Abstract:
A grip and fitting assembly for coupling an air hose to a gladhand coupler. The grip (20) is flexible and tapered with a tubular interior (25) through which may pass a length of hose (30) shielded and protected by the grip. The grip is affixed to a fitting (10) attachable to the gladhand coupler (40) on a first threaded end (15) thereof and attachable to the air hose on a second barbed end (12) thereof. The grip is configured with one or more internal keyway boss (28a-28c) which aligns and interlocks with one or more corresponding keyway recess (19) on a retaining shoulder (17) formed between the ends of the fitting. The secure, snap-fit attachment between the grip and fitting ensures ease of operation, installation, maintenance, along with increased durability, weather-resistance, efficiency, usability, and reliability of the coupling.
Abstract:
A swivel coupling (100) assembly includes a first annular member (110) having at least one annular barb (115), a shoulder (116) and at least one annular groove (118) containing a seal (130; 140). There is a first bearing surface (131) and a second bearing surface (141) either side of the annular groove. The first and second bearing surfaces have a width equal to or greater than a width of the annular groove. There is a second annular member (150) having an inner surface defining a bore configured to receive the first annular member. When joined, the shoulder of the first annular member frictionally engages the bore of the second annular, thereby allowing rotation. The seal engages with and seals the bore at a location between the ends of the second member, and spaced by a distance of at least the width of the first and second bearing surfaces from the shoulder and the second opening, respectively.