US3587269A
Expired / Lapsed
US
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Apparatus and method for ball sizing holes in workpieces
Assignee: Ingersoll Rand Co
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Filing: 1969-06-06
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Granted: 1971-06-28
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Expires: 1989-06-06
Abstract
Abstract A BLOCK IS PROVIDED WITH INTERNAL VERTICAL AND CURVED CONDUITS, WITH THE CURVED CONDUIT INTERSECTING THE VERTICAL CONDUIT. A WORKPIECE HAVING A HOLE THEREIN IS PLACED IN A WORK STATION WITH THE HOLE ALIGNED WITH THE VERTICAL CONDUIT. A RAM DRIVES A SIZING BALL UP THROUGH THE WORKPIECE TO THE TOP OF THE VERTICAL CONDUIT, WHEREUPON A DEFLECTING SURFACE MOVES THE BALL INTO THE CURVED CONDUIT WHERE IT DESCENDS UNDER THE INFLUENCE OF GRAVITY TO THE BOTTOM OF THE CURVED CONDUIT FOR REUSE. A SECOND BALL IN THE CURVED CONDUIT ACTS AS A GATE TO KEEP THE FIRST BALL IN POSITION ON THE RAM DURING INITIAL UPWARD MOVEMENT.
Inventors
- 👤 Robert J Seccombe
- 👤 Jack E Wilison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:30
CPC Classifications
B; B24; B24B; B24B39/00; B24B39/02; B21; B21C; B21C37/00; B21C37/06; B21C37/30; Y; Y10; Y10T; Y10T29/00; Y10T29/47
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |