Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
93 words
A method of making a frame for a curved staircase comprising: mounting a plurality of right-angled braces along an elongated first metal bar to define the riser portions and tread portions of one side of the stairs of said staircase, forming said first metal bar into a desirable shape defined by the curvature and pitch of the staircase, contacting said first metal bar and its attached braces with a second elongated metal bar substantially throughout their lengths, and securing said first and second metal bars together along the length of the contacting bars.
Claim 2
Independent Claim
93 words
A method of making a frame for a curved staircase comprising: mounting a plurality of right-angled braces along an elongated first metal bar to define the riser portions and tread portions of one side of the stairs of said staircase, forming said first metal bar into a desirable shape defined by the curvature and pitch of the staircase, contacting said first metal bar and its attached braces with a second elongated metal bar substantially throughout their lengths, and securing said first and second metal bars together along the length of the contacting bars.
Claim 3
Dependent Claim
50 words
The method of claim 1 wherein said steps of forming and contacting comprise: placing said second bar in a jig providing a curved surface defined by the desired curve of said staircase, and then contacting said second metal bar with said first metal bar substantially along their entire respective lengths.
Claim 4
Dependent Claim
48 words
The method of claim 1 wherein said step of securing comprises: welding said first and second elongated metal bars together at spaced intervals along their lengths whereby when said framework is removed from said jig, it retains the desired shape defined by said curved surface of said jig.
Claim 5
Dependent Claim
22 words
The method of claim 1 further comprising the step of forming said braces by mitering angle-irons together to provide a right-angle brace.
Claim 6
Dependent Claim
80 words
A method of forming a staircase comprising: forming first and second side metal frames according to claim 1 wherein each of said braces define at least one aperture along the tread portion thereof and an aperture along the riser portion thereof, and securing the risers and treads to their respective brace portions of said first and second metal frames by inserting a wood screw through the proper apertures of said brace and securing the same to the riser and tread.
Claim 7
Dependent Claim
72 words
In a method of fabricating a framework for a curved staircase, the steps of contacting a first metal bar formed in a curve defined by the curvature of said staircase with a second elongated metal bar substantially throughout their respective lengths; and securing said first and second metal bar together in said curved relationship substantially throughout their lengths whereby when said bars are released, they will cooperate to maintain said curved relation.
Claim 8
Dependent Claim
72 words
In a method of fabricating a framework for a curved staircase, the steps of contacting a first metal bar formed in a curve defined by the curvature of said staircase with a second elongated metal bar substantially throughout their respective lengths; and securing said first and second metal bar together in said curved relationship substantially throughout their lengths whereby when said bars are released, they will cooperate to maintain said curved relation.