Flared cone fitting
View Patent ↗An improved flared cone fitting of the type having a male portion and a female portion having a tube, an inverted conical annulus, a nut, and a joinder portion, may be disclosed. It is improved by the joinder portion including a back-side annular face, which may define a void. The joinder portion may also include an abutment intended to contact a shoulder of a fitting nut and properly direct forces exerted on the nut.
1. A female portion of a fitting, comprising:
a tube end comprising:
an inverted conical annulus comprising a generally interior surface formed at least in part by an outside of said tube end being turned radially inward;
an axially restraining portion;
an integral joinder portion, which comprises said inverted conical annulus and said axial restraining portion;
said integral joinder portion further comprises a camming portion configured to facilitate positioning of a nut when said female portion is connected to a male portion; and
said camming portion further comprises a portion generally parallel to an outside diameter of said tube, at a second outside diameter which is generally larger than said outside diameter of said tube.
2. The fitting of claim 1 , wherein said axial restraining portion extends Generally_orthogonally to said tube.
3. The fitting of claim 2 , further comprising a void having a portion extending generally radially beyond an extended peripheral limit of said tube and generally axially interior to said inverted conical annulus.
4. The fitting of claim 3 , further comprising a backside annular face which defines at least a portion of said void.
5. The fitting of claim 1 , wherein said integral joinder portion is formed to further comprise a surface generally parallel to said outside diameter of said tube, generally larger than said second outside diameter.
6. The fitting of claim 1 , wherein said inverted conical annulus is formed with an angle of 30-50 degrees from an outside diameter of said tube.