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Formed hose couplings

  • US 4,330,142 A
  • Filed: 01/10/1980
  • Issued: 05/18/1982
  • Est. Priority Date: 01/10/1980
  • Status: Expired due to Term
First Claim
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1. A serviceable-type hose coupling for a tube comprising:

  • (A) a tubular nipple end on the tube over which a section of said hose snugly fits, said nipple having;

    (a) a plurality of parallel segmented circumferential alternate larger and smaller diameter portions, said portions having connecting walls diverging outwardly at an angle between about 50° and

    70°

    from said smaller diameter portions,(b) a plurality of at least three equally angularly spaced axially extending rows of outward projections, at least one projection extending from each of said larger diameter portions,(c) and a radially outwardly extending circumferential flange bead at the inner end of said nipple,(B) a compressible hose snugly fitting over said nipple and against said bead, and(C) a ferrule fitting over said hose and having a radial end flange against the end of said hose and abutting against said bead of said nipple, said ferrule being radially inwardly compressed around said hose to urge said hose against said larger and smaller diameter portions of said nipple and to urge said hose axially against the inside of said flange of said ferrule which in turn is urged against said bead to form a seal to protect the end of said hose.

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