US3111607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnet assembly
Assignee: Individual
•
Filing: 1960-02-29
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Granted: 1963-11-19
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Expires: 1980-02-29
Abstract
No abstract record available.
Inventors
- 👤 Storch Edward August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:48
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/15; B23Q3/154; B23Q3/1543
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A COMBINED PERMANENT MAGNET AND ELECTROMAGNET ASSEMBLY FOR CLAMPING A THIN SHEET METAL PANEL COMPRISING A CASING OF NONMAGNETIC MATERIAL HAVING AN OPENING THEREIN, A RECTANGULAR PERMANENT MAGNET OF CERAMIC MATERIAL POSITIONED WITHIN SAID CASING, A PAIR OF RECTANGULAR POLE PIECES EACH HAVING A PLANAR FACE ADJACENT ONE END THEREOF IN CONTACT WITH A POLE OF SAID MAGNET AND POSITIONED ADJACENT SAID OPENING IN SAID CASING, A COIL WOUND AROUND THE OTHER END OF EACH SAID POLE PIECE WHICH EXTENDS BEYOND THE CONFINES OF SAID MAGNET WITHIN SAID CASING, AND MEANS FOR HOLDING SAID MAGNET AND POLE PIECES IN POSITION WITHIN SAID CASING, THE SAID ONE ENDS OF SAID POLE PIECES WHICH ARE ADJACENT SAID OPENING PROJECTING OUTWARDLY WITH RESPECT TO THE CASING SUFFICIENTLY TO PERMIT CONTACT OF THE SAID ONE ENDS OF SAID POLE PIECES WITH A WORKPIECE WHICH IS TO BE GRIPPED BY SAID MAGNET ASSEMBLY.
Claim 2
Dependent Claim
148 words
A COMBINED PERMANENT MAGNET AND ELECTROMAGNET ASSEMBLY FOR CLAMPING A THIN SHEET METAL PANEL COMPRISING A CASING OF NONMAGNETIC MATERIAL HAVING AN OPENING THEREIN, A RECTANGULAR PERMANENT MAGNET OF CERAMIC MATERIAL POSITIONED WITHIN SAID CASING, A PAIR OF RECTANGULAR POLE PIECES EACH HAVING A PLANAR FACE ADJACENT ONE END THEREOF IN CONTACT WITH A POLE OF SAID MAGNET AND POSITIONED ADJACENT SAID OPENING IN SAID CASING, A COIL WOUND AROUND THE OTHER END OF EACH SAID POLE PIECE WHICH EXTENDS BEYOND THE CONFINES OF SAID MAGNET WITHIN SAID CASING, AND MEANS FOR HOLDING SAID MAGNET AND POLE PIECES IN POSITION WITHIN SAID CASING, THE SAID ONE ENDS OF SAID POLE PIECES WHICH ARE ADJACENT SAID OPENING PROJECTING OUTWARDLY WITH RESPECT TO THE CASING SUFFICIENTLY TO PERMIT CONTACT OF THE SAID ONE ENDS OF SAID POLE PIECES WITH A WORKPIECE WHICH IS TO BE GRIPPED BY SAID MAGNET ASSEMBLY.
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) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |