Method of manufacturing permanently magnetized elements

• US 20070000115A1
• Filed: 06/30/2005
• Published: 01/04/2007
• Est. Priority Date: 06/30/2005
• Status: Active Grant

• Current Assignee: Donna Barlett, Ernest Barlett
• Original Assignee: Donna Barlett, Ernest Barlett
• Inventors: Barlett, Ernest, Barlett, Donna
• Granted Patent: US 7,389,575 B2
• Time in Patent Office: Days
• US Class Current: 29/428
• CPC Class Codes: G09B 19/00 Teaching not covered by other main groups of this subclass teaching or practice apparatus for gun-aiming or gun-laying F41G3/26
• CPC Class Codes: Y10T 29/49034 Treating to affect magnetic properties
• CPC Class Codes: Y10T 29/49043 Depositing magnetic layer or coating
• CPC Class Codes: Y10T 29/49789 Obtaining plural product pieces from unitary workpiece
• CPC Class Codes: Y10T 29/49798 Dividing sequentially from leading end, e.g., by cutting or breaking
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49885 with coating before or during assembling
• CPC Class Codes: Y10T 29/49995 Shaping one-piece blank by removing material

Abstract

There is disclosed a method of manufacturing a plurality of removable permanently magnetized elements from a substrate comprising ferrite material. The method prints symbol images on the substrate with an offset, automatic sheet-fed press, and die cuts the symbol images on the substrate with an automatic sheet-fed die cutter to form a plurality of elements forming portions of the substrate. Thereafter, the method magnetizes the ferrite material to permanently magnetize the substrate and form the plurality of permanently magnetized elements. The method reduces wastage, permits for improved substrate registration, more accurate symbol placement on the substrate, higher production speeds, and reduced labor costs.

Claims

1. A method of manufacturing a plurality of removable permanently magnetized elements from a substrate comprising ferrite material, the method comprising the steps of:

(a) printing symbol images on the substrate with an offset, printing press,

(b) die cutting the symbol images on the substrate to form a plurality of removable elements forming portions of the substrate, and

(c) magnetizing the ferrite material to permanently magnetize the substrate and form the plurality of removable permanently magnetized elements.

2. The method of claim 1 wherein the substrate comprises a discrete sheet.

3. The method of claim 1 wherein the printing of said symbol comprises one of an advertisement, message, or space planning object.

4. The method of claim 1 wherein said printing comprises one of lithography, flexography, gravure, inkjet, and xerographic.

5. The method of claim 1 wherein said sheet further comprises a rare earth material.

6. The method of claim 1 wherein the die cutting step utilizes an automatic sheet-fed die cutter and the printing step utilizes an automatic sheet-fed printing press.

7. A method of manufacturing a substrate comprising a plurality of removable permanently magnetized elements each forming a portion of the substrate, the method comprising the steps of:

(a) forming a substrate with ferrite material

(b) printing symbol images on the substrate with an offset, printing press,

(c) die cutting the symbol images on the substrate to form a plurality of removable elements, and

(d) permanently magnetizing the ferrite material to magnetize the substrate and form the plurality of removeable magnetized elements.

8. The method of claim 7 wherein the substrate comprises a discrete sheet.

9. The method of claim 7 wherein the printing of said symbol comprises one of an advertisement, message, or space planning object.

10. The method of claim 7 wherein said printing comprises one of lithography, flexography, gravure, inkjet, and xerographic.

11. The method of claim 7 wherein said sheet further comprises a rare earth material.

12. The method of claim 7 wherein the die cutting step utilizes an automatic sheet-fed die cutter and the printing step utilizes an automatic sheet-fed offset printing press.