# US 12,000,201 B1 · Jamb-hung secondary door and method of installation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,000,201 B1 - Document ID: US12000201B1 - Status: Granted - Kind: B1 - Application number: 18/199,352 - Filed: 2023-05-18 - Granted: 2024-06-04 - Earliest claimed: 2019-12-04 - Assignees: Unique Home Designs, Inc. - Applicants: Unique Home Designs, Inc. - Inventors: Lawrence Chavez - Web page: https://patentgrep.com/patent/US12000201B1 ## CPC - E06B 1/6015: {Anchoring means (E06B1/6007, E06B1/6046 - E06B1/6092 take precedence)} - E06B 1/12: Metal frames - E06B 1/52: Frames specially adapted for doors - E06B 5/003: {Storm doors; Combination-screen-and-storm-doors} - E06B 3/325: {Wings opening towards the outside} - E06B: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES (shades or blinds for greenhouses A01G9/22; curtains A47H; lids for car boots or bonnets B62D25/10; skylights E04B7/18; sunshades, awnings E04F10/00) ## Abstract A method of installing a combination door unit into a threshold of a house, comprising placing a combination door unit within a threshold opening of a house surrounded by a plurality of house frame studs. The combination door unit comprises a door frame, a threshold door hingedly coupled to the door frame, and a secondary door. The secondary door is hingedly coupled to a mounting frame and the mounting frame, the door frame, and the plurality of house frame studs are aligned when the combination door unit is placed within the threshold opening. The method of installing the combination door unit may also comprise the steps of leveling the combination door unit, removing the secondary door from the combination door unit, driving a plurality of fasteners through the mounting frame, through the door frame, and into the house frame studs, and replacing the secondary door on the combination door unit. ## Claims ### Claim 1 A method of installing a combination door unit within a threshold opening of a house, the method comprising: placing a preassembled combination door unit within a threshold opening of a house, the combination door unit comprising a door frame, a threshold door hingedly coupled to the door frame, a mounting frame formed separate from and fixedly coupled to the door frame, and a secondary door configured to pivotally couple to the mounting frame; securing the combination door unit within the threshold opening of the house; and after securing the combination door unit, installing the secondary door on the combination door unit. ### Claim 2 (depends on 1) The method of claim 1, wherein installing the secondary door on the combination door unit comprises pivotally coupling the secondary door to the mounting frame. ### Claim 3 (depends on 2) The method of claim 2, wherein pivotally coupling the secondary door to the mounting frame comprises inserting at least two pins into at least two corresponding receivers. ### Claim 4 (depends on 1) The method of claim 1, wherein installing the secondary door on the combination door unit comprises inserting at least two pins into at least two corresponding receivers. ### Claim 5 (depends on 1) The method of claim 1, further comprising leveling the combination door unit by inserting a plurality of shims around the combination door unit. ### Claim 6 (depends on 1) The method of claim 1, further comprising driving a plurality of fasteners through the mounting frame and the door frame. ### Claim 7 (depends on 1) The method of claim 1, wherein the secondary door is configured to be removable from the combination door unit when the secondary door is in an open position. ### Claim 8 A combination door unit assembly for a threshold opening of a house, comprising: a combination door unit configured to be installed within a threshold opening of a house as a preassembled unit, the combination door unit comprising: a door frame configured to couple with the threshold opening of the house; a threshold door hingedly coupled to the door frame; and a mounting frame formed separate from and coupled to the door frame; and a secondary door configured to pivotally couple to the combination door unit through a plurality of pins sliding into a plurality of corresponding receivers to couple the secondary door to the combination door unit through the mounting frame. ### Claim 9 (depends on 8) The combination door unit of claim 8, wherein the mounting frame is coupled to the door frame through a plurality of screws. ### Claim 10 (depends on 8) The combination door unit of claim 8, wherein the secondary door is configured to be removable from the combination door unit when the secondary door is in an open position. ### Claim 11 (depends on 8) The combination door unit of claim 8, wherein the mounting frame having at least three sides, wherein each of the at least three sides of the mounting frame is formed separate from the door frame and fixedly coupled to the door frame. ### Claim 12 (depends on 8) The combination door unit of claim 8, wherein the mounting frame having at least three sides, wherein each of the three sides of the mounting frame is formed separate from the door frame and separately coupled to the door frame. ### Claim 13 (depends on 8) The combination door unit of claim 8, wherein the secondary door is configured to pivotally couple to the combination door unit through inserting a plurality of pins into a plurality of corresponding receivers. ### Claim 14 A method of installing a combination door unit within a threshold opening of a house, the method comprising: placing a preassembled combination door unit within a threshold opening of a house, the combination door unit comprising a door frame, a threshold door hingedly coupled to the door frame, a mounting frame having at least three sides, wherein each of the at least three sides is formed separate from the door frame and then fixedly coupled to the door frame, and a secondary door configured to pivotally couple to the mounting frame; securing the combination door unit within the threshold opening of the house; and after securing the combination door unit, installing the secondary door on the combination door unit. ### Claim 15 (depends on 14) The method of claim 14, wherein fixedly coupling each of the at least three sides to the door frame comprises separately coupling each of the at least three sides to the door frame. ### Claim 16 (depends on 14) The method of claim 14, wherein installing the secondary door on the combination door unit comprises pivotally coupling the secondary door to the mounting frame. ### Claim 17 (depends on 15) The method of claim 15, wherein pivotally coupling the secondary door to the mounting frame comprises inserting at least two pins into at least two corresponding receivers. ### Claim 18 (depends on 15) The method of claim 15, wherein pivotally coupling the secondary door to the mounting frame comprises inserting a plurality of pins into a plurality of corresponding receivers. ### Claim 19 (depends on 14) The method of claim 14, further comprising driving a plurality of fasteners through the mounting frame and the door frame. ### Claim 20 (depends on 14) The method of claim 14, wherein the secondary door is configured to be removable from the combination door unit when the secondary door is in an open position. ### Claim 21 A combination door unit assembly for a threshold opening of a house, comprising: a combination door unit configured to be installed within a threshold opening of a house as a preassembled unit, the combination door unit comprising: a door frame configured to couple with the threshold opening of the house; a threshold door hingedly coupled to the door frame; and a mounting frame having a plurality of sides each formed separate from the door frame and fixedly coupled to the door frame; and a secondary door configured to pivotally couple to the combination door unit. ### Claim 22 (depends on 21) The combination door unit of claim 21, wherein the mounting frame is coupled to the door frame through a plurality of screws. ### Claim 23 (depends on 21) The combination door unit of claim 21, wherein the secondary door is configured to be removable from the combination door unit when the secondary door is in an open position. ### Claim 24 (depends on 21) The combination door unit of claim 21, wherein the mounting frame plurality of sides having at least three sides separately coupled to the door frame. ### Claim 25 (depends on 21) The combination door unit of claim 21, wherein the secondary door is configured to pivotally couple to the combination door unit through inserting a plurality of pins into a plurality of corresponding receivers.