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1. (WO1997017698) LOW INERTIA FLUX MOTOR ROTARY ACTUATOR
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/017698 International Application No.: PCT/US1996/016946
Publication Date: 15.05.1997 International Filing Date: 23.10.1996
Chapter 2 Demand Filed: 02.06.1997
IPC:
G11B 5/55 (2006.01)
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48
Disposition or mounting of heads relative to record carriers
54
with provision for moving the head into, or out of, its operative position or across tracks
55
Track change, selection, or acquisition by displacement of the head
Applicants:
IOMEGA CORPORATION [US/US]; 1821 West 4000 South Roy, UT 84067, US
Inventors:
WILLIAMS, Donald, Paul; US
Agent:
KURTZ, Richard, E.; Woodcock Washburn Kurtz Mackiewicz & Norris 46th floor One Liberty Place Philadelphia, PA 19103, US
Priority Data:
08/556,10409.11.1995US
Title (EN) LOW INERTIA FLUX MOTOR ROTARY ACTUATOR
(FR) ACTIONNEUR ROTATIF POUR MOTEUR A FLUX DE FAIBLE INERTIE
Abstract:
(EN) A rotary actuator which carries magnetic read/write heads (14) into engagement with a magnetic recording medium has a rotor which includes an arm (16), a pivot assembly (18) and return path members (30, 32) extending from the pivot assembly (18). The stator includes a permanent magnet (26), a magnetic member (28) and magnetic coils (22, 24) on the magnetic member (28). When the magnetic coils (22, 24) are energized, flux flowing through the magnetic member (28) and the return path members (30, 32) aids or detracts from the magnetic flux generated by the permanent magnet (26).
(FR) L'invention concerne un actionneur rotatif qui met les têtes de lecture/écriture magnétiques (14) en contact avec un support d'enregistrement magnétique. L'actionneur présente un rotor qui comprend un bras (16), un ensemble pivot (18) et des éléments de trajet de retour (30, 32) qui s'étendent à partir de l'ensemble pivot (18). Le stator comporte un aimant permanent (26), un élément magnétique (28) et, sur cet élément (28), des bobines magnétiques (22, 24). Lorsque les bobines magnétiques (22, 24) sont alimentées, le flux qui traverse l'élément magnétique (28) et les éléments de trajet de retour (30, 32) renforcent ou diminuent le flux magnétique engendré par l'aimant permanent (26).
Designated States: CA, JP, SG
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
SG51858EP0860006JP2000500263 CA2237216