US3127946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill bit
Assignee: Individual
•
Filing: 1961-05-01
•
Granted: 1964-04-07
•
Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 Carroll L Deely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:05
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/60; E21B10/02; E21B10/04; E21B10/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
213 words
A DRILL BIT COMPRISING A HOLLOW, THREADED MEMBER WITH AN ENLARGED BIT BODY THEREON, SAID BIT BODY HAVING THE UPPER PORTION THEREOF SUBSTANTIALLY CYLINDRICAL IN FORM, SAID ENLARGED BODY HAVING AN AXIAL OPENING FORMED IN THE UPPER PORTION THEREOF WHICH EXTENDS THEREINTO, SAID BODY HAVING A PASSAGE EXTENDING OUT OF SAID AXIAL OPENING TO A POINT ON THE LOWER FACE OF SAID BIT BODY AND BEING OFF-SET LATERALLY WITH RESPECT TO THE ROTATIONAL AXIS THEREOF, SAID BIT BODY HAVING AN AXIAL, CYLINDRICAL, CORE RECEIVING HOLE FORMED IN THE LOWER PORTION THEREOF AND EXTENDING THEREINTO, A WALL ENCIRCLING SAID AXIAL, CYLINDRICAL, CORE RECEIVING HOLE FOR A SPACED DISTANCE UPWARD ABOVE THE LOWER FACE OF SAID BIT BODY, SAID BIT BODY HAVING A CLOSED, LATERAL CONDUIT LEADING FROM SAID AXIAL, CYLINDRICAL, CORE RECEIVING HOLE TO A SIDE OF SAID BIT BODY, SAID BIT BODY HAVING AN UPWARDLY EXTENDING GROOVE FORMED IN THE SIDE THEREOF, THE WIDTH OF WHICH GROOVE IS AT LEAST AS WIDE AS THE DIAMETER OF SAID AXIAL, CYLINDRICAL, CORE RECEIVING HOLE WHICH CLOSED, LATERAL CONDUIT CONNECTS WITH SAID GROVE, , AND ABRADING ELEMENTS INSET ON THE FACE OF SAID BIT AND IN THE WALL SURROUNDING SAID AXIAL, CYLINDRICAL, CORE RECEIVING HOLE IN POSITION TO BE IN CONTACT WITH THE FORMATION BEING DRILLED.
Claim 2
Dependent Claim
213 words
A DRILL BIT COMPRISING A HOLLOW, THREADED MEMBER WITH AN ENLARGED BIT BODY THEREON, SAID BIT BODY HAVING THE UPPER PORTION THEREOF SUBSTANTIALLY CYLINDRICAL IN FORM, SAID ENLARGED BODY HAVING AN AXIAL OPENING FORMED IN THE UPPER PORTION THEREOF WHICH EXTENDS THEREINTO, SAID BODY HAVING A PASSAGE EXTENDING OUT OF SAID AXIAL OPENING TO A POINT ON THE LOWER FACE OF SAID BIT BODY AND BEING OFF-SET LATERALLY WITH RESPECT TO THE ROTATIONAL AXIS THEREOF, SAID BIT BODY HAVING AN AXIAL, CYLINDRICAL, CORE RECEIVING HOLE FORMED IN THE LOWER PORTION THEREOF AND EXTENDING THEREINTO, A WALL ENCIRCLING SAID AXIAL, CYLINDRICAL, CORE RECEIVING HOLE FOR A SPACED DISTANCE UPWARD ABOVE THE LOWER FACE OF SAID BIT BODY, SAID BIT BODY HAVING A CLOSED, LATERAL CONDUIT LEADING FROM SAID AXIAL, CYLINDRICAL, CORE RECEIVING HOLE TO A SIDE OF SAID BIT BODY, SAID BIT BODY HAVING AN UPWARDLY EXTENDING GROOVE FORMED IN THE SIDE THEREOF, THE WIDTH OF WHICH GROOVE IS AT LEAST AS WIDE AS THE DIAMETER OF SAID AXIAL, CYLINDRICAL, CORE RECEIVING HOLE WHICH CLOSED, LATERAL CONDUIT CONNECTS WITH SAID GROVE, , AND ABRADING ELEMENTS INSET ON THE FACE OF SAID BIT AND IN THE WALL SURROUNDING SAID AXIAL, CYLINDRICAL, CORE RECEIVING HOLE IN POSITION TO BE IN CONTACT WITH THE FORMATION BEING DRILLED.
References Cited (Backward Citations)
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Cited
US2614809A
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US2990897A
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US2931630A
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FR1257184A
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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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |