초록 ▼

An air filter element consists of an annularly arranged pleated filter medium having a plurality of radially extending pleats. Two sides or legs of each pleat are bonded to each other at the outer peripheral side to form an outer bonded section while one sides or legs of the adjacent pleats are bond

An air filter element consists of an annularly arranged pleated filter medium having a plurality of radially extending pleats. Two sides or legs of each pleat are bonded to each other at the outer peripheral side to form an outer bonded section while one sides or legs of the adjacent pleats are bonded to each other at the inner peripheral side to form an inner bonded section, thereby forming a fluid path extending between the adjacent pleats along the length of each pleat. Additionally, outer and inner resilient seal members are so provided that a part of each outer bonded section is embedded in the outer seal member while a part of each inner bonded section is embedded in the inner sealing member.

대표청구항 ▼

A fluid filter for an automotive engine, comprising a filter element including a pleated filter medium having a plurality of pleats, said plurality of pleats defining adjacent pairs of first and second pleats, each pleat having first and second sides which are integrally connected through a first sc

A fluid filter for an automotive engine, comprising a filter element including a pleated filter medium having a plurality of pleats, said plurality of pleats defining adjacent pairs of first and second pleats, each pleat having first and second sides which are integrally connected through a first score line with each other to form an upwardly-pointing pleat portion, the second side of said first pleat and the first side of said second pleat being integrally connected through a second score line with each other to form a downwardly-pointing pleat portion, each pleat side having oppositely located first and second end sections which have first and second edges, respectively, which extend substantially perpendicular to each score line, the first end sections of said first and second sides of each pleat being approached and bonded to each other to form a plurality of first bonded sections, the second end section of said first pleat second side and the second end section of said second pleat first side, of said adjacent pairs of first and second pleats, being approached and bonded to each other to form a plurality of second bonded sections.