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    • 9. 发明授权
    • Filter and a manufacturing method therefor
    • 过滤器及其制造方法
    • US4456531A
    • 1984-06-26
    • US328840
    • 1981-12-09
    • Misao KubotaKazuhiko TeraoKenji Shimada
    • Misao KubotaKazuhiko TeraoKenji Shimada
    • B01D29/48B01D25/20
    • B01D29/48
    • A filter is disclosed which is capable of withstanding repeated use by cleaning. The filter is so constructed that around a frame body is wound a filter wire at a constant slit space of less than 40 with a maximum error of 50%. A method for manufacturing such a filter is also disclosed which comprises winding, on a frame body, a filter wire paired with a spacer wire for keeping the slit space of said filter wire constant in such a manner that each turn is in contact with adjacent turns; and removing the spacer wire alone by chemical or physical means while holding these wires fixed so as to obtain a filter with a smaller slit space error.
    • 公开了一种能够经受清洁重复使用的过滤器。 过滤器被构造成使得围绕框架主体以小于40的恒定狭缝空间缠绕过滤丝,最大误差为50%。 还公开了一种用于制造这种滤波器的方法,其包括在框体上缠绕与间隔线配对的滤波器导线,用于保持所述滤波器线的缝隙保持恒定,使得每个匝与相邻匝接触 ; 并且通过化学或物理手段单独去除间隔物线,同时将这些线固定,以获得具有较小狭缝空间误差的过滤器。