US3154664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blanking dies and method of making same
Assignee: ThyssenKrupp Budd Co
•
Filing: 1962-12-07
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Granted: 1964-10-27
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Expires: 1982-12-07
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Zeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:13
CPC Classifications
B; B23; B23H; B23H9/00; B23H9/12; B21; B21D; B21D37/00; B21D37/20; B21D37/205; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
THE METHOD OF MAKING A BLANKING DIE SYSTEM COMPRISING THE STEPS OF: FASTENING A HOMOGENEOUS SHEAR RULE TO AN INNER AND OUTER RETAINING PLATE HAVING A GROOVE THEREBETWEEN SHAPED TO THE CONTOUR OF A BLANK TO BE CUT BY SAID SHEAR RULE, HARDENING SAID MOUNTED HOMOGENEOUS SHEAR RULE, ATTACHING SAID HARDENED SHEAR RULE TO A BACKING PLATE, MOUNTING A PLATE OF HARDENED TOOL STEEL OPPOSITE SAID MOUNTED SHEAR RULE, CONNECTING SAID SHEAR RULE TO A POWER SUPPLY OF A FIRST POLARITY AND CONNECTING SAID HARDENED PLATE TO A POWER SUPPLY OF AN OPPOSITE POLARITY, ELECTRICAL DISCHARGE MACHINING SAID PLATE OF HARDENED TOOL STEEL INTO TWO SEPARATE AND DISTINCT PIECES FORMING AN INNER AND OUTER SHEAR PLATE BY EMPLOYING SAID HARDENED HOMOGENEOUS SHEAR RULE AS THE CUTTING TOOL ELECTRODE AND SAID TOOL STEEL PLATE AS A WORKPIECE ELECTRODE, SEPARATING AND MOUNTING SAID PIECES OF SAID HARDENED TOOL STEEL PLATE AS A DIE PLATE AND STRIPPER, AND SHAPING THE EDGES OF SAID SHEAR RULE BY GRINDING THE ENDS OF SAID CUTTING TOOL ELECTRODE TO PROVIDE AN UPPER SHEAR RULE DIE ADAPTED TO COOPERATE WITH SAID PLATES AND SAID STRIPPER.
Claim 2
Independent Claim
187 words
THE METHOD OF MAKING A BLANKING DIE SYSTEM COMPRISING THE STEPS OF: FASTENING A HOMOGENEOUS SHEAR RULE TO AN INNER AND OUTER RETAINING PLATE HAVING A GROOVE THEREBETWEEN SHAPED TO THE CONTOUR OF A BLANK TO BE CUT BY SAID SHEAR RULE, HARDENING SAID MOUNTED HOMOGENEOUS SHEAR RULE, ATTACHING SAID HARDENED SHEAR RULE TO A BACKING PLATE, MOUNTING A PLATE OF HARDENED TOOL STEEL OPPOSITE SAID MOUNTED SHEAR RULE, CONNECTING SAID SHEAR RULE TO A POWER SUPPLY OF A FIRST POLARITY AND CONNECTING SAID HARDENED PLATE TO A POWER SUPPLY OF AN OPPOSITE POLARITY, ELECTRICAL DISCHARGE MACHINING SAID PLATE OF HARDENED TOOL STEEL INTO TWO SEPARATE AND DISTINCT PIECES FORMING AN INNER AND OUTER SHEAR PLATE BY EMPLOYING SAID HARDENED HOMOGENEOUS SHEAR RULE AS THE CUTTING TOOL ELECTRODE AND SAID TOOL STEEL PLATE AS A WORKPIECE ELECTRODE, SEPARATING AND MOUNTING SAID PIECES OF SAID HARDENED TOOL STEEL PLATE AS A DIE PLATE AND STRIPPER, AND SHAPING THE EDGES OF SAID SHEAR RULE BY GRINDING THE ENDS OF SAID CUTTING TOOL ELECTRODE TO PROVIDE AN UPPER SHEAR RULE DIE ADAPTED TO COOPERATE WITH SAID PLATES AND SAID STRIPPER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |