Embedded piezoelectric resonator
    2.
    发明授权
    Embedded piezoelectric resonator 失效
    嵌入式压电谐振器

    公开(公告)号:US6093997A

    公开(公告)日:2000-07-25

    申请号:US128124

    申请日:1998-08-03

    Abstract: A piezoelectric resonator (12) is embedded within an electrically insulating substrate assembly (36), such as a multilayer printed circuit board. Electrical conductors (22,24) extend from electrodes of the resonator (12) through holes (32) in upper and lower layers (26,29) of the substrate assembly (36) and connect to electrical traces (34). The lower layer (29) has a pocket which forms a cavity (38) within the substrate assembly (36) adapted to contain the piezoelectric resonator (12). The conductors (22,24) support the resonator (12) such that the resonator (12) does not contact the assembly (36). As the resonator is substantially larger than associated electrical components, embedding it within a substrate eliminates the size penalty that is normally required to mount a large piezoelectric resonator.

    Abstract translation: 压电谐振器(12)嵌入电绝缘基板组件(36)内,例如多层印刷电路板。 电导体(22,24)从谐振器(12)的电极通过衬底组件(36)的上层和下层(26,29)中的孔(32)延伸并连接到电迹线(34)。 下层(29)具有在适于容纳压电谐振器(12)的衬底组件(36)内形成空腔(38)的口袋。 导体(22,24)支撑谐振器(12),使得谐振器(12)不接触组件(36)。 由于谐振器基本上大于相关联的电气部件,将其嵌入衬底中消除了安装大压电谐振器通常需要的尺寸损失。

    Bobbin assembly for a sleeve dispensing toilet seat
    3.
    发明授权
    Bobbin assembly for a sleeve dispensing toilet seat 失效
    用于套筒分配马桶座圈的梭芯组件

    公开(公告)号:US07003814B2

    公开(公告)日:2006-02-28

    申请号:US10307041

    申请日:2002-11-27

    CPC classification number: A47K13/145 A47K13/22 A47K13/24

    Abstract: A bobbin assembly is provided that is suitable for dispensing webbed material using a power driven coupling in a toilet seat assembly having a housing with wall portions. The bobbin assembly comprises an extruded thermoplastic hollow tube having a plurality of splines disposed longitudinally therein and an end cap assembly adapted for connection to the wall portion. The splines are constructed and arranged in mating inter-engagement with the power driven coupling. The end coupling is spring biased toward the hollow tube to mate with the hollow tube. The bobbin assembly allows for identical supply and take-up bobbins.

    Abstract translation: 提供一种线轴组件,其适于使用具有带有壁部的壳体的马桶座组件中的动力驱动联接器来分配网状材料。 筒管组件包括挤出的热塑性中空管,其具有纵向设置的多个花键和适于连接到壁部的端帽组件。 花键构造和布置成与动力驱动联轴器配合互锁。 端部联接件朝向中空管弹簧偏压以与中空管配合。 线轴组件允许相同的供应和卷绕线轴。

    Piezoelectric resonator using sacrificial layer and method of tuning same
    4.
    发明授权
    Piezoelectric resonator using sacrificial layer and method of tuning same 失效
    使用牺牲层的压电谐振器及其调谐方法

    公开(公告)号:US06249074B1

    公开(公告)日:2001-06-19

    申请号:US08918616

    申请日:1997-08-22

    CPC classification number: H03H3/04 H03H2003/0428

    Abstract: A piezoelectric resonator (10) having a sacrificial mass-loading layer (16). Material is removed from the mass-loading layer (16) to raise a resonator frequency to a desired target. The sacrificial layer (16) is of a dense material, such as silver or gold, but is of such a relative thin layer that it can be used on high frequency aluminum electrodes (14) of a resonator (10) without increasing adverse spurious frequency problems. It is not necessary that the mass-loading layer (16) be conductive. In addition, the silver or gold sacrificial layer (16) can be removed by ion milling at practical and economical rates, unlike aluminum or aluminum oxide. Preferably, a diffusion barrier (18) is interposed between the electrodes (14) and the mass-loading layer (16).

    Abstract translation: 一种具有牺牲质量加载层(16)的压电谐振器(10)。 将材料从质量加载层(16)移除,以将谐振器频率提高到期望的目标。 牺牲层(16)具有诸如银或金的致密材料,但是具有这样的相对薄的层,其可以在谐振器(10)的高频铝电极(14)上使用,而不增加不利的杂散频率 问题。 质量加载层(16)不必导电。 此外,与铝或氧化铝不同,银或金牺牲层(16)可以通过离子铣削以实际和经济的速率除去。 优选地,在电极(14)和质量加载层(16)之间插入扩散阻挡层(18)。

    Electrode edge wave patterns for piezoelectric resonator
    5.
    发明授权
    Electrode edge wave patterns for piezoelectric resonator 失效
    压电谐振器的电极边缘波形图

