This inventor holds 2 USPTO granted patents. Top assignee: United Technologies Corporation. Active years: 1982-1983.
Company Filing History:
Years Active: 1982-1983
Title: Innovations of Frank D. Lemkey
Introduction
Frank D. Lemkey is a notable inventor based in Glastonbury, Connecticut. He has made significant contributions to the field of materials science, particularly in the development of advanced superalloys. With a total of 2 patents, his work has had a profound impact on high-performance materials used in various industries.
Latest Patents
Lemkey's latest patents include groundbreaking innovations in superalloy properties and heat-treated single crystal articles. The first patent, titled "Superalloy properties through stress modified gamma prime morphology," describes a high-strength nickel-based superalloy with a novel microstructure. This superalloy features a gamma matrix containing an oriented gamma prime second phase in plate or rod form. The unique noncuboidal gamma prime phase is produced by aging solution-treated material under applied stress. This process enhances the superalloy's resistance to creep at elevated temperatures, making it suitable for demanding applications.
The second patent, "Heat treated single crystal articles and process," outlines an alloy composition coating scheme and a specific heat treatment process for producing directionally solidified single crystal articles. These articles exhibit exceptional properties and are based on the Ni-Al-Mo system, preferably with additions of tantalum. The production process involves high-rate directional solidification to create a fine dendritic microstructure. A combined homogenizing and solution treatment is performed to achieve a unique chemically homogeneous single-phase microstructure. The final product is rapidly quenched and aged at an intermediate temperature to develop a controlled uniform distribution of fine gamma prime phase particles.
Career Highlights
Frank D. Lemkey has had a distinguished career at United Technologies Corporation, where he has been instrumental in advancing materials technology. His expertise in superalloys and single crystal articles has positioned him as a leader in the field.
Collaborations
Throughout his career, Lemkey has collaborated with esteemed colleagues, including David D. Pearson and Bernard H. Kear. These collaborations have further enriched his research and development efforts.
Conclusion
Frank D. Lemkey's contributions to the field of materials science through his innovative patents have significantly advanced the understanding and application of superalloys. His work continues to influence the development of high-performance materials in various industries.