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    • 5. 发明申请
    • HARD SURFACING FOR A CENTRIFUGE CONVEYOR
    • 中央输送机的硬表面
    • WO1981002853A1
    • 1981-10-15
    • PCT/US1981000364
    • 1981-03-16
    • PENNWALT CORP
    • PENNWALT CORPSHAPIRO L
    • B04B01/20
    • B65G33/265B04B1/2008
    • A centrifuge conveyor (14) is provided with improved hard surfacing wherein unitary subassemblies of backing tiles (26X) and wear-resistant members (28X)are welded by the backing tile (26X) to the conveyor (14) A subassembly is made unitary by the interengagement of the wear-resistant member (28X) to an undercut groove in the backing tile (26X) and by bonding with a heat reactive adhesive (300) or grout applied to the interengaging parts. Each fragile wear-resistant member is braced against deflection at its outer portion through its backing tile to the conveyor. The preferred embodiment employs a plurality of wear-resistant members per backing tile, each such member being accurately pressed to its intricate, interlocking shape from sintered tungsten carbide.
    • 离心机输送机(14)具有改进的硬表面,其中背衬瓦片(26X)和耐磨构件(28X)的单一子组件由背衬瓦片(26X)焊接到输送机(14)。组件由 耐磨构件(28X)与背衬瓦(26X)中的底切槽的接合,并且与施加到相互接合部分的热反应性粘合剂(300)或浆料粘合。 每个脆弱的耐磨构件通过其背衬瓦片到输送机的外部部分支撑其偏转。 优选实施例每个背衬瓦片采用多个耐磨构件,每个这样的构件被精确地压制成其与烧结碳化钨的复杂的互锁形状。
    • 9. 发明申请
    • LOW RIPPLE REGULATED X-RAY TUBE POWER SUPPLY FILAMENT TRANSFORMER
    • 低纹波调节X射线管电源变压器
    • WO1982003150A1
    • 1982-09-16
    • PCT/US1981001471
    • 1981-12-01
    • PENNWALT CORP
    • PENNWALT CORPWUERFLEIN DON EDWARD
    • H05G01/10
    • H05G1/20H01F30/16H05G1/06H05G1/10H05G1/30H05G1/32H05G1/34
    • A low ripple high voltage power supply and a filament transformer for use therewith in a dental X-ray system. The power supply utilizes a rectifier (52) and regulator circuit (156) to provide a low voltage regulated DC signal, a DC-AC converter (75, 81, 82, 83, 84) for providing a high frequency chopped power signal suitable for efficient transformation to a high voltage, followed by a multiplier (160) for generating the final high voltage signal to be applied to the X-ray tube. A high frequency clock circuit (110, 111) is used for driving the converter and also for controlling logic circuitry used to develop the regulator control signals. Both a voltage and a current control loop are utilized in the regulator control, and the tube anode current and filament current are controlled as a function of sensed anode current. The filament transformer (102) is coaxially structured, employs a single turn secondary, and insures minimal high voltage stress areas within the tube-head of the X-ray system.
    • 低纹波高压电源和用于牙科X射线系统的灯丝变压器。 电源使用整流器(52)和调节器电路(156)来提供低电压调节的DC信号,DC-AC转换器(75,81,82,83,84),用于提供适合于 有效地转换为高电压,随后是用于产生要施加到X射线管的最终高电压信号的乘法器(160)。 高频时钟电路(110,111)用于驱动转换器,并且还用于控制用于开发调节器控制信号的逻辑电路。 在调节器控制中都使用电压和电流控制回路,并且将管阳极电流和灯丝电流作为感测到的阳极电流的函数进行控制。 灯丝变压器(102)同轴构造,采用单匝次级,并确保X射线系统的管头内的最小高压应力区域。
    • 10. 发明申请
    • POWER STEERING DIRECTION SENSOR
    • 动力转向方向传感器
    • WO1982000813A1
    • 1982-03-18
    • PCT/US1981001135
    • 1981-08-24
    • PENNWALT CORP
    • PENNWALT CORPFERREN RKULISCHENKO WBLOOMFIELD P
    • B63H25/00
    • B62D15/02B63H25/24G01L5/221
    • Un systeme de direction possede un appareil de commande sensible ameliore. Un materiau plastique, de preference un film de fluorure de polyvinylidene (PVDF), rendu hautement piezoelectrique par des procedes connus, est place dans une structure d'une unite detectrice (94) ou une pression est exercee contre le film piezoelectrique (140) par la rotation de la roue de direction (12) du bateau (10) ou du vehicule de maniere telle que le film piezoelectrique (140) genere des signaux electriques qui sont utilises pour commander les tours/minute d'un moteur de servo-direction reversible instantanement, de faible inertie. Les tours/minute du moteur sont sensiblement proportionnels aux signaux electriques qui, a leur tour, sont determines par et sensibles aux degres de rotation et a la vitesse de rotation de la roue de direction (12). Le sens de rotation de la roue direction (12) determine le sens de la direction assistee, soit vers la gauche soit vers la droite. Cependant, le couple disponible du moteur est sensiblement inversement proportionnel au nombre de tours/minute du moteur qui propulse le bateau (10) ou vehicule.