Title:
可変ピッチを有する平坦なエキスパンドメタル、その作製方法、エキスパンドメタルを用いて作製されるフィルタ、及びフィルタを作製する方法
Document Type and Number:
Japanese Patent JP2010504218
Kind Code:
A
Abstract:
Nesting in a metal filter is reduced by using a variable opening pitch expanded metal sheet having different spacings between adjacent rows of openings. Such a filter is made by varying the rate at which the sheet is fed through the equipment, the rate of punching, the amount of stretching, and/or the amount by which the sheet is optionally flattened. The expanded metal sheet is useful in making filters for automobile airbag inflators. Nesting can also be reduced by transversely indexing the punch, using different punch sizes on multiple punches, or combinations of these techniques. The filter can be wire wrapped to enhance its strength.
Inventors:
Greenwood, George
Application Number:
JP2009529381A
Publication Date:
February 12, 2010
Filing Date:
September 20, 2007
Export Citation:
Assignee:
ACS Industries, Inc.
International Classes:
B21D31/04; B21D53/88; B60R21/26
Domestic Patent References:
| JP2005313121A | 2005-11-10 | |||
| JP2003080012A | 2003-03-18 | |||
| JP2002249017A | 2002-09-03 | |||
| JPH06170129A | 1994-06-21 | |||
| JP2000127888A | 2000-05-09 | |||
| JP2002355509A | 2002-12-10 | |||
| JPH0533821U | 1993-05-07 |
Foreign References:
| US20030094799A1 | 2003-05-22 |
Attorney, Agent or Firm:
Kenho Ikeda
Shuichi Fukuda
Shuichi Fukuda