US3223801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent magnetic reed switch
Assignee: Individual
•
Filing: 1964-09-21
•
Granted: 1965-12-14
•
Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Douglas J Cummins
- 👤 Peter T Davy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:59
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0006; H01H36/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A CIRCUIT CONTROLLER COMPRISING A PLURALITY OF SEALED SWITHES EACH HAVING CONTACTS OF FERROMAGNETIC MATERIAL, MEANS SUPPORTING SAID PLURALITY OF SWITCHES IN SPACED APART REALATIONSHIP, A PLURALITY OF PERMANENT MAGNETS DISPOSED IN SAID SUPPORTING MEANS, WHEREBY A SELECTED NUMBER OF SAID SEALED SWITCHES ARE MAGNETICALLY RESPONSIVE TO ONE MAGNET ONLY, EACH MAGNET BEING SLIDALY DISPOSED IN AN INDIVIDUAL PLANE WITH MEANS BIASING EACH OF SAID MAGNETS TO ALTER ITS MAGNETIC EFFECT ON SAID SELECTED NUMBER OF SEALED SWITCHES, A PLURALITY OF GUIDE MEANS IN SAID SUPPORT MEANS, MANUALLY OPERABLE MEANS MOVABLE IN SAID PLURALITY OF GUIDE MEANS AND A PLURALITY OF DETENT MEANS ON SAID MANUALLY OPERABLE MEANS ALIGNED IN THE PLANES OF MOVEMENT OF SAID MAGNETS, THE MOVEMENT OF SAID MANUALLY OPERABLE MEANS IN ONE OF SAID GUIDE MEANS BEING EFFECTIVE TO MOVE ONE OF SAID DETENT MEANS AGAINST A RESPECTIVE ONE OF SAID MAGNETS LEAVING THE OTHERS UNAFFECTED.
Claim 2
Dependent Claim
150 words
A CIRCUIT CONTROLLER COMPRISING A PLURALITY OF SEALED SWITHES EACH HAVING CONTACTS OF FERROMAGNETIC MATERIAL, MEANS SUPPORTING SAID PLURALITY OF SWITCHES IN SPACED APART REALATIONSHIP, A PLURALITY OF PERMANENT MAGNETS DISPOSED IN SAID SUPPORTING MEANS, WHEREBY A SELECTED NUMBER OF SAID SEALED SWITCHES ARE MAGNETICALLY RESPONSIVE TO ONE MAGNET ONLY, EACH MAGNET BEING SLIDALY DISPOSED IN AN INDIVIDUAL PLANE WITH MEANS BIASING EACH OF SAID MAGNETS TO ALTER ITS MAGNETIC EFFECT ON SAID SELECTED NUMBER OF SEALED SWITCHES, A PLURALITY OF GUIDE MEANS IN SAID SUPPORT MEANS, MANUALLY OPERABLE MEANS MOVABLE IN SAID PLURALITY OF GUIDE MEANS AND A PLURALITY OF DETENT MEANS ON SAID MANUALLY OPERABLE MEANS ALIGNED IN THE PLANES OF MOVEMENT OF SAID MAGNETS, THE MOVEMENT OF SAID MANUALLY OPERABLE MEANS IN ONE OF SAID GUIDE MEANS BEING EFFECTIVE TO MOVE ONE OF SAID DETENT MEANS AGAINST A RESPECTIVE ONE OF SAID MAGNETS LEAVING THE OTHERS UNAFFECTED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |