US3106191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluted cutter
Assignee: Swingline Inc
•
Filing: 1958-11-03
•
Granted: 1963-10-08
•
Expires: 1978-11-03
Abstract
No abstract record available.
Inventors
- 👤 Newman Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:21
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/02; B23C5/04; B23P; B23P15/00; B23P15/28; B23P15/34; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1952; Y10T407/1962; Y10T407/1964; Y10T407/1966
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AN INTEGRAL FLUTED STEEL CUTTER COMPRISING A SUBSTANTIALLY CYLINDRICAL LONGITUDINAL TAPERED BODY PORTION AND A PERIPHERAL PORTION FORMED WITH A PLURALITY OF SPEACED HELICAL PROJECTING CUTTING TEETH THEREUPON AND A SHARPENED EDGE PORTION UPON THE UPPER PART OF EACH OF SAID TEETH, THE MATERIAL COMPOSING SAID PERIPHERAL PORTION BEING DENSER THAN THE MATERIAL COMPOSING SAID BODY PORTION WHEREIN THE DENSIFICATION OF SAID PERIPHERAL PORTION IS PRODUCED BY APPLICATION OF ALTERNATE LATERAL AND RADIAL PRESSURES THEREALONG, WHEREIN THE DENSIFICATION OF THE SHAPENED EDGE PORTIONS OF EACH OF SAID TEETH IS PRODUCED BY APPLICATION OF ALTERNATE LATERAL AND RADIAL PRESSURES ALONG EACH OF SAID EDGE PROTIONS, SAID PRESSURES BEING PRODUCED BY ROTATABLE PRESSURE IMPINGEMENT OF A SHAPENING MEMBER AGAINST THE EDGE PORTIONS OF EACH OF SAID TEETH, SAID SHAPENING MEMBER HAVING HELICAL ANGULAR DIFFERENCE FROM THE HELICAL ANGLE OF THE TEETH OF SAID CUTTER OF AT LEAST FIFTEEN SECONDS.
Claim 2
Dependent Claim
147 words
AN INTEGRAL FLUTED STEEL CUTTER COMPRISING A SUBSTANTIALLY CYLINDRICAL LONGITUDINAL TAPERED BODY PORTION AND A PERIPHERAL PORTION FORMED WITH A PLURALITY OF SPEACED HELICAL PROJECTING CUTTING TEETH THEREUPON AND A SHARPENED EDGE PORTION UPON THE UPPER PART OF EACH OF SAID TEETH, THE MATERIAL COMPOSING SAID PERIPHERAL PORTION BEING DENSER THAN THE MATERIAL COMPOSING SAID BODY PORTION WHEREIN THE DENSIFICATION OF SAID PERIPHERAL PORTION IS PRODUCED BY APPLICATION OF ALTERNATE LATERAL AND RADIAL PRESSURES THEREALONG, WHEREIN THE DENSIFICATION OF THE SHAPENED EDGE PORTIONS OF EACH OF SAID TEETH IS PRODUCED BY APPLICATION OF ALTERNATE LATERAL AND RADIAL PRESSURES ALONG EACH OF SAID EDGE PROTIONS, SAID PRESSURES BEING PRODUCED BY ROTATABLE PRESSURE IMPINGEMENT OF A SHAPENING MEMBER AGAINST THE EDGE PORTIONS OF EACH OF SAID TEETH, SAID SHAPENING MEMBER HAVING HELICAL ANGULAR DIFFERENCE FROM THE HELICAL ANGLE OF THE TEETH OF SAID CUTTER OF AT LEAST FIFTEEN SECONDS.
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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |