Patent US3264907A successfully refreshed from Google Patents.
US3264907A
Expired / Lapsed
US
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Perforator with slug retaining features
Assignee: Mueller Co
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Filing: 1964-10-21
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Granted: 1966-08-09
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Expires: 1984-10-21
Abstract
No abstract record available.
Inventors
- 👤 Frank H Mueller
- 👤 Jr Wilbur R Leopold
- 👤 Carl E Floren
- 👤 Lynn D Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:30
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/04; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/895; Y10T408/904; Y10T408/9042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A CUTTING TOOL FOR TAPPING A HOLE IN A MAIN BY CUTTING A COUPON FROM THE WALL OF THE MAIN AND RETAINING THE COUPON AFTER THE SAME IS CUT, SAID CUTTING TOOL COMPRISING: AN ELONGATED PLUG-LIKE BODY MEMBER HAVING A DRIVING SOCKET AT ONE END THEREOF AND A CLOSED BOTTOM CIRCULAR BORE AT THE OTHER END THEREOF, SAID BODY MEMBER HAVING A FIRST BODY PORTION ADJACENT THE END WITH THE DRIVE SOCKET, SAID FIRST BODY PORTION HAVING EXTERIOR THREADS THEREON, SAID BODY MEMBER HAVING A SECOND BODY PORTION ADJACENT THE END WITH THE CLOSED BODY CIRCULAR BORE, SAID SECOND BODY PORTION BEING OF REDUCED DIAMETER WITH RESPECT TO SAID FIRST BODY PORTION THROUGH ANY PLANE THEREOF NORMAL TO THE AXIS OF THE BODY MEMBER AND HAVING A FORWARD TAPERED CUTTING END PORTION AND A BACK TAPERED SHANK PORTION WHEREBY SAID SECOND BODY PORTION HAS A MAXIMUM DIAMETER IN A PLANE NORMAL TO THE AXIS OF THE BODY MEMBER IN AN AREA BETWEEN THE SHANK PORTION AND THE CUTTING END PORTION THEREOF; SAID CUTTING END PORTION HAVING A FLAT FORWARD FACING CUTTING EDGE DE-
Claim 2
Dependent Claim
183 words
A CUTTING TOOL FOR TAPPING A HOLE IN A MAIN BY CUTTING A COUPON FROM THE WALL OF THE MAIN AND RETAINING THE COUPON AFTER THE SAME IS CUT, SAID CUTTING TOOL COMPRISING: AN ELONGATED PLUG-LIKE BODY MEMBER HAVING A DRIVING SOCKET AT ONE END THEREOF AND A CLOSED BOTTOM CIRCULAR BORE AT THE OTHER END THEREOF, SAID BODY MEMBER HAVING A FIRST BODY PORTION ADJACENT THE END WITH THE DRIVE SOCKET, SAID FIRST BODY PORTION HAVING EXTERIOR THREADS THEREON, SAID BODY MEMBER HAVING A SECOND BODY PORTION ADJACENT THE END WITH THE CLOSED BODY CIRCULAR BORE, SAID SECOND BODY PORTION BEING OF REDUCED DIAMETER WITH RESPECT TO SAID FIRST BODY PORTION THROUGH ANY PLANE THEREOF NORMAL TO THE AXIS OF THE BODY MEMBER AND HAVING A FORWARD TAPERED CUTTING END PORTION AND A BACK TAPERED SHANK PORTION WHEREBY SAID SECOND BODY PORTION HAS A MAXIMUM DIAMETER IN A PLANE NORMAL TO THE AXIS OF THE BODY MEMBER IN AN AREA BETWEEN THE SHANK PORTION AND THE CUTTING END PORTION THEREOF; SAID CUTTING END PORTION HAVING A FLAT FORWARD FACING CUTTING EDGE DE-
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |