Abstract Building structure for finishing a building opening in a wall including a pair of foamed synthetic resin elongated members having a generally L-shaped cross section including first portions adapted to extend in the planes of the opposite side surfaces of the wall, which first portions converge slightly toward each other in assembly to facilitate tight securing of the elongated members at the edge of the building opening, said elongated members cross sections further including second portions extending toward each other through the building opening at the edge thereof, one of which includes a third portion forming a longitudinal slot for receiving the end of the second portion of the cross section of the other of the elongated members whereby the building structure may be installed in walls having different thickness, said third portion of the one elongated member cooperating with offsets in the first portions of the elongated members to space the second portions of the elongated members from the frame of the wall opening at the edge of the opening. Mitered joints are provided between pairs of such elongated members including an L-shaped bracket extending into the slots at the mitered joints for securing the mitered joints together, which L-shaped brackets have Ridges on the ends thereof extending into grooves within the slots in the third portion of the one elongated members at the mitered joints and notches in the other elongated members at the mitered joints for accommodating the L-shaped brackets.
Building structure for finishing a door opening in a wall or the like comprising a pair of elongated members at each side and at the head of a door opening, each of said pair of elongated members having a generally L-shaped cross section including first portions adapted to extend along the surface of the wall at the door opening therein which converge slightly toward each other outwardly of the door opening whereby on installation at the edge of the opening in the wall thE first portions of the elongated members will fit snugly against the wall, each of said elongated members including second cross section portions adapted to extend toward each other at the edge of the opening in the wall, one of said L-shaped members including a U-shaped third cross section portion at the end of the second portion thereof receiving the end of the second portion of the cross section of the other Lshaped member including an outer leg which is offset inwardly of the opening of the wall to form a stop and an inner leg which is offset outwardly of the door opening and spaces the second portions of the elongated members from the building opening, each of the first portions of the cross section of the elongated members also including offsets therein to provide an abutment for spacing the second portions of the cross section of the elongated members from the frame of the opening in the wall which offsets are located from the second portions of the cross section of the elongated members the same distance as the thickness of the inner leg of the U-shaped third portion of the one elongated member so that the elongated members are spaced from the frame of the opening at three points, and means for mitering the corners of the building structure at the intersection between the pairs of elongated members at the sides and head of the opening comprising an L-shaped bracket adapted to fit within the U-shaped cross section of the third portion of the adjacent one elongated members at the mitered corners.
Claim 2
Dependent Claim
348 words
Building structure for finishing a door opening in a wall or the like comprising a pair of elongated members at each side and at the head of a door opening, each of said pair of elongated members having a generally L-shaped cross section including first portions adapted to extend along the surface of the wall at the door opening therein which converge slightly toward each other outwardly of the door opening whereby on installation at the edge of the opening in the wall thE first portions of the elongated members will fit snugly against the wall, each of said elongated members including second cross section portions adapted to extend toward each other at the edge of the opening in the wall, one of said L-shaped members including a U-shaped third cross section portion at the end of the second portion thereof receiving the end of the second portion of the cross section of the other Lshaped member including an outer leg which is offset inwardly of the opening of the wall to form a stop and an inner leg which is offset outwardly of the door opening and spaces the second portions of the elongated members from the building opening, each of the first portions of the cross section of the elongated members also including offsets therein to provide an abutment for spacing the second portions of the cross section of the elongated members from the frame of the opening in the wall which offsets are located from the second portions of the cross section of the elongated members the same distance as the thickness of the inner leg of the U-shaped third portion of the one elongated member so that the elongated members are spaced from the frame of the opening at three points, and means for mitering the corners of the building structure at the intersection between the pairs of elongated members at the sides and head of the opening comprising an L-shaped bracket adapted to fit within the U-shaped cross section of the third portion of the adjacent one elongated members at the mitered corners.
Claim 3
Dependent Claim
101 words
Structure as set forth in claim 1 wherein the means for mitering the corners of the building structure at the intersection between the pairs of elongated members further includes grooves extending into the U-shaped third portion of the cross section of the first elongated members from the open edge thereof adjacent to but spaced from the corners and further including ridges on the free ends of the L-shaped bracket for holding the bracket within the U-shaped cross section portion on insertion of the L-shaped bracket into the U-shaped cross section portion from the open edge of the U-shaped cross section portion.
Claim 4
Dependent Claim
65 words
Structure as set forth in claim 2 wherein the mitering means further includes a notch in the end of the other of said elongated members adjacent the mitered corners of the building structure to provide room for the L-shaped bracket in the U-shaped cross section third portion of the one elongated member and to hold the L-shaped bracket in assembly in the one L-shaped member.