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Method for manufacturing school bus seat with energy absorber and using same

  • US 8,647,544 B2
  • Filed: 02/22/2008
  • Issued: 02/11/2014
  • Est. Priority Date: 09/30/2004
  • Status: Expired due to Fees
First Claim
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1. A method for manufacturing an envelope style bus seat back cushion comprising the steps of:

  • injecting urethane foam into an envelope style bus seat back cushion mold, said mold having a core to form said envelope style bus seat back cushion, said envelope style bus seat back cushion includes;

    a front portion and a rear portion;

    said front portion and said rear portion are connected by a joining portion;

    said front portion, said rear portion, and said joining portion include a closed upper portion;

    an open lower portion; and

    an intermediate portion;

    said front portion, said rear portion, and said joining portion form said closed upper portion;

    said open lower portion includes an aperture therein in communication with a pocket formed in said intermediate portion; and

    said pocket has sides and a bottom reciprocally shaped to slide over a seat back;

    extracting said envelope style bus seat back cushion urethane foam from said mold;

    overspraying said envelope style bus seat back cushion urethane foam externally from said mold with an elastomeric skin to a desired thickness.

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