using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts > using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection

CPC:

Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts (F16L17/00 takes precedence; if using bolts or equivalent connecting means F16L23/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00 ) > using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection

CPC subdivides this area 4x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

IPC defines codes here since 1990.

Child Classifications

Navigate with arrow keys, Enter to open

F16L 19/041 CPC only CPC only
F16L 19/043 +2 CPC CPC only CPC only
F16L 19/048 CPC only CPC only
F16L 19/05 with a rigid pressure ring between the screwed member and the exterior of the flared pipe end since 1990 +1 CPC IPC+CPC Available in IPC and CPC