Plastic coated ammunition and methods of manufacture
Patent 4328750 Issued on May 11, 1982. Estimated Expiration Date: 
May 11, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 11, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2703768 2928348 3356029 3397636 3403626 3429261 3580178 3910194 InventorsAssigneeApplicationNo. 05/955072 filed on 10/26/1978US Classes:102/514, Having jacket102/376, With cartridge means427/195, Synthetic resin particles427/376.6, Metal-containing coating427/419.7, Boride, carbide, nitride, phosphide, silicide, or sulfide-containing coating427/419.8, Organometallic or metal salt of organic compound-containing coating428/458, Next to polyester, polyamide or polyimide (e.g., alkyd, glue, or nylon, etc.)428/469, Next to metal salt or oxide428/645Pb-base componentExaminersPrimary: Hunt, Brooks H.Assistant: Gluck, Irwin Attorney, Agent or FirmInternational ClassesF42B 12/00 (20060101)F42B 12/80 (20060101) F42B 14/00 (20060101) C08K 3/00 (20060101) C08K 3/30 (20060101) F42B 14/02 (20060101) AbstractDisclosed 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° 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° F. to fuse and to densify the coating on the bullet.Other References
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