US3304816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable drill tip and coupling means
Assignee: Individual
•
Filing: 1965-04-07
•
Granted: 1967-02-21
•
Expires: 1985-04-07
Abstract
No abstract record available.
Inventors
- 👤 Louis C Galorneau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:25
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/04; B23B51/0486; B23B51/06; B23B51/063; B23B51/066; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7009; Y10T408/00; Y10T408/89; Y10T408/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
IN A CUTTING TOOL FOR USE IN THE MACHINE TOOL INDUSTRY, THE COMBINATION OF, A DRIVER MEMBER; A DETACHABLE CUTTING TOOL; AT LEAST ONE CUTTING EDGE ON SAID DETACHABLE CUTTING TOOL; A SINGLE UNDERCUT IN THE CUTTING TOOL BODY FORMING A CYLINDRICAL SECTION THEREON; AN ENLARGED FLANGE PORTION ON SAID CYLINDRICAL SECTION; TWO OPPOSED NON-PARALLEL SURFACES ON SAID ENLARGED FLANGE PORTION, ONE EDGE SURFACE HAVING A HELIX THEREON, WHILE THE OTHER EDGE OF SAID ENLARGED FLANGE IS FLAT THROUGHOUT ITS FULL LENGTH AND PERPENDICULAR TO THE ROTATIONAL AXIS OF SAID TOOL; A BACK TAPER ON THE HELICAL EDGE OF SAID FLANGE; A HOLLOW, GENERALLY FLAT BOTTOM SLEEVE PORTION ON ONE END OF SAID DRIVER MEMBER; A SINGLE CYLINDRICAL UNDERCUT IN SAID SLEEVE; TWO OPPOSED NON-PARALLEL EDGE SURFACES ON SAID UNDERCUT, ONE EDGE SURFACE THEREOF HAVING A HELIX THEREON, WHILE THE OTHER SURFACE IS FLAT THROUGHOUT ITS FULL LENGTH AND PERPENDICULAR TO THE ROTATIONAL AXIS OF THE TOOL; ROTATIONAL ENGAGEMENT OF SAID DRIVER AND SAID DETACHABLE CUTTING TOOL BETWEEN SAID NON-PARALLEL EDGES OF SAID ENLARGED FLANGE AND SAID UNDERCUT JOINING SAID MEMBERS AS A SINGLE UNIT ASSEMBLY.
Claim 2
Dependent Claim
186 words
IN A CUTTING TOOL FOR USE IN THE MACHINE TOOL INDUSTRY, THE COMBINATION OF, A DRIVER MEMBER; A DETACHABLE CUTTING TOOL; AT LEAST ONE CUTTING EDGE ON SAID DETACHABLE CUTTING TOOL; A SINGLE UNDERCUT IN THE CUTTING TOOL BODY FORMING A CYLINDRICAL SECTION THEREON; AN ENLARGED FLANGE PORTION ON SAID CYLINDRICAL SECTION; TWO OPPOSED NON-PARALLEL SURFACES ON SAID ENLARGED FLANGE PORTION, ONE EDGE SURFACE HAVING A HELIX THEREON, WHILE THE OTHER EDGE OF SAID ENLARGED FLANGE IS FLAT THROUGHOUT ITS FULL LENGTH AND PERPENDICULAR TO THE ROTATIONAL AXIS OF SAID TOOL; A BACK TAPER ON THE HELICAL EDGE OF SAID FLANGE; A HOLLOW, GENERALLY FLAT BOTTOM SLEEVE PORTION ON ONE END OF SAID DRIVER MEMBER; A SINGLE CYLINDRICAL UNDERCUT IN SAID SLEEVE; TWO OPPOSED NON-PARALLEL EDGE SURFACES ON SAID UNDERCUT, ONE EDGE SURFACE THEREOF HAVING A HELIX THEREON, WHILE THE OTHER SURFACE IS FLAT THROUGHOUT ITS FULL LENGTH AND PERPENDICULAR TO THE ROTATIONAL AXIS OF THE TOOL; ROTATIONAL ENGAGEMENT OF SAID DRIVER AND SAID DETACHABLE CUTTING TOOL BETWEEN SAID NON-PARALLEL EDGES OF SAID ENLARGED FLANGE AND SAID UNDERCUT JOINING SAID MEMBERS AS A SINGLE UNIT ASSEMBLY.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |