FIELD FORMABLE STEP NOSE SYSTEM
First Claim
Patent Images
1. Step nose system apparatus comprising:
- a step nose strip having a tread portion and a riser portion;
the tread portion having a receiving slot formed therein; and
the riser portion having a hook formed as part thereof, the tread and riser portions being bendable and stretchable with respect to one another so as to enable the hook to interlockingly engage the slot.
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Accused Products
Abstract
A step nose is formed having a tread portion and a riser portion, formed initially as a flat strip, the tread portion having a receiving slot formed therein, and the riser portion having a hook formed as part thereof. The tread and riser portions are stretchable with respect to one another so as to enable the hook to interlockingly engage the slot when the tread and riser portions of the flat strip are bent towards one another to thereby form a step nose ready for installation. Machines are further disclosed for forming the flat step nose strip into an assembled state by bending the tread and riser portions and interlocking them together.
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Citations
30 Claims
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1. Step nose system apparatus comprising:
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a step nose strip having a tread portion and a riser portion; the tread portion having a receiving slot formed therein; and the riser portion having a hook formed as part thereof, the tread and riser portions being bendable and stretchable with respect to one another so as to enable the hook to interlockingly engage the slot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 22, 23, 24, 28, 29, 30)
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14. Step nose system apparatus comprising:
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a step nose strip having a tread portion and a riser portion; the tread portion having a receiving slot formed therein; and the riser portion having a hook formed as part thereof, the hook and slot being shaped and dimensioned such that the hook may be forced into mating relation with the slot when the tread and riser portions are bent towards one another.
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21. A machine for forming a step nose strip into a bent installable form wherein the step nose strip has a riser portion with a hook formed as a part thereof and a tread portion having a receiving slot formed therein, the machine comprising:
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a first roller and a plurality of cooperating guides for initially bending the step nose strip; a wheel having a circular flange thereon and positioned to cooperate with the first roller to stretch the riser portion of the step nose downwardly and inwardly; and a mechanical element providing a surface disposed opposite said circular flange, said surface cooperating with said flange to cause interlocking of said hook with said slot
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25. Step nose system apparatus comprising:
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a step nose strip having a tread portion and a riser portion; an end cap; and a barbed harpoon connector for attaching the end cap to the step nose strip. - View Dependent Claims (26, 27)
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Specification