Hose coupling
First Claim
1. A hose coupling comprising a nipple dimensioned for insertion into a hose, a stem circumscribing and mounted for sliding movement on said nipple, means on said stem for gripping the interior of a hose;
- a plurality of longitudinally extending wedge shaped segments radially spaced from said stem and for embracing a length of hose between said stem and wedge shaped segments;
a compression sleeve circumscribing said wedge shaped segments, said sleeve having an interior for engaging and embracing said wedge shaped segments, and means to inhibit axial movement of said compression sleeve relative to said nipple when said coupling is connected to said hose and subject to fluid pressure interiorly thereof for permitting limited axial movement of both said stem and said wedge segments with said hose and relative to said nipple and said sleeve to increase the grip of said wedge segments and said stem against said hose.
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Accused Products
Abstract
Disclosed is a self tightening hose coupling which when applied to a hose comprises a floating sandwich like structure including a floating stem, hose, and tapered wedge segments which operate as a unit and float between a nipple and a compression sleeve. The compression sleeve has a tapered interior which matches the taper of the wedges and is constructed to permit the interior placement of a locking ring which operates against a split retaining ring mounted on the nipple thereby preventing the floating sandwich like structure from being pulled out when internal fluid or tensile pressures, occur under operating conditions.
82 Citations
12 Claims
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1. A hose coupling comprising a nipple dimensioned for insertion into a hose, a stem circumscribing and mounted for sliding movement on said nipple, means on said stem for gripping the interior of a hose;
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a plurality of longitudinally extending wedge shaped segments radially spaced from said stem and for embracing a length of hose between said stem and wedge shaped segments; a compression sleeve circumscribing said wedge shaped segments, said sleeve having an interior for engaging and embracing said wedge shaped segments, and means to inhibit axial movement of said compression sleeve relative to said nipple when said coupling is connected to said hose and subject to fluid pressure interiorly thereof for permitting limited axial movement of both said stem and said wedge segments with said hose and relative to said nipple and said sleeve to increase the grip of said wedge segments and said stem against said hose. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification