Threaded inline swivel

Abstract

A threaded inline swivel has a first nut and an opposite second nut each having the form of a generally hollow cylinder with an open end to receive fuel. Each nut has a collar that has a common nominal diameter. A collar provides at least two faces for gripping by a wrench. Each nut has threading for connection to a hose or other fitting. To further seal the swivel to a hose or a fitting, at least one O-ring and at least one gasket are provided as alternative embodiments. In a further alternate embodiment, the swivel has a threaded second nut and an opposite barbed end on the first nut with a clip. The first nut has its chamber that constricts in diameter through a throat as it enters the second nut. The swivel in all embodiments provides for flow of fluid through it with little turbulence.

1 . An inline swivel connecting a hose, a fitting, a nozzle or other attachment, comprising:
 a first nut and an opposite coaxial second nut, said first nut and said second nut having a generally hollow cylindrical shape, said first nut and said second nut mutually rotating about a common longitudinal axis;   a collar positioned upon said first nut having at least two flat faces adapted to receive a tool;   a second collar positioned upon said second nut having at least two flat faces adapted to receive a tool, at least one of said flat faces having an aperture for receiving at least one ball bearing therein;   a chamber extending within said first nut, said collar, said second collar, and said second nut, said chamber adapted to pass fluid there through; and,   wherein at least one of said first stem and said second stem have threading thereon.   
     
     
         2 . The inline swivel of  claim 1  further comprising:
 said first nut having threads thereon, a notch of lesser diameter than said threads between said threads and said collar, and a neck extending outwardly from said threads and said collar, said neck having a lesser diameter than said threads; 
 said second nut having threads thereon and a notch of lesser diameter than said threads between said threads and said second collar opposite the notch of said first stem, said second nut admitting said neck of said first nut through the length of said second nut; 
 at least one O-ring fitting over said threads of one of said first nut and said second nut and within at least one of said notches; and, 
 at least one gasket engaging said threads of one of said first nut and said second nut. 
 
     
     
         3 . The inline swivel of  claim 1  further comprising:
 said first nut and said second nut each having beveled ends outwardly from said collar and said second collar generally leading into said chamber; 
 said collar having two spaced apart and mutually parallel faces, said faces being generally parallel to the length of said swivel, said collar being round away from said faces; 
 said second collar having two spaced apart and mutually parallel faces, said faces being generally parallel to the length of said swivel, said second collar being round away from said faces, one of said faces having said aperture therein and a cap upon said aperture; and, 
 said chamber having a throat within said first nut, said throat transitioning to a lesser diameter along a constriction into said neck. 
 
     
     
         4 . The inline swivel of  claim 2  further comprising:
 said gasket having an edge positioned upon the perimeter of said gasket, a rim upon the perimeter and an inner rim opposite said rim, said inner rim having at least three flutes extending radially inward, said flutes adapted to engage said threads; and, 
 said edge from said inner rim to said rim having one of a taper, slope, and at least two barbs. 
 
     
     
         5 . The inline swivel of  claim 1  further comprising:
 said first nut having threads thereon and a notch of lesser diameter than said threads and positioning between said threads and said collar; 
 said second nut having second threads thereon, a flange extending around said second nut and outwardly from said second nut generally parallel to said second collar, and a second notch of lesser diameter than said second threads and said flange, said second notch positioning between said flange and said collar opposite the notch of said first stem; 
 at least one O-ring fitting over said threads, inside of said flange, and said second notch; and, 
 at least one gasket engaging said threads of one of said first nut and said second nut. 
 
     
     
         6 . The inline swivel of  claim 5  further comprising:
 said first nut and said second nut each having beveled ends outwardly from said collar and said second collar generally leading into said chamber; 
 said collar having two spaced apart and mutually parallel faces, said faces being generally parallel to the length of said adaptor, said collar being round away from said faces; 
 said second collar having two spaced apart and mutually parallel faces, said faces being generally parallel to the length of said swivel, said second collar being round away from said faces, one of said faces having said aperture therein and a cap upon said aperture; 
 said second threads having a greater diameter than said first threads; and, 
 said chamber having a throat within said first nut, said throat transitioning to a lesser diameter along a constriction into said neck. 
 
     
     
         7 . The inline swivel of  claim 1  further comprising:
 said second nut having threads thereon and a notch of lesser diameter than said threads positioning between said threads and said collar; 
 said first nut having a lesser diameter than said second nut, at least two barbs concentrically formed upon said first nut; and, 
 at least one clip slipping over said first nut wherein said clip is adapted to compress a hose attached to said first nut. 
 
     
     
         8 . The inline swivel of  claim 7  further comprising:
 said first nut and said second nut each having beveled ends outwardly from said collar and said second collar generally leading into said chamber; and, 
 said chamber having a smooth first portion within said first nut and said collar and a smooth second portion within said second collar and said second nut, said second portion having a lesser diameter than said first portion, said first portion abutting said second portion at a step within said collar. 
 
     
     
         9 . The inline swivel of  claim 7  further comprising:
 at least one O-ring fitting over said threads of one of said first nut and said second nut and within said notches; and, 
 at least one gasket engaging said threads.