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    • 2. 发明申请
    • LOUDSPEAKER
    • 喇叭
    • WO2006092609A1
    • 2006-09-08
    • PCT/GB2006/000753
    • 2006-03-02
    • KH TECHNOLOGY CORPORATIONDODD, Mark
    • DODD, Mark
    • H04R1/30H04R7/12
    • H04R1/34
    • A loudspeaker comprises a horn waveguide having a waveguide surface, and a transducer located in, or adjacent to, a throat of the horn waveguide. The transducer has a substantially rigid convex dome-shaped acoustically radiating surface. A horn angle subtended between a longitudinal axis of the horn waveguide and the waveguide surface at the throat of the horn, is in the range 20 to 60 degrees. An intersection angle subtended between a plane tangential to the dome shape of the acoustically radiating surface and a plane tangential to the waveguide surface at a point where the dome shape or an extrapolation of the dome shape meets the waveguide surface or an extrapolation of the waveguide surface, is in the range 85 to 110 degrees.
    • 扬声器包括具有波导表面的喇叭波导和位于喇叭波导的喉部中或邻近喇叭波导的喉部的换能器。 传感器具有基本刚性的凸圆顶形声辐射表面。 在喇叭波导的纵轴与喇叭喉部的波导面对置的喇叭角在20〜60度的范围内。 在圆顶形状或圆顶形外插与波导表面相交的点或波导表面的外插之间,在与声辐射表面的圆顶形状相切的平面和与波导表面相切的平面之间的相交角 ,在85到110度的范围内。
    • 4. 发明申请
    • PHASE PLUG
    • 相位插头
    • WO2007122390A1
    • 2007-11-01
    • PCT/GB2007/001379
    • 2007-04-13
    • GP ACOUSTICS (UK) LIMITEDDODD, MarkOCLEE-BROWN, Jack, Anthony
    • DODD, MarkOCLEE-BROWN, Jack, Anthony
    • H04R1/30
    • H04R1/30H04R1/24H04R2201/34
    • A phase plug comprises a body having an input side for receiving acoustic waves and an output side for transmitting acoustic waves, the body including a plurality of channels extending from the input side to the output side for propagating acoustic waves through the body. The input side comprises an input surface which includes a plurality of openings constituting entrances for the channels, the input surface being substantially part of a sphere or an ellipsoid in shape. The areas of the openings vary with radial position on the input surface, the radial position being measured in a direction extending perpendicularly from a central axis extending through the input surface. The variation in the areas is a function of the cosine of an angle subtended at the centre of the sphere or a focus of the ellipsoid between the central axis and the radial position.
    • 相位插头包括具有用于接收声波的输入侧的本体和用于传输声波的输出侧,该主体包括从输入侧延伸到输出侧的多个通道,用于将声波传播通过本体。 输入侧包括输入表面,该输入表面包括构成通道入口的多个开口,输入表面基本上是球形或椭圆形的一部分。 开口的区域随着输入表面上的径向位置而变化,径向位置是从延伸穿过输入表面的中心轴垂直延伸的方向测量的。 这些区域的变化是在球体中心的对角的余弦的余弦或中心轴与径向位置之间的椭球的焦点的函数。
    • 5. 发明申请
    • PHASE PLUG
    • 相位插头
    • WO2007122386A1
    • 2007-11-01
    • PCT/GB2007/001375
    • 2007-04-13
    • GP ACOUSTICS (UK) LIMITEDDODD, Mark
    • DODD, Mark
    • H04R1/30
    • H04R1/30
    • A phase plug comprises a body having an input side for receiving acoustic waves and an output side for transmitting acoustic waves, the body including a plurality of channels extending from the input side to the output side for propagating acoustic waves through the body. The input side comprises an input surface which includes a plurality of slots constituting entrances for the channels, each slot being arranged in a substantially radial orientation on the input surface about a central axis extending through the input surface. Substantially the entire input surface situated between the slots is concave and substantially part of a sphere or an ellipsoid in shape.
