US3095490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupters
Assignee: Westinghouse Electric Corp
•
Filing: 1960-02-26
•
Granted: 1963-06-25
•
Expires: 1980-02-26
Abstract
No abstract record available.
Inventors
- 👤 Charles F Cromer
- 👤 Sandin Jerome
- 👤 Mellon National Bank A Company
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:02
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/14; H01; H01H; H01H33/00; H01H33/70; H01H33/7015; H01H33/7023; H01H33/88; H01H33/90; H01H33/91; H02B11/00; H02B11/12; H02B11/167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A CIRCUIT INTERRUPTER OF THE FLUID-BLAST TYPE INCLUDING A RELATIVELY STATIONARY CONTACT AND A COOPERABLE MOVABLE CONTACT SEPARABLE TO ESTABLISH AN ARC, A PUFFER MECHANISM INCLUDING A RELATIVELY STATIONARY CONDUCTING PUFFER OPERATING CYLINDER AND A MOVABLE PISTON MOVABLE THEREIN, THE RELATIVELY STATIONARY PUFFER OPERATING CYLINDER SUPPORTING SAID RELATIVELY STATIONARY CONTACT ADJACENT ONE END THEREOF, SAID CONDUCTING PUFFER OPERATING CYLINDER HAVING ONE OR MORE OPENINGS THEREIN, OPERATING MEANS FOR ACTUATING SAID MOVABLE CONTACT TO THE OPEN-CIRCUIT POSITION, ONE OR MORE PISTON RODS PASSING THROUGH SAID ONE OR MORE OPENINGS CONNECTED TO THE MOVABLE PISTON AT ONE END AND TO THE OPERATING MEANS AT THE OTHER END, AND THE ONE OR MORE PISTON RODS AND THE PISTON MOVING IN THE OPENING DIRECTION OF THE MOVABLE CONTACT DURING THE OPENING OPERATION OF THE CIRCUIT INTERRUPTER TO EFFECT THEREBY A BLAST OF FLUID OUT OF THE RELATIVELY STATIONARY PUFFER OPERATING CYLINDER TOWARD SAID ARC TO EFFECT THE EXTINCTION THEREOF.
Claim 2
Dependent Claim
155 words
A CIRCUIT INTERRUPTER OF THE FLUID-BLAST TYPE INCLUDING A RELATIVELY STATIONARY CONTACT AND A COOPERABLE MOVABLE CONTACT SEPARABLE TO ESTABLISH AN ARC, A PUFFER MECHANISM INCLUDING A RELATIVELY STATIONARY CONDUCTING PUFFER OPERATING CYLINDER AND A MOVABLE PISTON MOVABLE THEREIN, THE RELATIVELY STATIONARY PUFFER OPERATING CYLINDER SUPPORTING SAID RELATIVELY STATIONARY CONTACT ADJACENT ONE END THEREOF, SAID CONDUCTING PUFFER OPERATING CYLINDER HAVING ONE OR MORE OPENINGS THEREIN, OPERATING MEANS FOR ACTUATING SAID MOVABLE CONTACT TO THE OPEN-CIRCUIT POSITION, ONE OR MORE PISTON RODS PASSING THROUGH SAID ONE OR MORE OPENINGS CONNECTED TO THE MOVABLE PISTON AT ONE END AND TO THE OPERATING MEANS AT THE OTHER END, AND THE ONE OR MORE PISTON RODS AND THE PISTON MOVING IN THE OPENING DIRECTION OF THE MOVABLE CONTACT DURING THE OPENING OPERATION OF THE CIRCUIT INTERRUPTER TO EFFECT THEREBY A BLAST OF FLUID OUT OF THE RELATIVELY STATIONARY PUFFER OPERATING CYLINDER TOWARD SAID ARC TO EFFECT THE EXTINCTION THEREOF.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |