Submersible pump drop pipe and casing assembly connection and method of manufacture

  • US 6,666,480 B2
  • Filed: 11/20/2001
  • Issued: 12/23/2003
  • Est. Priority Date: 11/20/2001
  • Status: Active Grant
First Claim
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1. A single piece polyvinyl chlorine (PVC) pipe of a predetermined interior diameter that has lateral strength when connected to a similar adjacent PVC pipe, said PVC pipe comprising;

  • a male end of said PVC pipe which has external threads;

    a female end of said PVC pipe;

    a first enlarged interior diameter of said PVC pipe at said female end, said first enlarged interior diameter being larger than said predetermined interior diameter and having internal threads to mate with said external threads of said male end for said similar adjacent PVC pipe;

    a second enlarged interior diameter being larger than said first enlarged interior diameter and terminating said PVC pipe at said female end, said second enlarged interior diameter being (a) slightly larger in diameter than said male end of said similar adjacent PVC pipe to receive said male end therethrough and (b) long enough to provide said lateral strength when connected to said similar adjacent PVC pipe, said second enlarged interior diameter being at least long enough to received most of said external threads from said similar adjacent PVC pipe therein before threading;

    said male end and said second enlarged interior diameter at said female end funneling said PVC pipe and said similar adjacent PVC pipe together;

    said PVC pipe being reusable and of a substantially uniform circumference at the male end.

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