Patent US3197312A successfully refreshed from Google Patents.
Patent US3174786A successfully refreshed from Google Patents.
US3174786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic catch assembly
Assignee: Individual
•
Filing: 1963-05-01
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Granted: 1965-03-23
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Expires: 1983-05-01
Abstract
No abstract record available.
Inventors
- 👤 Harry C Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:48
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/16; Y; Y10; Y10T; Y10T292/00; Y10T292/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A MAGNETIC CATCH DEVICE THE POLE PIECES OF WHICH ARE AUTOMATICALLY SELF-ALIGNING WITH THE POLE PIECE ARMATURE, SAID DEVICE HAVING A MAIN BODY, A PAIR OF POLE PIECE PLATES HAVING WAFER OF PERMANENT MAGNETIC MATERIAL LOOSELY SANDWICHED THEREBETWEEN, MEANS FOR HOLDING SAID MAGNETIC WAFER AGAINST SUBSTANTIAL MOVEMENT RELATIVE TO SAID MAIN BODY, MEANS INTERCONNECTING SAID POLE PIECES AND ADAPTING THE SAME TO ROTATE IN UNISON THROUGH LIMITED ARCS IN THE PLANE THEREOF AND TO CAUSE THE SAME TO SHIFT BODILY IN EQUAL BUT OPPOSITE DIRECTIONS PARALLEL TO ONE ANOTHER, AND AN ARMATURE FOR SAID POLE PIECES ADAPTED TO BE MOUNTED ON AND OBJECT MOVABLE TOWARD AND AWAY FROM SAID CATCH DEVICE.
Claim 2
Dependent Claim
111 words
A MAGNETIC CATCH DEVICE THE POLE PIECES OF WHICH ARE AUTOMATICALLY SELF-ALIGNING WITH THE POLE PIECE ARMATURE, SAID DEVICE HAVING A MAIN BODY, A PAIR OF POLE PIECE PLATES HAVING WAFER OF PERMANENT MAGNETIC MATERIAL LOOSELY SANDWICHED THEREBETWEEN, MEANS FOR HOLDING SAID MAGNETIC WAFER AGAINST SUBSTANTIAL MOVEMENT RELATIVE TO SAID MAIN BODY, MEANS INTERCONNECTING SAID POLE PIECES AND ADAPTING THE SAME TO ROTATE IN UNISON THROUGH LIMITED ARCS IN THE PLANE THEREOF AND TO CAUSE THE SAME TO SHIFT BODILY IN EQUAL BUT OPPOSITE DIRECTIONS PARALLEL TO ONE ANOTHER, AND AN ARMATURE FOR SAID POLE PIECES ADAPTED TO BE MOUNTED ON AND OBJECT MOVABLE TOWARD AND AWAY FROM SAID CATCH DEVICE.
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |