Patent US2587294A successfully refreshed from Google Patents.
Patent US3272033A successfully refreshed from Google Patents.
US3272033A
Expired / Lapsed
US
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Drilling apparatus for connecting a service line to a main without escape of fluid from the main to the atmosphere
Assignee: Mueller Co
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Filing: 1964-01-30
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Granted: 1966-09-13
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Expires: 1984-01-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Wilbur R Leopold
- 👤 John J Smith
- 👤 Lawrence F Luckenbill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:41
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/04; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/0441; Y10T137/0458; Y10T137/0463; Y10T137/598; Y10T137/612; Y10T137/6123; Y10T408/00; Y10T408/50; Y10T408/55; Y10T408/564; Y10T408/5653
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN DRILLING APPARATUS THE COMBINATION COMPRISING: A DRILL HAVING A SHANK OF REDUCED DIAMETER AND A NONCIRCULAR SECTION AT THE FORWARD END OF SAID SHANK; A CHIPCOLLECTOR COMPRISING A SLEEVE SNUGLY ENCLOSING SAID DRILL AND HAVING EXTERIOR THREADS ON ITS FORWARD END AND A REDUCED INTERIOR CONFIGURATION AT ITS REARWARD END COMPLEMENTARY TO SAID DRILL NONCIRCULAR SECTION AND ENGAGEABLE THEREWITH TO RESTRAIN RELATIVE ROTATION BETWEEN SAID DRILL AND CHIP-COLLECTOR, THE FORWARD END OF SAID CHIP-COLLECTOR, WHEN SO RESTRAINED, BEING LOCATED BEYOND THE FORWARD END OF SAID DRILL; SPRING MEANS ENGAGED WITH SAID DRILL AND CHIPCOLLECTOR FOR YIELDABLY URGING THE LATTER FORWARDLY OF THE FORMER; AND INTERENGAGEABLE SHOULDERS ON SAID DRILL AND IN SAID CHIP-COLLECTOR TO LIMIT FORWARD MOVEMENT OF THE LATTER TO A POSITION WHEREIN SAID CONFIGURATION IS ENGAGED WITH SAID SECTION.
Claim 2
Dependent Claim
132 words
IN DRILLING APPARATUS THE COMBINATION COMPRISING: A DRILL HAVING A SHANK OF REDUCED DIAMETER AND A NONCIRCULAR SECTION AT THE FORWARD END OF SAID SHANK; A CHIPCOLLECTOR COMPRISING A SLEEVE SNUGLY ENCLOSING SAID DRILL AND HAVING EXTERIOR THREADS ON ITS FORWARD END AND A REDUCED INTERIOR CONFIGURATION AT ITS REARWARD END COMPLEMENTARY TO SAID DRILL NONCIRCULAR SECTION AND ENGAGEABLE THEREWITH TO RESTRAIN RELATIVE ROTATION BETWEEN SAID DRILL AND CHIP-COLLECTOR, THE FORWARD END OF SAID CHIP-COLLECTOR, WHEN SO RESTRAINED, BEING LOCATED BEYOND THE FORWARD END OF SAID DRILL; SPRING MEANS ENGAGED WITH SAID DRILL AND CHIPCOLLECTOR FOR YIELDABLY URGING THE LATTER FORWARDLY OF THE FORMER; AND INTERENGAGEABLE SHOULDERS ON SAID DRILL AND IN SAID CHIP-COLLECTOR TO LIMIT FORWARD MOVEMENT OF THE LATTER TO A POSITION WHEREIN SAID CONFIGURATION IS ENGAGED WITH SAID SECTION.
References Cited (Backward Citations)
US2226005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |