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    • 1. 发明授权
    • Method of making filter elements for gas or liquid
    • 制造气体或液体的过滤元件的方法
    • US4196027A
    • 1980-04-01
    • US915339
    • 1978-06-13
    • Brian WalkerGeorge S. HunterSusanne P. Hunter
    • Brian WalkerGeorge S. HunterSusanne P. Hunter
    • B01D27/04B01D29/11B01D39/14B01D46/00B01D46/24B32B3/10
    • B01D46/0001B01D27/04B01D29/111B01D39/14B01D46/2403B01D2201/0415B01D2275/10Y10T428/24289Y10T428/24347Y10T428/24851
    • A filter element for gas or liquid comprises a layer of glass, ceramic, metal, mineral wool or organic fibres containing, wholly within the layer, an apertured sheet, for example of steel or aluminum, the fibres being bound to one another throughout the layer and through the apertures, as well as to the sheet itself, by a synthetic resin such as silicone resin or polyurethane. The filter element is formed by mounting the apertured sheet a selected distance above a filter surface on which the fibres build up while a slurry containing the fibres is drained through the filter surface. When the fibres have built up to a predetermined distance above the sheet, the fibres containing the sheet are removed and the assembly impregnated with a synthetic resin and cured. Two or more grades of slurry mixture may be used in succession to produce a density grading through the thickness of the fibrous layer. In the case of cylindrical elements, end caps are fitted and made fluid tight by a synthetic resin, a taper fit or a gasket.
    • 用于气体或液体的过滤元件包括一层玻璃,陶瓷,金属,矿棉或有机纤维,其中完全在该层内包含多孔板,例如钢或铝,所述纤维在整个层中彼此结合 并且通过诸如硅树脂或聚氨酯的合成树脂通过孔以及片本身。 过滤元件通过将有孔的片材安装在纤维积聚的过滤器表面上方的选定距离上,同时含有纤维的浆料排出过滤器表面而形成。 当纤维已经建立到片材上方预定距离时,除去包含片材的纤维,并将组合物浸入合成树脂中并固化。 可以连续使用两种或更多种浆料混合物以通过纤维层的厚度产生密度分级。 在圆柱形元件的情况下,端盖通过合成树脂,锥形配合或垫圈装配并制成流体密封。
    • 2. 发明授权
    • Filters for liquids or gases
    • 液体或气体过滤器
    • US4130487A
    • 1978-12-19
    • US784320
    • 1977-04-04
    • George S. HunterSusanne P. HunterBrian Walker
    • George S. HunterSusanne P. HunterBrian Walker
    • B01D27/06B01D35/143B01D39/20B01D46/24B01D46/44B01D46/52B01D53/02B01D46/02
    • B01D46/521B01D27/06B01D35/143B01D39/18B01D39/2024B01D39/2055B01D39/2079B01D46/0095B01D46/24B01D46/44B01D2239/065B01D2239/0654B01D2239/086B01D2239/1225B01D2239/1233
    • Filter elements are described in which a pleated cylindrical sheet of non-woven microporous glass fibre filter material impregnated with a binder, which may be silicone, polyurethane, phenolic resin or epoxy resin, is mounted in contact with a cylindrical supporting sheet of, for example, expanded metal for maintaining the filter material against shock pressure loads. To protect the filter material during assembly a porous layer of protective material may be interposed between the filter material and the supporting cylinder. The supporting cylinder may be a simple cylinder or pleated so as to fit the filter material. An activated carbon layer for removing odors during air filtration may be added to the filter material. When the air contains oil mist, a layer containing dye that will be taken up by the oil and discolor the filter element as a warning indication that the filter has become saturated, may be interposed between the filter material and the activated carbon layer. The filter material may comprise an organic binder holding together borosilicate glass fibres, this amorphous mass being further impregnated by a synthetic resin binder. The filter material may consist of a glass fibre filter paper with a further layer of non-woven material secured thereto by a synthetic resin binder.
    • 描述了过滤元件,其中浸渍有粘合剂(其可以是硅树脂,聚氨酯,酚醛树脂或环氧树脂)的无纺微孔玻璃纤维过滤材料的褶皱圆柱形片材安装成与例如圆柱形支撑片材接触 ,用于保持过滤材料抵抗冲击压力负载的膨胀金属。 为了在组装期间保护过滤材料,保护材料的多孔层可以插入在过滤材料和支撑筒之间。 支撑筒可以是简单的圆柱体或打褶的,以适合过滤材料。 可以在过滤材料中添加用于在空气过滤期间除去气味的活性炭层。 当空气含有油雾时,含有染料的层将被油吸收并使过滤元件变色,作为过滤器已饱和的警告指示,可以介于过滤材料和活性炭层之间。 过滤材料可以包含保持硼硅酸盐玻璃纤维一起的有机粘合剂,该无定形物料被合成树脂粘合剂进一步浸渍。 过滤材料可以由具有通过合成树脂粘合剂固定到其上的另外的无纺材料层的玻璃纤维滤纸组成。
    • 5. 发明授权
    • Impedance measurement in an active radio frequency transmitter
    • 有源射频发射机中的阻抗测量
    • US08452245B2
    • 2013-05-28
    • US13412661
    • 2012-03-06
    • Brian Walker
    • Brian Walker
    • H03C1/62
    • H04B1/0458H04B17/10
    • A transmitter and method for determining impedance measurement in an active radio frequency transmitter of an antenna are provided. Voltage and current samples are obtained from a modulating signal delivered to an antenna. The voltage and current samples are converted from analog to digital format, and decimation occurs to reduce the number of samples. Complex demodulation is performed of each of the voltage and current samples to baseband levels and decimation of the voltage and current samples is performed to reduce the number of samples. An impedance estimate can then be estimated from the voltage and current samples.
    • 提供了一种用于确定天线的有源射频发射机中的阻抗测量的发射机和方法。 从传送到天线的调制信号获得电压和电流采样。 电压和电流样本从模拟转换为数字格式,并进行抽取以减少样本数量。 执行每个电压和电流采样到基带电平的复杂解调,并执行电压和电流采样的抽取以减少样本数量。 然后可以从电压和电流样本估计阻抗估计。
    • 8. 发明授权
    • Impedance measurement in an active radio frequency transmitter
    • 有源射频发射机中的阻抗测量
    • US08213885B2
    • 2012-07-03
    • US12421519
    • 2009-04-09
    • Brian Walker
    • Brian Walker
    • H03C1/62
    • H04B1/0458H04B17/10
    • A transmitter and method for determining impedance measurement in an active radio frequency transmitter of an antenna are provided. Voltage and current samples are obtained from a modulating signal delivered to an antenna. The voltage and current samples are converted from analog to digital format, and decimation occurs to reduce the number of samples. Complex demodulation is performed of each of the voltage and current samples to baseband levels and decimation of the voltage and current samples is performed to reduce the number of samples. An impedance estimate can then be estimated from the voltage and current samples.
    • 提供了一种用于确定天线的有源射频发射机中的阻抗测量的发射机和方法。 从传送到天线的调制信号获得电压和电流采样。 电压和电流样本从模拟转换为数字格式,并进行抽取以减少样本数量。 执行每个电压和电流采样到基带电平的复杂解调,并执行电压和电流采样的抽取以减少样本数量。 然后可以从电压和电流样本估计阻抗估计。