Corner joints and methods of forming corner joints are described herein. The corner joints may provide the appearance of a mortise and tenon joint on both the exterior and interior surfaces of the corner joint, but include a mitered connection within the joint. Structures including at least one of t
Corner joints and methods of forming corner joints are described herein. The corner joints may provide the appearance of a mortise and tenon joint on both the exterior and interior surfaces of the corner joint, but include a mitered connection within the joint. Structures including at least one of the corner joints are also described.
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1. A corner joint comprising: a first frame member defining a longitudinal axis and comprising a first corner end, wherein the first corner end comprises a first mitered surface located between an inner squared flange and an outer squared flange, wherein the inner squared flange defines a first surf
1. A corner joint comprising: a first frame member defining a longitudinal axis and comprising a first corner end, wherein the first corner end comprises a first mitered surface located between an inner squared flange and an outer squared flange, wherein the inner squared flange defines a first surface on one side of the first mitered surface and the outer squared flange defines a second surface on an opposite side of the first mitered surface substantially parallel to the first surface such that the first mitered surface is located between the first and second surfaces, wherein the inner squared flange comprises a free edge aligned with the longitudinal axis of the first frame member and wherein the outer squared flange comprises a free edge aligned with the longitudinal axis of the first frame member; anda second frame member defining a longitudinal axis and comprising a second corner end, wherein the second corner end comprises a second mitered surface, an inner edge spaced longitudinally inwardly from the second mitered surface, and an outer edge spaced longitudinally inwardly from the second mitered surface, wherein the inner edge and outer edge extend transversely to the longitudinal axis of the second frame member, wherein the free edge of the inner squared flange on the first frame member faces the inner edge of the second frame member to form an inner joint aligned with the longitudinal axis of the first frame member, and wherein the free edge of the outer squared flange on the first frame member faces the outer edge of the second frame member to form an outer joint aligned with the longitudinal axis of the first frame member;wherein the first mitered surface faces the second mitered surface between the first surface of the inner squared flange and the second surface of the outer squared flange of the first frame member, wherein the first mitered surface and the second mitered surface define a miter joint plane that forms an acute angle with the longitudinal axis of the first frame member and an acute angle with the longitudinal axis of the second frame member. 2. A corner joint according to claim 1, wherein the first frame member comprises a first corner end opening, wherein the second frame member comprises a second corner end opening, and wherein the corner joint further comprises a corner key comprising a first leg and a second leg, wherein the first leg is located in the first corner end opening and the second leg is located in the second corner end opening. 3. A corner joint according to claim 2, wherein the corner joint comprises adhesive material located between the first surface of the inner squared flange and the corner key and adhesive material located between the second surface of the outer squared flange and the corner key. 4. A corner joint according to claim 1, wherein the corner joint comprises an adhesive injection port aligned with an adhesive orifice formed through a corner key located within the corner joint, wherein adhesive material introduced into the corner joint through the adhesive injection port passes through the adhesive orifice before being distributed in the corner joint. 5. A corner joint according to claim 4, wherein the corner key comprises a via connected to the adhesive orifice by a channel formed in a first surface of the corner key, wherein adhesive material passing through the adhesive orifice flows into the channel and through the via to a second surface of the corner key. 6. A corner joint according to claim 1, wherein the corner joint comprises adhesive material located between the first surface of the inner squared flange and the second frame member, and wherein the corner joint further comprises adhesive material located between the second surface of the outer squared flange and the second frame member. 7. A corner joint according to claim 6, wherein the corner joint further comprises a mechanical fastener connecting the first frame member and the second frame member. 8. A corner joint according to claim 7, wherein the adhesive material comprises silicone. 9. A corner joint according to claim 1, wherein adhesive material is located between the second surface of the outer squared flange and a corner key located within the corner joint, and wherein the corner key comprises a dam positioned beneath the free edge of the outer squared flange such that the adhesive material is not located between the free edge of the outer squared flange and the corner key. 10. A method of forming a corner joint, the method comprising: forming a first mitered surface on a first corner end of a first frame member, wherein the first mitered surface is located between an inner squared flange and an outer squared flange at the first corner end of the first frame member, wherein the inner squared flange defines a first surface on one side of the first mitered surface and the outer squared flange defines a second surface on an opposite side of the first frame member substantially parallel to the first surface such that the first mitered surface is located between the first and second surfaces, and wherein the inner squared flange comprises a free edge aligned with a longitudinal axis of the first frame member and the outer squared flange comprises a free edge aligned with the longitudinal axis of the first frame member;forming a second mitered surface on a second corner end of a second frame member;forming an inner edge on the second frame member that is spaced longitudinally inwardly from the second mitered surface along a longitudinal axis of the second frame member, and forming an outer edge on the second frame member that is spaced longitudinally inwardly from the second mitered surface, wherein the inner edge and outer edge extend transversely to the longitudinal axis of the second frame member;positioning the first frame member and the second frame member such that:the free edge of the inner squared flange on the first frame member faces the inner edge of the second frame member to form an inner joint aligned with the longitudinal axis of the first frame member;the free edge of the outer squared flange on the first frame member faces the outer edge of the second frame member to form an outer joint aligned with the longitudinal axis of the first frame member; andthe first mitered surface faces the second mitered surface between the first surface of the inner squared flange and the second surface of the outer squared flange of the first frame member, wherein the first mitered surface and the second mitered surface define a miter joint plane that forms an acute angle with the longitudinal axis of the first frame member and an acute angle with the longitudinal axis of the second frame member; andattaching the first frame member to the second frame member after positioning the first frame member and the second frame member such that the inner joint and the outer joint are formed. 11. A method according to claim 10, further comprising positioning a first leg of a corner key in a first corner opening of a first corner end of the first frame member and positioning a second leg of the corner key in a second corner opening of a second corner end of the second frame member. 12. A method according to claim 11, wherein the method further comprises providing adhesive material between the first surface of the inner squared flange and the corner key and between the second surface of the outer squared flange and the corner key. 13. A method according to claim 10, wherein the method further comprises injecting adhesive material into the corner joint through an adhesive injection port aligned with an adhesive orifice formed through a corner key located within the corner joint, wherein the adhesive material injected through the adhesive injection port passes through the adhesive orifice before being distributed in the corner joint. 14. A method according to claim 13, wherein the corner key comprises a via connected to the adhesive orifice by a channel formed in a first surface of the corner key, wherein the adhesive material injected through the adhesive orifice flows into the channel and through the via to a second surface of the corner key. 15. A method according to claim 9, wherein the method comprises: providing adhesive material between the first surface of the inner squared flange and the second frame member; andproviding adhesive material between the second surface of the outer squared flange and the second frame member. 16. A method according to claim 14, wherein the method comprises connecting the first frame member and the second frame member using a mechanical fastener. 17. A method according to claim 15, wherein the adhesive material comprises silicone. 18. A window or door frame comprising a first frame member and a second frame member attached to each other at a corner joint, wherein the corner joint comprises: a first frame member defining a longitudinal axis and comprising a first corner end, wherein the first corner end comprises a first mitered surface located between an inner squared flange and an outer squared flange, wherein the inner squared flange defines a first surface on one side of the first mitered surface and the outer squared flange defines a second surface on an opposite side of the first mitered surface substantially parallel to the first surface such that the first mitered surface is located between the first and second surfaces, wherein the inner squared flange comprises a free edge aligned with the longitudinal axis of the first frame member and wherein the outer squared flange comprises a free edge aligned with the longitudinal axis of the first frame member; anda second frame member defining a longitudinal axis and comprising a second corner end, wherein the second corner end comprises a second mitered surface, an inner edge spaced longitudinally inwardly from the second mitered surface, and an outer edge spaced longitudinally inwardly from the second mitered surface, wherein the inner edge and outer edge extend transversely to the longitudinal axis of the second frame member, wherein the free edge of the inner squared flange on the first frame member faces the inner edge of the second frame member to form an inner joint aligned with the longitudinal axis of the first frame member, and wherein the free edge of the outer squared flange on the first frame member faces the outer edge of the second frame member to form an outer joint aligned with the longitudinal axis of the first frame member;wherein the first mitered surface faces the second mitered surface between the first surface of the inner squared flange and the second surface of the outer squared flange of the first frame member, wherein the first mitered surface and the second mitered surface define a miter joint plane that forms an acute angle with the longitudinal axis of the first frame member and an acute angle with the longitudinal axis of the second frame member. 19. A window or door frame according to claim 18, wherein the first frame member comprises a first corner end opening, wherein the second frame member comprises a second corner end opening, and wherein the corner joint further comprises a corner key comprising a first leg and a second leg, wherein the first leg is located in the first corner end opening and the second leg is located in the second corner end opening. 20. A window or door frame according to claim 18, wherein the corner joint comprises adhesive material located between the first surface of the inner squared flange and the corner key and adhesive material located between the second surface of the outer squared flange and the corner key. 21. A window or door frame according to claim 18, wherein the corner joint comprises an adhesive injection port aligned with an adhesive orifice formed through a corner key located within the corner joint, wherein adhesive material introduced into the corner joint through the adhesive injection port passes through the adhesive orifice before being distributed in the corner joint. 22. A window or door frame according to claim 21, wherein the corner key comprises a via connected to the adhesive orifice by a channel formed in a first surface of the corner key, wherein adhesive material passing through the adhesive orifice flows into the channel and through the via to a second surface of the corner key. 23. A window or door frame according to claim 18, wherein the corner joint comprises adhesive material located between the first surface of the inner squared flange and the second frame member, and wherein the corner joint further comprises adhesive material located between the second surface of the outer squared flange and the second frame member. 24. A window or door frame according to claim 23, wherein the corner joint further comprises a mechanical fastener connecting the first frame member and the second frame member. 25. A window or door frame according to claim 24, wherein the adhesive material comprises silicone. 26. A window or door frame according to claim 18, wherein adhesive material is located between the second surface of the outer squared flange and a corner key located within the corner joint, and wherein the corner key comprises a dam positioned beneath the free edge of the outer squared flange such that the adhesive material is not located between the free edge of the outer squared flange and the corner key.
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