Backing material for micromachined ultrasonic transducer devices
    53.
    发明申请
    Backing material for micromachined ultrasonic transducer devices 审中-公开
    用于微加工超声波换能器的支撑材料

    公开(公告)号:US20050043628A1

    公开(公告)日:2005-02-24

    申请号:US10959343

    申请日:2004-10-06

    Abstract: An ultrasonic transducer device comprising: an ultrasonic transducer array micromachined on a substrate; flexible electrical connections connected to the transducer array; and a body of acoustically attenuative material that supports the substrate and the flexible electrical connections. The acoustic backing material may contain additional features, such as tabs or notches, for use in positioning the transducer on fixtures during manufacturing or positioning the transducer within a housing during final assembly. Tabs or other features that are used only during manufacturing may be subsequently removed from the device. The MUT device itself may also be thinned so as to provide flexibility as desired. The backing material is preferably matched in acoustic impedance to the silicon wafer so as to prevent reflection at the interface of any acoustic energy propagating rearward, i.e., in the direction away from the device front surface. The backing material may also possess a high thermal conductivity to assist in removal of heat from the device.

    Abstract translation: 一种超声波换能器装置,包括:微机械加工在基底上的超声换能器阵列; 连接到换能器阵列的柔性电连接; 以及支撑衬底和柔性电连接的声衰减材料体。 声学衬垫材料可以包含附加特征,例如突片或凹口,用于在最终组装期间制造或将换能器定位在壳体内时将换能器定位在固定装置上。 仅在制造期间使用的标签或其它特征可随后从装置中移除。 MUT设备本身也可以被减薄,以便根据需要提供灵活性。 背衬材料优选地与硅晶片的声阻抗匹配,以便防止在向后传播的任何声能的界面处的反射,即远离器件前表面的方向上的反射。 背衬材料还可以具有高热导率以帮助从装置移除热量。

    Filler adapter for a multichambered container
    54.
    发明授权
    Filler adapter for a multichambered container 失效
    多用容器的填料适配器

    公开(公告)号:US5685351A

    公开(公告)日:1997-11-11

    申请号:US546782

    申请日:1995-10-23

    CPC classification number: B67C11/02 B65D47/00

    Abstract: A filler adapter assembly for a multichambered container. The filler adapter mounts on the open end of a multichambered container. The filler adapter enables individual chambers within the container to be emptied or filled without contaminating adjacent chambers. The assembly includes a filler adapter and a releasable closure. The filler adapter is a hollow tubular member having a closure end which matingly engages the open end of the container. The closure end provides plugs and a gasket for sealing all chambers except a single selected chamber. A small opening in the closure end overlies the selected chamber providing fluid communication between the selected chamber and a conical lumen within the filler adapter. The releasable closure provides a leak proof seal between the filler adapter and container. The stem of the funnel or similar device may be placed in the larger opening of the conical lumen and a fluid introduced into the selected chamber. Likewise, fluid may be drained from the selected chamber by simply inverting the container with the filler adapter assembly in place. Plugs in the closure end of the filler adapter occlude the openings of the other chambers, preventing drainage of fluid therefrom, while the larger opening in the conical lumen provides drainage for emptying the desired chamber. An air vent in the filler adapter enables the escape of gas during filling and provides on overflow channel for preventing overfilling the chamber.

    Abstract translation: 用于多功能容器的填充适配器组件。 填充适配器安装在多用户容器的开口端。 填充适配器使得容器内的各个室能够被排空或填充,而不会污染相邻的室。 组件包括填充适配器和可释放的封闭件。 填料适配器是中空管状构件,其具有与容器的开口端配合地接合的封闭端。 封闭端提供塞子和垫圈,用于密封除单个选定腔室之外的所有腔室。 闭合端中的小开口覆盖所选择的腔室,从而提供所选择的腔室与填充适配器内的锥形内腔之间的流体连通。 可释放的封闭件在填料适配器和容器之间提供防漏密封。 漏斗或类似装置的杆可以放置在锥形腔的较大开口中,并将流体引入所选择的室中。 同样地,流体可以通过简单地将填料适配器组件倒置在适当位置而从所选择的室中排出。 插入填充适配器的封闭端部的塞子封闭其他腔室的开口,以防止其中的流体排出,而锥形腔内的较大开口提供用于排空所需腔室的排水。 填充适配器中的通风口可以在填充过程中排出气体,并提供溢流通道以防止过度填充腔室。

    Production of articles from curable compositions
    55.
    发明授权
    Production of articles from curable compositions 失效
    从可固化组合物生产文章

    公开(公告)号:US5133816A

    公开(公告)日:1992-07-28

    申请号:US518439

    申请日:1990-05-03

    CPC classification number: B22C9/103

    Abstract: Complex shapes, e.g. for ceramic cores, can be produced by bonding components with simpler shapes together without the use of glue or cement, thus permitting high precision and avoiding problems caused by excess of cement. The components are formed of curable binder (preferably thermosetting) and a filler (generally a ceramic powder). At least one of the components to be bonded is not completely cured. It is placed in close contact with another component. Heating to cure the uncured component(s) gives a bonded assembly which is then fired.

    Method of casting using non-silica based ceramic cores for castings
    56.
    发明授权
    Method of casting using non-silica based ceramic cores for castings 失效
    使用非二氧化硅基陶瓷芯铸造的方法

    公开(公告)号:US4572272A

    公开(公告)日:1986-02-25

    申请号:US526490

    申请日:1983-08-25

    Applicant: David Mills

    Inventor: David Mills

    CPC classification number: B22C1/00 B22C9/105

    Abstract: Cores made from Alumina and other non-Silica based refractories can be made readily leachable in fused anhydrous caustic alkalis by the addition to the core of a small quantity of a material containing a Hydrogen donor group. The Hydrogen donor group is one which produces uncombined, or nascent Hydrogen when the ceramic is contacted with the anhydrous caustic alkali. Such groups are Hydroxyl groups, Hydrides or chemically combined water. In one disclosed example Silica which contains traces of water is added to high fired Alumina to provide the Hydrogen donor group. Only 2% to 3% Silica addition is required to make the Alumina readily soluble in the fused alkali.

    Abstract translation: 由氧化铝和其他非二氧化硅基耐火材料制成的芯可以通过加入少量含有氢给体基团的材料的核心,使其易于在熔融的无水苛性碱中浸出。 当陶瓷与无水苛性碱接触时,氢供体基团是产生未结合的或新生的氢。 这些基团是羟基,氢化物或化学结合的水。 在一个公开的实施例中,将含​​有微量水的二氧化硅加入高烧氧化铝中以提供氢供体基团。 只需要2%至3%的二氧化硅添加即可使氧化铝容易溶于熔融的碱。

    Dissolving ceramic materials
    57.
    发明授权
    Dissolving ceramic materials 失效
    溶解陶瓷材料

    公开(公告)号:US4569384A

    公开(公告)日:1986-02-11

    申请号:US526489

    申请日:1983-08-25

    Applicant: David Mills

    Inventor: David Mills

    CPC classification number: B22D29/002

    Abstract: Ceramic core materials are selectively dissolved from light metal, e.g. Aluminium or light alloy, e.g. Aluminium alloy castings which are themselves susceptible to attack by caustic alkali solutions, by providing the core material with a substance containing Hydrogen donor group which is capable of producing nascent hydrogen and contacting the core with fused anhydrous caustic alkalis. By this means Silica cores can be removed from Aluminium alloy castings, or a ceramic containing a hydrogen donor group can be selectively dissolved from one that does not, e.g. a Silica disposable pattern from within an Alumina mould containing an integral Alumina core.

    Abstract translation: 陶瓷芯材料从轻金属,例如, 铝或轻合金,例如 铝合金铸件本身易受苛性碱溶液侵蚀,通过为核心材料提供一种能够产生新生氢并使核心与熔融的无水苛性碱接触的氢供体基团的物质。 通过这种方式,可以从铝合金铸件中除去二氧化硅芯,或者含有氢供体基团的陶瓷可以从不具有例如氢氧化铝的物质中选择性地溶解。 含有一个整体氧化铝核心的氧化铝模具内的二氧化硅一次性图案。

    Mould assembly for casting metal articles and a method of manufacture
thereof
    58.
    发明授权
    Mould assembly for casting metal articles and a method of manufacture thereof 失效
    用于铸造金属制品的模具组件及其制造方法

