Title:
【発明の名称】自動遮断器用永久磁石解除ソレノイド
Document Type and Number:
Japanese Patent JP3364217
Kind Code:
B2
Abstract:
PCT No. PCT/EP91/01424 Sec. 371 Date Mar. 30, 1993 Sec. 102(e) Date Mar. 30, 1993 PCT Filed Jul. 29, 1991 PCT Pub. No. WO92/02944 PCT Pub. Date Feb. 20, 1992.The solenoid (1) is of the type having a magnetic circuit (2, 3, 13) on which a permanent magnet (6) and an electric winding (7) would induce respective magnetic fields; the magnetic circuit has a stationary portion including a squared annular shroud (2) divided theta-like by a partition (3) which encloses, between itself and the shroud (2), the permanent magnet (6), on the one side, and the electric winding (7), on the other side, and a moving portion including a plunger (13) slidable axially within the winding (7) and being guided through an opening (12) in the shroud (2). The plunger (13) is movable between a retracted position and an extended position dependent on the magnetic field induced by the winding (7). The partition (3) comprises a flat plate on which the plunger (13) bears directly in its retracted position.
Inventors:
Rossetti Jean Paolo
Contaldi August
Contaldi August
Application Number:
JP51298691A
Publication Date:
January 08, 2003
Filing Date:
July 29, 1991
Export Citation:
Assignee:
Buticino Sochieta Per Azioni
International Classes:
H01H71/32; H01H73/36; H01F7/16; (IPC1-7): H01H73/36; H01F7/16
Domestic Patent References:
| JP57163939A | ||||
| JP61128436A | ||||
| JP6332434U | ||||
| JP6454306U | ||||
| JP452965Y2 |
Attorney, Agent or Firm:
Shoichi Ui (3 others)