Removable Magnetic Liner and Screening Media, and Processes of Production, Installation, and Use Thereof

• US 20110151178A1
• Filed: 06/21/2010
• Published: 06/23/2011
• Est. Priority Date: 12/23/2009
• Status: Active Grant

• Current Assignee: Tema Isenmann, Inc. (Steinhaus Gesellschaft Mit Beschrankter Haftung)
• Original Assignee: Tema Isenmann, Inc. (Steinhaus Gesellschaft Mit Beschrankter Haftung)
• Inventors: Stackpole, Benjamin
• Granted Patent: US 9,283,700 B2
• Time in Patent Office: Days
• US Class Current: 428/99
• CPC Class Codes: B07B 1/46 Constructional details of screens in general; Cleaning or heating of screens
• CPC Class Codes: B07B 2201/02 Fastening means for fastening screens to their frames which do not stretch or sag the screening surfaces
• CPC Class Codes: B29C 45/14065 Positioning or centering articles in the mould
• CPC Class Codes: B29K 2705/00 Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
• CPC Class Codes: Y10T 428/24008 including fastener for attaching to external surface

Abstract

A removable, magnetically-affixed mechanical wear element, preferably comprising ultra-high molecular weight polyethylene or polyurethane materials, is provided for affixation to a ferrous substrate material. The mechanical wear element is configured so that the magnetic attachment element is not easily removed or dislodged from the mechanical wear element, without regard to choice of mechanical wear element material utilized.

Claims

1. A mechanical wear element for attachment to one of a ferrous or a magnetic substrate comprising:

a. a mechanical wear element material;

b. a groove formed within said mechanical wear element material; and

c. a magnetic element firmly disposed within said groove;

whereby the mechanical wear element may be attached to one of the ferrous or the magnetic substrate and easily repositioned or removed by a user through lifting or prying the mechanical wear element away from the substrate material.

2. The mechanical wear element of claim 1, wherein said mechanical wear element material comprises ultra-high molecular weight polyethylene.

3. The mechanical wear element of claim 1, wherein said mechanical wear element material comprises polyurethane.

4. The mechanical wear element of claim 1, wherein said groove comprises a plurality of grooves.

5. The mechanical wear element of claim 1, wherein said groove comprises a slot.

6. The mechanical wear element of claim 1, wherein a shape of said groove is selected from the group consisting of a T-shaped groove, a dovetail-shaped groove, and a rectangular-shaped groove.

7. The mechanical wear element of claim 1, wherein said groove is less than a thickness of said mechanical wear element material.

8. The mechanical wear element of claim 1, wherein said mechanical wear element material comprises a sheet of material.

9. The mechanical wear element of claim 1, wherein said magnetic element comprises a plurality of magnetic elements.

10. The mechanical wear element of claim 1, wherein said magnetic element comprises a mechanical wear element engaging portion selected from the group consisting of a T-shaped portion, a dovetail-shaped portion, and a rectangular-shaped portion.

11. The mechanical wear element of claim 10, wherein said mechanical wear element engaging portion of said magnetic element is magnetic.

12. A mechanical wear element for attachment to one of a ferrous or a magnetic substrate comprising:

a. a mechanical wear element material;

b. a groove formed within said mechanical wear element material;

c. a magnetic element covering at least a portion of a surface of said mechanical wear element material; and

d. an adhesive disposed within said groove and affixed to said magnetic element;

whereby, upon curing, said adhesive remains firmly disposed within said groove and affixed securely to said magnetic element, forming a mechanical wear element that may be attached to one of the ferrous or the magnetic substrate and easily repositioned or removed by a user through lifting or prying the mechanical wear element away from the substrate material.

13. The mechanical wear element of claim 12, wherein said mechanical wear element material comprises ultra-high molecular weight polyethylene.

14. The mechanical wear element of claim 12, wherein said groove comprises a plurality of grooves.

15. The mechanical wear element of claim 12, wherein a shape of said groove is selected from the group consisting of a T-shaped groove, a dovetail-shaped groove, and a rectangular-shaped groove.

16. The mechanical wear element of claim 12, wherein said mechanical wear element material comprises a sheet of material.

17. The mechanical wear element of claim 12, wherein said magnetic element comprises a sheetlike magnetic element.

18. A process for producing a mechanical wear element for attachment to one of a ferrous or a magnetic substrate comprising the steps of:

a. providing a mold;

b. establishing a position in said mold for a magnetic element;

c. placing a magnetic element into said mold at said position;

d. filling said mold with a liquid or flowable emulsified material;

e. curing said liquid or emulsified material; and

f. demolding the mechanical wear element part;

whereby, upon completion of steps a-f, a mechanical wear element is formed that may be attached to one of the ferrous or the magnetic substrate and easily repositioned or removed by a user through lifting or prying the mechanical wear element away from the substrate material.

19. The process of claim 18, wherein steps b. and c. are replaced by steps comprising:

b′

. establishing a plurality of positions in said mold, each said position for receiving a magnetic element;

c′

. placing a magnetic element into said mold at each said position; and

c″

. positioning a ferrous element across, and bridging, two or more selected magnetic elements.

20. The mechanical wear element of claim 18, wherein said liquid or flowable emulsified material comprises polyurethane.

21. The mechanical wear element of claim 18 wherein a reinforcing element is associated with said magnetic element adjacent, at, or along an interface surface of the mechanical wear element to reduce a potential for said magnetic element to become dislodged from said mechanical wear element during use.

22. The mechanical wear element of claim 21 wherein said reinforcing element is mesh material.

23. The mechanical wear element of claim 21 wherein said reinforcing element is selected from the group consisting of a ferrous band, a ferrous strap, a ferrous sheet, and a ferrous bar.

24. The mechanical wear element of claim 18 comprising a mechanical screen.

25. The mechanical wear element of claim 18 comprising a knock-in bar.

26. A process for producing a mechanical wear element for attachment to one of a ferrous or a magnetic substrate comprising the steps of:

a. providing a mold;

b. positioning a plurality of magnetic elements within said mold;

c. positioning a ferrous element across, and bridging, two or more selected magnetic elements;

d. filling said mold with a liquid or flowable emulsified material;

e. curing said liquid or emulsified material; and

f. demolding the mechanical wear element part;

whereby, upon completion of steps a-f, a mechanical wear element is formed that may be attached to one of the ferrous or the magnetic substrate and easily repositioned or removed by a user through lifting or prying the mechanical wear element away from the substrate material.

27. A mechanical wear element for attachment to one of a ferrous or a magnetic substrate comprising:

a. a mechanical wear element material;

b. a magnetic element firmly disposed within said mechanical wear element material;

whereby the mechanical wear element may be attached to one of the ferrous or the magnetic substrate and easily repositioned or removed by a user through lifting or prying the mechanical wear element away from the substrate material.

28. The mechanical wear element of claim 27, wherein said mechanical wear element material comprises polyurethane.

29. The mechanical wear element of claim 27 comprising a mechanical screen.

30. The mechanical wear element of claim 27 comprising a knock-in bar.