Unimold filter and method
AssigneeManufacturers Components, Inc.
InventorDaniel J. Chiodo
Life of this patent
Estimating the term…
Abstract
A filter for separating a fluid and particles immixed in the fluid, including a screen formed of a plurality of mutually attached screen panels, each screen panel defined by respective panel edges, and a molded filter frame including a plurality of molded frame members. The panel edges are molded into the molded frame members.
Claims11
Method of making a filter for separating a fluid and particles immersed in the fluid, the filter formed as a frusto cone, having a plurality of molded frame members attached to said filter, the method comprising the steps of:
- a) cutting with a cutting die a filter screen from a piece of filter material;
- b) cutting with a cutting die a plurality of rows of holes in said filter screen, the plurality of rows of holes being aligned with said molded frame members;
- c) forming with a forming die said filter screen into a frusto-conical filter basket;
- and
- d) forming the filter with an injection mold, having cavities for making said molded frame members, said filter being made by molten frame member matter flowing into said holes to form a bond between said filter screen and said frame members.
Method of making a filter for separating a fluid and particles immersed in the fluid, the filter formed as a frusto cone, having a plurality of molded frame members attached to said filter, the method comprising the steps of:
- a) cutting a filter screen from a piece of filter material;
- b) cutting holes in the filter screen aligned with said molded frame members;
- c) forming said filter screen into a frusto-conical filter basket;
- and
- d) molding said molded frame members about said filter screen.
Method of making a filter for separating a fluid and particles immersed in the fluid the filter formed as a frusto cone, having a plurality of molded frame members attached to said filter, the method comprising the steps of:
- a) cutting a filter screen from a piece of filter material;
- b) cutting holes in the filter screen aligned with said molded frame members;
- c) forming said filter screen into a frusto-conical filter basket;
- and
- d) molding said molded frame members about said filter screen;
- wherein said molding step further includes inserting said frusto-conical filter basket into an injection mold having cavities for forming the molded members.
Dependencies are inferred from the claim text.