# US 11,898,342 B2 · Stair installation bracket > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,898,342 B2 - Document ID: US11898342B2 - Status: Granted - Kind: B2 - Application number: 16/222,903 - Filed: 2018-12-17 - Published: 2019-04-25 - Granted: 2024-02-13 - Earliest claimed: 2017-01-17 - Assignees: Patco, LLC - Applicants: PatCo, LLC - Inventors: John Louis Vanker; Michael J. Lastowski - Web page: https://patentgrep.com/patent/US11898342B2 ## CPC - E04B 1/388: {Separate connecting elements (Connecting devices specially adapted for embedding in concrete E04B1/41; Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses E04B1/48)} - E04F 11/022: characterised by the supporting structure - E04B 2001/389: {Brackets} - E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001}) - E04F: FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B) ## Abstract In one implementation, a stair installation bracket for installing staircases in stairwells is provided. The bracket includes a bracket assembly configured to anchor to a wall of a stairwell, a hanger tool removably connected to the bracket assembly, and a positioning bolt for positioning a staircase relative to the wall. A method of installing a staircase using the bracket assembly includes positioning the staircase on tabs of one or more bracket assemblies, rotating the positioning bolt to vertically positioning the staircase relative to pilot holes of the bracket assembly, anchoring the staircase to the bracket assembly, and removing the hanger tool from the bracket assembly. ## Claims ### Claim 1 A system comprising: a staircase; and at least one staircase installation bracket assembly including a hanger tool including a vertical column and a lower tab and a positioning bolt positioned in the lower tab of the hanger tool, the at least one staircase installation bracket assembly configured to anchor the staircase to a wall, wherein the staircase installation bracket assembly is formed to include a channel for receiving the hanger tool, the hanger tool being removably connectable to the bracket assembly and including the positioning bolt for vertically positioning the staircase relative to the bracket assembly. ### Claim 2 (depends on 1) The system of claim 1 wherein the hanger tool is removably connectable to the bracket assembly via one or more headless bolts. ### Claim 3 (depends on 2) The system of claim 2 wherein the one or more headless bolts are configured to disengage from the hanger tool when rotated. ### Claim 4 (depends on 2) The system of claim 2 wherein the staircase is anchored to the staircase installation bracket assembly via the one or more headless bolts. ### Claim 5 (depends on 1) The system of claim 1 wherein the positioning bolt is positioned in a tab of the hanger tool. ### Claim 6 (depends on 1) The system of claim 1 wherein the hanger tool further includes a vertical column that fits into the channel of the bracket assembly. ### Claim 7 A system comprising: a staircase; and at least one staircase bracket installation assembly, the staircase bracket installation assembly comprising: a hanger tool including a vertical column and a lower tab; a positioning bolt positioned in the lower tab of the hanger tool; a front plate including one or more pilot holes for attaching the bracket assembly to a wall via one or more fasteners inserted through the one or more pilot holes of the front plate, and a channel assembly attached to the front plate and including a channel for receiving the hanger tool, the channel assembly including one or more pilot holes for receiving one or more headless bolts for attaching the hanger tool, the hanger tool including the positioning bolt for vertically positioning a landing of the staircase relative to the wall. ### Claim 8 (depends on 7) The system of claim 7, wherein the one or more headless bolts are configured to disengage from the hanger tool when rotated. ### Claim 9 (depends on 7) The system of claim 7, wherein the hanger tool includes one or more pilot holes arranged along a vertical column, the one or more pilot holes receiving one or more headless bolts. ### Claim 10 (depends on 9) The system of claim 9, wherein the positioning bolt of the hanger tool is inserted through a lower tab of the hanger tool, the lower tab extending from the vertical column of the hanger tool. ### Claim 11 (depends on 7) The system of claim 7, wherein the bracket assembly supports a landing of the staircase when the one or more headless bolts are rotated to engage with the landing. ### Claim 12 (depends on 7) The system of claim 7, wherein the one or more headless bolts are configured to attach the bracket assembly to the landing. ### Claim 13 (depends on 12) The system of claim 12, wherein the one or more headless bolts are configured to receive a nut to further secure the landing to the bracket assembly. ### Claim 14 A system comprising: a staircase; and a bracket comprising: a bracket assembly configured to be anchored to a wall of a stairwell containing the staircase, the bracket assembly including a channel, a hanger tool removably connected to the bracket assembly, the hanger tool including a vertical column and a lower tab, the vertical column being configured to fit into the channel of the bracket assembly, and a positioning bolt positioned in the lower tab of the hanger tool, the positioning bolt usable to vertically position the staircase relative to the wall. ### Claim 15 (depends on 14) The system of claim 14, wherein the hanger tool is removably connected to the bracket assembly via one or more headless bolts. ### Claim 16 (depends on 15) The system of claim 15, wherein the one or more headless bolts are configured to disengage from the hanger tool when rotated. ### Claim 17 (depends on 15) The system of claim 15, wherein the one or more headless bolts are configured to engage with the staircase when rotated, thereby anchoring the staircase to the bracket assembly. ### Claim 18 (depends on 17) The system of claim 17, the bracket further comprising: a nut for each of the one or more headless bolts, the nut further anchoring the staircase to the bracket assembly. ### Claim 19 (depends on 14) The system of claim 14, wherein the hanger tool includes one or more pilot holes arranged along the vertical column the one or more pilot holes receiving one or more headless bolts. ### Claim 20 (depends on 14) The system of claim 14, wherein the positioning bolt of the hanger tool is inserted through the lower tab of the hanger tool, the lower tab extending from the vertical column of the hanger tool.