Invention Grant
- Patent Title: Apparatus and methods for modification of electrostatic charge on a moving web
- Patent Title (中): 用于修改移动网上静电荷的装置和方法
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Application No.: US12602692Application Date: 2008-06-03
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Publication No.: US08570703B2Publication Date: 2013-10-29
- Inventor: Richard M. Jendrejack , William B. Kolb , Robert A. Yapel , Peter T. Benson , William R. Dudley , Raghunath Padiyath
- Applicant: Richard M. Jendrejack , William B. Kolb , Robert A. Yapel , Peter T. Benson , William R. Dudley , Raghunath Padiyath
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Julie Lapos-Kuchar
- International Application: PCT/US2008/065624 WO 20080603
- International Announcement: WO2009/002665 WO 20081231
- Main IPC: H05G3/00
- IPC: H05G3/00 ; H01T23/00

Abstract:
Methods and apparatus (40) to neutralize the charge on a moving web (42) by splitting the field present on the web (42). One portion of the field is removed by a grounded element (55a, 55) proximate to, and optionally contacting, one side of the web (42). Proximate the opposite side of the web, the apparatus includes an ion source (57a, 57b, 57c), which provides ions to the web (42) to neutralize the charge remaining on the web (42), and a second grounded element (50a, 50b, 50c) positioned between the ion source (57a, 57b,57c) and the web (42). The methods provide a web (42) that is net neutralized and is also dual-side or bipolar neutralized.
Public/Granted literature
- US20100182728A1 APPARATUS AND METHODS FOR MODIFICATION OF ELECTROSTATIC CHARGE ON A MOVING WEB Public/Granted day:2010-07-22
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