Patent US3287566A successfully refreshed from Google Patents.
US3287566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing for underground distribution apparatus
Assignee: McGraw Edison Co
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Filing: 1963-12-23
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Granted: 1966-11-22
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Richard J Lang
- 👤 Mike P Crivello
- 👤 Ronald J Bertling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:19
CPC Classifications
H; H02; H02B; H02B7/00; H02B7/06; H02B7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
IN AN UNDERGROUND ELECTRICAL DISTRIBUTION SYSTEM FOR RESIDENTIAL SERVICE, IN COMBINATION, A TUBULAR OPEN-ENDED VAULT OF BITUMINIZED FIBER DISPOSED IN THE EARTH WITH ITS AXIS VERTICAL AND ITS UPPER END AT GROUND LEVEL AND HAVING CONDUCTOR PASSAGE MEANS EXTENDING THERETHROUGH, AN OPEN-ENDED METALLIC CYLINDRICAL SIDEWALL SECTION DISPOSED ABOVE GROUND LEVEL AND AFFIXED TO SAID VAULT ADJACENT THE UPPER END THEREOF AND HAVING A PLURALITY OF LOUVERS THEREIN, A COVER REMOVABLE SECURED TO AND CLOSING THE OPEN UPPER END OF SAID SIDEWALL SECTION, A DISTRIBUTION TRANSFORMER DISPOSED WITHIN SAID VAULT BELOW GROUND LEVEL AND HAVING A SEALED CASING ENCLOSING A PRIMARY AND A SECONDARY WINDING AND BEING PROVIDED WITH A PERIPHERALLY CONTINUOUS SIDEWALL AND A BOTTOM WALL SECURED TO SAID SIDEWALL ABOVE THE LOWER END THEREOF, WHEREBY THE COOLING CHARACTERISTICS OF SAID TRANSFORMER ARE NOT AFFECTED BY DEBRIS WITHIN SAID VAULT UP TO THE LEVEL OF SAID BOTTOM WALL, A SECTIONALIZING SWITCH HAVING THREE SPACED APART STATIONARY CONTACTS AND A MANUALLY OPERABLE MOVABLE
Claim 2
Dependent Claim
162 words
IN AN UNDERGROUND ELECTRICAL DISTRIBUTION SYSTEM FOR RESIDENTIAL SERVICE, IN COMBINATION, A TUBULAR OPEN-ENDED VAULT OF BITUMINIZED FIBER DISPOSED IN THE EARTH WITH ITS AXIS VERTICAL AND ITS UPPER END AT GROUND LEVEL AND HAVING CONDUCTOR PASSAGE MEANS EXTENDING THERETHROUGH, AN OPEN-ENDED METALLIC CYLINDRICAL SIDEWALL SECTION DISPOSED ABOVE GROUND LEVEL AND AFFIXED TO SAID VAULT ADJACENT THE UPPER END THEREOF AND HAVING A PLURALITY OF LOUVERS THEREIN, A COVER REMOVABLE SECURED TO AND CLOSING THE OPEN UPPER END OF SAID SIDEWALL SECTION, A DISTRIBUTION TRANSFORMER DISPOSED WITHIN SAID VAULT BELOW GROUND LEVEL AND HAVING A SEALED CASING ENCLOSING A PRIMARY AND A SECONDARY WINDING AND BEING PROVIDED WITH A PERIPHERALLY CONTINUOUS SIDEWALL AND A BOTTOM WALL SECURED TO SAID SIDEWALL ABOVE THE LOWER END THEREOF, WHEREBY THE COOLING CHARACTERISTICS OF SAID TRANSFORMER ARE NOT AFFECTED BY DEBRIS WITHIN SAID VAULT UP TO THE LEVEL OF SAID BOTTOM WALL, A SECTIONALIZING SWITCH HAVING THREE SPACED APART STATIONARY CONTACTS AND A MANUALLY OPERABLE MOVABLE
References Cited (Backward Citations)
US2024742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |