Patent US3333489A successfully refreshed from Google Patents.
US3333489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid cooled spade drills
Assignee: Waukesha Cutting Tools Inc
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Filing: 1965-05-06
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Granted: 1967-08-01
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Expires: 1985-05-06
Abstract
No abstract record available.
Inventors
- 👤 Carl W Mossberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:45
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/06; B23B51/063; B23B51/0002; B23B51/0003; B23B51/00035; Y; Y10; Y10T; Y10T407/00; Y10T407/14; Y10T407/19; Y10T407/1946; Y10T407/1948; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/458; Y10T408/89; Y10T408/909; Y10T408/9098; Y10T408/90993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A DRILLING TOOL ADAPTED TO FORM A BORE HOLE IN A WORKPIECE WHILE SUPPLYING LIQUID COOLANT TO THE CUTTING ZONE AT THE INNER END OF THE BORE HOLE COMPRISING: A DRILL STEM HAVING A CUTTING END AND HAVING AN AXIAL COOLANT BORE EXTENDING TO SAID CUTTING END, SAID BORE ADAPTED TO SUPPLY LIQUID COOLANT TO THE CUTTING END; A DEMOUNTABLE CUTTING BIT SECURED IN THE CUTTING END OF THE TOOL AND PASSING ACROSS SAID AXIAL BORE; SAID CUTTING BIT HAVING A THICKNESS LESS THAN THE DIAETER OF THE AXIAL BORE AND PROVIDING AT LEAST COOLANT NOZZLE PRESENTED AT THE CUTTING END OF SAID DRILLING TOOL; AN ATTACHING ELEMENT SECURING THE CUTTING BIT IN POSITION IN THE CUTTING END OF THE DRILLING TOOL; SAID ATTACHING ELEMENT PASSING ACROSS THE COOLANT NOZZLE WHICH IS DELINEATED BY SAID CUTTING BIT; SAID ATTACHING ELEMENT RESTRICTING SAID COOLANT NOZZLE AND DELINEATING AT LEAST ONE HIGH VELOCITY JET NOZZLE AT THE CUTTING END OF THE DRILLING TOOL;
Claim 2
Dependent Claim
161 words
A DRILLING TOOL ADAPTED TO FORM A BORE HOLE IN A WORKPIECE WHILE SUPPLYING LIQUID COOLANT TO THE CUTTING ZONE AT THE INNER END OF THE BORE HOLE COMPRISING: A DRILL STEM HAVING A CUTTING END AND HAVING AN AXIAL COOLANT BORE EXTENDING TO SAID CUTTING END, SAID BORE ADAPTED TO SUPPLY LIQUID COOLANT TO THE CUTTING END; A DEMOUNTABLE CUTTING BIT SECURED IN THE CUTTING END OF THE TOOL AND PASSING ACROSS SAID AXIAL BORE; SAID CUTTING BIT HAVING A THICKNESS LESS THAN THE DIAETER OF THE AXIAL BORE AND PROVIDING AT LEAST COOLANT NOZZLE PRESENTED AT THE CUTTING END OF SAID DRILLING TOOL; AN ATTACHING ELEMENT SECURING THE CUTTING BIT IN POSITION IN THE CUTTING END OF THE DRILLING TOOL; SAID ATTACHING ELEMENT PASSING ACROSS THE COOLANT NOZZLE WHICH IS DELINEATED BY SAID CUTTING BIT; SAID ATTACHING ELEMENT RESTRICTING SAID COOLANT NOZZLE AND DELINEATING AT LEAST ONE HIGH VELOCITY JET NOZZLE AT THE CUTTING END OF THE DRILLING TOOL;
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |