Rigid connector for large diameter pipe
AssigneeVetco, Inc.
InventorArthur G. Ahlstone
Life of this patent
Estimating the term…
Abstract
A stab type connector for large diameter pipe has a pin structure and a box structure held in interconnected relation by a locking and loading ring between a circumferential shoulder in the pin structure and a circumferential shoulder on a threaded locking and loading sleeve of the box structure with confronting circumferential pin structure and box structure seating surfaces loaded into engagement. The coengaged and loaded sleeve shoulder and ring and coengaged pin and box structure surfaces transmit axial forces through the connector and resist bending. The connector is useful as a conductor pipe or pile connector.
Claims14
A rigid pipe connector comprising a box body having a transverse first shoulder axially spaced inwardly from an end of said body, a pin body extending within said box body and having a transverse second shoulder abutting said first shoulder, said pin body having an external circumferential groove located beyond said end of said box body defined between axially spaced third and fourth shoulders, a split lock ring in said groove expandable partially outwardly beyond the periphery of said pin body and contractable inwardly completely within said groove, said box body having an external threaded peripheral portion, an internally threaded locking and loading sleeve disposed about said pin body and box body and threadedly meshing with said threaded portion and extending axially outwardly beyond said groove, said sleeve having a fifth shoulder engaging said ring, upon threading of such sleeve along said box body, to force said ring against said third shoulder and said second shoulder against said first shoulder.
A rigid pipe connector comprising;
- a box body having a transverse first shoulder axially spaced inwardly from an end of said box body, a pin body extending within said box body and having a transverse second shoulder abutting said first shoulder, a loading sleeve threaded on said box body and having a third shoulder therein, said pin body having a fourth shoulder facing said third shoulder, said pin body and box body having coengagable sealing surfaces, and a loading ring engaging said third shoulder and fourth shoulder and responsive to threading of said sleeve on said box body to transmit the axial force of said sleeve from said third shoulder through said ring to said fourth shoulder to force said first and second shoulders against one another and said coengagable sealing surfaces against one another.
Dependencies are inferred from the claim text.