Impact test apparatus
Patent 4696182 Issued on September 29, 1987. Estimated Expiration Date: 
June 10, 2006. 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.
June 10, 2006. 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 2537096 2604777 3693432 InventorAssigneeApplicationNo. 06/872720 filed on 06/10/1986US Classes:73/12.07, By hydraulic or pneumatic forces73/12.05, Particle or projectile specimen73/167ORDNANCE AND PROJECTILEExaminersPrimary: Ruehl, Charles A.Attorney, Agent or FirmInternational ClassG01N 3/30 (20060101)AbstractAn impact test apparatus includes a barrel adapted to contain pressurized gas and having a sealed end and an opposed open end. A shuttle including a bore for carrying a test sample is positioned for translation within the barrel. A seal is provided on the shuttle for sealingly engaging the barrel. The seal divides the interior of the barrel into a portion open to the atmosphere and a sealed portion. A trigger element selectively retains the shuttle in a fixed position within the barrel and permits the shuttle to be released to accelerate toward the open of the barrel as the pressurized gas in the sealed portion of the barrel expands. Brake rings are located proximate the open end of the barrel to decelerate the shuttle and retain the shuttle substantially within the barrel while allowing the test sample to travel towards a target aligned with the open end of the barrel. The impact test apparatus permits reliable and reproducible impact testing of projectiles without the use of towers or explosive charges.Field of SearchORDNANCE AND PROJECTILE | |
