US3115354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated pipe coupling
Assignee: Mueller Co
•
Filing: 1959-12-15
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Granted: 1963-12-24
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Expires: 1979-12-15
Abstract
No abstract record available.
Inventors
- 👤 Walter J Bowan
- 👤 John J Smith
- 👤 Jr Wilbur R Leopold
- 👤 Frank H Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:36
CPC Classifications
F; F16; F16L; F16L25/00; F16L25/02; F16L25/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
AN INSULATED PIPE COUPLING COMPRISING: A HOLLOW METAL BODY TERMINATING IN A CYLINDRICAL PORTION HAVING AN ANNULAR END FACE PIERCED BY A CENTRAL PASSAGEWAY, SAID END FACE BEING PROVIDED WITH A FLAT ANNULAR SURFACE; AN ANNULAR GROOVE IN SAID SURFACE GENERALLY RECTANGULAR IN RADIAL SECTION AND SURROUNDING SAID PASSAGEWAY; A TUBULAR METAL BODY TERMINATING AT ONE END IN A FLAT ANNULAR END FACE OPPOSED TO SAID FLAT ANNULAR SURFACE ON SAID HOLLOW BODY; AN EXTERIOR ENLARGEMENT ON SAID TUBULAR BODY ON ITS SAID ONE END, THE REAR FACE OF SAID ENLARGEMENT BEING INCLINED REARWARDLY AND MERGING WITH A GENERALLY-CYLINDRICAL SECTION OF SAID BODY HAVING AT LEAST ONE CIRCUMFERENTIAL GROOVE ADJACENT THE JUNCTION OF SAID REAR FACE WITH SAID SECTION, SAID GROOVE DEFINING A SHOULDER ON SAID CYLINDRICAL BODY SECTION ADJACENT AND FACING SAID REAR FACE; A TOUGH ELECTRICALLY-INSULATING RELATIVELY-THIN COVERING OF GASKET MATERIAL HAVING COLD FLOW CHARACTERISTICS MOLDED ONTO SAID TUBULAR BODY END FACE, ONTO SAID ENLARGEMENT, ONTO SAID BODY SECTION, AND FILLING SAID CIRCUMFERENTIAL GROOVE, THE OUTER SURFACE OF SAID COVERING ON SAID BODY SECTION AND IN SAID GROOVE DEFINING A CYL-
Claim 2
Dependent Claim
183 words
AN INSULATED PIPE COUPLING COMPRISING: A HOLLOW METAL BODY TERMINATING IN A CYLINDRICAL PORTION HAVING AN ANNULAR END FACE PIERCED BY A CENTRAL PASSAGEWAY, SAID END FACE BEING PROVIDED WITH A FLAT ANNULAR SURFACE; AN ANNULAR GROOVE IN SAID SURFACE GENERALLY RECTANGULAR IN RADIAL SECTION AND SURROUNDING SAID PASSAGEWAY; A TUBULAR METAL BODY TERMINATING AT ONE END IN A FLAT ANNULAR END FACE OPPOSED TO SAID FLAT ANNULAR SURFACE ON SAID HOLLOW BODY; AN EXTERIOR ENLARGEMENT ON SAID TUBULAR BODY ON ITS SAID ONE END, THE REAR FACE OF SAID ENLARGEMENT BEING INCLINED REARWARDLY AND MERGING WITH A GENERALLY-CYLINDRICAL SECTION OF SAID BODY HAVING AT LEAST ONE CIRCUMFERENTIAL GROOVE ADJACENT THE JUNCTION OF SAID REAR FACE WITH SAID SECTION, SAID GROOVE DEFINING A SHOULDER ON SAID CYLINDRICAL BODY SECTION ADJACENT AND FACING SAID REAR FACE; A TOUGH ELECTRICALLY-INSULATING RELATIVELY-THIN COVERING OF GASKET MATERIAL HAVING COLD FLOW CHARACTERISTICS MOLDED ONTO SAID TUBULAR BODY END FACE, ONTO SAID ENLARGEMENT, ONTO SAID BODY SECTION, AND FILLING SAID CIRCUMFERENTIAL GROOVE, THE OUTER SURFACE OF SAID COVERING ON SAID BODY SECTION AND IN SAID GROOVE DEFINING A CYL-
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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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |