US3255330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line protector
Assignee: Cook Electric Co
•
Filing: 1962-08-30
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Granted: 1966-06-07
•
Expires: 1982-08-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Mackenzie
- 👤 Alvin F Paddock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:00
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/22; H01H73/30; H01H71/00; H01H71/08; H01H71/10; H01H71/12; H01H71/14; H01H71/20; H01H71/205; H01T; H01T4/00; H01T4/06; H02; H02B; H02B1/00; H02B1/015; H02B1/04; H02B1/056; H04; H04M; H04M1/00; H04M1/738; H04M1/74; H04M1/745; H01R; H01R13/00; H01R13/66; H01R13/70; H01R13/713
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
290 words
IN A LINE PROTECTOR. THE COMBINATION COMPRISING A BASE MODULE HAVING A PLURALITY OF LINE TERMINALS, A GROUND TERMINAL AND AN ALARM TERMINAL, LINE CONTACTS ON SAID BASE MODULE AND CONNECTED TO SAID LINE TERMINALS, A GROUND CONTACT AND AN ALARM CONTACT ON SAID BASE MODULE AND CONNECTED TO SAID RESPECTIVE GROUND TERMINAL AND SAID ALARM TERMINAL, A PROTECTOR MODULE DISENGAGEABLY CONNECTED TO SAID BASE MODULE AND HAVING A PLURALITY OF LINE CONTACT ELEMENTS, A GROUND CONTACT ELEMENT AND AN ALARM CONTACT ELEMENT DISENGAGEABLY CONTACTING SAID RESPECTIVE LINE CONTACTS, GROUND CONTACT AND ALARM CONTACT ON SAID BASE MODULE, AN OVER-VOLTAGE PROTECTOR DISENGAGEABLE MOUNTED ON SAID PROTECTOR MODULE AND CONNECTED BETWEEN ONE OF SAID LINE CONTACT ELEMENTS AND SAID GROUND CONTACT ELEMENT, AN OVER-CURRENT PROTECTOR MOUNTED ON SAID PROTECTOR MODULE AND HAVING A SHAFT WITH A HEAT COIL MOUNTED THEREON, SAID SHAFT CONSTITUTING ONE TERMINAL ELEMENT OF SAID OVER-CURRENT PROTECTOR, A GEAR ON SAID HEAT COIL, A MOVABLE RATCHET ENGAGEABLE WITH SAID GEAR, A MOVABLE RESET PLUNGER SUPPORTING SAID RATCHET, A SPRING BIASING SAID RESET PLUNGER IN A DIRECTION FOR MOVING SAID RATCHET AWAY FROM SAID GEAR UPON THE RELEASE OF SAID HEAT COIL, A CONTACT BRUSH ENGAGING SAID RATCHET, SAID BRUSH CONSTITUTING THE OTHER TERMINAL ELEMENT OF SAID OVER-CURRENT PROTECTOR, MEANS CONNECTING THE TERMINAL ELEMENTS OF SAID OVERCURRENT PROTECTOR TO SAID LINE CONTACT ELEMENTS ON SAID PROTECTOR MODULE, A GROUND CONTACT MEMBER CONNECTED TO SAID GROUND CONTACT ELEMENT AND ENGAGEABLE BY SAID RATCHET UPON RELEASE OF SAID RATCHET FROM SAID GEAR, AND AN ALARM CONTACT MEMBER CONNECTED TO SAID ALARM CONTACT ELEMENT AND ENGAGEABLE BY SAID RATCHET UPON RELEASE OF SAID RATCHET FROM SAID GEAR, SAID PLUNGER HAVING A TEST BORE THEREIN AFFORDING ACCESS TO SAID RATCHET AND SAID BRUSH.
Claim 2
Dependent Claim
290 words
IN A LINE PROTECTOR. THE COMBINATION COMPRISING A BASE MODULE HAVING A PLURALITY OF LINE TERMINALS, A GROUND TERMINAL AND AN ALARM TERMINAL, LINE CONTACTS ON SAID BASE MODULE AND CONNECTED TO SAID LINE TERMINALS, A GROUND CONTACT AND AN ALARM CONTACT ON SAID BASE MODULE AND CONNECTED TO SAID RESPECTIVE GROUND TERMINAL AND SAID ALARM TERMINAL, A PROTECTOR MODULE DISENGAGEABLY CONNECTED TO SAID BASE MODULE AND HAVING A PLURALITY OF LINE CONTACT ELEMENTS, A GROUND CONTACT ELEMENT AND AN ALARM CONTACT ELEMENT DISENGAGEABLY CONTACTING SAID RESPECTIVE LINE CONTACTS, GROUND CONTACT AND ALARM CONTACT ON SAID BASE MODULE, AN OVER-VOLTAGE PROTECTOR DISENGAGEABLE MOUNTED ON SAID PROTECTOR MODULE AND CONNECTED BETWEEN ONE OF SAID LINE CONTACT ELEMENTS AND SAID GROUND CONTACT ELEMENT, AN OVER-CURRENT PROTECTOR MOUNTED ON SAID PROTECTOR MODULE AND HAVING A SHAFT WITH A HEAT COIL MOUNTED THEREON, SAID SHAFT CONSTITUTING ONE TERMINAL ELEMENT OF SAID OVER-CURRENT PROTECTOR, A GEAR ON SAID HEAT COIL, A MOVABLE RATCHET ENGAGEABLE WITH SAID GEAR, A MOVABLE RESET PLUNGER SUPPORTING SAID RATCHET, A SPRING BIASING SAID RESET PLUNGER IN A DIRECTION FOR MOVING SAID RATCHET AWAY FROM SAID GEAR UPON THE RELEASE OF SAID HEAT COIL, A CONTACT BRUSH ENGAGING SAID RATCHET, SAID BRUSH CONSTITUTING THE OTHER TERMINAL ELEMENT OF SAID OVER-CURRENT PROTECTOR, MEANS CONNECTING THE TERMINAL ELEMENTS OF SAID OVERCURRENT PROTECTOR TO SAID LINE CONTACT ELEMENTS ON SAID PROTECTOR MODULE, A GROUND CONTACT MEMBER CONNECTED TO SAID GROUND CONTACT ELEMENT AND ENGAGEABLE BY SAID RATCHET UPON RELEASE OF SAID RATCHET FROM SAID GEAR, AND AN ALARM CONTACT MEMBER CONNECTED TO SAID ALARM CONTACT ELEMENT AND ENGAGEABLE BY SAID RATCHET UPON RELEASE OF SAID RATCHET FROM SAID GEAR, SAID PLUNGER HAVING A TEST BORE THEREIN AFFORDING ACCESS TO SAID RATCHET AND SAID BRUSH.
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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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |