Dust filtration frame and disposal cover

• US 6,749,654 B2
• Filed: 05/30/2001
• Issued: 06/15/2004
• Est. Priority Date: 05/30/2001
• Status: Expired due to Fees

• Current Assignee: Emerson Electric Company
• Original Assignee: Emerson Electric Company
• Inventors: Hilliard, James E.
• Primary Examiner(s): PHAM, MINH CHAU THI
• Application Number:
  US09/870,182
• Publication Number:
  US 20020178704A1
• Time in Patent Office: 1,112 Days
• Field of Search: 553/851, 554/80, 554/81, 554/90, 554/92, 555/06, 555/08, 555/11, 55D/IG.31, 55D/IG.35, 553/67, 553/69
• US Class Current: 55/385.1
• CPC Class Codes: B01D 2265/02 Non-permanent measures for connecting different parts of the filter
• CPC Class Codes: B01D 46/0002 Casings; Housings; Frame constructions
• CPC Class Codes: B01D 46/0043 containing fixed gas displacement elements or cores
• CPC Class Codes: B01D 46/06 with means keeping the working surfaces flat
• CPC Class Codes: Y10S 55/31 Filter frame
• CPC Class Codes: Y10S 55/35 Respirators and register filters

Abstract

A dust collection system includes a housing defining an inlet and an outlet. A fan is situated within the housing to move air from the inlet to the outlet, and a filter is removably attached to the housing to collect dust entering the housing. To prevent dust from escaping the filter when it is removed from the housing for cleaning or disposal a cover is removably attached to the filter when it is desired to remove the filter. To insure the cover is available the next time it is necessary to remove the dust-laden filter, the cover may be attachable to the housing for storage thereon.

Claims

1. A filter device for use in a particle collection unit, comprising:

a frame defining an intake end;

a filter member connected to the frame for collecting particles entering the intake; and

a cover removably attachable to the intake end of the frame to prevent particles from escaping the filter device through the intake end, wherein the cover is further removably attachable to the particle collection unit for storage thereon.

2. The filter device of claim 1, further comprising a fastener attached to the cover for removably attaching the cover to the particle collection unit between uses.

3. The filter device of claim 2, wherein the fastener comprises a magnet attached to the cover for attaching the cover on the particle collection unit between uses.

4. The filter device of claim 1, wherein the frame defines a channel for slidably receiving the cover.

5. The filter device of claim 1, wherein the frame includes at least one retaining member that forms the channel.

6. The filter device of claim 1, wherein the retaining member is integrally formed from the frame.

7. A dust collection system, comprising:

a housing defining an inlet and an outlet;

a fan situated within the housing to move air from the inlet to the outlet;

a filter removably attached to the housing to collect dust entering the housing; and

a cover, wherein

the cover is attachable to the filter to prevent collected dust from escaping the filter when the filter is removed from the inlet of the housing, and

the cover is attachable to the housing for storage thereon.

8. The dust collection system of claim 7, further comprising a fastener for attaching the cover to the housing.

9. The dust collection system of claim 8, wherein the fastener comprises a magnet attached to the cover for removably attaching the cover to the housing between uses.

10. The dust collection system of claim 8, wherein the fastener comprises a magnet attached to the housing for removably attaching the cover to the housing between uses.

11. The dust collection system of claim 7, wherein the filter includes a frame defining a channel for slidably receiving the cover.

12. The dust collection system of claim 11, wherein the channel is formed integrally from material of the frame.

13. A method for collecting airborne dust, comprising:

situating a dust filter inside a housing;

removably attaching a cover to an outside surface of the housing;

moving dust-laden air through the filter to collect dust in the filter;

removing the cover from the outside surface of the housing and attaching the cover to an inlet of the filter to block the inlet; and

removing the filter from the housing.

14. The method of claim 13, further comprising removing the cover from the filter and re-attaching the cover to the housing.

15. The method of claim 13, wherein attaching the cover to the inlet of the filter further comprises sliding the cover into a channel situated adjacent the inlet of the filter.

16. The method of claim 13, wherein removably attaching the cover to the housing includes attaching a magnet to at least one of the cover or the housing.

17. A dust collection system, comprising:

a housing defining an inlet and an outlet;

a fan situated within the housing to move air from the inlet to the outlet;

a filter removably attached to the housing to collect dust entering the housing;

first means for preventing collected dust from escaping the filter when the filter is removed from the housing; and

second means for attaching the first means to the housing.