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    • 1. 发明授权
    • Composite load cell
    • 复合称重传感器
    • US06555767B1
    • 2003-04-29
    • US09642644
    • 2000-08-22
    • Harry E. LockeryRobert L. Gray
    • Harry E. LockeryRobert L. Gray
    • G01L104
    • G01L1/2206G01G3/1412Y10T29/49004
    • A low cost strain gage load cell made without compromising accuracy and stability by a composite structure using a sensing element formed of a load cell quality material, such as metal or a metal alloy, and adjoining non-sensing elements formed of a molded plastic material. Stable and secure joints between the load cell sensing element and the plastic non-sensing element of such a load cell are provided using various structures and related structural manufacturing methods. For example, non-sensing elements, such as a mounting block to mount the load cell to a base support and a load application block to receive a load platform, are formed of an injection molded plastic and sensing elements, such as first and second parallel beams of a load cell quality metal alloy, have ends embedded in the injected molded plastic non-sensing elements. The composite load cell structure is applicable to many different types of load cell designs.
    • 低成本应变计称重传感器通过使用由诸如金属或金属合金的称重传感器质量材料形成的感测元件以及由模制塑料材料形成的邻接非感测元件的复合结构而不损害精度和稳定性。 使用各种结构和相关的结构制造方法提供了称重传感元件和这种称重传感器的塑料非传感元件之间的稳定且牢固的连接。 例如,诸如将负载传感器安装到基座支架的安装块和用于接收负载平台的负载施加块的非感测元件由注射成型的塑料和感测元件形成,诸如第一和第二平行 称重传感器质量金属合金的光束具有嵌入注射的模制塑料非感应元件中的端部。 复合称重传感器结构适用于许多不同类型的称重传感器设计。
    • 2. 发明授权
    • Double bending beam load cell
    • 双弯梁称重传感器
    • US06504114B1
    • 2003-01-07
    • US09642645
    • 2000-08-22
    • Harry E. LockeryRobert L. Gray
    • Harry E. LockeryRobert L. Gray
    • G01G308
    • G01G3/1412G01L1/2243
    • A precision double bending beam load cell made at low cost by using load cell quality material in the bending beams only, while less costly material is used for end blocks to maintain the beams in a predetermined parallel relationship and to mount the load cell, provided that the joints between the beams and the end blocks are slip free. Slip free joints can be obtained by making the end blocks in the form of rods with necks press fitted into matching holes at the ends of the beams, or by laser welding or hard soldering metal end blocks to metal bending beams. Plastic end blocks can also be injected molded onto the ends of bending beams with holes and scalloped edges for the injection molded plastic to grip onto. Shrinkage or expansion of the plastic material during the curing process will then make the joints prestressed and slip free.
    • 一种精密双重弯曲梁称重传感器,通过仅在弯曲梁中使用称重传感器质量材料,以低成本制造,而较少成本的材料用于端块以将梁保持在预定的平行关系并安装称重传感器,只要 梁和端块之间的接头是无滑动的。 可以通过将带有颈部的棒形式的端块嵌入到梁的端部的匹配孔中,或者通过激光焊接或硬焊接金属端块到金属弯曲梁来获得无滑动接头。 塑料端块也可以注塑成弯曲梁的端部,孔和扇形边缘用于注塑塑料以夹紧。 在固化过程中,塑料材料的收缩或膨胀将使接缝预应力和滑动。
    • 3. 发明授权
    • Bending beam load cell with torque sensitivity compensation
    • 弯曲梁称重传感器具有转矩灵敏度补偿
    • US06910392B2
    • 2005-06-28
    • US10368347
    • 2003-02-20
    • Harry E. LockeryRobert L. Gray
    • Harry E. LockeryRobert L. Gray
    • G01G3/14G01L1/04
    • G01G3/1414G01G3/1412
    • A bending beam load cell can be compensated for side-to-side off center load sensitivity by simple electrical adjustments if a pair of shear sensing strain gages are bonded to each bending beam midway between axial strain gages used to measure bending strains. The shear sensing strain gages measure torque on the load cell, and are incorporated in bridge circuits that make it possible to vary the amount of torque sensitivity correction by changing the value of a trimming resistor. The bridge circuits also include circuit components for compensation of front-to-back off center load error and for zero adjustment. Four strain gages on each bending beam can be part of a single composite strain gage element, so the shear sensing strain gages do not add any cost to the load cell. Such a load cell can also be hermetically sealed before any compensation of offset load errors is done.
    • 如果在用于测量弯曲应变的轴向应变计之间中间的每个弯曲梁上粘合了一对剪切感应应变计,则可以通过简单的电气调整来补偿弯曲梁称重传感器的侧向偏心荷载灵敏度。 剪切感应应变片测量称重传感器上的扭矩,并且被并入桥接电路中,使得可以通过改变微调电阻器的值来改变转矩灵敏度校正量。 桥接电路还包括用于补偿前后偏心负载误差和零调整的电路部件。 每个弯曲梁上的四个应变计可以是单个复合应变计元件的一部分,因此剪切传感应变计不会对测力传感器造成任何成本。 在完成偏移负载误差的任何补偿之前,这样的称重传感器也可以被密封。
    • 5. 发明授权
    • Stable liquid detergent containing insoluble oxidant
    • 稳定的液体洗涤剂含有不溶性氧化剂
    • US5019289A
    • 1991-05-28
    • US458873
    • 1989-12-29
    • Robert L. GrayDavid PetersonLoren ChenGregory V. Buskirk
    • Robert L. GrayDavid PetersonLoren ChenGregory V. Buskirk
    • C11D3/39C11D17/00
    • C11D17/0026C11D3/3942C11D3/3947
    • The invention provides a phase stable liquid detergent composition containing at least one insoluble oxidant, comprising:(a) a liquid phase which comprises: (i) an effective amount of at least one surfactant selected from the group consisting of anionic, nonionic, cationic, amphoteric, zwitterionic surfactants, and mixtures thereof; (ii) a liquid carrier therefor, comprising water soluble or dispersible organic solvents, water, or a mixture thereof;(b) an effective amount of a water insoluble oxidant stably suspended in said liquid phase, which maintains oxidative stability, said water insoluble oxidant being an alkaline earth metal peroxide or a Group IIB peroxide; and(c) a stabilizer which is either a source of common ions or by buffering to a pH of greater than 8.
    • 本发明提供了含有至少一种不溶性氧化剂的相稳定液体洗涤剂组合物,其包含:(a)液相,其包含:(i)有效量的至少一种选自阴离子,非离子,阳离子, 两性离子,两性离子表面活性剂及其混合物; (ii)其液体载体,其包含水溶性或可分散的有机溶剂,水或其混合物; (b)有效量的稳定悬浮在所述液相中的水不溶性氧化剂,其维持氧化稳定性,所述水不溶性氧化剂是碱土金属过氧化物或IIB族过氧化物; 和(c)作为常见离子源或缓冲至pH大于8的稳定剂。