Company Filing History:
Years Active: 1997-1999
Title: Innovations of John M Melberg
Introduction
John M Melberg is a notable inventor based in Andover, MN (US). He has made significant contributions to the field of ammunition technology, particularly in developing lead-free and heavy-metal-free priming compositions. With a total of 2 patents, his work reflects a commitment to safety and environmental considerations in ammunition manufacturing.
Latest Patents
Melberg's latest patents include a lead-free, heavy-metal-free rim-fire priming composition. This innovative composition consists primarily of diazodinitrophenol (DDNP) as a primary explosive, combined with a low percentage of tetracene as a secondary sensitization explosive. The formulation also includes a high percentage of ground glass and a very low percentage of an effective lead-free, heavy-metal-free oxidizer. A strong binder is added to ensure the composition's installation and retention within the rim of the casings. Additionally, a dye is incorporated to facilitate visual inspection after installation. The preferred mix comprises 29.8% DDNP, 4.0% tetracene, 57.0% ground glass, 7.5% potassium nitrate, 1.5% gum tragacanth, and 0.2% Prussian Blue.
Another significant patent is for a non-toxic rim-fire primer. This mix utilizes cupric azide as the primary explosive, replacing lead styphnate. The cupric azide is combined with nitrocellulose, tetracene, fine particles of ground glass, and a binder, typically gum tragacanth. This formulation achieves the necessary sensitivity, stability, and non-hygroscopicity for regular commercial rim-fire ammunition. The preferred percentages include 10-36% cupric azide, 5-10% tetracene, 15-30% nitrocellulose, 20-50% glass, and 1-2% gum.
Career Highlights
Throughout his career, Melberg has worked with reputable companies such as Federal-Hoffman, Inc. and Federal Cartridge Company. His experience in these organizations has contributed to his expertise in ammunition technology and innovation.
Collaborations
Melberg has collaborated with notable coworkers, including Jack A Erickson and Robert L Kramer. Their combined efforts have likely advanced the development of innovative ammunition solutions.
Conclusion
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.