Filter carrier tray

• US 20030042165A1
• Filed: 07/12/2002
• Published: 03/06/2003
• Est. Priority Date: 07/13/2001
• Status: Active Grant

• Current Assignee: Donaldson Company Incorporated
• Original Assignee: Donaldson Company Incorporated
• Inventors: McPhail, Patrick L.
• Granted Patent: US 6,926,148 B2
• Time in Patent Office: Days
• US Class Current: 206/460
• CPC Class Codes: B65D 73/00 Packages comprising articles attached to cards, sheets or webs B65D85/18 takes precedence

Abstract

The present invention is directed to a carrier for retaining and transferring filtration devices, as well as to filtration devices configured for placement in the carrier. The carrier generally includes a tray having a plurality of filter seats along with a plurality of holes extending through the tray. Each filter has a release liner that is removably secured to a pressure sensitive adhesive on the filter, and this release liner also contains a tab that extends through one of the holes in the tray and is permanently bonded to the bottom side of the tray.

In use the filters can be removed from the tray by manual or automatic means. During the removal process the release liner separates from the pressure sensitive adhesive on the filter and is retained on the tray. In certain implementations the release liner contains two portions with an adhesive on them—one portion in contact with the filter and one portion in contact with the tray—and these two portions are separated by an area of the release liner that does not contain adhesive.

Claims

1. A carrier for retaining and transferring filtration devices, the carrier comprising:

a) a tray having a first surface, a second surface, and at least one opening extending from the first surface to the second surface;

the first surface configured to receive at least one filter element;

b) at least one filter element positioned on the first surface of the tray;

c) a release liner in contact with the filter element and the tray, the release liner having a top surface;

wherein a first portion of the top surface of the release liner contains an adhesive composition in contact with the filter element;

a second portion of the top surface of the release liner contains an adhesive composition in contact with the second surface of the tray.

2. The carrier for retaining and transferring filtration devices of claim 1, wherein the top surface of the release liner further comprises a third portion that does not contain an adhesive composition.

3. The carrier for retaining and transferring filtration devices of claim 2, wherein the third portion that does not contain an adhesive composition is intermediate the first and second portions.

4. The carrier for retaining and transferring filtration devices of claim 1, wherein the first surface is configured to receive multiple filter elements.

5. The carrier for retaining and transferring filtration devices of claim 1, wherein the release liner comprises a tab extending from the edge of the filter element.

6. The carrier for retaining and transferring filtration devices of claim 1, wherein the filter element is removable by a vertical lifting motion that leaves the release liner secured to the second surface of the tray.

7. A carrier for retaining and transferring filtration devices, the carrier comprising:

a) a tray having an upper surface and a lower surface, the upper surface configured to receive at least one filter element having an adhesive composition at least partially covered by a removable release liner; and

b) at least one opening in the tray extending from the upper surface to the lower surface;

wherein the lower surface of the tray is configured and arranged to be secured to the release liner using an adhesive composition.

8. The carrier for retaining and transferring filtration devices of claim 7, wherein the release liner has an upper surface containing at least two areas of adhesive:

a first area in contact with the filter element and a second area in contact with the lower surface of the tray.

9. The carrier for retaining and transferring filtration devices of claim 7, wherein the upper surface of the tray is configured to receive multiple filter elements.

10. The carrier for retaining and transferring filtration devices of claim 7, wherein the release liner comprises a tab extending from the an edge of the filter element.

11. A filtration device containing a release liner configured to be retained in a carrier device, the filtration device comprising:

a) a release liner having a first surface;

b) a filter housing having a first adhesive composition in contact with a first portion of the first surface of the release liner; and

c) a second adhesive composition covering a second portion of the first surface of the release liner, the second adhesive composition configured for retaining the release liner to the carrier device.

wherein the first and second adhesive compositions are separated by a third portion of the first surface of the release liner, this third portion not containing an adhesive composition.

12. The filtration device containing a release liner of claim 11, wherein the release liner is readily removable from the filter housing but not readily removed from the carrier device after being retained by the carrier device.

13. The filtration device containing a release liner of claim 11, wherein the first adhesive composition comprises a pressure sensitive adhesive.