    • 相位插头包括具有用于接收声波的输入侧的本体和用于传输声波的输出侧,该主体包括从输入侧延伸到输出侧的多个通道,用于将声波传播通过本体。 输入侧包括输入表面,该输入表面包括构成通道入口的多个槽,每个槽围绕延伸穿过输入表面的中心轴在输入表面上以基本上径向的方向布置。 基本上位于槽之间的整个输入表面是凹形的,并且基本上是球形或椭圆形的大致部分。
    • 6. 发明申请
    • MULTI-FUNCTION HYDRAULIC VALVE ASSEMBLY
    • 多功能液压阀组件
    • WO2003074884A1
    • 2003-09-12
    • PCT/CA2003/000212
    • 2003-02-14
    • LIFT TECHNOLOGIES INC.MONDANI, LucianoDODD, Mark
    • MONDANI, LucianoDODD, Mark
    • F15B13/07
    • B66F9/148B66F9/143B66F9/22F15B11/20F15B13/07Y10T137/2554Y10T137/8667Y10T137/8671
    • A hydraulic valve assembly (10) for selectably delivering hydraulic fluid from a supply of hydraulic fluid to one of a first hydraulic operator (80) and a second hydraulic operator (82) is disclosed. The assembly includes first (32) and second (34) supply ports which communicate with the supply (18) and four operator ports (44,46,48,50). First (44) and third (48) ports communicate with the first hydraulic operator (80). Second (46) and fourth (50) ports communicate with the fourth hydraulic operator (82). First (36) and second (38) chambers are provided. The first chamber communicates with the first supply port and first and second operator ports. The second chamber communicates with the second supply port and third and fourth operator ports. Two selection valves (60,61) operating in unison are each located in each chamber. The selection valves operate between a first position at a first hydraulic fluid pressure and a second position at a second hydraulic fluid pressure. In a first position, the valves permit fluid communication of the first and second supply ports with the first and third operator ports, respectively. In a second position, the valves permit fluid communication with the second and fourth operator ports.
    • 公开了一种用于将液压流体从液压流体供给可选地输送到第一液压操作器(80)和第二液压操作器(82)之一的液压阀组件(10)。 组件包括与电源(18)和四个操作器端口(44,46,48,50)连通的第一(32)和第二(34)供电端口。 第一(44)和第三(48)端口与第一液压操作器(80)通信。 第二(46)和第四(50)端口与第四液压操作器(82)通信。 提供第一(36)和第二(38)室。 第一室与第一供应口和第一和第二操作口连通。 第二室与第二供应口和第三和第四操作者端口连通。 两个选择阀(60,61)一致地位于每个室中。 选择阀在第一液压流体压力的第一位置和在第二液压流体压力下的第二位置之间操作。 在第一位置,阀允许第一和第二供应端口与第一和第三操作者端口分别流体连通。 在第二位置,阀允许与第二和第四操作者端口的流体连通。
    • 8. 发明申请
    • FORK MOVEMENT ASSEMBLY FOR LIFT TRUCKS
    • 叉车运动装置
    • WO2003070617A1
    • 2003-08-28
    • PCT/CA2003/000211
    • 2003-02-14
    • LIFT TECHNOLOGIES INC.MONDANI, LucianoDODD, Mark
    • MONDANI, LucianoDODD, Mark
    • B66F9/14
    • B66F9/143B66F9/148
    • A side shifting and fork positioning assembly for a lift truck is disclosed. The assembly includes a carriage (2) which moves in a lift truck mast. The carriage includes a pair of horizontally spaced apart vertical members (6) and a frame support member (4) secured transversely to the vertical members. A side shift frame (20) slides on the carriage. An upper cross member (22) of the side shift frame supports two forks (5) along their hook portion. Hydraulically actuated cylinders (12, 14) located in the frame support member move the side shift frame. The assembly also includes first and second fork shoes (40a, 40b) movably secured to the side shift frame. Each of the fork shoes define a contact surface to engage the forks. The contact surface of the fork shoes is located no further forward than a front face of the upper cross member. The assembly includes a fork positioner (3) which moves the first fork shoe relative to the second fork shoe, where the fork shoes are maintained at an equal distance from the center of the side shift frame.
    • 公开了一种用于升降车的侧移和叉定位组件。 组件包括在升降车桅杆中移动的滑架(2)。 托架包括一对水平间隔开的垂直构件(6)和横向于垂直构件固定的框架支撑构件(4)。 侧移架(20)在滑架上滑动。 侧换挡架的上横梁(22)沿其钩部支撑两个叉(5)。 位于框架支撑构件中的液压致动缸(12,14)移动侧移架。 组件还包括可移动地固定到侧移架的第一和第二叉形鞋(40a,40b)。 每个叉子鞋子定义接合表面以接合叉子。 叉子的接触表面不比上横向构件的前表面更向前。 该组件包括叉定位器(3),叉定位器(3)使第一叉脚相对于第二叉脚移动,叉脚保持在与侧移框架中心相等的距离处。