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Bolted articulated piston

  • US 6,401,680 B1
  • Filed: 11/08/2000
  • Issued: 06/11/2002
  • Est. Priority Date: 11/23/1998
  • Status: Expired due to Fees
First Claim
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1. An articulated piston for an internal combustion engine comprising:

  • an uppermost crown part having an upper surface, a lower surface, and an outer sidewall that defines an outer diameter;

    a lower crown part having an upper surface, a lower surface and an outer sidewall and at least one downwardly projecting pin boss for receiving a wrist pin;

    said uppermost and lower crown parts being fabricated from ferrous-based metallic material and joined together by a plurality of fasteners and including a separate skirt member fabricated of aluminum-based material coupled in articulated manner to said lower crown part.

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