In one example, a pipe machining apparatus is provided and includes a frame, a tool carrier coupled to and rotatable relative to the frame, a first machining apparatus including a first tool support and a first tool supported by the first tool support and a second machining apparatus including a bridge member, a second tool support supported by the bridge member, and a second tool supported by the second tool support. The first tool is configured to perform a first machining operation and the second tool is configured to perform a second machining operation different than the first machining operation. The first machining apparatus and the second machining apparatus are interchangeably couplable to and rotatable with the tool carrier.

In one example, a pipe machining apparatus is provided and includes a frame, a tool carrier coupled to and rotatable relative to the frame, a first machining apparatus including a first tool support and a first tool supported by the first tool support and a second machining apparatus including a bridge member, a second tool support supported by the bridge member, and a second tool supported by the second tool support. The first tool is configured to perform a first machining operation and the second tool is configured to perform a second machining operation different than the first machining operation. The first machining apparatus and the second machining apparatus are interchangeably couplable to and rotatable with the tool carrier.

A device and associated system for threading, cutting, and reaming pipe ends. The device and system utilize a brushless DC electric motor. The devices also include on-board electronics and operator interface(s) to provide sophisticated control and information as to the various operations. Methods of operating the devices and several different modes for performing various operations.

A device and associated system for threading, cutting, and reaming pipe ends. The device and system utilize a brushless DC electric motor. The devices also include on-board electronics and operator interface(s) to provide sophisticated control and information as to the various operations. Methods of operating the devices and several different modes for performing various operations.

This invention provides a semi-finished pipe used for forming a finished pipe by cutting performed by a lathe. The semi-finished pipe includes: a first layer for forming the finished pipe that remains even after cutting is performed by the lathe; and a second layer for a dummy use that does not remain after being cut by the lathe. According to the semi-finished pipe of the present invention, it is possible to provide the semi-finished pipe that is served for manufacturing a pipe having a small diameter (the finished pipe) using a lathe even when it is difficult for the lathe to perform cutting because of difficulty in grasping a pipe which is a target to be cut by a chucking jig due to a small outer diameter of the pipe.

This invention provides a semi-finished pipe used for forming a finished pipe by cutting performed by a lathe. The semi-finished pipe includes: a first layer for forming the finished pipe that remains even after cutting is performed by the lathe; and a second layer for a dummy use that does not remain after being cut by the lathe. According to the semi-finished pipe of the present invention, it is possible to provide the semi-finished pipe that is served for manufacturing a pipe having a small diameter (the finished pipe) using a lathe even when it is difficult for the lathe to perform cutting because of difficulty in grasping a pipe which is a target to be cut by a chucking jig due to a small outer diameter of the pipe.

A re-facing apparatus for pipe threaded connections having independent machining stations for pin-end (male) and box-end (female) threaded connections. Among other benefits, the machining stations can be used to restore torque shoulders by machining a face of each shoulder using custom spindle and cross slides. The pipe connection re-facing apparatus can be set up over existing pipe racks and allows pipe sections to be rolled through for processing. For example, the apparatus of the present invention can be installed and utilized in proximity to a pipe storage and inspection facility, such that out-of-specification pipe connections can be re-faced without incurring significant transportation and/or machine shop expenses.

Disclosed are filter media packs having a single layer of a high loft filter media and a single layer of a low loft filter media, the filter media pack characterized by the absence of oil added to the filter media pack, the filter media pack capable of filtering air laden particulates from an air stream at greater than 94% efficiency at air stream flow rates of between about 100 feet per minute and 3000 feet per minute. Also disclosed are filter assemblies formed from the filter media pack, and methods of using the filter assemblies.

Pipe machining apparatuses, tool supports, and methods of operating pipe machining apparatuses are provided. In one aspect, a pipe machining apparatus includes a frame, a tool carrier coupled to and movable relative to the frame, and a tool support coupled to and movable with the tool carrier relative to the frame. The tool support is adapted to support a tool and move the tool in a first direction toward a pipe at a first increment and move the tool in a second direction away from the pipe at a second increment. The second increment is larger than the first increment.

Pipe machining apparatuses, tool supports, and methods of operating pipe machining apparatuses are provided. In one aspect, a pipe machining apparatus includes a frame, a tool carrier coupled to and movable relative to the frame, and a tool support coupled to and movable with the tool carrier relative to the frame. The tool support is adapted to support a tool and move the tool in a first direction toward a pipe at a first increment and move the tool in a second direction away from the pipe at a second increment. The second increment is larger than the first increment.