Image scanner with intrinsic biasing of a scan head
    31.
    发明授权
    Image scanner with intrinsic biasing of a scan head 失效
    具有扫描头固有偏置的图像扫描仪

    公开(公告)号:US06166829A

    公开(公告)日:2000-12-26

    申请号:US067785

    申请日:1998-04-28

    CPC classification number: H04N1/1026 H04N1/1017 H04N1/1043

    Abstract: An optical image scanner includes a scan head that is mounted onto a guide member with a bias torque that reduces uncertainty in position of the scan head. A drive member, such as a belt or cable, is attached to the scan head with an offset relative to a centerline of the guide member. A tensioning device ensures that the drive member asserts force on the scan head at each of the attachment points. As a result, a bias torque is placed onto the scan head, relative to the guide member, reducing uncertainty in position. For bidirectional movement, the biasing torque is the same for either direction of travel.

    Abstract translation: 光学图像扫描器包括扫描头,其以具有减小扫描头位置的不确定性的偏置扭矩安装在引导构件上。 诸如皮带或电缆的驱动构件以相对于引导构件的中心线的偏移量附接到扫描头。 张紧装置确保驱动构件在每个附接点处在扫描头上施加力。 结果,相对于引导构件,偏置扭矩被放置在扫描头上,减少了位置的不确定性。 对于双向运动,偏置扭矩对于任一方向都相同。

    Plunger switch providing relief for an excess plunger load
    33.
    发明授权
    Plunger switch providing relief for an excess plunger load 失效
    PLUNGER开关为越来越多的充电器负载提供放心

    公开(公告)号:US5224588A

    公开(公告)日:1993-07-06

    申请号:US868605

    申请日:1992-04-14

    Inventor: Stephen J. Cook

    CPC classification number: G05G5/04 B60Q1/441 H01H3/166 Y10S200/22

    Abstract: A switch (10) comprises a switch housing (11), a plunger (12) located within the switch housing (11), one end of the plunger (12) extending out of the housing (11), the plunger (12) being capable of limited movement relative to the housing (11). An electrical contact (17) is provided on the plunger (12) and is adapted to engage an electrical contact (19, 20) associated with the housing (11) at an outward limit of movement of the plunger (12). A stop (25) is provided coaxially of the plunger (12) for engagement of the end (18) of the plunger (12) at a normal inward limit of movement of the plunger (12). The stop (25) is displaceable axially when a load in excess of a predetermined magnitude is applied thereto by the plunger (12) to permit movement of the plunger (12) beyond its normal inward limit of movement relative to the housing (11).

    Alkaline earth metal sulphurised hydrocarbyl phenate-containing additive
concentrate, process for its production and use thereof
    39.
    发明授权
    Alkaline earth metal sulphurised hydrocarbyl phenate-containing additive concentrate, process for its production and use thereof 失效
    碱土金属硫化的含烃基酚盐的添加剂浓缩物,其生产和使用的方法

    公开(公告)号:US5397484A

    公开(公告)日:1995-03-14

    申请号:US76384

    申请日:1993-06-14

    CPC classification number: C10M159/22

    Abstract: An additive concentrate composition having a TBN greater than 300 suitable for incorporation into a finished lubricating oil composition comprising:(I') a first alkaline earth metal sulphurised hydrocarbyl phenate, and(II') a lubricating oil,the first alkaline earth metal sulphurised hydrocarbyl phenate (I') being obtained by overbasing a second alkaline earth metal sulphurised hydrocarbyl phenate containing at least 4% by weight sulphur, or its precursors, in the presence of the lubricating oil (II'), the amount of the lubricating oil (II') being such that the ratio of the weight of the additive concentrate to the weight of the second alkaline earth metal sulphurised hydrocarbyl phenate, or its precursors, is at least 3.0.

    Abstract translation: 一种TBN大于300的添加剂浓缩物组合物,其适用于掺入成品润滑油组合物中,该组合物包含:(I')第一碱土金属硫化烃基酚盐和(II')润滑油,第一碱土金属硫化烃基 酚酸盐(I')是通过在润滑油(II')存在下使含有至少4重量%硫或其前体的第二碱土金属硫化烃基酚盐过碱化得到的,润滑油(II ')使得添加剂浓缩物的重量与第二碱土金属硫化烃基酚盐或其前体的重量之比至少为3.0。

    Lubricating oil additives
    40.
    发明授权
    Lubricating oil additives 失效
    润滑油添加剂

    公开(公告)号:US5356550A

    公开(公告)日:1994-10-18

    申请号:US488058

    申请日:1990-06-08

    Abstract: A process for producing a dispersant/VI improver for use in finished lubricating oil compositions comprises reacting in a normally liquid substantially inert organic solvent (a) a copolymer of an olefin and a monomer having the structure (I), wherein X and X.sup.1 are the same or different provided that at least one of X and X.sup.1 is such that the copolymer can function as carboxylic acylating agent, (b) a succinimide, and (c) a primary or secondary amine or a mixture thereof. Preferred copolymers comprise maleic anhydride as a comonomer. In a preferred embodiment of the invention, the amine is a monoamine, and a polyamine is also added; the monoamine and polyamine are added to the reaction medium prior to addition of the succinimide.

    Abstract translation: PCT No.PCT / GB89 / 01225 Sec。 371日期:1990年6月8日 102(e)日期1990年6月8日PCT提交1989年10月17日PCT公布。 出版物WO90 / 04628 用于制备用于成品润滑油组合物的分散剂/ VI改进剂的方法包括在通常液体基本惰性的有机溶剂(a)中烯烃和具有结构(I)的单体的共聚物, 其中X和X 1相同或不同,条件是X和X 1中的至少一个使得共聚物可以起羧酸酰化剂的作用,(b)琥珀酰亚胺和(c)伯胺或仲胺或其混合物。 优选的共聚物包括马来酸酐作为共聚单体。 在本发明的优选实施方案中,胺是单胺,并且还加入多胺; 在加入琥珀酰亚胺之前,将单胺和多胺加入到反应介质中。

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