Electromechanical and Solid-State AC Relay with Reduced Arcing
    1.
    发明申请
    Electromechanical and Solid-State AC Relay with Reduced Arcing 有权
    具有减少电弧的机电和固态AC继电器

    公开(公告)号:US20080048807A1

    公开(公告)日:2008-02-28

    申请号:US11834104

    申请日:2007-08-06

    IPC分类号: H01H9/00 H01H51/30

    CPC分类号: H01H9/542 Y10T307/911

    摘要: An electromechanical/solid-state AC relay has an electromechanical winding coil that moves an armature to force mechanical contacts to open or close. Electrical arcing across the mechanical contacts that occur as the contacts are opening or closing can damage and severely reduce the lifetime of the relay. Contact arcing is prevented by pulsing a triac on for a short period of time just before and after the mechanical contacts make or break contact. The triac limits the voltage difference across the mechanical contacts to less than one volt to prevent arcing. The triac is turned off after the mechanical contacts finish moving, reducing the heating and average power through the triac. A zero-sampling circuit that detects when the AC input voltage switches across 0 volts and activates a control integrated circuit to switch on the triac during zero-crossings to minimize power surges.

    摘要翻译: 机电/固态AC继电器具有机电绕组线圈,其使衔铁移动以迫使机械触点打开或关闭。 触头断开或闭合时,机械触头间的电弧会损坏继电器的使用寿命。 通过在机械触点产生或断开触点之前和之后的短时间内脉冲三端双向可控硅开关来防止接触电弧。 三端双向可控硅开关元件将机械触点两端的电压差限制在小于一伏,以防止电弧。 在机械接触完成移动之后,三端双向可控硅开关被关闭,从而降低了通过三端双向可控硅开关元件的加热和平均功率。 一个零采样电路,用于检测交流输入电压何时切换到0伏特,并激活一个控制集成电路,以便在过零时切换到三端双向可控硅开关以最小化功率浪涌。

    Electromechanical and solid-state AC relay with reduced arcing
    2.
    发明授权
    Electromechanical and solid-state AC relay with reduced arcing 有权
    机电和固态交流继电器减少电弧

    公开(公告)号:US07660083B2

    公开(公告)日:2010-02-09

    申请号:US11834104

    申请日:2007-08-06

    IPC分类号: H02H3/00 H02H7/00

    CPC分类号: H01H9/542 Y10T307/911

    摘要: An electromechanical/solid-state AC relay has an electromechanical winding coil that moves an armature to force mechanical contacts to open or close. Electrical arcing across the mechanical contacts that occur as the contacts are opening or closing can damage and severely reduce the lifetime of the relay. Contact arcing is prevented by pulsing a triac on for a short period of time just before and after the mechanical contacts make or break contact. The triac limits the voltage difference across the mechanical contacts to less than one volt to prevent arcing. The triac is turned off after the mechanical contacts finish moving, reducing the heating and average power through the triac. A zero-sampling circuit that detects when the AC input voltage switches across 0 volts and activates a control integrated circuit to switch on the triac during zero-crossings to minimize power surges.

    摘要翻译: 机电/固态AC继电器具有机电绕组线圈,其使衔铁移动以迫使机械触点打开或关闭。 触头断开或闭合时,机械触头间的电弧会损坏继电器的使用寿命。 通过在机械触点产生或断开触点之前和之后的短时间内脉冲三端双向可控硅开关来防止接触电弧。 三端双向可控硅开关元件将机械触点两端的电压差限制在小于一伏,以防止电弧。 在机械接触完成移动之后,三端双向可控硅开关被关闭,从而降低了通过三端双向可控硅开关元件的加热和平均功率。 一个零采样电路,用于检测交流输入电压何时切换到0伏特,并激活一个控制集成电路,以便在过零时切换到三端双向可控硅开关以最小化功率浪涌。

    Wettable silicone hydrogel contact lenses
    4.
    发明授权
    Wettable silicone hydrogel contact lenses 有权
    可湿性硅酮水凝胶隐形眼镜

    公开(公告)号:US09164298B2

    公开(公告)日:2015-10-20

    申请号:US13983577

    申请日:2012-02-23

    IPC分类号: G02C7/04 G02B1/04 C08L83/12

    摘要: Silicone hydrogel contact lenses are formed from the reaction product of a polymerizable composition comprising at least one acrylate-containing siloxane monomer, at least one hydrophilic vinyl-containing monomer, and at least one vinyl-containing cross-linking agent, wherein the polymerizable composition has a molar ratio of total amount of hydrophilic vinyl-containing monomer to total amount of acrylate-containing siloxane monomer of from 5:1 to 30:1, respectively. The silicone hydrogel contact lenses have good manufacturing processability, can be manufactured without the use of alcohol solvents, and have excellent surface wettability.

    摘要翻译: 硅氧烷水凝胶隐形眼镜由包含至少一种含丙烯酸酯的硅氧烷单体,至少一种亲水性含乙烯基单体和至少一种含乙烯基交联剂的可聚合组合物的反应产物形成,其中可聚合组合物具有 亲水性含乙烯基单体的总量与含丙烯酸酯的硅氧烷单体的总量的摩尔比分别为5:1至30:1。 硅酮水凝胶隐形眼镜具有良好的制造加工性,可以在不使用醇溶剂的情况下制造,并且具有优异的表面润湿性。

    Silicone hydrogel contact lenses
    5.
    发明授权
    Silicone hydrogel contact lenses 有权
    硅胶水凝胶隐形眼镜

    公开(公告)号:US09057822B2

    公开(公告)日:2015-06-16

    申请号:US13983774

    申请日:2012-02-23

    摘要: Silicone hydrogel contact lenses that are derived from a polymerizable composition including a first siloxane monomer represented by formula (3): wherein m of formula (3) represents one integer from 3 to 10, n of formula (3) represents one integer from 1 to 10, R1 of formula (3) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (3) is independently either a hydrogen atom or a methyl group; and at least one vinyl ether-containing cross-linking agent are described. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described. In one example, the batches of silicone hydrogel contact lenses are dimensionally stable, and the method of making is a method of making dimensionally stable silicone hydrogel contact lenses.

    摘要翻译: 衍生自包含由式(3)表示的第一硅氧烷单体的可聚合组合物的聚合性组合物的硅氧水凝胶隐形眼镜:式(3)的m表示3〜10的整数,式(3)的n表示1〜 10,式(3)的R 1为碳原子数1〜4的烷基,式(3)的各R 2独立地为氢原子或甲基。 和至少一种含乙烯基醚的交联剂。 还描述了硅胶水凝胶隐形眼镜的批次和制造硅酮水凝胶隐形眼镜的方法。 在一个示例中,硅胶水凝胶隐形眼镜的批次是尺寸稳定的,并且制造方法是制备尺寸稳定的硅酮水凝胶隐形眼镜的方法。

    Silicone Hydrogel Contact Lenses
    6.
    发明申请
    Silicone Hydrogel Contact Lenses 有权
    硅胶水凝胶隐形眼镜

    公开(公告)号:US20140016086A1

    公开(公告)日:2014-01-16

    申请号:US13983774

    申请日:2012-02-23

    IPC分类号: G02C7/04

    摘要: Silicone hydrogel contact lenses that are derived from a polymerizable composition including a first siloxane monomer represented by formula (3): wherein m of formula (3) represents one integer from 3 to 10, n of formula (3) represents one integer from 1 to 10, R1 of formula (3) is an alkyl group having from 1 to 4 carbon atoms, and each R2 of formula (3) is independently either a hydrogen atom or a methyl group; and at least one vinyl ether-containing cross-linking agent are described. Batches of silicone hydrogel contact lenses and methods of making silicone hydrogel contact lenses are also described. In one example, the batches of silicone hydrogel contact lenses are dimensionally stable, and the method of making is a method of making dimensionally stable silicone hydrogel contact lenses.

    摘要翻译: 衍生自包含由式(3)表示的第一硅氧烷单体的可聚合组合物的聚合性组合物的硅氧水凝胶隐形眼镜:式(3)的m表示3〜10的整数,式(3)的n表示1〜 10,式(3)的R 1为碳原子数1〜4的烷基,式(3)的各R 2独立地为氢原子或甲基。 和至少一种含乙烯基醚的交联剂。 还描述了硅胶水凝胶隐形眼镜的批次和制造硅酮水凝胶隐形眼镜的方法。 在一个示例中,硅胶水凝胶隐形眼镜的批次是尺寸稳定的,并且制造方法是制备尺寸稳定的硅酮水凝胶隐形眼镜的方法。

    Polyolefin contact lens molds and uses thereof
    10.
    发明授权
    Polyolefin contact lens molds and uses thereof 有权
    聚烯烃隐形眼镜模具及其用途

    公开(公告)号:US08003024B2

    公开(公告)日:2011-08-23

    申请号:US11855376

    申请日:2007-09-14

    申请人: Li Yao Xuxian Niu

    发明人: Li Yao Xuxian Niu

    IPC分类号: B29D11/00

    摘要: Contact lens molds and methods of producing soft cast-molded contact lens products are provided. The methods include placing a soft hydrophilic contact lens-forming composition in a cavity formed between a first mold member and a second mold member, subjecting the composition in the cavity to conditions effective to form a contact lens product from the composition, and repeating the placing and subjecting steps a plurality of times, thereby producing a plurality of soft contact lens products. At least the first mold members, and advantageously all of the first and second mold members, are injection-molded with a nucleated thermoplastic polyolefin resin having a melt flow rate in a range of 10 g/10 min to about 40 g/10 min.

    摘要翻译: 提供隐形眼镜模具以及生产软质模制隐形眼镜产品的方法。 所述方法包括将柔性亲水性隐形眼镜形成组合物置于形成于第一模具构件和第二模具构件之间的空腔中,使空腔中的组合物经受有效地从组合物形成隐形眼镜产品的条件,并重复放置 并对其进行多次处理,从而产生多个软性隐形眼镜产品。 至少第一模具构件以及有利地所有的第一和第二模具构件都用具有10克/ 10分钟至约40克/ 10分钟范围内的熔体流动速率的成核热塑性聚烯烃树脂注模。