# US 8,740,258 B2 · Two-axis adjustable mud pipe joint

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- Number: US 8,740,258 B2
- Document ID: US8740258B2
- Status: Granted
- Kind: B2
- Application number: 13/215,824
- Filed: 2011-08-23
- Published: 2013-02-28
- Granted: 2014-06-03
- Earliest claimed: 2011-08-23
- Assignees: Fabrication of Rig and Exploration Equipment, Inc.
- Applicants: David Wells
- Inventors: David Wells
- Web page: https://patentgrep.com/patent/US8740258B2

## CPC

- F04F 5/02: the inducing fluid being liquid
- F16L 27/02: Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F04F: PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED {(evacuating by sorption F04B)}; SIPHONS {(conveying materials in bulk by flows of gas, liquid of foam B65G53/00)}
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL

## Abstract

A pipe having a cylindrical inner wall, a rig end, the rig end having an inner wall having an inside diameter and a remote end. The remote end further comprises a first hemispheric extension that extends from the remote end to at least an outer diameter. A second hemispheric extension connects a surface at an outer cylindrical surface to a pipe exterior wall, wherein the first hemispheric extension and second hemispheric extension form a partial sphere through which, a cavity defined by the inner wall extends.

## Claims

### Claim 1

A pipe comprising:
a rig end, the rig end having an inner wall having an inside diameter;
a remote end connected to the rig end by the inside diameter, the remote end further comprising:
a first hemispheric extension that extends from the remote end to at least an outer diameter; and
a second hemispheric extension that connects to an outer cylindrical surface, wherein the first hemispheric extension and second hemispheric extension form a partial sphere through which a cavity defined by the inner wall extends, and wherein the first hemispheric extension and second hemispheric extension are joined by a weld seam.

### Claim 2 (depends on 1)

The pipe of claim 1, the inside diameter is at least eight inches.

### Claim 3 (depends on 1)

The pipe of claim 1, wherein the rig end has helical threads.

### Claim 4 (depends on 1)

The pipe of claim 1, wherein the outer diameter is at least twice the inside diameter.

### Claim 5

A pipe, the pipe comprising:
a mud tank end having an inner wall;
a socket connected to the mud tank end by at least the inner wall, the socket further comprising:
a funnel having a socket wall extending from the inner wall, an inner annular shoulder extending inward from the socket wall; and
an outer annular flange extending from the socket, wherein the capture ring has at least three bolt holes, and a corresponding recessed key for receiving a protruding key, the outer annular flange having a broad side on a side facing the same direction as the recessed key, wherein the protruding key protrudes in an axial direction from the outer annular flange.

### Claim 6 (depends on 5)

The pipe of claim 5, wherein the outer annular flange has at least three connection points for attaching the capture ring.