This inventor holds 2 USPTO granted patents. Top assignee: General Electric Company. Active years: 1998-2000.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1998-2000
Title: Innovations by Robert Joseph Christoffel
Introduction
Robert Joseph Christoffel is a notable inventor based in Schenectady, NY (US). He has made significant contributions to the field of engineering, particularly in the repair of steam turbine rotors. With a total of 2 patents to his name, his work showcases innovative methods that enhance the efficiency and longevity of turbine components.
Latest Patents
Christoffel's latest patents include a method of repairing a steam turbine rotor. This method involves the removal of a damaged rim and its associated dovetail region to create a surface at the perimeter of the rim portion. A weld repair region is then formed on this surface, which is machined to reconstruct both the rim portion and the dovetail region. The method is specifically designed for the repair of steel alloy rotors, such as NiCrMoV, NiMoV, and CrMoV alloys. The weld repair is executed using a nickel-base superalloy that possesses mechanical and thermal properties compatible with the steel alloy over a broad temperature range.
Another patent by Christoffel describes a turbine rotor that features a radially-inward portion made of steel alloy and a radially-outward rim portion. This rim portion is formed by a weldment that includes a nickel-base superalloy region, which joins the rim to the inward portion of the turbine rotor. The nickel-base superalloy is engineered to have a room temperature ultimate tensile strength of at least about 690 MPa.
Career Highlights
Christoffel has had a distinguished career at General Electric Company, where he has applied his expertise in turbine technology. His innovative approaches have contributed to advancements in turbine repair methods, ensuring that these critical components operate efficiently and reliably.
Collaborations
Throughout his career, Christoffel has collaborated with esteemed colleagues, including Karl Rudolph Anderson, III and Gerald Richard Crawmer. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Robert Joseph Christoffel's contributions to the field of turbine technology through his innovative patents demonstrate his commitment to engineering excellence. His work not only enhances the performance of steam turbines but also sets a standard for future innovations in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile