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US 6,743,274 B2Granted
Filter and production method thereof
AssigneeToyoda Boshoku Corporation
InventorTakanari Takagaki
Life of this patent
Estimating the term…
Abstract
A seal member is attached to a peripheral edge portion of a filter body by being fused to semi-melted fibers that form the filter body when the semi-melted fibers are layered over a forming surface. Therefore, the formation of the filter body and the attachment of the seal member can be simultaneously accomplished.
Claims22
A filter comprising:
- a filter body formed by layering semi-melted fibers over a forming surface;
- and
- a seal member attached to a peripheral edge portion of the filter body, by being fused to the semi-melted fibers,
- wherein the seal member has inner and outer peripheral surfaces, and the semi-melted fibers are fused to the inner and outer peripheral surfaces of the seal member.
1 more element
A production method for a filter, comprising:
- disposing a seal member over a forming surface;
- and
- subsequently forming a filter body by layering semi-melted fibers over the forming surface and the seal member.
A production method for a filter according to claim, 10 wherein the member fusable to the semi-melted fibers is a non-woven fabric.
A filter comprising:
- a filter body;
- and
- a seal member fused to a peripheral edge portion of the filter body, by being fused to fibers that form the filter body when the fibers are in a semi-melted state,
- wherein the seal member has inner and outer peripheral surfaces, and the semi-melted fibers are fused to the inner and outer peripheral surfaces of the seal member.
1 more element
A filter comprising:
- a filter body formed by layering semi-melted fibers over a forming surface;
- and
- a seal member attached to a peripheral edge portion of the filter body, by being fused to the semi-melted fibers,
- wherein at least a portion of the forming surface is formed by a member that is fusable to the semi-melted fibers, and at least a portion of the seal member is provided between the semi-melted fibers and the member fusable to the semi-melted fibers.
1 more element
A filter comprising:
- a filter body formed by layering semi-melted fibers over a forming surface;
- a seal member attached to a peripheral edge portion of the filter body, by being fused to the semi-melted fibers;
- and
- a member that is fusable to the semi-melted fibers and that is disposed on the forming surface,
- wherein at least a portion of the seal member is provided between the semi-melted fibers and the member fusable to the semi-melted fibers.
2 more elements
Dependencies are inferred from the claim text.