US3209652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread whirling method
Assignee: Individual
•
Filing: 1961-03-30
•
Granted: 1965-10-05
•
Expires: 1981-03-30
Abstract
No abstract record available.
Inventors
- 👤 Burgsmueller Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:55
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/02; B23G1/32; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/300056; Y10T409/300112; Y10T409/30056
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METHOD OF WHIRLING A THREAD ON A WORKPIECE COMPRISING THE STEPS OF ROTATING A WORKPIECE MEMBER ABOUT AN AXIS AT A HIGH SPEED SUITABLE FOR CONVENTIONAL LATHE OPERATIONS SUCH AS TURNING AND BORING AND AT LEAST 300 R.P.M., AND SUBJECTING THE WORKPIECE MEMBER TO INTERMITTENT CUTTING ACTION OF A TOOL MEMBER ROTATING ECCENTRICALLY ABOUT SAID WORKPIECE AXIS AT A SPEED PROPORTIONAL TO THE SPEED OF THE WORKPIECE MEMBER, THE SPEED OF ONE OF SAID MEMBERS BEING MODIFIED BY AN AMOUNT PROPORTIONAL TO THE CUTTING ANGLE EXPRESSED IN REVOLUTIONS PER MINUTE.
Claim 2
Independent Claim
91 words
A METHOD OF WHIRLING A THREAD ON A WORKPIECE COMPRISING THE STEPS OF ROTATING A WORKPIECE MEMBER ABOUT AN AXIS AT A HIGH SPEED SUITABLE FOR CONVENTIONAL LATHE OPERATIONS SUCH AS TURNING AND BORING AND AT LEAST 300 R.P.M., AND SUBJECTING THE WORKPIECE MEMBER TO INTERMITTENT CUTTING ACTION OF A TOOL MEMBER ROTATING ECCENTRICALLY ABOUT SAID WORKPIECE AXIS AT A SPEED PROPORTIONAL TO THE SPEED OF THE WORKPIECE MEMBER, THE SPEED OF ONE OF SAID MEMBERS BEING MODIFIED BY AN AMOUNT PROPORTIONAL TO THE CUTTING ANGLE EXPRESSED IN REVOLUTIONS PER MINUTE.
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |