Stair Nose Assembly and Method of Installation

Abstract

A two-piece stair nosing assembly is used in new construction and the reconstruction and repair of stairs, primarily for industrial and commercial applications. The stair nosing assembly comprises a metal base member and a metal upper member. The base member includes one or more anchors embedded in uncured concrete which, when cured, secures the base member to the stair pan. The upper member is detachably attached to the base member and can serve as both a protective cover during the cast-in-place process and as a tread surface after the cast-in-place process is completed and the stairs are ready for use.

What is claimed is: 
     
         1 . A stair nose assembly comprising:
 An elongated base member having an upper surface and an anchor member, said base member being configured to be mounted in a concrete stair step using a cast-in-place process; and   An elongated upper member having a tread surface and an opposing protective cover surface configured so that the upper member protects the base member during the cast-in-place process and as a tread surface after the cast-in-place process.   
     
     
         2 . The stair nose assembly of  claim 1  wherein the tread surface of the upper member contacts the upper surface of the base member prior to and during the cast-in-place process. 
     
     
         3 . The stair nose assembly of  claim 1  further comprising a first film covering the tread surface and a second film covering the opposed protective cover surface. 
     
     
         4 . The stair nose assembly of  claim 1  wherein the tread surface of the upper member includes a high friction area. 
     
     
         5 . The stair nose assembly of  claim 1  further comprising a photoluminescent member supported by the tread surface. 
     
     
         6 . A stair nose assembly comprising:
 An elongated base member having an upper surface and an anchor member, said base member being configured to be mounted in a concrete stair step using a cast-in-place process;   An elongated upper member having a tread surface and an opposing protective cover surface configured so that the upper member protects the base member during the cast-in-place process and as a tread surface after the cast-in-place process;   a first film covering the tread surface; and   a second film covering the opposed protective cover surface,   wherein the tread surface of the upper member contacts the upper surface of the base member prior to and during the cast-in-place process.   
     
     
         7 . The stair nose assembly of  claim 6  wherein the tread surface of the upper member includes a high friction area. 
     
     
         8 . The stair nose assembly of  claim 6  further comprising a photoluminescent member supported by the tread surface. 
     
     
         9 . A stair nose assembly comprising:
 An elongated base member having an upper surface and an anchor member, said base member being configured to be mounted in a concrete stair step using a cast-in-place process;   An elongated upper member having a tread surface and an opposing protective cover surface configured so that the upper member protects the base member during the cast-in-place process and as a tread surface after the cast-in-place process;   a first film covering the tread surface;   a second film covering the opposed protective cover surface;   a photoluminescent member supported by the tread surface,   wherein the tread surface of the upper member contacts the upper surface of the base member prior to and during the cast-in-place process.   
     
     
         10 . The stair nose assembly of  claim 6  wherein the tread surface of the upper member includes a high friction area. 
     
     
         11 . A method of installing the stair nosing assembly comprising the steps of:
 providing a stair nose assembly having a base member with an upper surface, an upper member having a tread surface and an opposing protective cover surface, a first film covering the tread surface; and a second film covering the opposed protective cover surface,   pouring concrete mix into a step pan;   placing the stair nosing assembly into the uncured concrete with the base member detachably attached to the upper member and with the protective cover surface of the upper member facing upward;   following curing of the concrete, detaching the upper member from the base member;   flipping the upper member over and removing the first film on the tread surface;   removing the second film from the protective cover surface; and   reattaching the upper member to the base member with the protective cover side adjacent to the upper surface of the base member and the tread surface facing up.