Patent US3268840A successfully refreshed from Google Patents.
US3268840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic switch contact assembly
Assignee: International Standard Electric Corp
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Filing: 1963-07-12
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Granted: 1966-08-23
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Expires: 1983-07-12
Abstract
No abstract record available.
Inventors
- 👤 Hjertstrand Svante Lennart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:33
CPC Classifications
H; H01; H01H; H01H67/00; H01H67/22; H01H67/26; H01H36/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A CONTACT ASSEMBLY COMPRISING FIRST AND SECOND CONTACT STRIPS LYING A SELECTED DISTANCE APART IN SEPARATE PARALLEL PLANES WITH THE CONTACT STRIP IN ONE PLANE POSITIONED NORMAL TO THE CONTACT STRIP IN THE OTHER SAID PLANE, CONTACT MEANS POSITIONED BETWEEN THE CONTACT STRIPS OF SAID PLANES AT THE CROSSOVER POINT OF THE FIRST AND SECOND CONTACT STRIPS SAID CONTACT MEANS BEING MADE A CONDUCTIVE MATERIAL AND FORMED TO HAVE A LENGTH INSUFFICIENT IN A NORMAL POSITION TO BRIDGE THE SELECTED DISTANCE BETWEEN THE FIRST AND SECOND CONTACT STRIPS, A SELECTIVELY ENERGIZABLE OPERATING CONDUCTOR EXTENDING LONGITUDINALLY OF EACH OF SAID CONTACT STRIPS FOR GENERATING A MAGNETIC FIELD THEREALONG, THE SIMULTANEOUS GENERATION OF A MAGNETIC FIELD IN BOTH OF SAID OPERATING CONDUCTORS IMPARTING ROTATIONAL MOVEMENT TO SAID CONTACT MEANS TO TURN IT FROM ITS NORMAL POSITION TO ENABLE IT TO BRIDGE THE SELECTED DISTANCE AND TO ESTABLISH ELECTRICAL CONTACT BETWEEN THE CONTACT STRIPS AT THE SAID CROSSOVER POINT.
Claim 2
Dependent Claim
156 words
A CONTACT ASSEMBLY COMPRISING FIRST AND SECOND CONTACT STRIPS LYING A SELECTED DISTANCE APART IN SEPARATE PARALLEL PLANES WITH THE CONTACT STRIP IN ONE PLANE POSITIONED NORMAL TO THE CONTACT STRIP IN THE OTHER SAID PLANE, CONTACT MEANS POSITIONED BETWEEN THE CONTACT STRIPS OF SAID PLANES AT THE CROSSOVER POINT OF THE FIRST AND SECOND CONTACT STRIPS SAID CONTACT MEANS BEING MADE A CONDUCTIVE MATERIAL AND FORMED TO HAVE A LENGTH INSUFFICIENT IN A NORMAL POSITION TO BRIDGE THE SELECTED DISTANCE BETWEEN THE FIRST AND SECOND CONTACT STRIPS, A SELECTIVELY ENERGIZABLE OPERATING CONDUCTOR EXTENDING LONGITUDINALLY OF EACH OF SAID CONTACT STRIPS FOR GENERATING A MAGNETIC FIELD THEREALONG, THE SIMULTANEOUS GENERATION OF A MAGNETIC FIELD IN BOTH OF SAID OPERATING CONDUCTORS IMPARTING ROTATIONAL MOVEMENT TO SAID CONTACT MEANS TO TURN IT FROM ITS NORMAL POSITION TO ENABLE IT TO BRIDGE THE SELECTED DISTANCE AND TO ESTABLISH ELECTRICAL CONTACT BETWEEN THE CONTACT STRIPS AT THE SAID CROSSOVER POINT.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |