Patent US3348103A successfully refreshed from Google Patents.
US3348103A
Expired / Lapsed
US
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Class 1, division 2, panel board
Assignee: Crouse Hinds Co
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Filing: 1966-09-12
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Granted: 1967-10-17
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Expires: 1986-09-12
Abstract
No abstract record available.
Inventors
- 👤 Richard C Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:29
CPC Classifications
H; H01; H01H; H01H23/00; H01H23/02; H01H23/04; H01H23/06; H01H71/00; H01H71/02; H01H71/0264; H01H71/0271
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
AN ELECTRICAL DISTRIBUTION PANEL COMPRISING A CABINET, A PLURALITY OF INDIVIDUAL CIRCUIT CONTROLLERS MOUNTED IN SAID CABINET, EACH OF SAID CIRCUIT CONTROLLERS COMPRISING A FLAME TIGHT EXPLOSION PROOF ENCLOSURE FORMED OF HEAT CONDUCTING MATERIAL HAVING A THERMAL CONDUCTIVITY GREATER THAN ABOUT 50 B.T.U. PER HOUR, PER FOOT SQUARE, PER FOOT THICK, PER DEGREE FAHRENHEIT, A SWITCHING DEVICE MOUNTED IN SAID ENCLOSURE AND HAVING ARC PRODUCING CONTACTS CONNECTED TO TERMINALS, THE INNER SURFACE AREAS OF SAID ENCLOSURE BEING SHAPED AND DIMENSIONED TO CLOSELY FOLLOW THE CONTOURS OF SAID SWITCHING DEVICE IN HEAT EXCHANGING RELATION THERETO, AN ACTUATOR MOUNTED IN FLAME TIGHT RELATION IN SAID ENCLOSURE AND BEING OPERABLE EXTERNALLY THEREOF FOR MOVING THE CONTACTS OF SAID SWITCHING DEVICE INTO AND OUT OF ENGAGEMENT, CONDUCTORS CONNECTED TO THE TERMINALS OF SAID SWITCHING DEVICE AND EXTENDING EXTERNALLY OF SAID ENCLOSURE, SAID CONDUCTORS BEING SEALED IN FLAME TIGHT RELATION IN SAID ENCLOSURE.
Claim 2
Dependent Claim
148 words
AN ELECTRICAL DISTRIBUTION PANEL COMPRISING A CABINET, A PLURALITY OF INDIVIDUAL CIRCUIT CONTROLLERS MOUNTED IN SAID CABINET, EACH OF SAID CIRCUIT CONTROLLERS COMPRISING A FLAME TIGHT EXPLOSION PROOF ENCLOSURE FORMED OF HEAT CONDUCTING MATERIAL HAVING A THERMAL CONDUCTIVITY GREATER THAN ABOUT 50 B.T.U. PER HOUR, PER FOOT SQUARE, PER FOOT THICK, PER DEGREE FAHRENHEIT, A SWITCHING DEVICE MOUNTED IN SAID ENCLOSURE AND HAVING ARC PRODUCING CONTACTS CONNECTED TO TERMINALS, THE INNER SURFACE AREAS OF SAID ENCLOSURE BEING SHAPED AND DIMENSIONED TO CLOSELY FOLLOW THE CONTOURS OF SAID SWITCHING DEVICE IN HEAT EXCHANGING RELATION THERETO, AN ACTUATOR MOUNTED IN FLAME TIGHT RELATION IN SAID ENCLOSURE AND BEING OPERABLE EXTERNALLY THEREOF FOR MOVING THE CONTACTS OF SAID SWITCHING DEVICE INTO AND OUT OF ENGAGEMENT, CONDUCTORS CONNECTED TO THE TERMINALS OF SAID SWITCHING DEVICE AND EXTENDING EXTERNALLY OF SAID ENCLOSURE, SAID CONDUCTORS BEING SEALED IN FLAME TIGHT RELATION IN SAID ENCLOSURE.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |