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US 6,898,826 B2Granted
Co-molded ladder strap
AssigneeK-2 Corporation
InventorsAlexander D. Draper, Nigel Bruce Edward Steere, Kenneth Wayne Heinle
Life of this patent
Estimating the term…
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AssigneeK-2 Corporation
InventorsAlexander D. Draper, Nigel Bruce Edward Steere, Kenneth Wayne Heinle
Estimating the term…
A ladder strap (150) is made by joining—for example, by co-molding—a first, relatively supple material, defining a lower strap portion (155) with a second, relatively hard material defining an upper strap portion (165). The teeth (167) of the ladder strap are comprises substantially of the harder, second material. In a preferred embodiment, the first and second materials are thermoplastic urethanes, and the co-molding is done using an injection molding process. The co-molding process may be accomplished with co-injection, wherein the two materials are injected at about the same time, or the first material may be injected into a first mold cavity and allowed to partially set, after which the cavity is modified to accommodate the second material.
A ladder strap comprising:
Dependencies are inferred from the claim text.