Redraw mechanism for can body maker apparatus
April 30, 2017. 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 3289453 3696659 3735629 Electromagnetic actuator Method for moving a tool to exact shaping or working engagement with a strip of material having a repeated basic shape Electromagnetic actuator Electromagnetic re-draw sleeve actuator Can body maker with magnetic ram bearing and redraw actuator Electromagnetic redraw actuator Electromagnetic re-draw sleeve actuator InventorsAssigneeApplicationNo. 846745 filed on 04/30/1997US Classes:72/349, Plural deep drawing72/350With application of frictional restraining force to work during deformationExaminersPrimary: Larson, Lowell A.Attorney, Agent or FirmInternational ClassB21D 024/04AbstractAn improved can body maker apparatus has a redraw system of reduced mass. An air actuator is incorporated into the redraw motion assembly to maintain a cam actuated arm in contact with a cam surface during the reform cycle. A improved mechanical linkage eliminates the conventional redraw carriage. The redraw sleeve is supported within a fluid bearing mounted in a stationary housing. | |
