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公开(公告)号：JPS63111071A
公开(公告)日：1988-05-16
申请号：JP16254287
申请日：1987-07-01
Applicant: IBM
Inventor： HELINSKI EDWARD FRANK , ZABLE JACK LOUIS
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公开(公告)号：AU552916B2
公开(公告)日：1986-06-26
申请号：AU1539483
申请日：1983-06-06
Applicant: IBM
Inventor： HELINSKI EDWARD FRANK
Abstract: A linear solenoid device comprises a cylindrical armature or plunger (13) freely movable within the central opening of a stator (11) which comprises a cylindrical coil (27) wound between a pair of annular end pole members (14, 15) and surrounding one or more intermediate annular pole members (16, 17). The intermediate pole members are axially spaced and aligned with the end pole members by a bobbin (19) which preferably is injection molded. The armature has plural axially spaced and aligned annular pole members (30, 31, 32) concentrically arranged within the central opening of the single cylindrical coil. The magnetic stator and armature poles take the form of rings which are dimensioned and arranged so that the magnetic flux generated by the coil passes in a series path alternately from the stator to the armature rings and then through a cylindrical magnetic casing (18) which forms a magnetic flux path between the end pole members (14, 15). The armature includes a support body (33) of non-magnetizable material which may be plastic and can be injection molded. The support body has annular bearing surfaces (35, 36, 37) formed between the armature rings (30, 31, 32) for maintaining annular air gaps (38,39,40) between stator pole member and armature rings and for positioning the armature within the central opening.
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公开(公告)号：DE2963079D1
公开(公告)日：1982-07-29
申请号：DE2963079
申请日：1979-10-29
Applicant: IBM
Inventor： HELINSKI EDWARD FRANK
Abstract: Magnetic actuator arrangement in which the actuator or armature is retained in a cocked position by unidirectional magnetic flux having a density that cyclically varies in magnitude with time and is released by selective energization of a bucking coil to counteract the retention flux when the flux density is less than maximum. The modulated retaining flux may be made sufficient at its maximum density to retract the released actuator to the cocked position.
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公开(公告)号：DE68910292D1
公开(公告)日：1993-12-02
申请号：DE68910292
申请日：1989-11-25
Applicant: IBM
Inventor： HELINSKI EDWARD FRANK
Abstract: The disclosure describes a passive lubrication system for use in a high speed print hammer mechanism (10) to provide continuous lubrication to all print hammer elements (12). Channels (22, 23) are formed along the length of a pivot pin (17) and filled with a porous material (24, 25) having a finer porosity than the sintered print hammer block (21) serving as the principal reservoir. Fins (11, 13, 14) located at each side of print hammer elements (12) also are of the same porosity as the print hammer block and communicate lubricant to the material (24, 25) in the pivot pin channels (22, 23). From the channels, lubricant is conveyed to the interface between each print hammer element (12) and the pivot pin by capillary action.
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公开(公告)号：AU527711B2
公开(公告)日：1983-03-17
申请号：AU5353779
申请日：1979-12-06
Applicant: IBM
Inventor： HELINSKI EDWARD FRANK
IPC: H02K33/00 , B41J9/24 , B41J9/36 , H01F7/04 , H01F7/08 , H01F7/123 , H01H36/00 , H01H71/32 , H01F7/18
Abstract: Magnetic actuator arrangement in which the actuator or armature is retained in a cocked position by unidirectional magnetic flux having a density that cyclically varies in magnitude with time and is released by selective energization of a bucking coil to counteract the retention flux when the flux density is less than maximum. The modulated retaining flux may be made sufficient at its maximum density to retract the released actuator to the cocked position.
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Patent Agency Ranking
公开(公告)号：CH595994A5
公开(公告)日：1978-02-28
申请号：CH1509975
申请日：1975-11-21
Applicant: IBM
Inventor： HELINSKI EDWARD FRANK , LEE HO CHONG , ZABLE JACK LOUIS
Abstract: A continuous jet stream of a ferrofluid ink is broken into individual drops by an asymmetrical perturbation force applied to the stream. The ink, as it exits from an orifice under pressure, is excited by an electromagnetic transducer energized with an asymmetrical excitation signal having a fundamental and higher harmonics. An asymmetrical excitation signal, such as a sawtooth, having a substantial second and/or third harmonics content which produce an excitation signal with different rise and fall times can form a stream of drops free of satellites. Asymmetry of magnetic field forces can be produced with single stage or multi-stage transducers located at spaced positions along the stream. Asymmetry can also be produced using an electromagnetic transducer having a non-uniform gap.
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公开(公告)号：DE3775884D1
公开(公告)日：1992-02-20
申请号：DE3775884
申请日：1987-10-16
Applicant: IBM
Inventor： ANDERSON LAWRENCE LEE , HELINSKI EDWARD FRANK , MEIER JOHANN HANS , ZABLE JACK LOUIS
Abstract: A platen assembly for an impact printer comprises the combination of an impact transducer (28) between the backup plate (23) and the type band (11) of a printer and an impact isolator (29) interposed between the transducer and the type band. The transducer comprises a strip of force sensitive material. The strip extends over a plurality of print positions. Electrode means in contact with the surfaces of the force sensitive material form discrete impact zones aligned with the print hammers. One of the electrode means is a continuous conductive strip on one side of the force sensitive strip. Plural conductive pads on the other side of the strip form the discrete impact zones. The transducer element can be a foil using PVF2 with etched conductive patterns forming the electrodes.
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公开(公告)号：DE3562336D1
公开(公告)日：1988-06-01
申请号：DE3562336
申请日：1985-05-29
Applicant: IBM
Inventor： HELINSKI EDWARD FRANK , LEE HO CHONG
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公开(公告)号：IT1165400B
公开(公告)日：1987-04-22
申请号：IT2823879
申请日：1979-12-20
Applicant: IBM
Inventor： HELINSKI EDWARD FRANK
IPC: B41J9/24 , H02K33/00 , B41J9/36 , H01F7/04 , H01F7/08 , H01F7/123 , H01H36/00 , H01H71/32 , B41J
Abstract: Magnetic actuator arrangement in which the actuator or armature is retained in a cocked position by unidirectional magnetic flux having a density that cyclically varies in magnitude with time and is released by selective energization of a bucking coil to counteract the retention flux when the flux density is less than maximum. The modulated retaining flux may be made sufficient at its maximum density to retract the released actuator to the cocked position.
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公开(公告)号：DE3368479D1
公开(公告)日：1987-01-29
申请号：DE3368479
申请日：1983-06-29
Applicant: IBM
Inventor： HELINSKI EDWARD FRANK
Abstract: A linear solenoid device comprises a cylindrical armature or plunger (13) freely movable within the central opening of a stator (11) which comprises a cylindrical coil (27) wound between a pair of annular end pole members (14, 15) and surrounding one or more intermediate annular pole members (16, 17). The intermediate pole members are axially spaced and aligned with the end pole members by a bobbin (19) which preferably is injection molded. The armature has plural axially spaced and aligned annular pole members (30, 31, 32) concentrically arranged within the central opening of the single cylindrical coil. The magnetic stator and armature poles take the form of rings which are dimensioned and arranged so that the magnetic flux generated by the coil passes in a series path alternately from the stator to the armature rings and then through a cylindrical magnetic casing (18) which forms a magnetic flux path between the end pole members (14, 15). The armature includes a support body (33) of non-magnetizable material which may be plastic and can be injection molded. The support body has annular bearing surfaces (35, 36, 37) formed between the armature rings (30, 31, 32) for maintaining annular air gaps (38,39,40) between stator pole member and armature rings and for positioning the armature within the central opening.
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