Location History:
- Dolton, IL (US) (1979)
- Tinley Park, IL (US) (1998 - 2002)
Company Filing History:
3 out of 231 
2 out of 62 
1 out of 329 Years Active: 1979-2002
Title: Ralph J Trnka: Innovator in Metal Can Manufacturing
Introduction
Ralph J Trnka is a notable inventor based in Tinley Park, IL, with a significant contribution to the field of metal can manufacturing. He holds a total of six patents, showcasing his innovative approach to enhancing the design and functionality of beverage cans. His work has had a lasting impact on the industry, particularly in the area of decorative and uniquely shaped metal cans.
Latest Patents
Trnka's latest patents include a punch assembly for forming a base in a metal beverage can and systems and methods for making decorative shaped metal cans. One of his innovative methods involves manufacturing a metallic can body that is shaped distinctively to enhance its visual presentation to consumers. This process includes providing a can body blank with a sidewall of substantially constant diameter, positioning it within a mold cavity, and applying pressurized fluid to achieve the desired final shape. Additionally, axial compression is applied to reduce internal stresses during the molding process. Another embodiment of his invention involves radially deforming the can body blank in selected areas to create an intermediate can body that is still symmetrical about its axis, while also superimposing a preselected pattern of mechanical deformations.
Career Highlights
Throughout his career, Ralph J Trnka has worked with prominent companies in the industry, including Crown Cork & Seal Technologies Corporation and Crown, Cork & Seal Company, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in can manufacturing technology.
Collaborations
Trnka has collaborated with notable coworkers such as Robert A Winkless and Anton A Aschberger. Their combined expertise has fostered a creative environment that has led to the development of groundbreaking technologies in the field.
Conclusion
Ralph J Trnka's contributions to the metal can manufacturing industry are significant and impactful. His innovative patents and collaborations have paved the way for advancements in the design and functionality of beverage cans. His work continues to influence the industry, ensuring that consumers enjoy visually appealing and uniquely designed products.