    公开(公告)号:US5903087A

    公开(公告)日:1999-05-11

    申请号:US920442

    申请日:1997-08-29

    CPC classification number: H03H9/132

    Abstract: A resonator (104) including a piezoelectric plate (102) with an electrode (108) having a random pattern (100) along a portion of an edge of the electrode (108). The random pattern (100) dampens or destructively interferes with undesirable and inharmonic vibrational modes. For example, a rectangular AT-cut quartz resonator, which vibrates in a thickness-shear mode may also possess undesirable flexure and face-shear modes. These modes not only present undesirable spurious frequencies, they also change over temperature, disturbing a frequency-ternperature response of the resonator. The random pattern (100) causes diffuse and/or specular scattering to reduce these undesirable modes, providing a more uniform frequency-temperature response which is beneficial in temperature compensated crystal oscillator applications.

    Abstract translation: 一种谐振器(104),包括具有电极(108)的压电板(102),所述电极具有沿所述电极(108)的边缘部分的随机图案(100)。 随机图案(100)抑制或破坏性地干扰不期望的和不协调的振动模式。 例如,以厚度剪切模式振动的矩形AT切割石英谐振器也可能具有不期望的弯曲和面剪切模式。 这些模式不仅存在不期望的杂散频率,它们也随温度变化,从而扰乱谐振器的频率 - 温度响应。 随机图案(100)引起扩散和/或镜面散射以减少这些不期望的模式,提供更均匀的频率 - 温度响应,这在温度补偿晶体振荡器应用中是有益的。

    Piezoelectric resonator with an attenuated spurious response
    7.
    发明授权
    Piezoelectric resonator with an attenuated spurious response 失效
    具有衰减杂散响应的压电谐振器

    公开(公告)号:US5495135A

    公开(公告)日:1996-02-27

    申请号:US310026

    申请日:1994-09-21

    CPC classification number: H03H9/56 H04R17/10

    Abstract: A piezoelectric resonator (10) with an attenuated spurious response. The resonator (10) includes a piezoelectric crystal plate (12) having opposite surfaces (14, 16), an electrode (18, 24) positioned and overlying relationship on each of the opposite surfaces (14, 16), the electrodes (18, 24) being substantially coextensive and opposite, and providing a primary frequency mode of operation and spurious modes upon suitable energization, and a number of mass loading structures (34) on at least one of the surfaces (14, 16) substantially surrounding at least one of the electrodes (18, 24).

    Abstract translation: 具有衰减的杂散响应的压电谐振器(10)。 谐振器(10)包括具有相对表面(14,16)的压电晶体板(12),在每个相对表面(14,16)上定位和覆盖关系的电极(18,24),电极 24)基本上共同延伸且相反,并且在合适的通电时提供主要频率操作模式和寄生模式,并且在至少一个表面(14,16)上的多个质量加载结构(34)基本上围绕至少一个 的电极(18,24)。

    Hybrid Power Supply Unit For Audio Amplifier

    公开(公告)号:US20190067958A1

    公开(公告)日:2019-02-28

    申请号:US16104787

    申请日:2018-08-17

    Abstract: A system and method for using a circuit for providing power from one or more battery packs charged by a AC-mains-provided electrical connection and which supply power to a hi-power, non-portable audio amplifier. The system includes a power supply sized to satisfy long time-basis average demands, a battery pack and with a controller which buffers or back-ends a power supply which is not otherwise capable of satisfying the variable load peak demands that an audio source imposes on the amplifier, while still maintaining a substantially constant battery charge over an extended period of time.

    Low maintenance hygienic toilet seat
    10.
    发明授权
    Low maintenance hygienic toilet seat 失效
    低维护卫生马桶座

    公开(公告)号:US06966076B2

    公开(公告)日:2005-11-22

    申请号:US10306987

    申请日:2002-11-27

    CPC classification number: A47K13/145 A47K13/22 A47K13/24

    Abstract: A toilet seat assembly for mounting to the toilet bowl can be assembled and disassembled by aligning vanous components of the assembly at predetermined angles with respect to one another. The toilet seat assembly includes a housing defining a cavity for receiving a sleeve dispensing apparatus and a pair of mounting forks. The housing is rotatable between a predetermined assembly angle position where the housing can be installed or removed from the pair of mounting forks and positions beyond the assembly angle where the housing is securely seated within the pair of mounting forks.

    Abstract translation: 用于安装到马桶的马桶座组件可以通过将组件的多个零件相对于彼此以预定角度对齐而组装和拆卸。 马桶座组件包括限定用于容纳套筒分配装置和一对安装叉的空腔的壳体。 壳体可以在预定的组装角度位置之间旋转,其中壳体可以从一对安装叉安装或移除,并且超过壳体在该对安装叉中牢固地安置的组装角度的位置。

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