US3271548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact constructions for circuit interrupters
Assignee: Westinghouse Electric Corp
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Filing: 1964-09-16
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Granted: 1966-09-06
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Expires: 1984-09-16
Abstract
No abstract record available.
Inventors
- 👤 Kesselring Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:41
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/22; H01H1/00; H01H1/12; H01H1/36; H01H1/38; H01H1/385; H01H33/00; H01H33/02; H01H33/04; H01H33/12; H01H33/59; H01H33/593; H01H33/70; H01H33/7015
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
SEPARABLE CONTACT STRUCTURE FOR A CIRCUIT INTERRUPTER INCLUDING MEANS DEFINING A CONDUCTING NOZZLE PORTION HAVING AN OUTLET PORTION AND A TUBULAR DEPENDING MAIN CONTACT PORTION ON THE UPSTREAM SIDE THEREOF, A PLURALITY OF CIRCUMFERENTIALLY-DISPOSED PIVOTALLY-MOUNTED CONTACT FINGERS MAKING MAIN CONTACTING ENGAGEMENT WITH THE EXTERNAL PORTION OF SAID DEPENDING CONTACT PORTION, A MOVABLE ARCING CONTACT HAVING A CAM ACTUATOR FOR ENGAGING THE MAIN CONTACT FINGERS AND EFFECTING OPENING OPERATION THEREOF, MEANS PROVIDING A RELATIVELY STATIONARY ARCING CONTACT STRUCTURE WITHIN SAID NOZZLE PORTION, MEANS SEPARATING THE MOVABLE ARCING CONTACT FROM THE STATIONARY ARCING CONTACT FOLLOWING SEPARATION OF THE MAIN CONTACT FINGERS FROM THE EXTERNAL SIDES OF THE DEPENDING MAIN CONTACT PORTION, WHEREBY RESTRIKING OF THE EXTINGUISHED ARC WILL TAKE PLACE AT A LOCATION REMOTE FROM THE MAIN CONTACTING AREA.
Claim 2
Dependent Claim
127 words
SEPARABLE CONTACT STRUCTURE FOR A CIRCUIT INTERRUPTER INCLUDING MEANS DEFINING A CONDUCTING NOZZLE PORTION HAVING AN OUTLET PORTION AND A TUBULAR DEPENDING MAIN CONTACT PORTION ON THE UPSTREAM SIDE THEREOF, A PLURALITY OF CIRCUMFERENTIALLY-DISPOSED PIVOTALLY-MOUNTED CONTACT FINGERS MAKING MAIN CONTACTING ENGAGEMENT WITH THE EXTERNAL PORTION OF SAID DEPENDING CONTACT PORTION, A MOVABLE ARCING CONTACT HAVING A CAM ACTUATOR FOR ENGAGING THE MAIN CONTACT FINGERS AND EFFECTING OPENING OPERATION THEREOF, MEANS PROVIDING A RELATIVELY STATIONARY ARCING CONTACT STRUCTURE WITHIN SAID NOZZLE PORTION, MEANS SEPARATING THE MOVABLE ARCING CONTACT FROM THE STATIONARY ARCING CONTACT FOLLOWING SEPARATION OF THE MAIN CONTACT FINGERS FROM THE EXTERNAL SIDES OF THE DEPENDING MAIN CONTACT PORTION, WHEREBY RESTRIKING OF THE EXTINGUISHED ARC WILL TAKE PLACE AT A LOCATION REMOTE FROM THE MAIN CONTACTING AREA.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |