End cap retention device
AssigneeParker-Hannifin Corporation
InventorsKenneth M. Luther, Michael R. Sexsmith
Life of this patent
Estimating the term…
Abstract
Provided is a filter assembly including at least one end cap and at least one retainer mechanically locked to the end cap in a cavity and defining a region into which the bonding agent can flow to form a mechanical interlock with the retainer. Even if the bonding agent does not fully adhere to the end cap, the filter media will be secured in the end cap via the mechanical interlock of the bonding agent and retainer, thereby preventing end cap separation from the element.
Claims65
A filtration assembly including:
- at least one end cap (30, 130, 230) having a cavity defined therein (32, 132, 232);
- a filter media (16) having one end disposed in the cavity and secured to the end cap by a bonding agent;
- and
- at least one retainer (50, 150, 250) mechanically locked to the end cap in the cavity and defining a region into which the bonding agent can flow to form a mechanical interlock with the retainer.
A filter assembly according to any preceding claim, wherein the end cap (30, 130) includes an annular inner wall (34, 134) and an annular outer wall (36, 136) surrounding the inner wall, the inner and outer walls defining the cavity.
The filtration assembly according to any preceding claim, wherein the retainer (50, 150, 250) has a surface facing opposite the filter media, and wherein an open space is defined behind the surface into which the bonding agent can flow.
A filtration assembly according to any preceding claim, wherein the retainer (50, 150, 250) is steel.
A filtration assembly according to any preceding claim, further comprising:
- a second end cap (30, 130, 230) having a cavity defined therein (32, 132, 232);
- and
- at least one retainer (50, 150, 250) mechanically locked to the second end cap in the cavity and defining a region into which the bonding agent can flow to form a mechanical interlock with the retainer;
- wherein a second end of the filter media is disposed in the cavity and secured to the end cap by a bonding agent.
A filter assembly according to any one of claims 39-62, wherein the inner wall (34, 134, 234) defines a passage (42, 142, 242) through the second end cap (30, 130, 230) for fluid
A method of forming a filtration assembly including top and bottom end caps (30, 130, 230) having respective cavities (32, 132, 232) for receiving ends of a filter media (16) secured to the end caps by a bonding agent, the method including:
- inserting at least one retainer (50, 150, 250) in each cavity;
- introducing a bonding agent into each cavity;
- and
- inserting the ends of the filter media into the respective cavities;
- wherein the retainers are mechanically locked to the respective end cap in the respective cavity and define a region into which the bonding agent can flow to form a mechanical interlock with the retainer.
Dependencies are inferred from the claim text.