Particle-blast cleaning apparatus and method
Patent 4744181 Issued on May 17, 1988. Estimated Expiration Date: 
November 17, 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.
November 17, 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 ReferencesInventorsApplicationNo. 06/931604 filed on 11/17/1986US Classes:451/39, With nonsiliceous abradant134/7, In particulate or comminuted form451/99Abradant supply structureExaminersPrimary: Schmidt, Frederick R.Assistant: Shideler, Blynn Attorney, Agent or FirmInternational ClassB24C 1/00 (20060101)AbstractAn improved particle-blast cleaning apparatus and process featuring sublimable pellets as the particulate media is described as including a source of sublimable pellets, housing means having laterally spaced pellet receiving and discharge stations, and pellet feeder means for transporting the pellets from the receiving station to the discharge station. The pellet feeder means further includes a plurality of reciprocating feeder bars each having a transport bore formed therein to receive the pellets for lateral transport between the receiving and discharge stations. Means for providing gravity flow of the pellets to the transport bores at the receiving station are included, as is a discharge nozzle and means for supplying a pressurized transport gas at the discharge station for conveying the pellets from the discharge station to the discharge nozzle. | |
