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Pronged fitting

  • US 4,722,558 A
  • Filed: 07/02/1986
  • Issued: 02/02/1988
  • Est. Priority Date: 07/02/1985
  • Status: Expired due to Fees
First Claim
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1. A grap ring fitting for a flexible connecting tube and the like, comprisinga body having a through bore,a coaxial chamber open at the forward end of said body,connecting means at the rear end of said body,a retaining collar partially closing the entrance of said chamber,an annular seal in said chamber adjacent said retaining collar,a grab ring adjacent a shoulder in said chamber, said grab ring having an outer ring portion and a plurality of prongs inclined toward the rear of said chamber and projecting radially inwardly, defining an inside diameter normally smaller than the outside diameter of the connecting tube,a support ring positioned between said grab ring and said seal, said support ring having an outer ring portion and a generally tubular part having an inside diameter for closely receiving the connecting tube, said tubular inner part comprising a plurality of tabs extending rearwardly, having free edges adjacent said prongs for supporting said prongs and limiting their forward movement to resist pull out of said connecting tube.

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