This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignees: Swagelok Company, Other. Active years: 1999-2016.
Company Filing History:
3 out of 259 
1 out of 834,411 Years Active: 1999-2016
Title: David A McMillan: Innovator in Ferrule Technology
Introduction
David A McMillan is a notable inventor based in Streetsboro, OH (US). He has made significant contributions to the field of ferrule technology, holding a total of 4 patents. His innovative designs have addressed critical challenges in tube fitting assemblies.
Latest Patents
One of his latest patents is for a ferrule with an internal recess and cylindrical wall. This invention effectively eliminates or greatly reduces high localized loading, galling, and high torque forces in a two ferrule tube fitting assembly. The design features a rear ferrule that redirects reaction forces acting between the front ferrule and the drive nut. The cylindrical interior wall closely surrounds the tube end and includes a circumferentially continuous radial recess located between the nose and rear wall of the rear ferrule. Additionally, the rear ferrule has a substantially conical external wall that extends radially outward toward the enlarged diameter portion or flange.
Another patent also focuses on a ferrule for a metal tube fitting. This design includes an annular body with a generally cylindrical radially interior wall. The outer radial wall extends from the ferrule front end to a rearward flange portion. The first tapered portion of the outer radial wall increases in radial dimension towards the rearward flange portion, culminating in a crown portion with a convex surface that tapers radially inwardly.
Career Highlights
David has worked with reputable companies, including Swagelok Company. His experience in the industry has allowed him to refine his skills and contribute to advancements in ferrule technology.
Collaborations
Throughout his career, David has collaborated with notable individuals such as Peter C Williams and Howard C B Kuhns. These partnerships have fostered innovation and development in his field.
Conclusion
David A McMillan is a distinguished inventor whose work in ferrule technology has led to significant advancements. His patents reflect a commitment to solving complex engineering challenges, making him a valuable contributor to the industry.