Method and system for the selective coating of an interior surface

Patent metadata

Field	Value
Publication number	US-10702882-B2
Application number	US-201514924964-A
Country	US
Kind code	B2
Filing date	Oct 28, 2015
Priority date	Oct 30, 2014
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

The present disclosure relates, in various embodiments, to methods and systems for masking and de-masking a portion of an interior surface of a structure, such as may be useful in the selective coating of an interior surface of a structure. The method comprises providing a masking device comprising a magnetically active material and a seal-forming material and inserting the masking device into an interior of the structure. A magnetic force is activated in order to bring the masking device into sealable contact with a portion of an interior surface of the structure, thereby producing a masked portion of the interior surface. While maintaining the sealable contact, the unmasked portion of the interior surface of the structure is coated with a coating material. After the coating, the magnetic force is deactivated in order to bring the masking device out of sealable contact with the interior surface of the structure.

First claim

What is claimed is:

1. A system for masking and de-masking a portion of an interior surface of a structure comprising:
(a) a masking unit comprising at least a body and a handle, the body comprising
(i) a magnetically active material, and
(ii) a seal-forming material; and

(b) an object that is configured to produce a magnetic force that acts on an interior cavity of the structure;
wherein the masking unit is configured to be inserted into the interior cavity of the structure; and
wherein the magnetic force is configured to cause the masking unit to sealably contact the portion of the interior surface of the structure, and wherein the object is an electromagnet.

2. The system of claim 1 , in which the handle is configured to flex in response to application of the magnetic force.

3. The system of claim 2 , in which the handle is configured to return to its natural position in response to a removal of the magnetic force.

4. The system of claim 1 , in which the masking unit is configured to provide the structure with a viewing aperture.

5. The system of claim 1 , in which the masking unit is less than 6 mm thick.

6. A system for masking and de-masking a portion of an interior surface of a structure comprising:
(a) a masking unit comprising at least a body and a handle, the body comprising
(i) a magnetically active material, and
(ii) a seal-forming material; and

(b) an object that is configured to produce a magnetic force that acts on an interior cavity of the structure;
wherein the masking unit is configured to be inserted into the interior cavity of the structure; and
wherein the magnetic force is configured to cause the masking unit to sealably contact the portion of the interior surface of the structure, and wherein the object is a permanent magnet.

7. The system of claim 6 , in which the handle is configured to flex in response to application of the magnetic force.

8. The system of claim 7 , in which the handle is configured to return to its natural position in response to a removal of the magnetic force.

9. The system of claim 6 , in which the masking unit is configured to provide the structure with a viewing aperture.

10. The system of claim 6 , in which the masking unit is less than 6 mm thick.

Assignees

• Corning Inc

Inventors

• Heise Karl Robert
• Miller Jeffrey Allen
• Woldegiworgis Haregewine Tadesse

Classifications

• B05D1/32

  using means for protecting parts of a surface not to be coated, e.g. using stencils, resists · CPC title

• B05D7/22

  to internal surfaces, e.g. of tubes · CPC title

• B05B13/0618 Primary

  only a part of the inside of the hollow bodies being treated · CPC title

• B05B12/20

  Masking elements, i.e. elements defining uncoated areas on an object to be coated · CPC title