US3261944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic switch
Assignee: Individual
•
Filing: 1965-04-12
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Granted: 1966-07-19
•
Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 John F Sherwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:42
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/22; H01H36/00; H01H36/0073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A MAGNETIC SWITCH FOR ELECTRICAL CIRCUITS COMPRISING (A) A HOUSING MADE OF INSULATING MATERIALS, (B) A PAIR OF STATIONARY CONTACT MEMBERS MOUNTED IN THE HOUSING, (C) A CONNECTOR IN CONTACT WITH EACH STATIONARY CONTACT MEMBER CONNECTING THE CONTACTS IN CIRCUIT, (D) A PERMANENTLY MAGNETIC FREELY MOVABLE CONTACTTOR ENGAGING SAID STATIONARY CONTACTS, SAID MOVABLE CONTACTOR HAVING OPPOSITE SIDES SURFACES ONE OF WHICH IS AN ELECTRICAL CONDUCTOR AND THE OTHER OF WHICH IS NON-CONDUCTIVE, (E) A MAGNETIC CONTROL MEMBER LOCATED OUTSIDE OF THE HOUSING, AND (F) MEANS FOR REVERSING THE POLARITY OF THE CONTROL MEMBER TO REPEL THE MOVABLE CONTRACTOR IN THE HOUSING AND CAUSE THE CONTACTOR TO TURN OVER FROM ONE SIDE OF THE OTHER TO ALTERNATELY OPEN OR CLOSE THE ELECTRICAL CIRCUIT.
Claim 2
Dependent Claim
122 words
A MAGNETIC SWITCH FOR ELECTRICAL CIRCUITS COMPRISING (A) A HOUSING MADE OF INSULATING MATERIALS, (B) A PAIR OF STATIONARY CONTACT MEMBERS MOUNTED IN THE HOUSING, (C) A CONNECTOR IN CONTACT WITH EACH STATIONARY CONTACT MEMBER CONNECTING THE CONTACTS IN CIRCUIT, (D) A PERMANENTLY MAGNETIC FREELY MOVABLE CONTACTTOR ENGAGING SAID STATIONARY CONTACTS, SAID MOVABLE CONTACTOR HAVING OPPOSITE SIDES SURFACES ONE OF WHICH IS AN ELECTRICAL CONDUCTOR AND THE OTHER OF WHICH IS NON-CONDUCTIVE, (E) A MAGNETIC CONTROL MEMBER LOCATED OUTSIDE OF THE HOUSING, AND (F) MEANS FOR REVERSING THE POLARITY OF THE CONTROL MEMBER TO REPEL THE MOVABLE CONTRACTOR IN THE HOUSING AND CAUSE THE CONTACTOR TO TURN OVER FROM ONE SIDE OF THE OTHER TO ALTERNATELY OPEN OR CLOSE THE ELECTRICAL CIRCUIT.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |