Co-molded ladder strap

Details Co-molded ladder strap Co-molded ladder strap

2005-05-31

2005-05-31

Sakran, Victor (Department: 3677)

Buckles, buttons, clasps, etc.

Strap tighteners

Accordion straps

C024S0680AS, C024S170000, C024S191000, C280S014220, C280S634000

Reexamination Certificate

active

06898826

ABSTRACT:
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.

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