FILTER HOUSING WITH FILTER KEY ATTACHMENT
First Claim
1. A filter housing assembly comprising:
- a filter media;
a filter housing having a top, a bottom, sidewalls, and a center axis for enclosing said filter media;
said filter housing top having two cylindrical ports extending therefrom, each cylindrical port having a sidewall with an aperture and a fluid-sealed top surface, said cylindrical ports in fluid communication with said filter media for fluid ingress and egress, said filter housing top including a first attachment structure for receiving a filter key, wherein said first attachment structure forms an elongated protrusion or rail extending axially upwards from said filter housing top, and radially outwards centered about said center axis of said filter housing top, said elongated protrusion or rail having a predominately rectangular shape for slideably engaging a connector piece or filter key that is designed to interface with a complementary mating filter base.
1 Assignment
0 Petitions
Accused Products
Abstract
A filter assembly for fluid filtration having a push-activated lock and release mechanism. A push filter design activates a filter key lock upon insertion and extraction, where the filter key may be used simultaneously as a lock and as an identifier for particular filter attributes. The filter housing assembly may be attached to, and removed from, a filter base by a push-actuated release. Upon insertion, the filter key shifts the filter lock longitudinally to receive interlocking segments. Upon extraction, the same axial push shifts the filter lock further to align the interlocking fingers within gaps that allow for easy extraction. The specific key lock design allows a user to identify and match certain filter configurations received by the mechanical support, and reject other filter configurations.
4 Citations
18 Claims
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1. A filter housing assembly comprising:
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a filter media; a filter housing having a top, a bottom, sidewalls, and a center axis for enclosing said filter media; said filter housing top having two cylindrical ports extending therefrom, each cylindrical port having a sidewall with an aperture and a fluid-sealed top surface, said cylindrical ports in fluid communication with said filter media for fluid ingress and egress, said filter housing top including a first attachment structure for receiving a filter key, wherein said first attachment structure forms an elongated protrusion or rail extending axially upwards from said filter housing top, and radially outwards centered about said center axis of said filter housing top, said elongated protrusion or rail having a predominately rectangular shape for slideably engaging a connector piece or filter key that is designed to interface with a complementary mating filter base. - View Dependent Claims (2, 3, 4)
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5. A filter housing assembly comprising:
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a filter media; a filter housing having a top, a bottom, sidewalls, and a center axis for enclosing said filter media, said filter housing top having two cylindrical ports extending therefrom, each cylindrical port having a sidewall with an aperture and a fluid-sealed top surface, said cylindrical ports in fluid communication with said filter media for fluid ingress and egress, said filter housing top including a first attachment structure for receiving a filter key, wherein said first attachment structure forms an elongated protrusion or rail extending axially upwards from said filter housing top, and radially outwards centered about said center axis of said filter housing top, said elongated protrusion or rail having a predominately rectangular shape for slideably engaging a filter key that is designed to interface with a complementary mating filter base; and said filter key having a top surface, longitudinal sides, and lateral sides shorter than the longitudinal sides, the filter key having on a top surface an attachment finger for mating with a filter base, said attachment finger extending in a direction parallel to the filter key lateral sides, wherein the attachment finger includes laterally facing opposing side faces, wherein one opposing side face forms a first angle with the filter housing axis and the other opposing side face forms a second angle with the filter housing axis, such that the first angle and the second angle are not equal, and the filter key having on a bottom surface an indent or groove for slideably receiving said first attachment structure. - View Dependent Claims (6)
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7. A filter cartridge comprising:
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a filter media; a filter housing for enclosing said filter media, the filter housing having a body and a top portion for forming a fluid-tight seal with the body, a filter housing center axis extending in an axial direction about the filter housing, the filter housing top portion including; an ingress port; an egress port; and a filter key located on or connected to the filter housing and having a top surface, at least two longitudinal sides, and at least two lateral sides, each shorter than at least two longitudinal sides, the filter key having a protrusion extending in a direction parallel to the filter key lateral sides, wherein the protrusion includes on one side a slanted or angled face angled with respect to the filter housing axis, and on an opposing side a face having at least a portion being a substantially straight edge parallel to the filter housing axis. - View Dependent Claims (8, 9, 10)
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11. A filter cartridge comprising:
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a filter media; a filter housing for enclosing said filter media, the filter housing having a body and a top portion for forming a fluid-tight seal with the body, an axis extending in an axial direction about the filter housing, the filter housing including; an ingress port; an egress port; and a filter key located on or connected to the filter housing for mating attachment to a filter base or manifold, the filter key having a top surface, at least two longitudinal sides, and at least two lateral sides shorter than at least two longitudinal sides, the filter key having an attachment finger extending in a direction parallel to the filter key lateral sides, wherein the attachment finger includes laterally facing opposing side faces, wherein one opposing side face forms a first angle with the filter housing axis and the other opposing side face forms a second angle with the filter housing axis, such that the first angle and the second angle are not equal. - View Dependent Claims (12, 13)
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- 14. A filter key connectable to a filter housing, for mating attachment to a filter base or manifold, wherein structures of said filter key are defined relative to a center axis of the filter housing, the filter key having a top surface, bottom surface, longitudinal sides, and lateral sides shorter than the longitudinal sides, and an attachment finger extending in a direction parallel to the filter key lateral sides, wherein the attachment finger includes laterally facing opposing side faces, wherein one opposing side face forms a first angle with respect to the filter housing center axis and the other opposing side face forms a second angle with respect to the filter housing center axis, such that the first angle and the second angle are not equal.
Specification