公开(公告)号：US3827566A

公开(公告)日：1974-08-06

申请号：US31264872

申请日：1972-12-06

Applicant: PONCE C

Inventor： PONCE C

IPC: B01D29/00 ,  B01D27/06

CPC classification number: B01D29/58 ,  B01D29/21 ,  B01D2201/0461 ,  B01D2201/12

Abstract: A multi-level, resin-impregnated, pleated, paper product filter assembly having spaced annular arrays of normally stable, pleats resiliently flexible circumferentially, a helical spring circumjacent between adjacent apices of the pleated arrays to resist collapse of paper product filters due to radial forces between adjacent filter levels and providing two-stage filtration in which the outer filter array comprises a filter pore size effecting first stage filtration of generally larger solids foreign matter, and the second or inner filter array provides second stage filtration of relatively finer foreign particles; in which perforated inner and outer cylindrical shells stabilize the filter cartridge or assembly in which the outer shell includes a plurality of spaced circumferentially disposed series of perforations to equalize pressure over the outer surface of the outer filter element; and in which an end cap and resilient seal combine with the outer and inner shells to coaxially clamp and insure against short-circuiting of the liquid being filtered.

Abstract translation: 多层树脂浸渍的打褶纸制品过滤器组件具有间隔开的环形阵列，其具有通常稳定的褶皱，周向弹性地柔性，围绕打褶阵列的相邻顶点之间的螺旋弹簧，以抵抗由于径向力引起的纸制品过滤器的塌陷 在相邻的过滤器水平之间并提供两级过滤，其中外部过滤器阵列包括影响通常较大的固体异物的第一阶段过滤的过滤器孔径，并且第二或内部过滤器阵列提供相对更细的外来颗粒的第二阶段过滤; 其中穿孔的内部和外部圆柱形壳体使过滤器滤芯或组件稳定，其中外部壳体包括多个间隔开的周向布置的一系列穿孔，以平衡外部过滤元件外表面上的压力; 并且其中端盖和弹性密封件与外壳和内壳结合以同轴地夹紧并确保防止被过滤的液体的短路。