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Universal mechanical coupling with interfitting ends

  • US 6,139,069 A
  • Filed: 08/24/1998
  • Issued: 10/31/2000
  • Est. Priority Date: 08/24/1998
  • Status: Expired due to Term
First Claim
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1. A coupling segment comprising:

  • an arcuate body having a first end, a second end;

    a concave surface extending between the first end and the second end;

    a longitudinal central plane extending from the first end to the second end;

    a tongue and a recess pair located side-by-side on each end, the tongue being generally on an opposite side of the longitudinal central plane from the recess, wherein the positioning of the tongue and recess are reversed with respect to the central plane at opposite ends of each segment, each recess being slightly larger than the tongue to receive the tongue of an identical coupling segment and form a tongue-recess interfit when the coupling segment is coupled together with an identical coupling segment; and

    each tongue having a tongue inner sidewall and each recess having a recess inner sidewall, the tongue inner sidewall and the recess inner sidewall for each side-by-side tongue and recess pair forming a generally circumferentially and radially extending common surface.

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