Barrel-cleaning bullet
Patent 5233128 Issued on August 3, 1993. Estimated Expiration Date: 
July 31, 2012. 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.
July 31, 2012. 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 ReferencesInventorApplicationNo. 923406 filed on 07/31/1992US Classes:102/511, Lubricating102/529Practice or cleaningExaminersPrimary: Brown, David H.Attorney, Agent or FirmInternational ClassF42B 014/04AbstractA barrel-cleaning bullet contains a charge of cleaning fluid and an array of cleaning elements that extend about the exterior surface of the bullet. Upon firing of the bullet, a piston, slidably positioned in the cavity filled by the fluid, forces the fluid through at least one discharge port formed in the head of the bullet. The fluid is, thus, distributed along the walls of the gun barrel to treat accumulated deposits. As the projectile accelerates down the barrel, the cleaning elements contact the deposits to clean the barrel bore. | |
