Patent US2057007A successfully refreshed from Google Patents.
Patent US3235694A successfully refreshed from Google Patents.
US3235694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage double break air switch with damping resistors
Assignee: ABB Inc USA
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Filing: 1962-11-13
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Granted: 1966-02-15
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Expires: 1982-11-13
Abstract
No abstract record available.
Inventors
- 👤 Karl A Thallner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:46
CPC Classifications
H; H01; H01H; H01H31/00; H01H31/14; H01H31/16; H01H31/18; H01H31/20; H01H9/00; H01H9/30; H01H9/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
IN COMBINATION; A HIGH VOLTAGE DOUBLE BREAK AIR SWITCH AND A FIRST AND SECOND DAMPING RESITOR MEANS; SAID DOUBLE BREAK AIR SWITCH COMPRISING A MOVABLE BLADE AND A FIRST AND SECOND STATIONARY CONTACT POSITIONED TO BE SIMULTANEOUSLY ENGAGED AND DISENGAGED BY RESPECTIVE ENDS OF SAID MOVABLE BLADE RESPONSIVE TO ROTATION OF SAID BLADE; SAID FIRST RESISTOR MEANS HAVING A FIRST TERMINAL PERMANENTLY CONNECTED TO SAID FIRST STATIONARY CONTACT AND BEING MOUNTED ABOVE SAID FIRST STATIONARY CONTACT; SAID SECODN RESISTOR MEANS HAVING A FIRST TERMINAL PERMANENTLY CONNECTED TO SAID SECOND STATIONARY CONTACT AND BEING MOUNTED ABOVE SAID SECOND STATIONARY CONTACT; SAID FIRST AND SECOND RESISTOR MEANS HASVING SECOND TERMINALS; SAID SECOND TERMINALS OF SAID FIRST AND SECOND RESISTOR MEANS HAVING FIRST ELECTRODE MEANS EXTENDING IN A PLANE WHICH IS PARALLEL TO THE PLANE OF MOTION OF SAID MOVABLE BLADE; SAID FIRST ELECTRODE MEANS BEING ELECTRICALLY CONNECTED TO SAID RESPECTIVE ENDS OF SAID MOVABLE BLADE WHEN SAID RESPECTIVE ENDS OF SAID MOVABLE BLAE ENGAGE SAID FIRST AND SECOND STATIONARY CONTACTS; SAID FIRST ELECTRODE MEANS DISENGAGING SAID RESPECTIVE ENDS OF SAID MOVABLE BLADE AFTER SAID MOVABLE BLADE IS ROTATED BY A
Claim 2
Dependent Claim
188 words
IN COMBINATION; A HIGH VOLTAGE DOUBLE BREAK AIR SWITCH AND A FIRST AND SECOND DAMPING RESITOR MEANS; SAID DOUBLE BREAK AIR SWITCH COMPRISING A MOVABLE BLADE AND A FIRST AND SECOND STATIONARY CONTACT POSITIONED TO BE SIMULTANEOUSLY ENGAGED AND DISENGAGED BY RESPECTIVE ENDS OF SAID MOVABLE BLADE RESPONSIVE TO ROTATION OF SAID BLADE; SAID FIRST RESISTOR MEANS HAVING A FIRST TERMINAL PERMANENTLY CONNECTED TO SAID FIRST STATIONARY CONTACT AND BEING MOUNTED ABOVE SAID FIRST STATIONARY CONTACT; SAID SECODN RESISTOR MEANS HAVING A FIRST TERMINAL PERMANENTLY CONNECTED TO SAID SECOND STATIONARY CONTACT AND BEING MOUNTED ABOVE SAID SECOND STATIONARY CONTACT; SAID FIRST AND SECOND RESISTOR MEANS HASVING SECOND TERMINALS; SAID SECOND TERMINALS OF SAID FIRST AND SECOND RESISTOR MEANS HAVING FIRST ELECTRODE MEANS EXTENDING IN A PLANE WHICH IS PARALLEL TO THE PLANE OF MOTION OF SAID MOVABLE BLADE; SAID FIRST ELECTRODE MEANS BEING ELECTRICALLY CONNECTED TO SAID RESPECTIVE ENDS OF SAID MOVABLE BLADE WHEN SAID RESPECTIVE ENDS OF SAID MOVABLE BLAE ENGAGE SAID FIRST AND SECOND STATIONARY CONTACTS; SAID FIRST ELECTRODE MEANS DISENGAGING SAID RESPECTIVE ENDS OF SAID MOVABLE BLADE AFTER SAID MOVABLE BLADE IS ROTATED BY A
References Cited (Backward Citations)
US1563833A
Cited
GB807551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |