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    TUBULAR PNEUMODYNAMIC BEARING.
    1.
    发明公开
    TUBULAR PNEUMODYNAMIC BEARING. 失效
    ROHRFÖRMIGESPNEUMODYNAMISCHES LAGER。

    公开(公告)号：EP0130180A4

    公开(公告)日：1985-07-01

    申请号：EP83900481

    申请日：1982-12-30

    Applicant: IBM

    Inventor： CARUSO MARK BERNARD ,  SCRANTON ROBERT ALAN

    IPC: F16C27/02 ,  F16C32/00 ,  F16C32/06 ,  H01L41/09

    CPC classification number: F16C32/0611 ,  F16C32/06

    Abstract: This invention pertains to the technical field of vibratory pneumatodynamic bearings. The technical problem is to reduce bearing weight while not increasing pitch and yaw. This is accomplished by employing a transducer (41) including an elongated tube (42) with a shorter tube (44) which are bonded together, with one inside the other. This invention may be used in actuators for magnetic recorders. In one case elongated inner tube (42) is joined to the inner surface of the shorter outer tube (44). Transducer (41) carries a load at points of low vibration on inner tube (42). The outer tube (44) is piezoelectrically excited. The tubes (40, 42) are cylindrical and inner glass tube (42) rides on cylindrical rod (40). The mounting points are at saddle points (S, Fig. 7) on inner tube (42). The short outer tube (40) reduces transducer weight. Alternatively outer tube (90)can be longer than inner tube (91). In that case, outer tube supports tube (93), which rides on it.

    Abstract translation: 本发明涉及振动气动轴承技术领域。 技术问题是减少轴承重量，同时不增加俯仰和偏航。 这是通过使用包括具有较短管（44）的细长管（42）的换能器（41）来实现的，所述管（44）彼此粘合在一起。 本发明可以用于磁记录器的致动器。 在一种情况下，细长内管（42）连接到较短外管（44）的内表面。 换能器（41）在内管（42）上的低振动点处承载负载。 外管（44）被压电激励。 管（40,42）是圆柱形的并且内部玻璃管（42）骑在圆柱形杆（40）上。 安装点位于内管（42）的鞍点（S，图7）。 短外管（40）减小了换能器的重量。 或者，外管（90）可以比内管（91）长。 在这种情况下，外管支撑安置在其上的管（93）。

    7.
    发明专利
    未知

    公开(公告)号：DE3583831D1

    公开(公告)日：1991-09-26

    申请号：DE3583831

    申请日：1985-06-03

    Applicant: IBM

    Inventor： SCRANTON ROBERT ALAN ,  THOMPSON DAVID ALLEN

    IPC: G01R27/26 ,  G01D5/24 ,  G01H11/02 ,  G01H11/06 ,  G01N27/22 ,  G11B5/31 ,  G11B5/48 ,  G11B5/58 ,  G11B5/596 ,  G11B5/60 ,  G11B9/07 ,  G11B21/21 ,  G11B9/06

    Abstract: The top drawing shows a magnetic head structure having means for detecting small capacitive variations which can be processed to give positional information about the head. The head comprises a substrate 32 carrying pole pieces and their associated pick-up coil 38 and contact pads 36, 37. The detecting means comprise a coil 26 providing an inductive reactance which is connected between a ground pad 23 and a capacitive pick-up electrode 24. The coil is inductively coupled to input arrangement 27 and to output arrangement 28. The other drawings show the equivalent circuit diagram. In use of the structure an oscillator is coupled to the input arrangement 27 and suitable circuitry connected to output arrangement 28 to detect amplitude modulation of the signal induced therein. These modulations provide information about the detected capacitive variations.

    DATA INPUT PEN FOR SIGNATURE VERIFICATION
    8.
    发明专利
    DATA INPUT PEN FOR SIGNATURE VERIFICATION 未知

    公开(公告)号：DE3367293D1

    公开(公告)日：1986-12-04

    申请号：DE3367293

    申请日：1983-05-19

    Applicant: IBM

    Inventor： CHAINER TIMOTHY JOSEPH ,  SCRANTON ROBERT ALAN ,  WORTHINGTON THOMAS KIMBER

    IPC: G06F3/041 ,  B43K8/22 ,  G06F3/033 ,  G06K9/00 ,  G06K9/24 ,  G07C9/00 ,  G06F3/03 ,  G06K11/06

    Abstract: A pen (10) has a conductive casing (12) with an ink writing tip (21). The tip (21) is detachably mounted on the movable end of a piezoelectric tube (26), which has an opposite end (27) fixed to a mounting in the casing (12), so that the tube is mounted in cantilever fashion. The tube (26) has inner and outer tubular electrodes between which an electric signal is generated according to the pressure on the tip during pen use. A second piezoelectric tube (24), also mounted in cantilever fashion so as to have a movable end (25) and a fixed end (23), is located behind the tip and has a different arrangement of five electrodes for providing x, y signals according to the transverse accelerations of the pen during use. The pressure and accelerometer signals are electrically processed by electronic circuitry (22) before leaving the pen on cable (8).

    FLUID BEARING ASSEMBLY
    9.
    发明专利
    FLUID BEARING ASSEMBLY 未知

    公开(公告)号：DE3269326D1

    公开(公告)日：1986-04-03

    申请号：DE3269326

    申请日：1982-05-14

    Applicant: IBM

    Inventor： SCRANTON ROBERT ALAN

    IPC: F16C32/00 ,  F16C32/06 ,  G11B21/02 ,  F16C17/00

    Abstract: An oscillating pneumatodynamic bearing takes the form of a laminated transducer disk cooperating with a flat surface or a tubular transducer cooperating with a rod or an enclosing tube. Such bearings are also known as squeeze bearings. At least one piezoelectric, magnetostrictive or electrostrictive material is laminated with another material to provide oscillation of the transducer portion of the bearing so that the transducer portion is able to fly above a bearing surface on a fluid which is usually ambient air compressed by the mechanical oscillation of the transducer portion at an ultrasonic frequency. The disk or the tube is connected mechanically to supports and to its electrical sources of energy or signals at points along the loci of zero oscillation or minimal oscillation. With a laminated disk, a nodal circle is the locus of zero oscillation. In the case of the tube, a number of parallel strips of reversed polarity transducer material are alternately connected together by an interdigitated electrode design of spacing grooves between an enveloping conductive layer which overlies the piezoelectric layer laminated to a metallic base. Bearings for armatures of linear motor types of actuators for reciprocating magnetic recording heads within magnetic recording disk files can employ a set of disk type bearings or a combination of a tubular bearing with at least one disk type bearing.

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