Portable handheld work apparatus
    1.
    发明授权

    公开(公告)号:US06536117B2

    公开(公告)日:2003-03-25

    申请号:US09903661

    申请日:2001-07-13

    IPC分类号: A01D3468

    CPC分类号: A01D34/902 Y10T403/32172

    摘要: The invention relates to portable handheld work apparatus including a brushcutter, edge cutter or the like. The work apparatus has a drive motor (1) and a cutting tool (2) driven by the drive motor. The work apparatus includes a guide tube (3) for guiding a drive shaft (4) as well as a handle (5) fixed on the guide tube (3). The drive shaft (4) connects the cutting tool (2) to the drive motor (1). The handle (5) is in the form of a handle bracket (8) and can be pivoted about a pivot axis (7) lying transversely to the longitudinal axis (6) of the guide tube (3) for adjusting the distance (a) of the handle to the guide tube (3). A spring action handle bracket holder (22, 23) is mounted between the handle bracket (8) and the guide tube (3). The handle bracket holder is especially vibration dampening and extends with a component in the direction of the longitudinal axis (6).

    Internal combustion engine having a carburetor
    2.
    发明授权
    Internal combustion engine having a carburetor 有权
    具有化油器的内燃机

    公开(公告)号:US06382160B2

    公开(公告)日:2002-05-07

    申请号:US09846190

    申请日:2001-05-02

    IPC分类号: F02M2900

    摘要: The available space within the apparatus housing (2) in the portable handheld work apparatus is limited so that the individual components have to be accommodated in a tight space. In work apparatus having internal combustion engines, this means that the carburetor (7) is flange connected directly to the engine block (12) in the region of the inlet opening (11). A spacer (9) is provided in order to avoid unfavorable heat effects on the carburetor (7) and to provide an advantageous mounting position. The spacer (9) is positioned between the engine (10) and the carburetor (7). The spacer (9) has a channel section (18) which runs diagonally to the respective flange planes (19, 20) of the spacer (9). This channel section (18) connects the intake channel (21) of the carburetor (7) to the inlet opening (11) of the engine (10).

    摘要翻译: 便携式手持式工作装置中的装置壳体(2)内的可用空间被限制,使得各个部件必须容纳在紧密的空间中。 在具有内燃机的作业装置中,这意味着化油器(7)在入口(11)的区域中直接与发动机缸体(12)连接。 为了避免对化油器(7)的不利影响并提供有利的安装位置,设置有间隔件(9)。 间隔件(9)位于发动机(10)和化油器(7)之间。 间隔件(9)具有与间隔件(9)的相应凸缘平面(19,20)对角延伸的通道部分(18)。 该通道部分(18)将化油器(7)的进气通道(21)连接到发动机(10)的入口(11)。

    Muffler for a two-stroke internal combustion engine
    3.
    发明授权
    Muffler for a two-stroke internal combustion engine 有权
    二冲程内燃机消声器

    公开(公告)号:US5996732A

    公开(公告)日:1999-12-07

    申请号:US245568

    申请日:1999-02-05

    摘要: A muffler for a two-stroke internal combustion engine has a housing enclosing a hollow space and having an exhaust gas inlet and an exhaust gas outlet. Shaped sheet metal members are mounted in the housing and define an exhaust gas flow channel. The flow channel extends at least over a portion of its length in a plane of the sheet metal members. A first one of the sheet metal members has a projecting portion projecting from the plane of the sheet metal members and forming a connector of the flow channel. The connector communicates with the exhaust gas inlet. A second one of the sheet metal members has a projecting portion projecting from the plane of the sheet metal members and forming an end portion of the flow channel opening into the hollow space of the housing.

    摘要翻译: 用于二冲程内燃机的消声器具有包围中空空间并具有排气入口和排气出口的壳体。 形状的钣金构件安装在壳体中并限定排气流动通道。 流动通道至少在其长度的一部分上延伸到金属板构件的平面中。 片状金属构件中的第一个具有从金属板构件的平面突出并形成流动通道的连接器的突出部分。 连接器与废气入口连通。 第二个金属板构件具有从金属板构件的平面突出的突出部分,并且将流动通道开口的端部形成在壳体的中空空间中。

    Process for finding the overall monitoring threshold during a
bit-rate-reducing source coding
    4.
    发明授权
    Process for finding the overall monitoring threshold during a bit-rate-reducing source coding 失效
    在比特率降低源编码期间查找整体监视阈值的过程

