US4977707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for external magnetic abrasive machining of cylindrical components
Assignee: Belarusian National Technical University
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Filing: 1989-01-05
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Granted: 1990-12-18
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Expires: 2009-01-05
Abstract
Abstract The essence of the device resides in the fact that an electromagnetic system is provided with an additional pair (3) of pole pieces (5) mounted opposite a first pair (2) and displaced into respect to the latter, lengthwise a longitudinal axis (01-01) of a component (15) to be machined, for a distance L=(0.2 to 1.0)D, where D is the diameter of the pole pieces, said pole pieces (4;5) in each of the pairs (2,3) being kinematically associated with each other, set on a common axis of rotation (0-0) and featuring an oppositely directed eccentricity (e) with respect to that axis.
Inventors
- 👤 Viktor N. Chachin
- 👤 Nikolai S. Khomich
- 👤 Lel K. Druzhinin
- 👤 Igor A. Shlepov
- 👤 Rostislav O. Dulgier
- 👤 Boris A. Steblovsky
- 👤 Viktor P. Budnik
- 👤 Nikolai P. Morozov
- 👤 Vitaly V. Babuk
- 👤 Alexandr P. Tarun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:20
CPC Classifications
B; B24; B24B; B24B1/00; B24B1/005; B21; B21B; B21B45/00; B21B45/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A device for external magnetic abrasive machining of cylindrical components comprising an electromagnetic system incorporating a pair (2) of pole pieces (4) mounted opposite each other so as to form an annular working zone (9), and a mechanism (16) for feeding the component longitudinally into the working zone CHARACTERIZED in that the electromagnetic system is provided with an additional pair (3) of pole pieces (5) mounted opposite the first pair (2) and displaced with respect to the latter, lengthwise a longitudinal axis (O 1 --O 1 ) of a component (15) to be machined, for a distance L=(0.2 to 1.0)D, where D is the diameter of the pole pieces (4,5), said pole pieces (4,5) in each of the pairs (2,3) being kinematically associated with each other, set on a common axis of rotation (O--O) and featuring an oppositely directed eccentricity (e) with respect to that axis.
Claim 2
Independent Claim
146 words
A device for external magnetic abrasive machining of cylindrical components comprising an electromagnetic system incorporating a pair (2) of pole pieces (4) mounted opposite each other so as to form an annular working zone (9), and a mechanism (16) for feeding the component longitudinally into the working zone CHARACTERIZED in that the electromagnetic system is provided with an additional pair (3) of pole pieces (5) mounted opposite the first pair (2) and displaced with respect to the latter, lengthwise a longitudinal axis (O 1 --O 1 ) of a component (15) to be machined, for a distance L=(0.2 to 1.0)D, where D is the diameter of the pole pieces (4,5), said pole pieces (4,5) in each of the pairs (2,3) being kinematically associated with each other, set on a common axis of rotation (O--O) and featuring an oppositely directed eccentricity (e) with respect to that axis.
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) | 1993-12-17 | 1994-06-18 | 1994-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-17 | 1998-06-18 | 1998-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-17 | 2002-06-18 | 2002-12-18 | $7700.00 | Window Closed / Lapsed |