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公开(公告)号：DE69109925D1
公开(公告)日：1995-06-29
申请号：DE69109925
申请日：1991-03-06
Applicant: IBM
Inventor： WATROUS ROBERT BRINGHURST
Abstract: An actuator comprises a slotted stator which is mounted in a stator frame. The stator is connected to the frame by attachment means which allows the stator to move rotationally, axially and laterally relative to the frame without distorting the dimensions of the stator. The stator has an air bearing outer surface which receives a slider. A head arm assembly is attached to the slider such that the head arm assembly may be completely positioned within the stator slot when the slider is fully retracted.
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公开(公告)号：DE3265091D1
公开(公告)日：1985-09-05
申请号：DE3265091
申请日：1982-09-28
Applicant: IBM
Inventor： WATROUS ROBERT BRINGHURST
IPC: G11B5/54 , G11B5/60 , G11B21/02 , H02K41/035
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公开(公告)号：DE2851517A1
公开(公告)日：1979-06-28
申请号：DE2851517
申请日：1978-11-29
Applicant: IBM
Inventor： WATROUS ROBERT BRINGHURST
Abstract: In a disk file, a mechanism places the magnetic transducer into and out of a transducing position by using the air flow generated in the file by the rotating disk. The magnetic head is biased out of contact with the magnetic disk media. As the disk media starts rotating and building up an air flow within the file, a nozzle directs this air against the slider to urge it towards the media. At running speed, the head is positioned at a flying height by negative air pressure generated by the slider flying over the media. The air flow nozzle can be a funnel shape formed in the arm assembly used to position the sliders over a track in the disk media or a knife edge assembly can be used to gather and direct the air flow towards the suspension and slider.
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Patent Agency Ranking
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公开(公告)号：AU7298991A
公开(公告)日：1991-10-24
申请号：AU7298991
申请日：1991-03-18
Applicant: IBM
Inventor： WATROUS ROBERT BRINGHURST
Abstract: An actuator comprises a slotted stator which is mounted in a stator frame. The stator is connected to the frame by attachment means which allows the stator to move rotationally, axially and laterally relative to the frame without distorting the dimensions of the stator. The stator has an air bearing outer surface which receives a slider. A head arm assembly is attached to the slider such that the head arm assembly may be completely positioned within the stator slot when the slider is fully retracted.
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公开(公告)号：DE3669190D1
公开(公告)日：1990-04-05
申请号：DE3669190
申请日：1986-05-22
Applicant: IBM
Inventor： CRAWFORD ROY PATRICK , WATROUS ROBERT BRINGHURST
Abstract: A pump includes a pair of electrically conductive bellows (10,12) rigidly secured to end plates (26,28) of the pump housing (30) at the perimeter of their accordion-like ring structures. The bellows are interconnected by a shaft (40) at their centres so that they can flex in phase. An electrical coil means (18,20) is attached to the interconnected bellows and is axially movable with the bellows. The coil means is surrounded by a permanent magnet structure (22,24) secured to the pump housing. Each bellows forms a fluid chamber with its associated end plate, the end plate having a valve structure (76,78) for the inlet and outlet of fluid. The coil means is electrically connected to an alternating current power supply, the connection being made through the electrically conductive bellows. The bellows flex in phase in the presence of the alternating current to the coils and thus alternately pull fluid in and force fluid out of the respective fluid chambers.
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公开(公告)号：DE3063740D1
公开(公告)日：1983-07-21
申请号：DE3063740
申请日：1980-04-10
Applicant: IBM
Inventor： WATROUS ROBERT BRINGHURST
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