Location History:
- Larges Bay, AU (1994)
- Largs Bay South Australia 5016, AU (2004)
- Largs Bay, South Australia 5016, AU (2005 - 2007)
- Adelaide, South Australia, AU (2008)
- Largs Bay, AU (1996 - 2010)
- North Plympton, AU (2014)
Company Filing History:
4 out of 15 
2 out of 102 
5 out of 832,812 Years Active: 1994-2014
Title: David Chelchowski: Innovator in Pipe Coupling Technology
Introduction
David Chelchowski is a notable inventor based in Largs Bay, Australia. He has made significant contributions to the field of pipe coupling technology, holding a total of 11 patents. His innovative designs have improved the functionality and efficiency of pipe couplings, making them more adaptable to various applications.
Latest Patents
Among his latest patents is the "Stepped Down Grip Ring for Use in Pipe Couplings and Pipe Coupling Incorporating Same." This invention features a pipe coupling designed to support a pipe that can be freely inserted into the coupling. The coupling consists of a hollow body with external threads and a tapered inner surface. A nut with internal threads works in conjunction with the body’s external threads at one end and an outwardly converging inner tapered surface at the other end. The coupling also includes a deformable gripping member with an internal bore that accommodates pipes of different diameters. The design ensures that projections on the internal surfaces engage the pipe upon tightening, depending on its diameter.
Another significant patent is the "Method of Manufacture of a Nut and Tail Assembly." This invention outlines a nut and tail assembly that includes a nut with an inward flange and a longitudinal cylindrical hollow body. The assembly is designed to facilitate the manufacturing process, with projections on the sleeve flange assisting in the alignment of components during molding.
Career Highlights
David Chelchowski has worked with various companies, including Philmac Pty Ltd, where he has applied his expertise in developing innovative solutions for pipe coupling systems. His career is marked by a commitment to enhancing product design and functionality.
Collaborations
Throughout his career, Chelchowski has collaborated with notable professionals in the field, including Geoffrey B. Puckett and Malcolm J. Pridham. These collaborations have contributed to the advancement of technology in pipe coupling systems.
Conclusion
David Chelchowski's contributions to pipe coupling technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry positively, showcasing the importance of innovation in engineering solutions.