    公开(公告)号:US4552197A

    公开(公告)日:1985-11-12

    申请号:US509813

    申请日:1983-06-30

    Applicant: David Mills

    Inventor: David Mills

    CPC classification number: B22C9/04 B22C9/08 B22C9/20

    Abstract: The invention relates to a mould assembly including a plurality of individual moulds. The mould assembly of the present invention is made by separately transfer moulding a starter base 16, a plurality of moulds 12, a downpole 14 and pouring cup 19, providing each with mechanical locking features, such as screw threads, and joining them together into the assembly. Much greater flexibility is thereby achieved in materials and wall thicknesses, which can be different in different parts of the assembly to suit strength and heat transfer requirements, individual bits can be replaced, and the transfer moulding produces a compact homogeneous ceramic structure.

    Abstract translation: 本发明涉及包括多个单个模具的模具组件。 本发明的模具组件通过分别传递模制起动器基座16,多个模具12,安装杆14和浇注杯19而制成,每个模具提供机械锁定特征,例如螺纹,并将它们连接在一起 部件。 因此,在组件的不同部分可以不同的材料和壁厚度上实现了更大的灵活性,以适应强度和热传递要求,可以替换各个钻头,并且传递模制产生紧凑的均匀陶瓷结构。

    Mould assembly for casting metal articles
    59.
    发明授权
    Mould assembly for casting metal articles 失效
    铸造金属制品用模具总成

    公开(公告)号:US4516621A

    公开(公告)日:1985-05-14

    申请号:US365047

    申请日:1982-04-02

    CPC classification number: B22C9/04 B22C9/20

    Abstract: In a mould assembly for multiple castings each mould is fed from a source of molten metal through a thin slit the width of which lies in the range 1.25 mm to 0.25 mm. The cast articles can be easily removed from the runner and riser system after casting without a machining operation so that the casting moulds can be packed closer together and more castings can be produced from each mould assembly. The thin slit also acts as a filter. A particular mould assembly seen in FIG. 2 is cylindrical and comprises a plurality of wedge-shaped mould segments 2 having mould cavities 4 in abutting faces. A central runner passage 6 is formed when the mould segments are assembled and the metal flows into the mould cavities through narrow slits 10 in one edge of each mould. After casting and removal of the mould the narrow flashing formed in the slits can be easily broken to remove the cast articles from the metal formed in the central runner passage.

    Abstract translation: 在用于多个铸件的模具组件中,每个模具从熔融金属源通过宽度为1.25mm至0.25mm的薄狭缝进给。 在不进行加工操作的铸造之后,铸造制品可以容易地从流道和立管系统中移除,使得铸模可以被更紧密地包装在一起,并且可以从每个模具组件产生更多的铸件。 薄缝也充当过滤器。 图1中所示的特定模具组件。 图2是圆柱形的并且包括多个楔形模具段2,其具有邻接面中的模腔4。 当模具段被组装并且金属通过每个模具的一个边缘中的狭窄狭缝10流入模具腔体时形成中心流道通道6。 在铸造和移除模具之后,可以容易地破裂形成在狭缝中的窄闪光,以从铸造中心流道中形成的金属去除铸造制品。

    Mould insulation
    60.
    发明授权
    Mould insulation 失效
    模具绝缘

    公开(公告)号:US4186222A

    公开(公告)日:1980-01-29

    申请号:US896211

    申请日:1978-04-13

    CPC classification number: B22C9/04

    Abstract: A method of insulating a shell mould for investment casting by adhering a particulate or fibrous insulator such as perlite, vermiculite or ceramic fibres to a shell mould by an adherent coating. In a preferred process the shell mould is first dipped into the adherent coating and the particulate insulator is applied to the mould through a stuccoing process. Multiple layers of insulation can be applied to the mould to vary the thickness of insulation as required.

    Abstract translation: 通过粘附涂层将颗粒状或纤维状绝缘体如珍珠岩,蛭石或陶瓷纤维粘附在壳模上,使用于熔模铸造的壳模绝缘的方法。 在优选的方法中,首先将壳模浸入粘附涂层中,并且通过灰泥过程将颗粒绝缘体施加到模具上。 可以将多层绝缘层施加到模具上以根据需要改变绝缘层的厚度。

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