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    • 3. 发明申请
    • A DOWN-THE-HOLE HAMMER
    • 一个下洞穴锤
    • WO2012049331A2
    • 2012-04-19
    • PCT/EP2011/068136
    • 2011-10-17
    • MINROC TECHNICAL PROMOTIONS LIMITEDPURCELL, Joseph
    • PURCELL, Joseph
    • E21B4/14E21B6/08E21B17/076
    • The present invention relates to a down-the-hole hammer comprising an external cylindrical outer wear sleeve, a sliding piston mounted for reciprocating movement within the outer wear sleeve to strike a percussion bit of a drill bit assembly located at the forward end of the outer wear sleeve. The drill bit assembly comprises a percussion bit having a head portion formed with an axially extending stub shank; axially extending splines on the stub shank slideably engageable with complementary splines formed on a drive chuck whereby rotational drive from the chuck may be transmitted to the stub shank; a bit retaining ring adapted for engagement with a retaining shoulder on the stub shank to retain the stub shank in the drill bit assembly; and engagement means on the chuck adapted for connecting the chuck to a drive means of the fluid-operated percussion drill tool; the bit retaining ring comprises a shoulder for engagement with an upper end of the chuck to hold the retaining ring in place in the assembly. The assembly further comprises a bushing arranged above the chuck. An upper portion of the bushing has an internal diameter dimensioned to provide a sealing fit with the piston nose. The bit retaining ring or the lower portion of the bushing has an internal diameter dimensioned to provide a close sliding fit with the outer diameter of the retaining shoulder on the stub shank.
    • 本发明涉及一种下孔锤,其包括外圆柱形外磨损套筒,滑动活塞,其安装成用于在外磨损套筒内往复运动,以撞击钻头组件的冲击钻头,位于外壳的前端 穿袖子 钻头组件包括具有形成有轴向延伸的短柄柄的头部的冲击钻头; 短柄轴上的轴向延伸的花键可滑动地与形成在驱动卡盘上的互补花键相接合,从而卡盘的旋转驱动可以被传递到短柄柄; 一个固定环,其适于与所述短柄柄上的保持肩部接合,以将所述短柄保持在所述钻头组件中; 以及卡盘上的接合装置,其适于将卡盘连接到流体操作的冲击钻具的驱动装置; 钻头保持环包括用于与卡盘的上端接合以将保持环保持在组件中的适当位置的肩部。 组件还包括布置在卡盘上方的衬套。 衬套的上部具有内径,其尺寸被设计成提供与活塞鼻部的密封配合。 钻头保持环或衬套的下部具有内径,其尺寸被设计成提供与柄上的保持肩部的外径的紧密滑动配合。
    • 6. 发明申请
    • AN ENSEMBLE METHOD AND APPARATUS FOR CLASSIFYING MATERIALS AND QUANTIFYING THE COMPOSITION OF MIXTURES
    • 用于分类材料和量化混合物组成的方法和装置
    • WO2008107465A1
    • 2008-09-12
    • PCT/EP2008/052695
    • 2008-03-05
    • NATIONAL UNIVERSITY OF IRELAND, GALWAYHENNESSY, KennethMADDEN, Michael GerardRYDER, Alan GeorgeHOWLEY, Tom
    • HENNESSY, KennethMADDEN, Michael GerardRYDER, Alan GeorgeHOWLEY, Tom
    • G01N21/65
    • G01N21/65G01N2201/1293
    • A method of and system for generating models with which to classify or quantify spectra of unknown mixtures of compounds to permit the specific identification or quantification of a target analyte in complex mixtures based on spectral data, the method comprising the steps of: providing a training set of training spectra, each spectrum representing a mixture of known compounds and each having a plurality of spectral attributes, each at a different wavelength, choosing a plurality of wavelengths, determining at least the value of the spectral attribute at each chosen wavelength in each training spectrum in the training set, and building a model for each chosen wavelength by correlating the determined attribute values at said chosen wavelength, a method and system for classifying the spectrum of a mixture of unknown compounds, and a method and system for quantifying the spectrum of a mixture of unknown compounds to determine concentrations therein, using said models.
    • 一种用于产生模型的方法和系统,其用于对化合物的未知混合物的光谱进行分类或定量,以允许基于光谱数据对复杂混合物中的目标分析物进行特异性鉴定或定量,所述方法包括以下步骤:提供训练集 训练光谱,每个光谱表示已知化合物的混合物,每个具有多个光谱属性,每个具有不同的波长,选择多个波长,至少确定每个训练光谱中每个选定波长处的光谱属性的值 在所述训练集中,并且通过将所选择的波长处的所确定的属性值相关联来构建每个选择的波长的模型,用于对未知化合物的混合物的光谱进行分类的方法和系统,以及用于量化 使用所述模型,用未知化合物的混合物测定其中的浓度。
    • 7. 发明申请
    • DETECTION OF PARKING GARAGE CONTEXT OR BUILDING CONTEXT BY A GNSS RECEIVER
    • 通过GNSS接收机检测停车场的背景或建筑物的背景
    • WO2017001207A1
    • 2017-01-05
    • PCT/EP2016/063964
    • 2016-06-16
    • QUALCOMM TECHNOLOGIES INTERNATIONAL, LTD.
    • GARG, VivekRAMAMURTHY, Madhukar
    • G01S19/42
    • G01S19/42G01S19/24
    • The system provides a global navigation satellite system (GNSS) receiver in a vehicle including a radio frequency (RF) receiving circuit for receiving GNSS signals from a plurality of GNSS satellites orbiting Earth at different elevations, and a processor. The processor is configured to calculate a first signal to noise ratio (SNR) for a first GNSS satellite, calculate a second SNR for a second GNSS satellite, monitor a relative change in the first SNR with respect to the second SNR over time, determine that the GNSS receiver has entered a parking garage based on the relative change in the first SNR with respect to the second SNR, in response to this determination, restrict a positioning algorithm to estimate the position of the vehicle upon the vehicle exiting the parking garage to be within a specified range of a known position of an entrance of the parking garage, and execute the restricted positioning algorithm to estimate a position of the GNSS receiver based on the received GNSS signals.
    • 该系统在车辆中提供全球导航卫星系统(GNSS)接收机,其包括用于从在不同高度绕地球轨道运行的多个GNSS卫星接收GNSS信号的射频(RF)接收电路和处理器。 处理器被配置为计算第一GNSS卫星的第一信噪比(SNR),计算第二GNSS卫星的第二SNR,监测第一SNR相对于第二SNR随时间的相对变化,确定 GNSS接收机基于第一SNR相对于第二SNR的相对变化进入停车库,响应于该确定,限制定位算法以估计车辆离开停车库的车辆的位置为 在停车库的入口的已知位置的指定范围内,并且执行受限定位算法以基于接收到的GNSS信号来估计GNSS接收机的位置。