Patents by Inventor Michael Czayka

Michael Czayka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4328750
    Abstract: Disclosed is a lead bullet having a coating comprised of a thermoplastic composition of molybdenum disulfide and Nylon 11. Nylon 11 per se and other coatings are also disclosed. The coating minimizes or prevents deposition of lead along the barrel and other mechanisms of a firearm. To apply the coating, the bullet is initially degreased and heated to clean its surfaces. A phosphate coating is applied and the bullet is heated to a temperature of at least 425.degree. F. The heated bullet is then disposed in blended molybdenum disulfide and Nylon 11 powder, Nylon 11 per se, or other coating materials to obtain a coating thickness within a range of 1-12 mils. The coated bullet is subsequently heated to at least 367.degree. F. to fuse and to densify the coating on the bullet.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: May 11, 1982
    Assignee: Bangor Punta Corporation
    Inventors: James L. Oberg, Roger J. Curran, Michael Czayka