US3109915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for machining work at elevated temperature
Assignee: Milacron Inc
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Filing: 1961-06-08
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Granted: 1963-11-05
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Expires: 1981-06-08
Abstract
No abstract record available.
Inventors
- 👤 Jens L Wennberg
- 👤 Pentland William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:10
CPC Classifications
B; B23; B23P; B23P25/00; B23P25/003; B23B; B23B27/00; B23B27/22; Y; Y10; Y10S; Y10S82/00; Y10S82/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE METHOD OF HOT MACHINING A CONDUCTIVE WORKPIECE COMPRISING THE STEPS OF EFFECTING RELATIVE MOVEMENT BETWEEN THE WORKPIECE AND A TOOL ENGAGED THEREWITH INCLUDING MOVEMENT IN A FEED DIRECTION, MAINTAINING AN ELECTRODE IN SLIDING CONTACT WITH THE WORKPIECE A PREDETERMINED DISTANCE FROM THE TOOL IN SAID FEED DIRECTION, AND CONNECTING A RADIO FREQUENCY VOLTAGE SOURCE ACROSS THE TOOL AND THE ELECTRODE TO HEAT THE WORKPIECE AT THE TOOL.
Claim 2
Independent Claim
68 words
THE METHOD OF HOT MACHINING A CONDUCTIVE WORKPIECE COMPRISING THE STEPS OF EFFECTING RELATIVE MOVEMENT BETWEEN THE WORKPIECE AND A TOOL ENGAGED THEREWITH INCLUDING MOVEMENT IN A FEED DIRECTION, MAINTAINING AN ELECTRODE IN SLIDING CONTACT WITH THE WORKPIECE A PREDETERMINED DISTANCE FROM THE TOOL IN SAID FEED DIRECTION, AND CONNECTING A RADIO FREQUENCY VOLTAGE SOURCE ACROSS THE TOOL AND THE ELECTRODE TO HEAT THE WORKPIECE AT THE TOOL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |