Method for manufacturing patterned tread plates
Patent 5735155 Issued on April 7, 1998. Estimated Expiration Date: 
October 24, 2016. 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.
October 24, 2016. 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 2278554 2326963 3788118 Self cleaning animal floor assembly and method of fabricating same Progressive stamping press Beveled lobe anti-skid grating Method and apparatus for making grain bin flooring Progressive die for drawless fin Formation of shapes in a metal workpiece Patent #: 5144709 InventorsAssigneeApplicationNo. 735662 filed on 10/24/1996US Classes:72/14.8, Including use of sensor responsive to information carried by removable auxiliary record (e.g., recording disk, tape, or card)29/896.6, Multiperforated metal article making72/20.2, To control predetermined sequence of operating movements (e.g., of one tool operating on work)72/325, By composite tool (e.g., piercing)72/379.2, Deforming sheet metal72/403With means to actuate tools in sequenceExaminersPrimary: Larson, Lowell A.Assistant: Tolan, Ed Attorney, Agent or FirmForeign Patent References
International ClassB21C 051/00AbstractA method for manufacturing patterned tread plates including the steps of providing a press having a path for advancing a sheet therethrough, the press being equipped with a progressive die including a plurality of gaggable dies and punches arranged in a plurality of rows in the path to sequentially engage the sheet when the same is being advanced therethrough in the path, operably associating with the press a CPU having a large capacity secondary data storage device, introducing a multiplicity of codes into the secondary data storage device with each code corresponding to a different tread pattern, some of the codes including gagging instructions for the operation of the dies and punches, selecting a first set of codes and operating the CPU to control the press so as to optionally produce a predetermined number of tread plates according to the first set of codes, and thereafter selecting a second set of codes and operating the CPU to produce a predetermined number of tread plates having a different pattern than the tread plates formed according to the first set of codes.Field of SearchPre-cutting (i.e., before metal-deforming)Concurrently actuated tools With means to actuate tools in sequence To control predetermined sequence of operating movements (e.g., of one tool operating on work) Of different operating assemblages Involving use of claimed apparatus Deforming sheet metal Including use of sensor responsive to information carried by removable auxiliary record (e.g., recording disk, tape, or card) Sensing "memory" stored on tool or tool-linked part Sensing "pattern" With adjustable or replaceable section of tool-face Having adjustable face By composite tool (e.g., piercing) With endless cutting edges BY USE OF NON-DEFORMING WORK-GRIPPING CLAMP AND RELATIVELY MOVABLE CLAMP, TOOL OR WORK-FORCER By individually non-deforming clamps Multiperforated metal article making SPECIFIED WEAR OR FRICTION-TYPE TRAFFIC-CARRYING SURFACE Perforate structure having twisted element or particular surface Perforated Material laterally displaced | |
