Retainer for filters, and leaf disc filter element
AssigneeFuji Filter Manufacturing Co., Ltd.
InventorToshiaki Takano
Life of this patent
Estimating the term…
Abstract
The retainer includes a first metal plate member 10A or 40A in which flow-path forming members having a predetermined curved shape or a linear shape are arranged on the same plane in parallel to each other at a predetermined interval to form a donut shape as a hole, and a second metal plate member 10B or 40B having a configuration equivalent to that of the first metal plate member, wherein crossings of the flow-path forming members configuring the respective metal plate members are fixed with the second metal plate member stacked on the first metal plate member, and the flow-path forming members 15A or 50A configuring the first metal plate member and the flow-path forming members 15B or 50B configuring the second metal plate member form a line symmetric shape in plan view.
Claims4
A retainer for filters comprising:
- a first metal plate member in which a plurality of flow-path forming members having a predetermined curved shape or a linear shape in plan view are arranged on a same plane in parallel to each other with a predetermined interval to form a donut shape as a whole;
- and
- a second metal plate member having a configuration equivalent to that of the first metal plate member, wherein
- crossings of the flow-path forming members constituting the respective metal plate members are fixed while one surface of the second metal plate member is stacked on one surface of the first metal plate member, and
- the flow-path forming members constituting the first metal plate member and the flow-path forming members constituting the second metal plate member form a linear symmetric shape in plan view,
- wherein first flow-paths formed between each of flow-path forming members constituting the first metal plate member and second flow-paths formed between each of flow-path forming members constituting the second metal plate member form the first and second flow-paths which penetrate the retainer in a curved manner from an outermost circumferential edge to an innermost circumferential edge of the first metal plate member and second metal plate member of the retainer with no obstacles respectively for a flow resistance of a melted resin as opposed to third flow-paths and fourth flow-paths formed in a zigzag manner, or
- wherein fifth flow-paths formed between each of flow-path forming members constituting the first metal plate member and sixth flow-paths formed between each of flow-path forming members constituting the second metal plate member form the fifth and sixth flow-paths which penetrate the retainer in a straight manner from the outermost circumferential edge to the innermost circumferential edge of the first metal plate member and second metal plate member of the retainer with no obstacles respectively for the flow resistance of the melted resin as opposed to seventh flow-paths, eighth flow-paths and nineth flow-paths formed in the zigzag manner.
Dependencies are inferred from the claim text.