US3227983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacked resistor
Assignee: Airco Inc
•
Filing: 1963-08-07
•
Granted: 1966-01-04
•
Expires: 1983-08-07
Abstract
No abstract record available.
Inventors
- 👤 Marinus J Braun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:10
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/10; H01C7/12; H01C7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A SURGE RESISTOR COMPRISING A STACK OF INDIVIDUAL RESISTOR ELEMENTS STACKED TOGETHER IN END-TO-END RELATION, CLAMPING MEANS PRESSING AGAINST OPPOSITE ENDS OF THE STACK AND HOLDING THE INDIVIDUAL RESISTOR ELEMENTS IN ASSEMBLED RELATION, EACH OF SAID RESISTOR ELEMENTS COMPRISING A CYLINDRICAL CARBON BODY AND INTEGRALLY FORMED METAL END PORTIONS, SAID METAL END PORTIONS BEING SIMULTANEOUSLY MOLDED WITH THE CARBON BODY WHEREBY THE ELECTRICAL RESISTANCE OF EACH OF THE RESISTIVE ELEMENTS IS INDEPENDENT OF PHYSICAL PRESSURE OF THE CLAMPING MEANS AGAINST THE STACK, THE WIDTH OF EACH OF SAID RESISTOR ELEMENTS BEING AT LEAST TWICE AS GREAT AS THE HEIGHT OF EACH OF SAID RESISTOR ELEMENTS, EACH OF THE RESISTOR ELEMENTS HAVING AN OPENING THEREIN, ELECTRICAL TERMINAL MEANS ADJACENT TO AND ELECTRICALLY CONTACTING EACH OF SAID STACK, AND SAID CLAMP-
Claim 2
Dependent Claim
129 words
A SURGE RESISTOR COMPRISING A STACK OF INDIVIDUAL RESISTOR ELEMENTS STACKED TOGETHER IN END-TO-END RELATION, CLAMPING MEANS PRESSING AGAINST OPPOSITE ENDS OF THE STACK AND HOLDING THE INDIVIDUAL RESISTOR ELEMENTS IN ASSEMBLED RELATION, EACH OF SAID RESISTOR ELEMENTS COMPRISING A CYLINDRICAL CARBON BODY AND INTEGRALLY FORMED METAL END PORTIONS, SAID METAL END PORTIONS BEING SIMULTANEOUSLY MOLDED WITH THE CARBON BODY WHEREBY THE ELECTRICAL RESISTANCE OF EACH OF THE RESISTIVE ELEMENTS IS INDEPENDENT OF PHYSICAL PRESSURE OF THE CLAMPING MEANS AGAINST THE STACK, THE WIDTH OF EACH OF SAID RESISTOR ELEMENTS BEING AT LEAST TWICE AS GREAT AS THE HEIGHT OF EACH OF SAID RESISTOR ELEMENTS, EACH OF THE RESISTOR ELEMENTS HAVING AN OPENING THEREIN, ELECTRICAL TERMINAL MEANS ADJACENT TO AND ELECTRICALLY CONTACTING EACH OF SAID STACK, AND SAID CLAMP-
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |