会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Sequential fluid injection process for oil recovery from a gas cap
    • 从气帽回收油的顺序流体注入过程
    • US5267615A
    • 1993-12-07
    • US891324
    • 1992-05-29
    • Richard L. ChristiansenSidney R. Smith
    • Richard L. ChristiansenSidney R. Smith
    • E21B43/16E21B43/18E21B43/20
    • E21B43/16E21B43/18E21B43/20
    • A process is provided for recovering oil from a gas cap in a subterranean oil-bearing formation by injecting a water-alternating-gas cycle into the gas cap via an injection well in fluid communication therewith. The cycle includes a slug of an aqueous fluid and a slug of a non-aqueous gas. The aqueous fluid slug is substantially smaller in volume than the non-aqueous gas slug, the aqueous fluid slug being only of sufficient volume to substantially increase the water saturation of the gas cap without substantially increasing the gas saturation of the gas cap. The two slugs are injected into the gas cap sequentially, thereby displacing at least a portion of the oil in place from the gas cap into a production well. Any number of cycles are performed in sequence until the process is terminated.
    • 提供了一种通过经由与其流体连通的注入井​​将水交替气体循环注入到气帽中来从地下含油地层中的气帽回收油的方法。 该循环包括水性液体的块和非水性气体的块状物。 含水流体块体的体积比非水性气体块大得多,水性流体块仅具有足够的体积,以显着增加气帽的水饱和度,而基本上不增加气帽的气体饱和度。 将两个cap子依次注入到气帽中,从而将至少一部分油从气帽移动到生产井中。 任何数量的循环都按顺序进行,直到过程终止。
    • 4. 发明授权
    • Critically coupled bi-periodic driver antenna
    • 关键耦合双周期驱动天线
    • US5841406A
    • 1998-11-24
    • US697033
    • 1996-08-19
    • Sidney C. Smith
    • Sidney C. Smith
    • H01Q1/12H01Q19/30H01Q21/12
    • H01Q1/1228H01Q19/30H01Q21/12
    • The present invention is an improved Yagi-Uda style antenna. Primarily, the present invention provides that at least two driven elements are spaced approximately 0.1 .lambda. apart from each other. The driven elements are forced into a critical couple mode by electrically connecting the two driven elements with a matched phasing delay line. The phasing delay line retards the phase current sufficiently to, coupled with the specified element separation, satisfy both the endfire condition and the Hansen-Woodyard condition. This provides for increased directivity and gain, and deep nulls in the field strength. The at least two critically coupled elements compromise at least a first driven element, which is the primary broadcast element, and a second driven element, which is a driven reflector element. The reflector element acts to augment field strength in a direction toward the first driven element and reduce field strength in a direction away from the first driven element. The present invention may include the use of at least one parasitic director elements. These are elements that are not electrically coupled to the driven elements, but are inductively coupled. The present invention further provides an antenna with a greatly reduced loss resistance component. The present invention reduces nonradiative resistance losses with an element mounting saddle that incorporates an enlarged conductive contact surface area. This enlarged conductive contact surface area is designed to conform with the surface of the radiative element to be mounted on the saddle. By increasing the conductive contact surface area, current density at any one point in the contact is reduced. This allows larger currents to flow through the contact area with less resistance heating.
    • 本发明是改进的八木Uda型天线。 首先,本发明提供了至少两个从动元件彼此间隔大约0.1λ。 驱动元件通过用匹配的相位延迟线电连接两个从动元件而被迫进入关键耦合模式。 相位延迟线使相位电流足够延迟,与指定的元件分离相结合,满足终端条件和汉森 - 伍德伍德条件。 这提供了增强的方向性和增益,以及场强的深空。 所述至少两个关键耦合元件至少损害作为主要广播元件的第一驱动元件和作为从动反射器元件的第二从动元件。 反射器元件用于在朝向第一被驱动元件的方向上增加场强,并且在远离第一被驱动元件的方向上减小场强。 本发明可以包括使用至少一个寄生导向器元件。 这些是不与驱动元件电耦合但是电感耦合的元件。 本发明还提供一种具有大大降低的损耗电阻分量的天线。 本发明通过具有放大的导电接触表面积的元件安装座来减少非辐射电阻损耗。 该放大的导电接触表面区域被设计成符合要安装在鞍座上的辐射元件的表面。 通过增加导电接触表面积,减小接触中任何一点处的电流密度。 这允许较大的电流以较小的电阻加热流过接触区域。
    • 9. 发明授权
    • Surgical apparatus for tissue removal
    • 用于组织去除的手术设备
    • US5947988A
    • 1999-09-07
    • US984797
    • 1997-12-04
    • Sidney Paul Smith
    • Sidney Paul Smith
    • A61B17/32
    • A61B17/3203
    • A surgical instrument including an elongated member connected to both suction for removing excised tissues and fluids and to a source of pressurized fluid. The member has an inner and outer wall with a hollow lumen extending the length of the member which connects a variably shaped ostium, extending through both walls of the member, to suction. The member also has peripheral channels extending the length of the member which connect the fluid source to the ostium through slits in the perimeter of the ostial wall. The slits collectively extend almost the full perimeter of the ostial wall. The slits are preferably designed so that as pressurized fluid is ejected from any point along a slit across the ostium, the fluid will come in contact with an opposing spray of fluid ejected from an opposing point in an opposing slit. The two sprays simultaneously applied across the ostium prevent the tissue from being pushed away by either spray, which in conjunction with a suction force, act to hold the tissue within the ostium as it is cut. Slit-type openings impart superior tissue cutting features compared to the nozzle-type openings of prior art devices because the cutting surface of the spray is elongated. The present invention can utilize a continuous stream from opposing slits, synchronized pulsations from opposing slits, alternating pulsations, or any combination thereof, and the frequency and intensity of the sprays can be varied to optimize tissue removal.
    • 一种手术器械,包括连接到两个吸力的细长构件,用于去除切除的组织和流体以及加压流体源。 所述构件具有内壁和外壁,所述内壁和外壁具有延伸所述构件的长度的中空腔,该长度连接可延伸穿过所述构件的两个壁的可变形的口,以吸引。 该构件还具有延伸部件的长度的周边通道,该长度通过在口壁的周边中的狭缝将流体源连接到口。 这些缝隙几乎整个地延伸到壁面的整个周边。 狭缝优选地设计成使得当加压流体沿着穿过口的狭缝的任何点喷射时,流体将与从相对的狭缝中的相对点喷射的相对的流体喷射接触。 两个喷雾同时施用在口腔上,防止组织被任何一种喷雾推开,随着抽吸力的作用,组织在被切割时将其保持在口中。 与现有技术装置的喷嘴型开口相比,狭缝型开口具有优异的组织切割特征,因为喷雾的切割表面是细长的。 本发明可以利用来自相对狭缝的连续流,来自相对狭缝的同步脉动,交替脉动或其任何组合,并且可改变喷雾的频率和强度以优化组织去除。