The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2015
Filed:
Jun. 29, 2012
Applicant:
Kazunori Ishikawa, Osaka, JP;
Inventor:
Kazunori Ishikawa, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D04H 1/728 (2012.01); D01D 5/04 (2006.01); B29C 47/00 (2006.01); D01D 5/00 (2006.01);
U.S. Cl.
CPC ...
B29C 47/0076 (2013.01); D01D 5/0076 (2013.01); D01D 5/0092 (2013.01); D04H 1/728 (2013.01);
Abstract
A collector device of a non-woven fabric manufacturing apparatus electrostatically attracts and stacks fibers charged at a first electrical polarity on a front surface of a base sheet. The collector device comprises an electrode disposed to face a back surface of the base sheet at a distance, the electrode is supplied with a voltage having a second electrical polarity opposite to the first electrical polarity or grounded, and a plurality of charge holding members positioned between the base sheet and the electrode. The charge holding members serially come in contact with and get away from the back surface of the base sheet at random.