Simulated neon sign

• US 4,891,896 A
• Filed: 08/15/1988
• Issued: 01/09/1990
• Est. Priority Date: 08/15/1988
• Status: Expired due to Fees

• Current Assignee: Intellectual Property Development Corporation Pty Limited
• Original Assignee: Intellectual Property Development Corporation Pty Limited
• Inventors: Boren, Vernie A.
• Primary Examiner(s): McCall, James T.
• Assistant Examiner(s): NOT, DEFINED
• Application Number:
  US07/232,238
• Time in Patent Office: 512 Days
• Field of Search: 40/545, 40/552, 40/575, 40/576, 40/577, 40/559, 40/560, 40/570, 40/618, 40/580, 40/541, 40/540, 40/564, 40/442, 40/443
• US Class Current: 40/541
• CPC Class Codes: G09F 13/04 Signs, boards or panels, illuminated from behind the insignia
• CPC Class Codes: G09F 13/0472 Traffic signs
• CPC Class Codes: G09F 13/0481 Signs, boards or panels having a curved shape

Abstract

A simulated neon sign comprises a frame, non-neon internal lighting, and a front plastic panel having an outer face. The outer face of the front plane comprises outwardly projecting indicia and a non-projecting region that is substantially opaque to the internal light. Pigmented translucent coating is applied on the indicia so that light from the internal lighting can pass through the indicia. To simulate the halo effect of a neon light, additional pigmented coating is applied to the non-projecting region of the panel adjacent the indicia. A method for manufacturing the neon sign is also disclosed.

Claims

1. A simulated neon sign comprising:

(a) a frame;

(b) non-neon internal lighting means within the frame;

(c) a front plastic panel formed of a light transmitting plastic held by the frame and having an outer face, the outer face comprising outwardly projecting indicia and a non-projecting region, the non-projecting region being substantially opaque to light from the internal lighting means;

(d) a first pigmented translucent coating on the indicia so that light from the lighting means can pass through the indicia; and

(e) additional pigmented coating on the non-projecting region of the panel adjacent to the indicia, the additional coating being of substantially the same color as the first pigmented coating so that it appears that light from the lighting means passing through the indicia is reflected off the opaque non-projecting region to achieve the halo effect of neon lights;

wherein the thickness of the first coating is greater at the center than at the sides of the indicia so that the intensity of light through the sides of the indicia is substantially the same as at the center.

2. The sign of claim 1 including a substantially transparent glossy coating over substantially the entire outer face of the front panel, including over the translucent coating and the additional pigmented coating, so that at least the indicia appear glass-like.

3. The sign of claim 1 wherein the front panel has indicia of different colors, and wherein the additional pigmented coating adjacent indicia is the same color as the color of the first coating on the corresponding indicia.

4. The sign of claim 1 wherein the non-projecting region has an opaque coating thereon, the additional pigmented coating being on top of the opaque coating.

5. The sign of claim 4 in which the opaque coating is black.

6. The sign of claim 1 wherein the lighting means is fluorescent or incandescent.

7. A simulated neon sign comprising:

(a) a frame;

(b) non-neon internal lighting means within the frame; and

(c) front and a rear plastic panels, both panels formed of light transmitting plastic, held by the frame with the internal light therebetween, each plastic panel comprising;

(i) an outer face having outwardly projecting indicia and a non-projecting region, the non-projecting region being substantially opaque to light from the internal lighting means;

(ii) a first pigmented translucent coating on the indicia so that light from the lighting means can pass through the indicia; and

(iii) additional pigmented coating on the non-projecting region of the panel adjacent to the indicia, the additional coating being of substantially the same color as the first pigmented coating so that it appears that light from the lighting means passing through the indicia is reflected off the opaque non-projected region to achieve the halo effect of neon lights;

wherein the thickness of the first coating is greater at the center than at the sides of the indicia so that the intensity of light through the sides of the indicia is substantially the same as at the center.

8. The sign of claim 7 including a substantially transparent glossy coating over substantially the entire outer face of both panels, including over the translucent coating and the additional pigmented coating, so that at least the indicia appear glass-like.

9. The sign of claim 7 wherein the non-projecting region has an opaque coating thereon, the additional pigmented coating being on top of the opaque coating.

10. A method for making a plastic panel for a simulated neon sign comprising the steps of:

(a) vacuum forming a light transmitting plastic sheet to form a plastic panel having an outer face with outwardly projecting indicia thereon and a non-projecting region thereon;

(b) masking the indicia with masking means;

(c) applying an opaque coating to the non-projecting region and not the indicia, the indicia being protected by the masking means;

(d) removing the masking means from the indicia;

(e) applying a first pigmented translucent coating to the indicia wherein the thickness of the first coating is greater at the center than at the sides of the indicia so that the intensity of light through the sides of the indicia is substantially the same as at the center; and

(f) applying additional pigmented coating to the non-projecting region over the opaque coating immediately adjacent to the indicia, the color of the additional coating being substantially the same as the color of the first coating on the corresponding indicia.

11. The method of claim 10 including the additional step of applying a substantially transparent glossy overcoat over substantially the entire face of the front panel, the overcoat being on top of the first pigmented coating, the opaque coating, and the additional pigmented coating.

12. The method of claim 10 wherein the step of applying additional pigmented coating comprises air brushing the additional pigmented coating.

13. The method of claim 10 wherein the step of masking the indicia comprises the steps of (i) applying masking means to substantially the entire outer face of the plastic panel, and (ii) removing the masking means except on the indicia.

14. A simulated neon sign comprising:

(a) a frame;

(b) internal fluorescent or incandescent lighting within the frame;

(c) a light emitting sheet of plastic vacuum formed to form a front plastic panel having an outer face comprising outwardly projecting indicia and a non-projecting region, the panel being supported by the frame;

(d) an opaque coating on the non-projecting region, the opaque coating being substantially opaque to the light from the internal lighting;

(e) a first pigmented translucent coating on the indicia that is thicker at the center than at the sides of the indicia so that the intensity of light passing through the sides is substantially the same as the intensity of the light passing through the center of the indicia;

(f) additional pigmented coating air brushed onto the non-projecting region of the panel adjacent to the indicia, the additional coating being on top of the opaque coating, the additional coating being of substantially the same color as the first pigmented coating so that it appears that light from the lighting means passing through the indicia is reflected off the opaque non-projecting region to achieve the halo effect of neon lights; and

(g) a substantially transparent glossy coating over substantially the entire outer surface of the front panel, including over the translucent coating, the additional pigmented coating, and the opaque coating, so that at least the indicia appear glass-like.