Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
302 words
A window or door construction comprising a rectangular frame defined by frame members of identical cross sectional shape, each of said frame members comprising a central bar portion sandwiched between two side bar portions, said side bar portions extending inwardly of said frame beyond said central bar portion so as to form a longitudinally extending inwardly opening channel defined by the inner surface of said central bar portion and the opposed inner surfaces of said side bar portions, at least two said frame members being joined at right angles to one another at the corner of said frame, a first one of said joining members having end portions of said side bar portions recessed from the end of said central bar portion a distance equal to the depth of said channel, the end portion of said central bar portion of said first member thereby projecting beyond the ends of said recessed side bar portions as a tongue which is received with a close fit in said channel of the second of said two joining members, end surfaces of said central bar portion and side bar portions of said second member being flush with outer surfaces of the respective bar portions of said first member and end surfaces of said side bar portions of said first member abutting inner edges of respective side bar portions of said second member, said tongue portion of said first member having a longitudinally extending hole therein and an end portion of said central bar portion of said second portion having a transverse hole aligned therewith, a panel having marginal edge portions received in said channels of said frame members, and fastening means in said aligned holes releasably securing said frame members together at the corners of said frame and thereby removably holding said panel in said frame.
Claim 2
Dependent Claim
302 words
A window or door construction comprising a rectangular frame defined by frame members of identical cross sectional shape, each of said frame members comprising a central bar portion sandwiched between two side bar portions, said side bar portions extending inwardly of said frame beyond said central bar portion so as to form a longitudinally extending inwardly opening channel defined by the inner surface of said central bar portion and the opposed inner surfaces of said side bar portions, at least two said frame members being joined at right angles to one another at the corner of said frame, a first one of said joining members having end portions of said side bar portions recessed from the end of said central bar portion a distance equal to the depth of said channel, the end portion of said central bar portion of said first member thereby projecting beyond the ends of said recessed side bar portions as a tongue which is received with a close fit in said channel of the second of said two joining members, end surfaces of said central bar portion and side bar portions of said second member being flush with outer surfaces of the respective bar portions of said first member and end surfaces of said side bar portions of said first member abutting inner edges of respective side bar portions of said second member, said tongue portion of said first member having a longitudinally extending hole therein and an end portion of said central bar portion of said second portion having a transverse hole aligned therewith, a panel having marginal edge portions received in said channels of said frame members, and fastening means in said aligned holes releasably securing said frame members together at the corners of said frame and thereby removably holding said panel in said frame.
Claim 3
Dependent Claim
39 words
A construction according to claim 1, in which one said side bar portion of each of said frame members projects outwardly of said frame beyond the respective central bar portion so as to form an outwardly projecting peripheral flange.
Claim 4
Dependent Claim
62 words
A construction according to claim 1, in which, the edges of said side bar portions inwardly of said frame of each of said frame members are bevelled and in which end surfaces of respective side bar portions of said first members at said corner joint are correspondingly bevelled to abut and fit end portions of side bar portions of said second member.
Claim 5
Dependent Claim
47 words
A construction according to claim 1, in which elastic material of U-shaped cross section is received in said channel of the frame and the margined edge portion of said panel is received in said elastic material, whereby said panel is cushioned against any flexing of said frame.
Claim 6
Dependent Claim
75 words
A construction according to claim 1, in which said central bar portion of said first member at said corner joint has a cylindrical recess intersecting said hole in said tongue and of larger diameter than said hole, and in which said fastening means comprises a cylindrical member received in said recess and having a threaded hole aligned with said aligned holes and a bolt extending through said aligned holes and screwed into said threaded hole.
Claim 7
Dependent Claim
33 words
A construction according to claim 5, in which said cylindrical member has a screwdriver slot in its outer end for rotating said cylindrical member to align said threaded hole with said aligned holes.
Claim 8
Dependent Claim
37 words
A construction according to claim 5, in which said recess extends inwardly from the outer surface of the central bar portion of said first member and has a depth equal to the length of said cylindrical member.