Door skin, method of etching plate for forming wood grain pattern in door skin, and etched plate formed therefrom

Patent metadata

Field	Value
Publication number	US-10648225-B2
Application number	US-201815985866-A
Country	US
Kind code	B2
Filing date	May 22, 2018
Priority date	Jan 17, 2003
Publication date	May 12, 2020
Grant date	May 12, 2020

Abstract

The present invention is directed to a door skin having an exterior surface with an woodgrain pattern formed therein, and an etched plate for use as an embossing plate or with a molded die set, for forming the woodgrain pattern in the door skin. The exterior surface has outer portions lying on a first plane, spaced grooves recessed from the plane of the outer portions, and halftone portions. The halftone portions have spaced protrusions defined by channels, wherein the channels are recessed from the plane of the outer portions.

First claim

What is claimed is:

1. A stained molded door skin, comprising a molded component having a stained exterior surface comprising stiles, rails and panels with molded grooves and molded halftone portions stained with a stain;
the molded grooves configured with variable depths and lengths with respect to one another and variably spaced with respect to one another to collectively simulate an appearance of a naturally appearing wood grain tick pattern;
the molded halftone portions retaining a sufficient amount of the stain to simulate an appearance of a darkened naturally appearing wood grain background tone.

2. The stained molded door skin of claim 1 , wherein a first area of the stained exterior surface has a first density of the molded halftone portions retaining a first amount of the stain to provide a first tone, wherein a second area of the stained exterior surface has a second density of the molded halftone portions retaining a second amount of the stain to provide a second tone, and wherein the first tone differs from the second tone to simulate multiple naturally appearing wood background tones of different degrees of darkness.

3. The stained molded door skin of claim 1 , wherein a first area of the stained exterior surface has a plurality of the molded halftone portions disposed between a first plurality of the molded grooves to retain a first amount of the stain to provide a first tone, wherein a second area of the stained exterior surface has none of the molded halftone portions between a second plurality of the molded grooves.

4. The stained molded door skin of claim 1 , wherein the molded component comprises a sheet molding compound, polystyrene, or polypropylene.

5. The stained molded door skin of claim 1 , wherein the molded component comprises medium density fiberboard or hardboard.

6. The stained molded door skin of claim 1 , wherein the molded door skin is sized as an interior or exterior passage door skin.

7. The stained molded door skin of claim 1 , wherein the molded halftone portions comprise recesses receiving sufficient stain to simulate the appearance of the darkened naturally appearing wood grain background tone.

8. The stained molded door skin of claim 1 , wherein:
the molded grooves are separated from one another by outer portions arranged on the stained exterior surface; and
a plurality of the molded halftone portions are situated in the outer portions between the grooves.

9. The stained molded door skin of claim 1 , wherein:
the molded grooves are separated from one another by outer portions arranged on the stained exterior surface, the molded grooves having first depths; and
the molded halftone portions comprise recesses situated in the outer portions between the molded grooves and retain sufficient stain to simulate the appearance of the darkened naturally appearing wood grain background tone, the recesses having second depths that are less than the first depths.

10. The stained molded door skin of claim 1 , wherein the molded grooves and the molded halftone portions of the stiles and the rails simulate the appearance of a first wood species, and wherein the molded grooves and the molded halftone portions of the panels stimulate the appearance of a different second wood species.

11. A door selected from an interior passage door or an exterior passage door, the door comprising:
a frame having opposite first and second sides; and
a first stained molded door skin sized as an interior or exterior passage door skin, the first stained molded door skin secured to the first side of the frame and comprising a first molded component having a first stained exterior surface comprising first stiles, first rails and first panels with molded first grooves and molded first halftone portions stained with a stain;
the molded first grooves configured with variable depths and lengths with respect to one another and variably spaced with respect to one another to collectively simulate an appearance of a first naturally appearing wood grain tick pattern;
the molded first halftone portions retaining a sufficient amount of the stain to simulate an appearance of a first darkened naturally appearing wood grain background tone.

12. The door of claim 11 , further comprising a second molded door skin secured to the second side of the frame and comprising a second molded component having a second stained exterior surface comprising second stiles, second rails, and second panels with molded second grooves and molded second halftone portions stained with the stain, the molded second grooves configured with variable depths and lengths with respect to one another and variably spaced with respect to one another to collectively simulate an appearance of a second naturally appearing wood grain tick pattern, the molded second halftone portions configured to receive and retain additional stain to simulate an appearance of a second darkened naturally appearing wood grain background tone.

13. The door of claim 11 , wherein a first area of the first stained exterior surface has a first density of the molded first halftone portions retaining a first amount of the stain to provide a first tone, wherein a second area of the first stained exterior surface has a second density of the molded first halftone portions retaining a second amount of the stain to provide a second tone, and wherein the first tone differs from the second tone to simulate multiple naturally appearing wood background tones of different degrees of darkness.

14. The door of claim 11 , wherein a first area of the first stained exterior surface has a plurality of the molded first halftone portions disposed between a first plurality of the molded first grooves to retain a first amount of the stain to provide a first tone, wherein a second area of the first stained exterior surface has none of the molded first halftone portions between a second plurality of the grooves.

15. The door of claim 11 , wherein the first molded component comprises a sheet molding compound, polystyrene, or polypropylene.

16. The door of claim 11 , wherein the first molded component comprises medium density fiberboard or hardboard.

17. The door of claim 11 , wherein the molded first halftone portions comprise recesses receiving sufficient stain to simulate the appearance of the first darkened naturally appearing wood grain background tone.

18. The door of claim 11 , wherein:
the molded first grooves are separated from one another by outer portions arranged on the first stained exterior surface; and
a plurality of the molded first halftone portions are situated in the outer portions between the molded first grooves.

19. The door of claim 11 , wherein:
the molded first grooves are separated from one another by outer portions arranged on the first stained exterior surface, the molded first grooves having first depths; and
the molded first halftone portions comprise recesses situated in the outer portions between the grooves and retain sufficient stain to simulate the appearance of the first darkened naturally appearing wood grain background tone, the recesses having second depths that are less than the first depths.

20. The door of claim 11 , wherein the molded first grooves and the molded first halftone portions of the first stiles and the first rails simulate the appearance of a first wood species, and wherein the molded first grooves and the molded first halftone portions of the first panels stimulate the appearance of a different second wood species.

Assignees

• Masonite Corp

Inventors

• Luetgert Karine
• Melonio Christ Henry

Classifications

• Y10T428/24058

  including grain, strips, or filamentary elements in respective layers or components in angular relation · CPC title

• Y10T428/24438

  Artificial wood or leather grain surface · CPC title

• B21D22/00

  Shaping without cutting, by stamping, spinning, or deep-drawing (otherwise than using rigid devices or tools or yieldable or resilient pads B21D26/00) · CPC title

• Y10T156/1039

  Surface deformation only of sandwich or lamina [e.g., embossed panels] · CPC title

• B32B3/30

  characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)} · CPC title