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US 6,886,660 B2Granted
Slip-resistant step stool and a method of manufacturing the same
AssigneeRubbermaid Incorporated
InventorElena Sapatova
Life of this patent
Estimating the term…
Abstract
A slip resistant step stool includes a step surface with four legs extending downward. A slip resistant surface is bonded to the step surface. The slip resistant surface may be disposed in a pocket and have a ridge surrounding it. The slip resistant surface can be a thermoplastic elastomer. The stool can be manufactured by inserting the slip resistant surface in a mold adapted to form a step stool, then injecting molten resin into the mold, thereby bonding the resin to the slip resistant step stool.
Claims15
A slip-resistant step stool, comprising:
- a plastic step surface;
- a plurality of support legs extending downward from the step surface;
- and
- a thermoplastic elastomer slip-resistant surface heat bonded to at least a portion of the step surface,
- wherein the slip resistant surface is a high viscosity thermoplastic elastomer insert molded or in-molded into the step surface.
2 more elements
A slip-resistant step stool, comprising:
- a step surface;
- a plurality of support legs extending downward from the step surface;
- and
- a high viscosity thermoplastic elastomer slip-resistant surface bonded to at least a portion of the step surface;
- wherein the high viscosity thermoplastic elastomer comprises a thermoplastic elastomer, an ethylene octene copolymer, a styrene-isoprene-styrene block copolymer, and a phenolic resin.
2 more elements
Dependencies are inferred from the claim text.