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    • 5. 发明授权
    • Vacuum type circuit breaker
    • 真空式断路器
    • US4419553A
    • 1983-12-06
    • US336433
    • 1981-12-31
    • Masayuki OhshitaToshiaki HoriuchiTakashi YamanakaYoshihiro Usui
    • Masayuki OhshitaToshiaki HoriuchiTakashi YamanakaYoshihiro Usui
    • H01H33/66H01H33/666H01H33/00
    • H01H33/666H01H2001/5827H01H2033/6667H01H33/668
    • A vacuum type circuit breaker which has an operating lever (31) connected at one end thereof to the movable electrode (102) of a vacuum switch tube (1) and at the other end to a closing spring (55) through an energy storage link mechanism (54). The operating lever (31) functions to drive the movable electrode (102). The energy storage link mechanism (54) is provided with an energy storage crank (52) pivotally supported on a shaft (2051). The force which the energy storage link mechanism (54) applies to the operating lever (31) is set such that it is less than a force on the operating lever (31) which is produced by the difference between the internal pressure of the vacuum switch tube (1) and atmospheric pressure. This arrangement makes it possible, upon occurrence of vacuum loss, to detect the vacuum shortage, whereupon the closing of the switch is prevented to thereby avoid an accident due to vacuum degradation.
    • 一种真空式断路器,其具有在其一端连接到真空开关管(1)的可动电极(102)的操作杆(31),另一端通过能量存储连杆 机构(54)。 操作杆(31)用于驱动可动电极(102)。 能量存储连杆机构(54)设置有枢转地支撑在轴(2051)上的储能曲柄(52)。 能量存储连杆机构54施加到操作杆31的力被设定为小于由真空开关的内部压力之间的差异产生的操作杆(31)上的力 管(1)和大气压力。 这种布置使得在发生真空损失时可以检测真空不足,从而防止开关的闭合,从而避免由于真空劣化而引起的事故。
    • 9. 发明授权
    • Process for producing non-scattering hollow plastic balloons
    • 生产非散射中空塑料气球的方法
    • US5753156A
    • 1998-05-19
    • US675799
    • 1996-07-05
    • Yoshihiro ShigemoriOsamu SaitoYoshihiro Usui
    • Yoshihiro ShigemoriOsamu SaitoYoshihiro Usui
    • B01J13/02C08J9/22
    • B01J13/02
    • A process for producing non-scattering hollow plastic balloons which comprises: (a) heating a mixture (A) of non-foamed plastic balloons and a first wetting agent, which is a plasticizer, to a temperature from 40.degree. C. to a temperature which is 40.degree. C. below an exit temperature of a heat exchanger, (b) contacting the mixture (A) with a second wetting agent being heated to a temperature equal to or above the foaming starting temperature of the non-foamed plastic balloons, wherein a ratio of the mixture (A) to the second wetting agent (B) is 1:0.5 to 1:1.5, the contacting being within 1 minute after heating the mixture (A) by the heat exchanger to a temperature ranging from 20.degree. to 50.degree. C. below the foaming starting temperature of the non-foamed plastic balloons, (c) foaming the non-foamed plastic balloons, and (d) cooling the resultant mixture from step (c) containing the foamed plastic balloons. Non-scattering foamed plastic balloons can thus be obtained simultaneously with the foaming. The present process needs a smaller amount of a plasticizer than the conventional process of wetting foamed plastic balloons with a plasticizer.
    • 一种制造非散射中空塑料球的方法,包括:(a)将非发泡塑料球的混合物(A)和作为增塑剂的第一润湿剂加热至40℃至 其在热交换器的出口温度以下为40℃,(b)使混合物(A)与加热至等于或高于非泡沫塑料气囊的起泡温度的温度的第二润湿剂接触, 其中混合物(A)与第二润湿剂(B)的比例为1:0.5至1:1.5,接触在通过热交换器将混合物(A)加热至20℃之后的1分钟内 至低于非发泡塑料球泡的发泡起始温度至50℃,(c)使非发泡塑料球泡沫发泡,和(d)从含有发泡塑料球的步骤(c)中冷却得到的混合物。 因此,可以与发泡同时获得非散射的泡沫塑料气囊。 与使用增塑剂润湿发泡塑料球的常规方法相比,本方法需要更少量的增塑剂。