IP Library Granted Patent US 6,920,031
Granted Patent B2
US 6,920,031 · App. 10/814,491 · Granted Jul 19, 2005

Static charge neutralizer

Assignee: Velcon Filters, Inc.
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Quick Facts
Patent No.
US 6,920,031
App. No.
10/814,491
Granted
Jul 19, 2005
Kind
B2
Abstract

A hydrocarbon fluid filter monitor cartridge having apparatus for neutralizing the electrostatic charge in the transient fluid including a mass of filter material, and electrical conductor having a main conductive path and a plurality of cooperating electrically conductive paths extending from the main conductive path, and means for directing the flow of hydrocarbon fluid to be treated through the mass of filter material and in contact with the conductor whereby the electrostatic charge in the transient fluid is neutralized by corona discharge.

Claims (19)

1. Apparatus for neutralizing the electrostatic charge in hydrocarbon fluid by comprising:

a mass of filter material;

an electrical conductor having a main conductive path and a plurality of cooperating electrically conductive paths extending from the main conductive path and terminating in a pointed configuration spaced from the main conductive path; and

means for directing the flow of hydrocarbon fluid to be treated through said mass of filter material and in contact with said conductor, whereby the electrostatic charge in the fluid is neutralized by corona discharge.

2. The apparatus defined in claim 1 wherein said conductor is connected to electrical ground.

3. The apparatus defined in claim 2 wherein said conductor is located downstream of said mass of filter material.

4. The apparatus defined in claim 3 wherein said conductor is an anti-static cord.

5. The apparatus defined in claim 4 wherein said conductor is an anti-static tinsel.

6. The apparatus defined in claim 1 wherein said electrical conductor includes a perforated electrically conductive tube with apertures being defined by pointed edges.

7. The apparatus defined in claim 6 wherein the pointed edges extend radially inward from the apertures.

8. The apparatus defined in claim 1 wherein said electrical conductor is formed of an electrically conductive mesh material.

9. The apparatus defined in claim 8 wherein the mesh material is stainless steel.

10. The apparatus defined in claim 8 wherein said mass of filter material surrounds a centrally disposed perforated tube and said mesh material is caused to surround at least a portion of said perforated tube.

11. The apparatus defined in claim 1 wherein said electrical conductor includes electrically connected metal fibers.

12. Apparatus for neutralizing the electrostatic charge in hydrocarbon fluid by comprising:

central perforated tube;

a mass of filter material surrounding said tube;

an electrical conductor interdigitated between said tube and said mass of filter material, said electrical conductor having a main conductive path and a plurality of cooperating electrically conductive paths extending from the main conductive path and terminating in a pointed configuration spaced from the main conductive path; and

means for directing the flow of hydrocarbon fluid to be treated through said mass of filter material and in contact with said conductor, whereby the electrostatic charge in the fluid is neutralized by corona discharge.

Assignments (7)
MERGER Recorded Oct 25, 2018
From: VELCON FILTERS, LLC
To: PARKER-HANNIFIN CORPORATION
Reel/Frame 047309/0805 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Nov 13, 2012
From: BNP PARIBAS
To: VELCON FILTERS, LLC
Reel/Frame 029291/0683 →
GRANT OF PATENT SECURITY INTEREST Recorded Jul 10, 2012
From: VELCON FILTERS, LLC
To: BNP PARIBAS, AS ADMINISTRATIVE AGENT
Reel/Frame 028541/0395 →
GRANT OF PATENT SECURITY INTEREST Recorded Apr 12, 2011
From: VELCON FILTERS, LLC
To: BNP PARIBAS, AS ADMINISTRATIVE AGENT FOR AND REPRESENTATIVE OF THE BENEFICIARIES
Reel/Frame 026112/0366 →
SECURITY AGREEMENT Recorded May 4, 2009
From: VELCON FILTERS, LLC
To: BNP PARIBAS
Reel/Frame 022629/0728 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 30, 2009
From: VELCON FILTERS, INC.
To: VELCON FILTERS, LLC
Reel/Frame 022619/0158 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 31, 2004
From: SPRENGER, GREGORY S.; GISH, MICHAEL J.
To: VELCON FILTERS, INC.
Reel/Frame 015173/0931 →
Continuity (2)
Provisional Application 6046506300 · Apr 24, 2003
Related Publication 20040212945A1 · Oct 28, 2004