Filter for a portable industrial air filtration device

• US 9,517,428 B2
• Filed: 09/12/2014
• Issued: 12/13/2016
• Est. Priority Date: 09/12/2014
• Status: Expired due to Fees

• Current Assignee: Illinois Tool Works Inc.
• Original Assignee: Illinois Tool Works Inc.
• Inventors: Francis, Ryan L., Moore, Stephen Patrick
• Primary Examiner(s): CLEMENTE, ROBERT ARTHUR
• Application Number:
  US14/485,076
• Publication Number:
  US 20160074801A1
• Time in Patent Office: 823 Days
• US Class Current: 1/1
• CPC Class Codes: B01D 2273/30 Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan
• CPC Class Codes: B01D 46/0001 Making filtering elements
• CPC Class Codes: B01D 46/0086 Filter condition indicators
• CPC Class Codes: B01D 46/009 Identification of filter type or position thereof, e.g. by transponders or bar codes
• CPC Class Codes: B01D 46/2411 Filter cartridges
• CPC Class Codes: B01D 46/44 controlling filtration
• CPC Class Codes: B01D 46/444 by flow measuring
• CPC Class Codes: B01D 46/446 by pressure measuring
• CPC Class Codes: B01D 46/46 automatic
• CPC Class Codes: B01D 46/56 with multiple filtering elements, characterised by their mutual disposition B01D46/12 takes precedence
• CPC Class Codes: B01D 46/64 arranged concentrically or coaxially

Abstract

Various embodiments of the present disclosure provide a filter for a portable industrial air filtration device. The filter generally includes a body and a limit switch actuator attached to the body. The body includes filter media and a rigidized material. The filter media is attached to the rigidized material, and the body has opposing upper and lower edges. The limit switch actuator includes a head and an actuator connected to and extending from the head. The limit switch actuator is attached to the body such the actuator extends below the lower edge of the body and is configured to actuate a limit switch actuator of an air filtration device when the filter is installed in the air filtration device.

Claims

1. A filter comprising:

a body including filter media and a rigidized material, wherein an upper portion of the rigidized material is disposed between a first portion of the filter media and a second portion of the filter media, wherein the first portion of the filter media, the upper portion of the rigidized material, and the second portion of the filter media are attached via stitching, the body having opposing upper and lower edges and opposing interior and exterior surfaces; and

a limit switch actuator attached to the interior surface of the body and extending below the lower edge of the body.

2. The filter of claim 1, wherein the body is annularly-shaped.

3. The filter of claim 1, wherein the rigidized material forms the interior surface of the body.

4. The filter of claim 3, wherein the filter media forms the exterior surface of the body.

5. The filter of claim 1, wherein the filter media forms the exterior surface of the body.

6. The filter of claim 1, wherein the limit switch actuator includes a head and an actuator connected to and extending from the head, wherein the limit switch actuator is attached to the body such that the head contacts the interior surface of the body and the actuator extends below the lower edge of the body.

7. The filter of claim 6, wherein the limit switch actuator is attached to the body via at least one rivet.

8. The filter of claim 1, wherein the first portion of the filter media is connected to the second portion of the filter media.

9. The filter of claim 1, wherein a lower portion of the rigidized material is disposed between a third portion of the filter media and a fourth portion of the filter media, and the third portion of the filter media, the lower portion of the rigidized material, and the fourth portion of the filter media are attached via stitching.

10. The filter of claim 9, wherein the third portion of the filter media is connected to the fourth portion of the filter media.

11. The filter of claim 10, wherein the limit switch actuator includes a head and an actuator connected to and extending from the head.

12. The filter of claim 9, wherein the first portion of the filter media is connected to the second portion of the filter media, the third portion of the filter media is connected to the fourth portion of the filter media, and the second portion of the filter media is connected to the third portion of the filter media.

13. The filter of claim 12, wherein the first portion of the filter media terminates in a first free end and the fourth portion of the filter media terminates in a second free end.

14. The filter of claim 1, wherein a lower portion of the rigidized material is disposed between a third portion of the filter media and a fourth portion of the filter media, and the third portion of the filter media, the lower portion of the rigidized material, and the fourth portion of the filter media attached via stitching.

15. The filter of claim 14, wherein the third portion of the filter media is connected to the fourth portion of the filter media.

16. The filter of claim 15, wherein the limit switch actuator includes a head and an actuator connected to and extending from the head.

17. A filter comprising:

a body including filter media and a rigidized material, the filter media attached to the rigidized material, the body having opposing upper and lower edges and opposing side edges, wherein the side edges are directly attached to one another to form a single seam substantially aligned with a longitudinal axis of the body, the rigidized material forms an interior surface of the body and the filter media forms an exterior surface of the body, wherein an upper portion of the rigidized material is disposed between a first portion of the filter media and a second portion of the filter media, and wherein the first portion of the filter media, the upper portion of the rigidized material, and the second portion of the filter media are attached via stitching; and

a limit switch actuator including a head attached to one of;

(a) the interior surface of the body, and (b) the exterior surface of the body, and an actuator connected to and extending from the head, wherein the limit switch actuator is attached to the body such that the head contacts an interior surface of the body and the actuator extends below the lower edge of the body.

18. A filter comprising:

a body including filter media and a rigidized material, the filter media attached to the rigidized material, the body having opposing upper and lower edges, wherein;

(a) an upper portion of the rigidized material is disposed between a first portion of the filter media and a second portion of the filter media, and the first portion of the filter media, the upper portion of the rigidized material, and the second portion of the filter media are attached via stitching;

(b) a lower portion of the rigidized material is disposed between a third portion of the filter media and a fourth portion of the filter media, and the third portion of the filter media, the lower portion of the rigidized material, and the fourth portion of the filter media are attached via stitching; and

(c) the third portion of the filter media is connected to the fourth portion of the filter media; and

a limit switch actuator including a head and an actuator connected to and extending from the head, wherein the head is disposed between the third portion of the filter media and the fourth portion of the filter media and the actuator extends through the filter media proximate the lower edge of the body.

19. The filter of claim 18, wherein the first portion of the filter media is connected to the second portion of the filter media.

20. The filter of claim 19, wherein the second portion of the filter media is connected to the third portion of the filter media.

21. The filter of claim 20, wherein the first portion of the filter media terminates in a first free end and the fourth portion of the filter media terminates in a second free end.

22. A filter comprising:

a body including filter media and a rigidized material, the filter media attached to the rigidized material, the body having opposing upper and lower edges and opposing interior and exterior surfaces; and

a limit switch actuator including a head and an actuator connected to and extending from the head, wherein the limit switch actuator is attached to the body via at least one rivet such that the head contacts the interior surface of the body and the actuator extends below the lower edge of the body.