US2013283711A1PendingUtilityA1

Precision built staircase

Assignee: CUSSON LOUISEPriority: Aug 17, 2010Filed: Aug 17, 2011Published: Oct 31, 2013
Est. expiryAug 17, 2030(~4.1 yrs left)· nominal 20-yr term from priority
E04F 11/025E04F 11/108E04F 11/02E04F 2011/0207
33
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Claims

Abstract

A precision built staircase that includes a plurality of stringers that include a structural stringer, a decorative stringer and a winder stringer that are cut by a high precision machine, a universal skirt board, a plurality of risers with a pair of ends and a plurality of universal squares. The staircase also includes a plurality of winder treads wherein the stringers, the skirt board, the risers and the treads form a plurality of stairs, a recessed tread end cap, one or more cover joints and corner joints to cover a plurality of cuts, a decorative panel disposed on the back of staircase after the stairs are formed and a packaging box that stores a plurality of unassembled staircase components and that forms a cabinet or a closet when empty.

Claims

exact text as granted — not AI-modified
1 . A precision built staircase, comprising:
 a plurality of structural stringers;   at least one riser with one or more grooves disposed on said risers to accommodate any glue overflow or spillage from any glue utilized to secure said risers; and   at least one tread wherein said stringers, said risers and said treads form said staircase.   
     
     
         2 . The staircase according to  claim 1 , wherein said structural stringers are provided with at least one groove. 
     
     
         3 . The staircase according to  claim 1 , wherein said stringers are a selected one of a decorative stringer and a winder stringer. 
     
     
         4 . The staircase according to  claim 3 , wherein said stringers are cut by a high precision machine. 
     
     
         5 . The staircase according to  claim 1 , wherein said riser has at least one angled aperture, at least one pre-drilled aperture, at least one front riser groove and top of riser groove. 
     
     
         6 . The staircases according to  claim 1 , wherein said treads are a winder tread. 
     
     
         7 . The staircase according to  claim 1  or  6 , wherein said winder tread is a starter winder tread plank. 
     
     
         8 . The staircase according to  claim 7 , wherein said treads includes a tread radius and a tread groove. 
     
     
         9 . The staircase according to  claim 1 , wherein said treads include a recessed tread end cap. 
     
     
         10 . The staircase according to  claim 1 , wherein said winder treads are made of material selected from the group consisting of engineered material, laminated material, plywood material, composite material or kiln dried material. 
     
     
         11 . The staircase according to  claim 1 , wherein said staircase includes at least one universal skirt board, a plurality of universal squares with a horizontal top and one or more cover joints and corner joints to cover a plurality of cuts. 
     
     
         12 . The staircase according to  claim 11 , wherein said universal squares with said horizontal top are a reversible universal stringer support. 
     
     
         13 . The staircase according to  claim 12 , wherein one said groove connects said winder treads and one said groove connects one of said universal squares. 
     
     
         14 . The staircase according to  claim 11 , wherein said horizontal top accommodates a plurality of disposed auto-adhesive spacer pieces. 
     
     
         15 . The staircase according to  claim 14 , wherein said spacer pieces are made of material selected from the group consisting of cork, foam, rubber or felt. 
     
     
         16 . A precision built staircase, comprising:
 a plurality of stringers that include a structural stringer, a decorative stringer and a winder stringer that are cut by a high precision machine;   a pair of universal skirt boards attached face to face;   a plurality of risers with a pair of ends with one or more grooves disposed on said risers to accommodate any glue overflow or spillage from any glue utilized to secure said risers;   a plurality of universal squares with a horizontal top;   a plurality of winder treads wherein said stringers, said skirt board, said risers and said treads form a plurality of stairs;   a recessed tread end cap;   one or more cover joints and corner joints to cover a plurality of cuts;   a decorative panel disposed on said back of staircase after said stairs are formed;   a reversible universal stringer support; and   a tread rim extender.   
     
     
         17 . The staircase according to  claim 16 , wherein said high precision machine is a CNC router. 
     
     
         18 . The staircase according to  claim 16 , wherein said horizontal top accommodates a plurality of disposed auto-adhesive spacer pieces. 
     
     
         19 . The staircase according to  claim 18 , wherein said spacer pieces are made of material selected from the group consisting of cork, foam, rubber or felt. 
     
     
         20 . The staircase according to  claim 19 , wherein said spacer pieces are square-shaped, vertical-shaped, square-shaped or round-shaped and are installed at any angle. 
     
     
         21 . The staircase according to  claim 16 , wherein said risers are installed and precut at each said end at an approximate 45 degree angle or more. 
     
     
         22 . The staircase according to  claim 16 , wherein said winder treads are made of material selected from the group consisting of engineered material, laminated material, plywood material, composite material or kiln dried material. 
     
     
         23 . The staircase according to  claim 16 , wherein one said groove connects said winder tread and one of said risers and one said groove connects one of said universal squares. 
     
     
         24 . A precision built staircase, comprising:
 a plurality of stringers that include a structural stringer, a decorative stringer and a winder stringer that are cut by a CNC router;   a pair of universal skirt boards attached face to face;   a plurality of risers with a pair of ends with one or more grooves disposed on said risers to accommodate any glue overflow or spillage from any glue utilized to secure said risers;   a plurality of universal squares with a horizontal top;   a plurality of winder treads wherein said stringers, said skirt board, said risers and said treads form a plurality of stairs, wherein one said groove connects said winder tread and one of said risers and one said groove connects one of said universal squares;   a recessed tread end cap;   one or more cover joints and corner joints to cover a plurality of skirt board cuts;   a decorative panel disposed on said back of staircase after said stairs are formed;   a packaging box that stores a plurality of unassembled staircase components and that forms a cabinet or a closet when empty;   a reversible universal stringer support;   a tread rim extender;   a tread rim bloc;   a universal reversible support, a winder starter winder tread plank, a tread rim, a tread rim extender tread, an outside skirt board corner joint, a skirt board starter joint, a skirt board ender joint, a middle skirt board joint, a reversible stringer-tread support and a plurality of corresponding caps to accommodate installing said staircase with a plurality of attachment screws that includes a threaded portion with a distal end with a self-drill end and a non-threaded portion to accommodate a thickness of said tread.   
     
     
         25 . The staircase according to  claim 24 , wherein said horizontal top accommodates a plurality of disposed auto-adhesive spacer pieces. 
     
     
         26 . The staircase according to  claim 25 , wherein said spacer pieces are made of material selected from the group consisting of cork, foam, rubber or felt. 
     
     
         27 . The staircase according to  claim 25 , wherein said spacer pieces are square-shaped, vertical-shaped, square-shaped or round-shaped and are installed at any angle. 
     
     
         28 . The staircase according to  claim 24 , wherein said risers are installed and precut at each said end at an approximate 45 degree angle or more. 
     
     
         29 . The staircase according to  claim 24 , wherein said winder treads are made of material selected from the group consisting of engineered material, laminated material, plywood material, composite material or kiln dried material.

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