Apparatus for electrically charging meltblown webs (B-001)

Details Apparatus for electrically charging meltblown webs (B-001) Apparatus for electrically charging meltblown webs (B-001)

1988-09-15

1990-02-27

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Means applying electrical or wave energy directly to work

Electro-static or inductive field

264 22, 425 722, 425464, B29C 4730, B29C 7104

Patent

active

049041746

ABSTRACT:
Meltblowing apparatus includes electrodes spaced from the meltblowing die discharge and protruding grounded emitters positioned proximate the die discharge. The preferred emitters are in the form of pointed pins spaced along and flanking the die discharge.

REFERENCES:
patent: 2108361 (1938-02-01), Asakawa
patent: 3163753 (1964-12-01), Disabato et al.
patent: 3820929 (1974-06-01), Busby et al.
patent: 3860369 (1975-01-01), Brethauer et al.
patent: 4009508 (1977-03-01), Sternberg
patent: 4215682 (1980-08-01), Kubik et al.
patent: 4375718 (1983-03-01), Wadsworth et al.
patent: 4534918 (1985-08-01), Forrest, Jr.
patent: 4588537 (1986-05-01), Klaase et al.
patent: 4592815 (1986-06-01), Nakao

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