘要翻译： 描述了具有增加的效用和更大可用的工作空间的管虎钳架，特别是在与支架相关联的虎钳配置的使用期间。 该支架具有一个具有独特结构的基板，其中一个或多个管道弯曲器位于沿着虎钳配件和对应的支撑设备之间的板的向上指向的面定义的工件支撑区域内。
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公开(公告)号：US08777205B2
公开(公告)日：2014-07-15
申请号：US13005040
申请日：2011-01-12
CPC分类号： B25B1/205 , B25B1/2405 , B25B1/241
摘要： A pipe vise stand and system for increasing the size capacity of the pipe vise stand are described. Upon incorporation of the system in a pipe vise stand, the stand can accommodate pipes of significantly larger diameter. The system includes a pipe support member which is configured to be positioned on a vise base of the stand. The system also includes a jackscrew extender that provides or relocates a jackscrew associated with the stand to a lateral position alongside the stand. Related provisions and methods are also described.
摘要翻译： 描述了一种用于增加管虎钳的尺寸能力的管虎钳架和系统。 在将系统并入管虎钳支架中后，支架可以容纳显着更大直径的管道。 该系统包括配置成定位在支架的虎钳底座上的管道支撑构件。 该系统还包括一个起重螺旋增量器，其将与支架相关联的起重螺丝刀提供或重新定位在支架旁边的横向位置。 还描述了相关规定和方法。
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公开(公告)号：US06555934B2
公开(公告)日：2003-04-29
申请号：US09739156
申请日：2000-12-18
IPC分类号： H02J100
CPC分类号： H05K9/0064
摘要： A method for controlling ground plane voltages by locally, at one or more discrete points on the working ground reference, sensing a voltage difference between a working ground reference and an isolated ground reference, generating a voltage compensation signal based on the voltage difference, and driving the working ground reference with the voltage compensation signal to reduce the voltage difference.
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公开(公告)号：USD645321S1
公开(公告)日：2011-09-20
申请号：US29383088
申请日：2011-01-12
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公开(公告)号：US4865270A
公开(公告)日：1989-09-12
申请号：US254052
申请日：1988-10-06
IPC分类号： B64G1/60
CPC分类号： B64G1/60
摘要： A passive zero or microgravity leg restraint (10) includes a central support post (17) with a top (12) and a bottom (20). Extending from the central support post (17) and calf pad tab (15), to which calf pad (16) is attached, and foot pad tab (19), to which foot pad (18) is attached. Also extending from central support post (17) are knee pads (13 and 14). When the restraint is in use the user's legs are forced between pads (13, 14, 16 and 18) by a user imposed scissors action of the legs. The user's body is then supported in a zero or microgravity neutral body posture by the leg restraint. Calf pad (16) has semi-rigid elastic padding material covering structural stiffener (26). Foot pad (18) has padding material (25) and structural stiffener (27). Knee pads (13 and 14) have structural tube stiffener (28) at their core.
摘要翻译： 无源零或微重力腿限制器（10）包括具有顶部（12）和底部（20）的中心支撑柱（17）。 从中心支撑柱（17）和小腿垫片（15）延伸到其附着的小牛皮垫（16）和脚垫片（19），脚垫（18）附接到脚垫垫片（19）。 还从中央支撑柱（17）延伸的是膝垫（13和14）。 当约束被使用时，用户通过腿施加的剪刀动作迫使使用者的腿在垫（13,14,16和18）之间。 然后，用户的身体通过腿部约束被支撑在零或微重力中性身体姿势中。 小腿垫（16）具有覆盖结构加强筋（26）的半刚性弹性填充材料。 脚垫（18）具有衬垫材料（25）和结构加强件（27）。 膝垫（13和14）在其核心处具有结构管加强筋（28）。
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公开(公告)号：USD645323S1
公开(公告)日：2011-09-20
申请号：US29383091
申请日：2011-01-12
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公开(公告)号：USD645320S1
公开(公告)日：2011-09-20
申请号：US29383087
申请日：2011-01-12
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公开(公告)号：USD645319S1
公开(公告)日：2011-09-20
申请号：US29383085
申请日：2011-01-12
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