US3101397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal overload relay
Assignee: Federal Pacific Electric Co
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Filing: 1960-11-09
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Granted: 1963-08-20
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Expires: 1980-11-09
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Norden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:04
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/14; H01H71/16; H01H71/162; H01H73/00; H01H73/22; H01H73/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A THERMAL OVERLOAD RELAY FOR AN ELECTRIC CIRCUIT, COMPRISING A COMPANION PAIR OF SEPARABLE CONTACTS, OPERATING MECHANISM THEREFOR INCLUDING TOGLE LINKAGE ANS AN OPERATING DEVICE COMPRISING A THERMAL ELEMENT RESPONSIVE TO A PREDETERMINED THEREMAL OVERLOAD TO OVER-TOGGLE SAID LINKAGE AND OPEN SAID CONTACTS, AND AN AMBIENT TEMPERATURE COMPENSATING THERMAL ELEMENT SEPARATE FROM BUT COOPERATING WITH SAID OPERATINGH MECHANISM TO CONTROL AT LEAST ONE OVER-TOGGLE POINT OF SAID LINKAGE, SAID COMPENSATING ELEMENT BEING PHYSICALLY SEPARATE FROM AND SEPARATED FROM SAID OPERATING MECHANISM AT THE INSTANT FOLLOWING OVERTOGGLE OF SAID LINKAGE.
Claim 2
Dependent Claim
89 words
A THERMAL OVERLOAD RELAY FOR AN ELECTRIC CIRCUIT, COMPRISING A COMPANION PAIR OF SEPARABLE CONTACTS, OPERATING MECHANISM THEREFOR INCLUDING TOGLE LINKAGE ANS AN OPERATING DEVICE COMPRISING A THERMAL ELEMENT RESPONSIVE TO A PREDETERMINED THEREMAL OVERLOAD TO OVER-TOGGLE SAID LINKAGE AND OPEN SAID CONTACTS, AND AN AMBIENT TEMPERATURE COMPENSATING THERMAL ELEMENT SEPARATE FROM BUT COOPERATING WITH SAID OPERATINGH MECHANISM TO CONTROL AT LEAST ONE OVER-TOGGLE POINT OF SAID LINKAGE, SAID COMPENSATING ELEMENT BEING PHYSICALLY SEPARATE FROM AND SEPARATED FROM SAID OPERATING MECHANISM AT THE INSTANT FOLLOWING OVERTOGGLE OF SAID LINKAGE.
References Cited (Backward Citations)
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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) | 1966-08-19 | 1967-02-18 | 1967-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-19 | 1971-02-18 | 1971-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-19 | 1975-02-18 | 1975-08-20 | $7700.00 | Window Closed / Lapsed |