Company Filing History:
Years Active: 1976-1985
Title: Ludwig W Freitag: Innovator in Diaper Technology
Introduction
Ludwig W Freitag is a notable inventor based in Elkhart Lake, WI (US). He has made significant contributions to the field of diaper technology, holding 2 patents that showcase his innovative approach to product design and functionality.
Latest Patents
Freitag's latest patents include an elastic band applicator and a multi-ply pad severing and sealing apparatus. The elastic band applicator is designed for diapers using hot melt glue. In this invention, a longitudinally tensioned moving plastic backing sheet is run over a roll that is parallel to and spaced from a stationary cylinder. A shoe deflects the central region of the sheet away from its plane, creating loose flaps at the margins. Glue stripes are applied near the edges of the sheet before it encounters the shoe, which has passageways for the glue stripes. Elastic bands are fed into these passageways onto the glue stripes. After passing the shoe, the margins encounter plows that fold them over the glue stripes and bands, pressing the sheet against a cylinder to smooth the margin. Additionally, the apparatus includes means for retracting the sheet away from the hot nozzles if the sheet stops moving.
Freitag's second patent involves a combined severing and sealing tool for multi-ply pads, such as disposable diapers. This tool features a knife blade that severs the multi-ply links connecting the pads. Following the knife edge is a blunt heel that seals the multiple plies of sheet material together. This design ensures that the separated pads remain aligned and do not flare or become disoriented during handling, greatly simplifying the process after severing.
Career Highlights
Ludwig W Freitag is associated with Curt G. Joa, Inc., a company known for its innovative solutions in the hygiene product industry. His work has significantly impacted the efficiency and effectiveness of diaper manufacturing processes.
Collaborations
Freitag collaborates with John L Hirsch, contributing to the development of advanced technologies in the field.
Conclusion
Ludwig W Freitag's contributions to diaper technology through his innovative patents demonstrate his commitment to improving product design and functionality. His work continues to influence the hygiene product industry, making a lasting impact on manufacturing processes.