US3369205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic actuator for switches, valves and the like
Assignee: DONALD J HAMRICK
•
Filing: 1966-04-13
•
Granted: 1968-02-13
•
Expires: 1986-04-13
Abstract
No abstract record available.
Inventors
- 👤 Donald J Hamrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:19
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN A MAGNETIC DEVICE FOR A PRODUCING MOTION, A MASTER MAGNET STRUCTURE HAVING A PASSAGE THERETHROUGH, A SLAVE MAGNET ARRANGED IN ADJACENT RELATION TO ONE END OF SAID PASSAGE, AND REPELLED BY MASTER MAGNET STRUCTURE, SAID MASTER MAGNET STRUCTURE AND SLAVE MAGNET BEING MOUNTED FOR MOTION RELATIVE TO ONE ANOTHER, AND FERROMAGNETIC MEANS MOUNTED FOR MOTION THROUGH SAID PASSAGE IN SAID MASTER MAGNET STRUCTURE TO CAUSE THE SLAVE MAGNET TO BE MAGNETICALLY ATTRACTED IN THE DIRECTION OF THE MASTER MAGNET STRUCTURE.
Claim 2
Dependent Claim
81 words
IN A MAGNETIC DEVICE FOR A PRODUCING MOTION, A MASTER MAGNET STRUCTURE HAVING A PASSAGE THERETHROUGH, A SLAVE MAGNET ARRANGED IN ADJACENT RELATION TO ONE END OF SAID PASSAGE, AND REPELLED BY MASTER MAGNET STRUCTURE, SAID MASTER MAGNET STRUCTURE AND SLAVE MAGNET BEING MOUNTED FOR MOTION RELATIVE TO ONE ANOTHER, AND FERROMAGNETIC MEANS MOUNTED FOR MOTION THROUGH SAID PASSAGE IN SAID MASTER MAGNET STRUCTURE TO CAUSE THE SLAVE MAGNET TO BE MAGNETICALLY ATTRACTED IN THE DIRECTION OF THE MASTER MAGNET STRUCTURE.
References Cited (Backward Citations)
GB809090A
Cited
US3055999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |