Method of protecting a metallic workpiece

Details Method of protecting a metallic workpiece Method of protecting a metallic workpiece

1997-04-21

1999-03-23

Pianalto, Bernard

Coating processes

Direct application of electrical, magnetic, wave, or...

Pretreatment of substrate or post-treatment of coated substrate

427292, 427300, 427307, 427327, 427598, H01F 100

Patent

active

058856676

ABSTRACT:
A protective mask is formed of an annular magnetic sheet. Such a sheet may be used to cover annular surfaces to be protected. Adhesive is formed on one side of the sheet. In use, a fluid impervious sheet is adhered to the first side and across the central opening of the annular magnetic sheet. A method of protecting a metallic workpiece during treatment, the metallic workpiece having a portion to be protected during treatment, for example a raised face of a flanged pipe, the method comprising the steps of magnetically attaching a protective mask to the portion of the metallic workpiece to be protected, the protective mask being formed of an annular magnetic sheet and treating the workpiece, such as by painting or sandblasting. A method of protecting a pipe during transportation of the pipe, the pipe having a flanged pipe end and a pipe bore, the method comprising the steps of magnetically attaching a circular protective sheet to the flanged pipe end over the pipe bore; and transporting the pipe.

REFERENCES:
patent: 5702774 (1997-12-01), Griffin et al.
Abstract of United States Patent No. 5,198,031 issued Mar. 30, 1993, Derstine, 2 pages.

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