The Babcock & Wilcox Company

Lincoln Global, Inc.

Babcock & Wilcox Power Generation Group, Inc.

J. Ray Mcdermott, S.a.

Thomas Edward Doyle

Patrick M Ryan

Steven R Peters

Melvin John Albrecht

Dave Kraft

Kiplin C Alexander

Michael D McAninch

Steven R Fry

David P Edmonds

Clyde David Noel

Terry Louis Breaux

Dave L Kraft

A method and a system for forming a root pass weld for a root pipe joint. A substantially periodic electric welding waveform is generated and a series of electric arc pulses are generated between an advancing welding electrode and a root pipe joint in response to the electric welding waveform. The electric welding waveform includes a base cycle having a background current phase providing a background current level, a peak current phase providing a peak current level, a tail-out current phase providing a decreasing tail-out current level, and at least one heat-increasing current pulse during the background current phase providing a heat-increasing current level being above the background current level.

Method to improve the characteristics of a root pass pipe weld

A radiant syngas cooler used to contain and cool the synthesis gas produced by coal gasification processes employs radiant and convection surfaces in a specific arrangement to achieve a cost-effective, compact design.

Radiant syngas cooler

A method and apparatus for automatically cooling a workpiece being manufactured by shape melting whereby a gas/liquid coolant mixture is pumped onto the external surface of the part to be cooled. Temperature and pressure data is fed to a computer control system which regulates the flow of the gas and liquid coolant mixtures. A suction device which enshrouds the spray head extracts the heated and vaporized fluid from the vicinity of the surface. The apparatus may be provided with multiple spray heads which comprise the cooling head and have the ability to control the total rate at which coolant flows through the device by individually controlling coolant and gas flow through each of the multiple spray heads. If more cooling is desired, the computer control system activates more nozzles for flow, or it increases flow rate through already activated nozzles. Both the number of spraying heads and flow rates through each spray head are variable, so the cooling capabilities of the system are continuously variable over a wide range of total flow rates through the device.

Method and apparatus for automatic vapor cooling when shape melting a

A method and apparatus for building a workpiece of a desired geometry by deposit welding with a reusable preform. The reusable preform forms, supports, and cools the deposited molten weld material puddle while the weld material is solidifying thereby eliminating the need for a conventional preform. The reusable preform may be mobile or stationary in any shape, e.g., a block, a cylinder, or a belt. It is manufactured from either a combination of or exclusively of, a ceramic material or a material with high thermal conductivity.

Method and apparatus for building a workpiece by deposit welding

The invention relates to a new and distinct variety of Blackberry plant most nearly resembling the Wild Blackberry which exhibits (1) an absence of thorns or prickles, (2) the common occurrence of palmately compound leaves having five leaflets, (3) sturdy canes which support an unusually large upright-arching plant, (4) unusually long trailing stems, and (5) substantially round berries which form in an unusually abundant quantity and ripen over an unusually extended period.

Doyle's Blackberry

Growing community of inventors

Louisville, OH, United States of America

Thomas Edward Doyle