Company Filing History:
Years Active: 1985-1987
Title: Innovations of Dean M Spear
Introduction
Dean M Spear is a notable inventor based in Terre Haute, IN (US). He has made significant contributions to the field of thermoplastic manufacturing, holding a total of six patents. His work focuses on methods and apparatuses that enhance the production of selectively apertured thermoplastic sheets and films.
Latest Patents
Among his latest patents is a method of making a rotatable molding element for selectively aperturing. This invention involves an apparatus designed for the manufacture of selectively apertured thermoplastic sheet or film. It comprises a rotatable molding element that receives the film, which has a predetermined pattern. When the film contacts the molding element and a fluid pressure differential is applied, a desired pattern of perforated and non-perforated areas is imparted to the film. Each area is continuous across the web of the film and alternates in the machine direction. Another significant patent is a screen for selectively perforating thermoplastic film, which shares similar features and functionality.
Career Highlights
Dean M Spear is currently employed at Ethyl Corporation, where he continues to innovate in the field of thermoplastic manufacturing. His expertise and inventions have contributed to advancements in the industry, making processes more efficient and effective.
Collaborations
One of his notable coworkers is Garland E Raley, with whom he has likely collaborated on various projects and innovations.
Conclusion
Dean M Spear's contributions to the field of thermoplastic manufacturing through his patents and work at Ethyl Corporation highlight his role as a significant inventor. His innovative methods continue to impact the industry positively.