US 9,004,291 B2Granted

Fluid filter

AssigneeToyota Boshoku Kabushiki Kaisha

InventorsYasuhiro Saito, Haruaki Sakata, Toshiaki Mori

Life of this patent

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Abstract

A fluid filter including: an upper case member having a flow outlet; a lower case member having a flow inlet; a filter element having a folded filter material and a holding frame which holds the circumferential part of the filter material and is sandwiched between the upper case member and the lower case member; and a reinforcing member provided to extend in a direction crossing the ridge line direction of the folds of the filter material, the reinforcing member is provided in such a manner that, when the height of the folds is defined as h1, the lower end thereof is positioned above a position of 0.6 h1 from the upper end of the folds.

Claims11

Dependent claims

A fluid filter comprising:

an upper case member having a flow outlet;
a lower case member having a flow inlet;
a filter element having a folded filter material and a holding frame which holds the circumferential part of the filter material and is sandwiched between the upper case member and the lower case member;
a reinforcing member extending in a direction transverse to the ridge line direction of the folds of the filter material and engaging the filter material from above the folds, the reinforcing member extending from one end of the filter material to an other end of the filter material, and
a gap provided between the reinforcing member and an upper end of the folds when the reinforcing member is engaged with the filter material from above,
wherein the reinforcing member is configured such that, when the height of the folds is defined as h1, the lower end of the reinforcing member is positioned above a position of 0.6 h1 from the upper end of the folds.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/523,002Filed 14 Jun 2012
Priority: JP 2011-1486354 Jul 2011
Published: US 2013/0008845 A110 Jan 2013
Granted: 14 Apr 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

B01D 29/07
Supported: with corrugated, folded or wound filtering sheets
B01D 46/0002
Filters or filtering processes specially modified for separating dispersed particles from gases or vapours: casings; Housings; Frame constructions
B01D 46/10
Filters or filtering processes specially modified for separating dispersed particles from gases or vapours: particle separators, e.g. dust…
B01D 46/521
Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material: using folded, pleated material

Family

US 2013/0008845 A1Pre-grant publication · published 10 Jan 2013
US 9,004,291 B2This patent

From the US filing history. Foreign family members aren’t listed.

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