Patent US3271853A successfully refreshed from Google Patents.
US3271853A
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Automatic tool changing mechanism for machine tool
Assignee: Milacron Inc
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Filing: 1965-01-26
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Granted: 1966-09-13
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Expires: 1985-01-26
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Pfister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:23
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/155; B23Q3/157; B23Q3/15706; Y; Y10; Y10T; Y10T483/00; Y10T483/17; Y10T483/1733; Y10T483/179; Y10T483/1793; Y10T483/1795; Y10T483/18; Y10T483/1873; Y10T483/1882
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
APPARATUS FOR INTERCHANGING A SELECTED ON TO A PLURALITH OF CUTTING TOOLS IN A MACHINE TOOL COMPRISING IN COMBINATION: (A) A SPINDLE ROTATABLE ON A FIXED AXIS AND ADAPTED TO RECEIVE AND RELEASABLY HOLD EACH OF THE CUTTING TOOLS WHEN INSERTED AXIALLY INTO SAID SPINDLE, (B) MEANS FOR SUPPORTING SAID CUTTING TOOLS IN A CIRCULAR ARRAY AROUND SAID SPINDLE WITH THE LONGITUDINAL AXIS OF EACH CUTTING TOOL LYING ALONG THE SLOPE OF A CONICAL SURFACE, (C) MEANS FOR ROTATING SAID CIRCULAR ARRAY OF TOOLS THROUGH A SERIES OF POSITIONS IN EACH OF WHICH SERIES OF POSITIONS ONE OF THE TOOLS DEFINING THE SELECTED TOOL IS ORIENTED WITH ITS LONGITUDINAL AXIS PARALLEL TO THE FIXED AXIS OF THE SPINDLE, (D) MEANS FOR SHIFTING SAID CIRCULAR ARRAY OF TOOLS IN A DIRECTION TRANSVERSE TO SAID SPINDLE TO SHIFT SAID SELECTED TOOL TO AND FROM A POSITION WHEREIN THE LONGITUDINAL AXIS THEREOF IS COINCIDENT WITH THE FIXED AXIS OF SAID SPINDLE, AND
Claim 2
Dependent Claim
159 words
APPARATUS FOR INTERCHANGING A SELECTED ON TO A PLURALITH OF CUTTING TOOLS IN A MACHINE TOOL COMPRISING IN COMBINATION: (A) A SPINDLE ROTATABLE ON A FIXED AXIS AND ADAPTED TO RECEIVE AND RELEASABLY HOLD EACH OF THE CUTTING TOOLS WHEN INSERTED AXIALLY INTO SAID SPINDLE, (B) MEANS FOR SUPPORTING SAID CUTTING TOOLS IN A CIRCULAR ARRAY AROUND SAID SPINDLE WITH THE LONGITUDINAL AXIS OF EACH CUTTING TOOL LYING ALONG THE SLOPE OF A CONICAL SURFACE, (C) MEANS FOR ROTATING SAID CIRCULAR ARRAY OF TOOLS THROUGH A SERIES OF POSITIONS IN EACH OF WHICH SERIES OF POSITIONS ONE OF THE TOOLS DEFINING THE SELECTED TOOL IS ORIENTED WITH ITS LONGITUDINAL AXIS PARALLEL TO THE FIXED AXIS OF THE SPINDLE, (D) MEANS FOR SHIFTING SAID CIRCULAR ARRAY OF TOOLS IN A DIRECTION TRANSVERSE TO SAID SPINDLE TO SHIFT SAID SELECTED TOOL TO AND FROM A POSITION WHEREIN THE LONGITUDINAL AXIS THEREOF IS COINCIDENT WITH THE FIXED AXIS OF SAID SPINDLE, AND
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |