Location History:
- Worthington, OH (US) (1978)
- Sanibel, FL (US) (1979)
Company Filing History:
Years Active: 1978-1979
Title: Walter A. Hedden: Innovator in Plaster Molding Composition
Introduction
Walter A. Hedden, based in Worthington, Ohio, is a noted inventor with a focus on developing advanced plaster molding compositions. With three patents to his name, Hedden's work has significantly contributed to the field of materials science, particularly in low fusion metal casting molds.
Latest Patents
Hedden's latest patents include two innovative plaster molding compositions. The first invention is a fiber-free plaster molding composition consisting of approximately 50-70% gypsum plaster, 5-25% fine expanded perlite, and 5-30% of a non-fibrous filler such as mica, silica, fly ash, pyrophyllite, or mixtures thereof. This composition is designed to exhibit excellent dry blending properties, slurry characteristics, and functional wet and dry mold features, making it an effective replacement for traditional fiber-containing molding compositions.
The second patent features a fibrous talc-free plaster molding composition that comprises approximately 50-70% gypsum plaster, 5-20% fibrous wollastonite, 5-25% fine expanded perlite, and up to 40% of a filler selected from sand, fly ash, pyrophyllite, or mixtures thereof. This formulation also offers good dry blending properties and mold features, presenting a suitable alternative to fibrous talc-containing compositions for low fusion metal casting molds.
Career Highlights
Throughout his career, Walter A. Hedden has held positions at notable organizations, including the PMCMA Research Group and Exxon Production Research Company. His experience in these companies has helped him to advance and implement his innovative ideas in practical applications.
Collaborations
Hedden has collaborated with fellow professionals such as David R. Lankard and Claude E. Cooke, Jr. These collaborations reflect the importance of teamwork in the innovative process, allowing for the sharing of ideas and expertise that lead to successful inventions.
Conclusion
Walter A. Hedden exemplifies the spirit of innovation in the field of materials science. His contributions through his patented plaster molding compositions have paved the way for enhanced methods in metal casting. With a solid career foundation and impactful collaborations, Hedden continues to influence his industry through his inventive spirit and dedication to improvement.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.