Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1996-08-29
1998-06-16
Krass, Frederick
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
405212, 405215, 405216, 114219, 114267, 264 456, 264 459, 264 461, 264 464, 264512, 264513, 264514, 264515, 264516, 264519, 264145, 264154, 264155, 264156, 264166, 26417112, 26417126, 2642091, 2642093, 2642097, 264241, 264250, 264255, B63B 5902, B63B 3544
Patent
active
057667110
ABSTRACT:
A composite camel structure includes an elongate hollow, rigid cylindrical core, opposite ends of the core having respective caps sealingly connected thereto, a buoyant material of cured urethane foam substantially filling the core and being sealingly enclosed therein. A cushion is thermally bonded to and sealingly surrounds the core, the cushion having a substantially unbroken outside surface, being formed of a polymeric component consisting of polyethylene being at least 80 percent low-density polyethylene, and a process additive component including an effective amount of an ultraviolet inhibitor. A pair of parallel-spaced, transversely oriented guides extend between opposite sides of the cushion in axially spaced relation to the core, each guide defining a guide opening through the cushion for receiving hawser chains whereby the camel structure rides up and down with the tide. Also disclosed are a mold apparatus including a mold unit, a plurality of support members, a pair of spacer fittings, and a coolant conduit; and a method for forming the camel structure.
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