Tool holder
Abstract
Abstract THE TOOL HOLDER IS A GENERALLY CYLINDRICAL BODY WITH ONE END THREADED AND WITH A CYLINDRICAL CONCENTRIC TAIL INTERGRALLY ATTACHED TO THE OPPOSITE END. A BORE FOR RECEIVING THE STEM OF A MACHINE TOOL EXTENDS THROUGH THE BORE AND THE TAIL. A BEAD, SEMI-CIRCULAR IN CROSS-SECTION, IS FORMED ON THE OPPOSITE END OF THE CYLINDRICAL BODY ADJACENT THE PLANE OF THE JUNCTION BETWEEN THE CYLINDRICAL TAIL AND THE CYLINDRICAL BODY. THE REGION IMMEDIATELY ADJACENT THE BEAD IS RELIEVED AXIALLY A DISTANCE ON THE ORDER OF A SIXTH OF THE DIAMETER OF THE CYLINDRICAL BODY. THE DIAMETER OF THE BEADED END OF THE CYLINDRICAL BODY IS SLIGHTLY SMALLER THAN THE DIAMETER OF THE CYLINDRICAL BODY FOR EASE IN PENETRATING THE BORE OF THE ADAPTER AND THE RELIEVED AXIALLY EXTENDING REGION PREVENTS THE TOOL HOLDER FRO, BECOMING JAMMED IN THE BORE OF THE ADAPTER. THE CYLINDRICAL SURFACE OF THE BODY AND THE CYLINDRICAL SURFACE OF THE TIAL ARE PRECISION GROUND AND THEN THESE SURFACES FIT INTO A CORRESPONDINGLY DIMENSIONED BORE AND COUNTER-BORE IN THE ADAPTER. IN THIS WAY THE TOOL HOLDER IS SUPPORTED IN THE ADAPTER ON SPACED BEARING SURFACES FOR GREATER STABILITY.
Inventors
- 👤 Elwin Sunderman
- 👤 Merle Hilliard
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |