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    • 4. 发明授权
    • Vacuum cleaner with air bleed
    • 吸尘器带有空气
    • US07278181B2
    • 2007-10-09
    • US10468870
    • 2002-02-12
    • David Stuart HarrisBenjamin EvansGordon James Howes
    • David Stuart HarrisBenjamin EvansGordon James Howes
    • A47L9/06
    • A47L9/02
    • A vacuum cleaner comprises a cyclonic separator (116) for separating dirt and dust from an incoming airflow. A tool (300) and a suction conduit (114) connect the tool (300) to the separator (116). The tool (300) comprises a main air inlet aperture for engaging with a surface to be cleaned and a bleed air inlet (310) for allowing air to bleed into the suction path. The bleed air inlet (310) is located such that it is separate from the main inlet. The cross-sectional area of the bleed air inlet (310) is sufficiently large that, in use, the bleed air inlet (310) admits a sufficient quantity of air to maintain adequate separation efficiency in the separator of the cleaner even when the main air inlet is fully blocked.
    • 真空吸尘器包括用于从进入的气流中分离污垢和灰尘的旋风分离器(116)。 工具(300)和抽吸管道(114)将工具(300)连接到分离器(116)。 工具(300)包括用于与要清洁的表面接合的主空气入口孔和用于允许空气渗入吸入路径的排气入口(310)。 排放空气入口(310)被定位成使其与主入口分开。 排气入口(310)的横截面积足够大,使用时,排气入口(310)允许足够量的空气,以便在清洁剂的分离器中保持足够的分离效率,即使主空气 入口完全堵塞。
    • 5. 发明申请
    • Guided underwater object
    • 引导水下物体
    • US20050099890A1
    • 2005-05-12
    • US10938415
    • 2004-09-10
    • Benjamin EvansRichard Gibson
    • Benjamin EvansRichard Gibson
    • G01S1/76G01S3/803G05D1/10G01S15/00
    • G01S1/76G01S3/803G05D1/10
    • A guided underwater object (GUO) (100) comprises steering means, an on-board guidance system (200) for controlling the steering means, and a hydrophone unit or units (104A, 104B, 104C, 104D, 104E, 104F, 104G, 104H) arranged to pass signals induced therein by an acoustic guiding beam to the on-board guidance system to effect directional control of the self-propelled underwater object. The GUO is guided by a remote guidance system characterised by a plurality of transmitter arrays (402A, 402B, 402C, 402D; 412A, 412B, 412C, 412D; 422P, 422Q, 422R) arranged to transmit a plurality of contiguous acoustic beams (302A, 302B, 302C, 302D) each having a different frequency or frequency chirp (or other acoustic signal coding) and enclosing a guidance corridor of lower sound level (‘null’) (304) extending approximately in the direction of propagation of the acoustic beams and defining a flight path of the object. The GUO requires no on-board search sensors, no communications link with the guidance system and is of low cost.
    • 引导水下物体(GUO)(100)包括转向装置,用于控制转向装置的车载引导系统(200)和水听器单元(104A,104B,104C,104D,104E ,104F,104G,104H),其布置成将由声引导梁引导的信号传递到车载引导系统,以实现自推进水下物体的方向控制。 GUO由远程引导系统引导,其特征在于多个发射机阵列(402A,402B,402C,402D; 412A,412B,412C,412D; 422P,422Q,422R) 每个具有不同频率或频率啁啾声(或其它声信号编码)的邻近声束(302A,302B,302C,302D),并且包围较低声级的引导走廊(“零”), )(304)大致沿着声束的传播方向延伸并且限定物体的飞行路径。 GUO不需要车载搜索传感器,与引导系统无通信连接,成本低廉。