Hose coupling

Abstract

A hose coupling employs a tailpiece, a sleeve and collar to prevent the hose to be removed from the coupling. The tailpiece includes an exterior having: a first sinusoidally shaped (in cross-section), partially diamond shaped knurled contour, and, a cylindrically shaped interior. The sleeve includes an interior second sinusoidally shaped contour reciprocal to the first undulating contour of the tailpiece. The sleeve includes first and second halves each having two sets of fingers which interengage the fingers of the other half. A hose is disposed between the sleeve and the tailpiece and the hose includes a grounding wire which engages the collar or the sleeve. The collar includes first and second halves and each of the halves of the collar interengage the sleeve urging the sleeve against the hose compressing the hose against the contour of the tail piece.

1 . A hose coupling, comprising:
 a tailpiece; said tailpiece includes a first undulating contour;   a sleeve;   a hose disposed between said sleeve and said tailpiece;   said sleeve includes a second undulating contour reciprocal to said first undulating contour of said tailpiece;   a collar; and, said collar urging said sleeve and said hose against said contour of said tailpiece preventing extraction of said hose from said coupling.   
     
     
         2 - 16 . (canceled) 
     
     
         17 . A hose coupling, comprising:
 a tailpiece, a sleeve and a collar;   said tailpiece includes an exterior, first sinusoidally shaped contour;   said tailpiece includes a cylindrically shaped interior;   said exterior, first sinusoidally shaped contour includes knurled portions;   said sleeve includes an interior, second sinusoidally shaped contour reciprocal to said first sinusoidally shaped contour of said exterior of said tailpiece;   said sleeve includes first and second halves;   each half of said sleeve includes two sets of reciprocal fingers;   each set of reciprocal fingers of said first half of said sleeve engage a respective interfitting set of said reciprocal fingers of said second half of said sleeve;   said exterior, sinusoidally shaped contour of said tailpiece includes first peaks and first valleys and said second interior, sinsusoidally shaped contour of said sleeve includes second peaks and second valleys,   a hose disposed between said sleeve and said  - tailpiece;   said first peaks of said tail piece interfitting said second valleys of said sleeve and said first valleys of said tailpiece interlining said second peaks of said sleeve;   said collar includes first and second halves;   each of said halves of said collar interengage said sleeve;   said collar urging said sleeve against said hose;   said hose engaging said first sinusoidally shaped contour of said exterior of said tailpiece and said knurled portions of said first sinusoidally shaped contour of said exterior of said tailpiece preventing extraction of said hose from said coupling.   
     
     
         18 . A hose coupling as claimed in  claim 17  where said hose is compressed between said tailpiece and said sleeve. 
     
     
         19 . A hose coupling as claimed in  claim 17  wherein said sleeve comprises first and second halves, said first half of said sleeve includes interdigitated fingers and second half of said sleeve includes interdigitated fingers, said first and second set of interdigitated fingers are interlaced with one another forming a non-linear parting line between said first and second halves of said sleeve having said first and second half of interdigitated fingers. 
     
     
         20 . A hose coupling as claimed in  claim 18  wherein said sleeve compresses said hose in variable directions along said non-linear parting line and minimizes pinching of the hose when said collar urges said sleeve inwardly. 
     
     
         21 . A hose coupling, comprising:
 a tailpiece; said tailpiece includes a first undulating contour;   a sleeve;   a hose disposed between said sleeve and said tailpiece;   said sleeve includes a second undulating contour reciprocal to said first undulating contour of said tailpiece; said sleeve comprises first and second halves; said sleeve halves include reciprocal interdigitated fingers which form a non-linear parting line;   a collar; and,   said collar urging said sleeve and said hose against said contour of said tailpiece preventing extraction of said hose from said coupling.   
     
     
         22 . A hose coupling as claimed in  claim 21  wherein said non-linear pattern is a non-linear wave. 
     
     
         23 . A method for coupling hose, comprising the steps of:
 drawing hose over the exterior of a tailpiece, said tailpiece includes an undulating exterior surface,   placing first and second sleeves On the outside of said hose, said sleeves each having interdigitated fingers for interengagement with each other, and said sleeves include undulating interior surfaces;   placing first and second collar halves over said first and second sleeves such that the joint between said first and second collars is rotationally offset from said interengagement of said interdigitated fingers of said sleeves;   clamping said first and second sleeves to said hose;   torqueing, uniformly, the collars to each other urging them into forceful engagement with said sleeves; and,   compressing said hose between said undulating exterior surface of said tailpiece and said undulating interior surface of said sleeves.   
     
     
         24 . A method for coupling hose as claimed in  claim 23  wherein said exterior of said tailpiece includes knurled portions thereof 
     
     
         25 . A method for coupling hose as claimed in  claim 23  wherein said steps of clamping and torqueing are performed with pivot rods, said pivot rods resides in J-shaped slots in said exterior portions of said first and second collar halves, said pivot rods are threadedly interconnected with bolts secured within a respective one of said first and second collar halves. 
     
     
         26 . A method for coupling hose as claimed in  claim 25  wherein said J-shaped slots enable rotation of one of said first and second coupling halves with respect to the other enabling removal of the hose from the coupling for reuse thereof.