Tracer cartridges
Patent 5429054 Issued on July 4, 1995. Estimated Expiration Date: 
February 18, 2013. 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.
February 18, 2013. 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 1457337 1887989 1887990 3262390 3368489 3405638 3420178 Construction for cartridge Shotgun cartridge Shot gun shell tracer wad InventorApplicationNo. 105496 filed on 02/18/1993US Classes:102/458, With tracer means102/451, Integral wad102/532WADSExaminersPrimary: Tudor, Harold J.Attorney, Agent or FirmInternational ClassF42B 007/08Foreign Application Priority Data1991-04-18 GBAbstractA tracer wad for a cartridge comprises a shot holder consisting of four quadrants defining between them a tubular member, a tracer element holder and a conical recess leading to a bore for directing ignited propellant onto a tracer element held in the holder to ensure reliable ignition of the tracer element on firing of the cartridge. A flexible skirt portion ensures a good gas seal between the wad and the barrel of a firearm when the cartridge is fired. When the wad leaves the barrel, the quadrants are peeled back and the tracer element leaves the holder to follow the trajectory of the shot. | |
