# US 2013/0152494 A1 · Stair tread overlay and method

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- Number: US 2013/0152494 A1
- Document ID: US20130152494A1
- Status: Published application
- Kind: A1
- Application number: 13/764,256
- Filed: 2013-02-11
- Published: 2013-06-20
- Earliest claimed: 2009-07-17
- Inventors: Robert H. YOUNG
- Web page: https://patentgrep.com/patent/US20130152494A1

## CPC

- E04F 11/104: Treads
- E04F 11/108: of wood {or with an upper layer of wood}
- E04F 11/163: {Protecting means for edges or corners}
- E04F 11/175: {Covering panels for tread restoration}
- E04F 2201/0107: by moving the sheets, plates or panels substantially in their own plane, perpendicular to the abutting edges
- Y10T 29/49623: Static structure, e.g., a building component
- E04F: FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A stair tread overlay includes a tread and a front nosing attached to a front edge of the tread by a tongue and groove joint to provide a strong mechanical joint between the nosing and tread. Adhesive may be applied at the tongue and groove joint to enhance the strength of the joint. A horizontally symmetrical side nosing having a profile matching the profile of the front nosing may be attached an edge of the tread adjacent to the front nosing. The stair tread and nosings may be in the form of a kit used to cover an existing staircase to enhance the appearance of the staircase. The method of making the overlay is also disclosed.

## Claims

### Claim 1

A stair tread overlay for a staircase, comprising:
an elongated front nosing having the other of a tongue or groove on a side thereof;
a generally planar stair tread having a an outer surface and an inner surface and one of a tongue or groove along an edge thereof;
said tongue and groove of said tread and front nosing secured together to form a joint to thereby connect said front nosing to said tread;
said top surface of said tread being flush with a top surface of said front nosing; and
said front nosing extending in a direction away from said inner surface of said tread.

### Claim at position 2

2-9. (canceled)

### Claim 10

A method of making a stair tread overlay, comprising the steps of:
providing a generally planar stair tread having a outer surface, an inner surface and end surfaces between the outer and inner surfaces;
forming one of a tongue or groove in one of the end surfaces of the stair tread;
providing a front nosing having an inner surface and an outer surface;
forming the other of a tongue or groove along the inner surface of the front nosing;
mating the tongue and the groove and thereby securing the front nosing to the stair tread, and
machining the tread after the steps of mating the tongue and groove and securing the tongue and groove with adhesive.

### Claim at position 4

11-15. (canceled)

### Claim 16

A staircase installed in a building to provide personnel access between connected floors of the building, comprising:
a set of stairs including treads and risers supported by a stringer;
an overlay covering said stairs;
said overlay including a stair tread portion and a front nosing attached to said tread portion along one end of said tread portion;
said tread portion and said front nosing secured by a tongue and groove joint extending along the lengths of said tread portion and said front nosing.

### Claim at position 6

17-20. (canceled)

### Claim 21 (depends on 1)

The overlay of claim 1, further including an adhesive secures said front nosing and said tread.

### Claim 22 (depends on 1)

The overlay of claim 1, further including a side nosing attached to a second edge of said tread.

### Claim 23 (depends on 22)

The overlay of claim 22, wherein said side nosing has a profile that matches the profile of said front nosing.

### Claim 24 (depends on 10)

The method of claim 10, further comprising the step of providing side nosing having a profile matching the profile of the front nosing and having a length greater than the width of the stair tread.

### Claim 25 (depends on 10)

The method of claim 10, further comprising the step of cutting the side nosing to a length to fit the length of the stair tread when applied to an existing staircase.

### Claim 26 (depends on 24)

The method of claim 24, further comprising the step of securing the side nosing to an edge of the stair tread adjacent to the front nosing.

### Claim 27 (depends on 16)

The staircase of claim 16, further comprising a side nosing attached to said tread portion of said overlay at an edge adjacent to said front nosing.

### Claim 28 (depends on 16)

The staircase of claim 16, wherein a top surface of said tread portion is flush with a top surface of said front nosing.

### Claim 29 (depends on 16)

The staircase of claim 16, wherein said joint includes adhesive between said tread portion and said front nosing.

### Claim 30 (depends on 16)

The staircase of claim 16, wherein the profile of said side nosing matches the profile of said front nosing.