# US 2020/0286407 A1 · Selectively Visible Product Marking System

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- Number: US 2020/0286407 A1
- Document ID: US20200286407A1
- Status: Published application
- Kind: A1
- Application number: 16/811,652
- Filed: 2020-03-06
- Published: 2020-09-10
- Earliest claimed: 2019-03-08
- Inventors: Fran Lanciaux
- Web page: https://patentgrep.com/patent/US20200286407A1

## CPC

- G09F 3/0294: {where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like}
- B41M 3/144: {using fluorescent, luminescent or iridescent effects}
- C09D 11/50: Sympathetic, colour changing or similar inks
- G09F 3/0297: {including a machine-readable marking, e.g. a bar code (digitally marked record carriers in general G06K19/00)}
- G09F 2003/0216: {for containers}
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P)
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)

## Abstract

A system for marking products to indicate compliance with the requirements of various agencies and organizations such as UL. Markings are applied to products with indicia that is selectively visible. The indicia may be formed with an ink that is visible only outside of the visible light spectrum. The markings can be discerned at any time by rendering the markings visible. Visibility may be achieved by exposing the marking to ultraviolet light, for example. When the light is extinguished, the markings are no longer perceptible.

## Claims

### Claim 1

A selectively visible product marking system comprising:
an adhesive backed base material; and
a plurality of spaced apart indicia;
wherein the spaced apart indicia is selectively visible.

### Claim 2 (depends on 1)

The selectively visible product marking system of claim 1, wherein the selectively visible product marking system is formed as an HVAC duct closure.

### Claim 3 (depends on 1)

The selectively visible product marking system of claim 1, wherein the spaced apart indicia is formed by ink.

### Claim 4 (depends on 1)

The selectively visible product marking system of claim 1, wherein the indicia is formed by printed foil.

### Claim 5 (depends on 1)

The selectively visible product marking system of claim 1, wherein the selectively visible indicia is visible under ultra-violet light.

### Claim 6

A method for complying with HVAC product marking requirements, the method comprising the steps of
printing or otherwise affixing a plurality of spaced apart markings on a duct closure component, wherein the markings are is comprised of selectively visible ink which is not visible in the visible spectrum of light,
assembling an HVAC duct having a seam,
affixing the duct closure component to the duct to seal the seam,
rendering the markings visible by exposing it to light outside of the visible spectrum, and
rendering the markings invisible by extinguishing the light.

### Claim 7 (depends on 6)

The method of claim 6, including the step forming the plurality of markings with ink.

### Claim 8 (depends on 6)

The method of claim 6, including the step of forming the plurality of markings with printed foil.

### Claim 9 (depends on 6)

The method of claim 6, wherein the selectively visible plurality of marks are visible under ultra-violet light.

### Claim 10

A section of HVAC duct, the duct section comprising
a duct wall having a seam, and
a selectively visible product marking system applied to and effectively sealing the seam, the selectively visible product marking system having an adhesive backed base material and a plurality of spaced apart indicia;
wherein the spaced apart indicia has the form of a selectively visible medium which is not discernable to the naked eye in the visible light spectrum, and is discernable to the naked eye when exposed to light outside of the visible spectrum.

### Claim 11 (depends on 10)

The section of HVAC duct of claim 10, wherein the indicia is formed by ink.

### Claim 12 (depends on 10)

The section of HVAC duct of claim 10, wherein the indicia is formed by printed foil.

### Claim 13 (depends on 10)

The section of HVAC duct of claim 10, wherein the selectively visible indicia is visible under ultra-violet light.