Filter element with biplanar O-ring
AssigneeParker-Hannifin Corporation
InventorAlfin Leo
Life of this patent
Estimating the term…
Abstract
A filter element having an end cap with a base and a sleeve surrounding a central aperture in the base and projecting axially outwardly therefrom, where the sleeve includes i) a notched locating feature in a distal edge of the sleeve; and ii) a seal surrounding the outer surface of the sleeve and having planar segments, with a first planar segment located between the locating feature and the distal edge of the sleeve, and a second planar segment, extending along a plane different from the first planar segment, located between the notched locating feature and the base. In an alternate embodiment, the sleeve includes an axially-extending locating feature on an outer surface thereof.
Claims15
A filter head for use with a filter end cap having a base;
- and a sleeve attached to the base, the sleeve surrounding a central aperture in the filter end cap and projecting axially away from the base, wherein the sleeve includes:
- a notched locating feature in a distal edge of the sleeve;
- and a seal groove surrounding an outer surface of the sleeve, the seal groove having a first planar segment lying in a first plane and located between the base and the distal edge of the sleeve, and a second planar segment lying in a second plane different from the first plane, the second planar segment located between the base and the notched locating feature, the filter head comprising:
- a body that includes:
- a central opening that extends into an interior of the body, the central opening extending parallel to a longitudinal axis of the body, wherein the central opening is configured to accommodate the sleeve when the filter end cap is assembled to the filter head, wherein a wall portion in the interior of the body defines the central opening, the wall portion having an end cap locating feature configured to align with the notched locating feature in the sleeve;
- and
- a secondary opening that extends parallel to the longitudinal axis and into an interior of the body a shorter distance than the central opening, the secondary opening being configured to accommodate the base when the filter end cap is assembled to the filter head.
A filter assembly comprising:
- a filter end cap including:
- a base;
- and
- a sleeve attached to the base, the sleeve surrounding a central aperture in the filter end cap and projecting axially away from the base, wherein the sleeve includes:
- a notched locating feature in a distal edge of the sleeve;
- and
- a seal groove surrounding an outer surface of the sleeve, the seal groove having a first planar segment lying in a first plane and located between the base and the distal edge of the sleeve, and a second planar segment lying in a second plane different from the first plane, the second planar segment located between the base and the notched locating feature;
- and
- a filter head assembled to the filter end cap, the filter head comprising:
- a body that includes:
- a central opening that extends into an interior of the body, the central opening extending parallel to a longitudinal axis of the body, wherein the central opening is configured to accommodate the sleeve when the filter end cap is assembled to the filter head, wherein a wall portion in the interior of the body defines the central opening, the wall portion having an end cap locating feature configured to align with the notched locating feature in the sleeve;
- and
- a secondary opening that extends parallel to the longitudinal axis and into an interior of the body a shorter distance than the central opening, the secondary opening being configured to accommodate the base when the filter end cap is assembled to the filter head.
Dependencies are inferred from the claim text.