    公开(公告)号:US5740317A

    公开(公告)日:1998-04-14

    申请号:US520765

    申请日:1995-08-30

    CPC分类号: H04B1/665

    摘要: Source coding digitized audio signals includes providing time or spectral domain sampling values of the digitized audio signal, requantizing the sampling values according their permissible quantizing noise as determined by a coding and requantizing control signal, and multiplexing the control signal and the requantized sampling values into a time multiplex frame depending on the bit rate reduction employed. The coding and requantizing control signal is determined from the sampling values by determining the global masking effect from all relevant maskers which are tonal maskers and noise maskers, and which result from the sampling values, and from a silence audio threshold. The global masking effect is determined by segmenting masking edges of possible maskers and approximating in individual segments with lower order polynomials, and determining coefficients of the lower order polynomials, converting the maskers into logarithmic levels and using intensities of the maskers to determine the coefficients of the lower order polynomials, and determining the global masking threshold, step-wise, masker by masker, at individual possible base points, from the polynomials describing masking edges of the possible maskers.

    摘要翻译: PCT No.PCT / EP92 / 01658 Sec。 371日期:1993年9月17日 102(e)日期1993年9月17日PCT提交1992年7月21日PCT公布。 公开号WO93 / 02508 日期:1993年2月4日源编码数字化音频信号包括提供数字化音频信号的时间或频域采样值,根据编码和再量化控制信号确定的可允许量化噪声重新采样采样值,并将控制信号和 根据所采用的比特率降低将需要量化的采样值分配到时间多路复用帧中。 通过从所有相关掩蔽器(其是音调掩蔽器和噪声掩蔽器)确定全局掩蔽效应,以及由采样值以及从静音音频阈值确定来自采样值的编码和再量化控制信号。 通过对可能的掩蔽器的掩蔽边缘进行分割并在具有较低阶多项式的各个段中近似来确定全局掩蔽效应,并且确定较低阶多项式的系数,将掩蔽器转换成对数级别,并且使用掩模的强度来确定 低阶多项式,以及在描述可能的掩蔽者的掩蔽边缘的多项式的各个可能的基点处,通过掩蔽器逐步地确定全局掩蔽阈值。

    Hand-held working tool
    5.
    发明授权
    Hand-held working tool 失效
    手持式工具

    公开(公告)号:US5692306A

    公开(公告)日:1997-12-02

    申请号:US626663

    申请日:1996-01-25

    摘要: A hand-held working tool has a tool member and a drive unit with an internal combustion engine drivingly connected to the tool member. A grip unit with vibration damping members is connected with the vibration damping members to the drive unit. Receiving cages for receiving the vibration damping members are connected either to the drive unit or the grip unit. Pins with a longitudinal axis are connected to the other one of the drive unit or the grip unit. They extend in the direction of the longitudinal axis at least partly into the receiving cages so as to be positioned substantially centrally in the vibration damping members. The vibration damping members have a greater extension in the direction of a first axis, extending substantially perpendicular to the longitudinal axis, than in a direction of a second axis, extending also substantially perpendicular to the longitudinal axis.

    摘要翻译: 手持式加工工具具有工具构件和驱动单元,其具有与工具构件驱动连接的内燃机。 具有减震构件的把手单元与减振构件连接到驱动单元。 用于接收减震构件的接收笼连接到驱动单元或手柄单元。 具有纵向轴线的销连接到驱动单元或手柄单元中的另一个。 它们沿着纵向轴线的方向至少部分地延伸到接收笼中,以便基本位于振动阻尼构件的中心位置。 振动阻尼构件在基本上垂直于纵向轴线的第一轴线的方向上比在基本上垂直于纵向轴线延伸的第二轴线的方向上具有更大的延伸。

    Polyurethane-based friable sealing compound
    7.
    发明授权
    Polyurethane-based friable sealing compound 失效
    聚氨酯类脆性密封剂

    公开(公告)号:US5382647A

    公开(公告)日:1995-01-17

    申请号:US39363

    申请日:1993-04-16

    摘要: A polyurethane friable sealing compound free of solvent and plasticizer having a shore A hardness of below 40 and consisting essentially of a polyol component and an isocyanate component. The polyol component is selected from modified triglycerides obtained by partial ring opening of epoxidized triglycerides of a fatty acid mixture containing olefinically unsaturated fatty acids and monohydric or polyhydric alcohols. The isocyanate component is selected from polyfunctional aromatic and aliphatic isocyanates, wherein the OH:NCO equivalent ratio is from 1:0.1 to 1:1.15.

    摘要翻译: PCT No.PCT / EP91 / 01899 Sec。 371日期:1993年04月16日 102(e)日期1993年4月16日PCT提交1991年10月7日PCT公布。 出版物WO92 / 07017 日期:1992年4月30日。一种聚氨酯脆性密封化合物,其不含溶剂和增塑剂,其Shore A硬度低于40,并且基本上由多元醇组分和异氰酸酯组分组成。 多元醇组分选自通过含有烯属不饱和脂肪酸和一元醇或多元醇的脂肪酸混合物的环氧化甘油三酯的部分开环获得的改性甘油三酸酯。 异氰酸酯组分选自多官能芳族和脂族异氰酸酯,其中OH:NCO当量比为1:0.1至1:1.15。

    Thiodiglycol alkoxylate derivatives, a process for their production and
their use as fabric softeners
    8.
    发明授权
    Thiodiglycol alkoxylate derivatives, a process for their production and their use as fabric softeners 失效
    硫二甘醇烷氧基化物衍生物,其生产方法及其作为织物柔软剂的用途

    公开(公告)号:US5308512A

    公开(公告)日:1994-05-03

    申请号:US961683

    申请日:1993-03-05

    CPC分类号: C07C317/18 D06M13/278

    摘要: The process of producing alkoxylated thiodiglycol sulfoxide derivatives and thiodiglycol sulfone derivatives corresponding to formula I ##STR1## wherein X.sub.1 and X.sub.2 may be the same or different and represent a hydroxyl-substituted aklyl radical containing 8 to 30 carbon atoms, an acyl radical of an alkyl monocarboxylic acid containing 8 to 30 carbon atoms, and X.sub.1 or X.sub.2 may be hydrogen, R represents hydrogen or methyl, z is 1 or 2, n is 0 to 25 and m is 1 to 25, by reacting an alkoxylated thiodiglycol with a C.sub.8 14 C.sub.30 .alpha.-olefin expoide or a C.sub.8 -C.sub.30 monocarboxylic acid in a molar ratio of about 1:1 to about 1:2, and oxidizing the mono- and bis- ethers or mono- and bis- esters formed to the sulfoxide or sulfone derivatives.

    摘要翻译: PCT No.PCT / EP91 / 01213 371日期1993年3月5日 102(e)1993年3月5日PCT PCT 1991年6月28日PCT公布。 出版物WO92 / 00959 日本1992年1月23日。对应于式I的烷氧基化硫二甘醇亚砜衍生物和硫二甘醇砜衍生物的制备方法(I)其中X 1和X 2可以相同或不同,表示羟基取代的甲酰基,其含有8〜 碳原子数为8〜30的烷基一元羧酸的酰基,X 1或X 2可以是氢,R表示氢或甲基,z表示1或2,n表示0〜25,m表示1〜25 通过使烷氧基化硫二甘醇与C814C30α-烯烃展示剂或C8-C30单羧酸的摩尔比为约1:1至约1:2的反应,并将单 - 和二 - 醚或单 - 和双 - - 与亚砜或砜衍生物形成的酯。

    Method of transmitting or storing masked sub-band coded audio signals
    9.
    发明授权
    Method of transmitting or storing masked sub-band coded audio signals 失效
    发送或存储被屏蔽的子带编码音频信号的方法

    公开(公告)号:US4972484A

    公开(公告)日:1990-11-20

    申请号:US238350

    申请日:1988-07-21

    CPC分类号: H04H20/88 H04B1/665

    摘要: In the transmission of audio signals, the audio signal is digitally represented by use of quadrature mirror filtering in the form a plurality of spectral sub-band signals. The quantizing of the sample values in the sub-bands, e.g. 24 sub-bands, is controlled to the extent that the quantizing noise levels of the individual sub-band signals are at approximately the same level difference from the masking threshold of the human auditory system resulting from the individual sub-band signals. The differences of the quantizing noise levels of the sub-band signals with respect to the resulting masking threshold are set by the difference between the total information flow required for coding and the total information flow available for coding. The available total information flow is set and may then fluctuate as a function of the signal.

    摘要翻译: PCT No.PCT / EP87 / 00723 Sec。 371日期:1988年7月21日 102(e)日期1988年7月21日PCT申请日1987年11月20日PCT公布。 出版物WO88 / 04117 日期:1988年6月2日。在音频信号的传输中,音频信号以多个频谱子带信号的形式使用正交镜像滤波数字地表示。 量子化子带中的样本值,例如 24个子带被控制到个别子带信号的量化噪声电平与由各个子带信号产生的人体听觉系统的掩蔽阈值大致相同的水平差的程度。 子带信号的量化噪声电平相对于所得到的掩蔽阈值的差异由编码所需的总信息流与可用于编码的总信息流之间的差设定。 可用的总信息流程被设置,然后可以作为信号的函数而波动。