Company Filing History:
9 out of 49 
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1 out of 585 Years Active: 1976-1987
Title: **Leonard J. Kowal: Innovator in Tube Fitting Technology**
Introduction
Leonard J. Kowal is an accomplished inventor based in Prospect Heights, Illinois, renowned for his contributions to the field of tube fitting technology. With a remarkable portfolio of 12 patents, Kowal has demonstrated his ingenuity and dedication to innovation.
Latest Patents
Among his notable inventions is the releasable push-to-connect tube fitting, designed to improve the efficiency and reliability of tube connections. This innovative fitting incorporates a collet that accepts the tube end, featuring longitudinally extending inner slots. These slots are engineered to strategically limit the constriction of the collet, ensuring that the outer diameter of its inner end remains greater than the minimum diameter of the corresponding camming surface of the fitting body member. This design effectively retains the collet within the body member during assembly.
The collet also boasts an enlarged outer end, which extends beyond the body of the fitting to facilitate easy fingertip manipulation when releasing the tube. This user-friendly feature enhances the fitting's functionality, making it straightforward to detach the tube when necessary. Additionally, the fitting body can be designed for secure attachment to various port elements, and the collet may include tube biting teeth or a helical tooth for improved performance.
Career Highlights
Leonard J. Kowal's career spans several years in prominent companies, most notably at Imperial Clevite Inc. and Clevite Industries Inc. His work in these organizations has significantly contributed to advancements in mechanical engineering and plumbing technology, particularly through the development of innovative fitting solutions.
Collaborations
Throughout his career, Kowal has collaborated with esteemed professionals such as Albert J. Schwarz and Norman B. Wells. These partnerships have enabled him to expand his knowledge and refine his inventions, leading to breakthroughs in his field.
Conclusion
Leonard J. Kowal's inventive spirit and commitment to innovation have positioned him as a distinguished figure in the realm of tube fitting technology. With 12 patents to his credit, his work continues to influence the industry and inspire future inventors. His latest developments in releasable push-to-connect fittings showcase his ability to create practical solutions that meet the needs of modern engineering challenges.