Patent US3198908A successfully refreshed from Google Patents.
US3198908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor operated circuit breaker
Assignee: General Electric Co
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Filing: 1960-11-14
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Granted: 1965-08-03
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Expires: 1980-11-14
Abstract
No abstract record available.
Inventors
- 👤 Julius H Staak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:36
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H3/26; H01H3/264; H01H71/00; H01H71/10; H01H71/66; H01H2071/665
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
AN ELECTRICALLY OPERATED SWITCHING DEVICE COMPRISING AN ELECTRIC SWITCH HAVING AN INSULATING ENCLOSURE AND A MANUALLY OPERABLE HANDLE PROJECTING FROM SAID INSULATING ENCLOSURE, AN ELECTRIC MOTOR MOUNTED ADJACENT SAID INSULATING CASING AND INCLUDING A FIELD WINDING AND AN ARMATURE, SAID ARMATURE HAVING AN ELONGATED OPERATING SHAFT HAVING A THREADED PORTION INTERMEDIATE THE ENDS THEREOF, MEANS SUPPORTING SAID ARMATURE AND SAID SHAFT FOR RECIPROCATING LONGITUDINAL MOVEMENT RELATIVE TO SAID FIELD WINDING, A TRAVELLING NUT IN ENGAGEMENT WITH SAID THREADED PORTION, MEANS CONNECTING SAID TRAVELLING NUT TO SAID MANUALLY OPERABLE HANDLE, AND SAID SHAFT, RESILIENT MEANS OPPOSING SAID LONGITUDINAL MOVEMENT OF SAID SHAFT, AND MEANS LIMITING MOVEMENT OF SAID HANDLE, WHEREBY CONTINUED ROTATION OF SAID SHAFT AFTER SAID HANDLE ENCOUNTERS SAID LIMITING MEANS CAUSES LONGITUDINAL MOVEMENT OF SAID SHAFT AND SAID ARMATURE AGAINST SAID BIASING MEANS.
Claim 2
Dependent Claim
134 words
AN ELECTRICALLY OPERATED SWITCHING DEVICE COMPRISING AN ELECTRIC SWITCH HAVING AN INSULATING ENCLOSURE AND A MANUALLY OPERABLE HANDLE PROJECTING FROM SAID INSULATING ENCLOSURE, AN ELECTRIC MOTOR MOUNTED ADJACENT SAID INSULATING CASING AND INCLUDING A FIELD WINDING AND AN ARMATURE, SAID ARMATURE HAVING AN ELONGATED OPERATING SHAFT HAVING A THREADED PORTION INTERMEDIATE THE ENDS THEREOF, MEANS SUPPORTING SAID ARMATURE AND SAID SHAFT FOR RECIPROCATING LONGITUDINAL MOVEMENT RELATIVE TO SAID FIELD WINDING, A TRAVELLING NUT IN ENGAGEMENT WITH SAID THREADED PORTION, MEANS CONNECTING SAID TRAVELLING NUT TO SAID MANUALLY OPERABLE HANDLE, AND SAID SHAFT, RESILIENT MEANS OPPOSING SAID LONGITUDINAL MOVEMENT OF SAID SHAFT, AND MEANS LIMITING MOVEMENT OF SAID HANDLE, WHEREBY CONTINUED ROTATION OF SAID SHAFT AFTER SAID HANDLE ENCOUNTERS SAID LIMITING MEANS CAUSES LONGITUDINAL MOVEMENT OF SAID SHAFT AND SAID ARMATURE AGAINST SAID BIASING MEANS.
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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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |