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US3146641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recessing tool
Assignee: Erickson Tool Co
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Filing: 1961-10-26
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Granted: 1964-09-01
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Expires: 1981-10-26
Abstract
No abstract record available.
Inventors
- 👤 Milton L Benjamin
- 👤 Elmer J Kalat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:04
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03432; B23B29/03478; B23B29/03485; Y; Y10; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/854; Y10T408/855; Y10T82/00; Y10T82/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
A RECESSING TOOL COMPRISING A BODY HAVING A TUBULAR EXTENSION ADAPTED FOR AXIAL SLIDING ENGAGEMENT WITH THE WALL OF A WORKPIECE BORE TO BE RECESSED AND AN ECCENTRICALLY DISPOSED BORE; A CUTTER SHAFT ROTATABLE IN SAID ECCENTRIC BORE AND HAVING A CUTTING EDGE WHICH IS AXIALLY SPACED FROM ONE END OF SAID EXTENSION AND WHICH MOVES RADIALLY OUTWARD OF SAID EXTENSION WHEN SAID SHAFT IS TURNED IN SAID ECCENTRIC BORE, SAID SHAFT BEING LATERALLY FIXED RELATIVE TO SAID BODY; A CROSS-PIN EXTENDING DIAMETFIXED RELATIVE TO SAID BODY; A CROSS-PIN EXTENDING DIAMETRICALLY THROUGH SAID SHAFT; SAID BODY HAVING A HELICAL SLOT RECEIVING THE ENDS OF SAID CROSS-PIN FOR TURNING SAID SHAFT UPON AXIAL MOVEMENT OF SAID BODY WITH RESPECT TO SAID SHAFT; AND THRUST MEANS HAVING FIXED AXIAL RELATION TO SAID SHAFT AND CROSS-PIN WHEREBY AXIAL ADVANCE OF SAID BODY AND EXTENSION MOVES SAID ONE END OF THE LATTER CLOSER TO SAID CUTTING EDGE TO PROVIDE INCREASED LATERAL SUPPORT FOR SAID SHAFT ADJACENT TO SAID CUTTING EDGE, SAID THRUST MEANS COMPRISING A FIRST THRUST MEMBER ADAPTED TO ENGAGE A LOCATING STOP, A SECOND THRUST MEMBER ROTATABLE ON SAID BODY AND HAVING OPENINGS TO RECEIVE THE ENDS OF SAID CROSS-PIN, AND AN ANTI-FRICTION THRUST BEARING BETWEEN SAID THRUST MEMBERS TO ENABLE RELATIVE ROTATION THEREOF.
Claim 2
Dependent Claim
212 words
A RECESSING TOOL COMPRISING A BODY HAVING A TUBULAR EXTENSION ADAPTED FOR AXIAL SLIDING ENGAGEMENT WITH THE WALL OF A WORKPIECE BORE TO BE RECESSED AND AN ECCENTRICALLY DISPOSED BORE; A CUTTER SHAFT ROTATABLE IN SAID ECCENTRIC BORE AND HAVING A CUTTING EDGE WHICH IS AXIALLY SPACED FROM ONE END OF SAID EXTENSION AND WHICH MOVES RADIALLY OUTWARD OF SAID EXTENSION WHEN SAID SHAFT IS TURNED IN SAID ECCENTRIC BORE, SAID SHAFT BEING LATERALLY FIXED RELATIVE TO SAID BODY; A CROSS-PIN EXTENDING DIAMETFIXED RELATIVE TO SAID BODY; A CROSS-PIN EXTENDING DIAMETRICALLY THROUGH SAID SHAFT; SAID BODY HAVING A HELICAL SLOT RECEIVING THE ENDS OF SAID CROSS-PIN FOR TURNING SAID SHAFT UPON AXIAL MOVEMENT OF SAID BODY WITH RESPECT TO SAID SHAFT; AND THRUST MEANS HAVING FIXED AXIAL RELATION TO SAID SHAFT AND CROSS-PIN WHEREBY AXIAL ADVANCE OF SAID BODY AND EXTENSION MOVES SAID ONE END OF THE LATTER CLOSER TO SAID CUTTING EDGE TO PROVIDE INCREASED LATERAL SUPPORT FOR SAID SHAFT ADJACENT TO SAID CUTTING EDGE, SAID THRUST MEANS COMPRISING A FIRST THRUST MEMBER ADAPTED TO ENGAGE A LOCATING STOP, A SECOND THRUST MEMBER ROTATABLE ON SAID BODY AND HAVING OPENINGS TO RECEIVE THE ENDS OF SAID CROSS-PIN, AND AN ANTI-FRICTION THRUST BEARING BETWEEN SAID THRUST MEMBERS TO ENABLE RELATIVE ROTATION THEREOF.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |