Title:
フィルタプリーツのための周期的放射対称構成
Document Type and Number:
Japanese Patent JP7274484
Kind Code:
B2
Abstract:
A cylindrical filter element having a central longitudinal axis and filter media including a plurality of radially extending pleats arranged in a pattern that repeats around the central longitudinal axis. Each of the pleats comprises an inner pleat tip, wherein the inner pleat tips of each pattern define an open area that extends along a height of the filter element, and wherein each pattern of pleats comprises a first series of intermediate pleats that descends in length from a major pleat to a minor pleat and a second series of intermediate pleats that ascends in length from the minor pleat to a major pleat of an adjacent pattern of pleats.
Inventors:
Substorm, Jacob Curtis
Application Number:
JP2020530964A
Publication Date:
May 16, 2023
Filing Date:
December 06, 2018
Export Citation:
Assignee:
Donaldson Company, Inc.
International Classes:
B01D29/07; B01D39/16; B01D46/52
Domestic Patent References:
| JP61015021U | ||||
| JP2001104716A | ||||
| JP62083522U | ||||
| JP2009136733A | ||||
| JP52125170U | ||||
| JP10244104A | ||||
| JP2006512187A |
Foreign References:
| DE4345130C2 | ||||
| SU436668A | ||||
| US2627350 |
Attorney, Agent or Firm:
Patent Attorney Corporation Otsuka International Patent Office
Yasunori Otsuka
Yasuhiro Ohtsuka
Shiro Takayanagi
Shuji Kimura
Yasunori Otsuka
Yasuhiro Ohtsuka
Shiro Takayanagi
Shuji Kimura
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