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    • 21. 发明授权
    • Process for the production of polyurethane plastics
    • 聚氨酯塑料生产工艺
    • US4331778A
    • 1982-05-25
    • US102162
    • 1979-12-10
    • Claus-Dieter SommerfeldPeter HaasKuno WagnerManfred Kapps
    • Claus-Dieter SommerfeldPeter HaasKuno WagnerManfred Kapps
    • C08G18/00C08G18/18C08G18/14
    • C08G18/1833C08G18/1808
    • The present invention relates to a process for the production of polyurethane plastics by reacting compounds containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight in the range of from 400 to 10,000, polyisocyanates and, optionally, chain extenders having a molecular weight of from 32 to 400, foam stabilizers, water and/or organic blowing agents in the presence of catalysts containing tertiary nitrogen. These catalysts are characterized in that mixtures of (a) one or more cross-linking catalysts corresponding to the following general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which may be the same or different, represent C.sub.1 -C.sub.5 -alkyl radicals, preferably CH.sub.3 -- or C.sub.2 H.sub.5 radicals,R' and R" represent hydrogen or the same or different C.sub.1 -C.sub.3 -alkyl radicals, preferably CH.sub.3 -- or C.sub.2 H.sub.5 -- radicals, andn represents an integer of from 1 to 10, preferably from 4 to 8,(b) blowing catalysts corresponding to the following general formula: ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, are as defined above andX represents oxygen or ##STR3## where R'" represents a C.sub.1 -C.sub.5 alkyl radical, preferably a CH.sub.3 -- or C.sub.2 H.sub.5 -- radical,p represents an integer of from 2 to 4 andr represents an integer of from 1 to 3, andm and o which may be the same or different, represent numbers ranging from 1 to 10, preferably from 1 to 3 in value.
    • 本发明涉及通过使包含至少两个异氰酸酯反应性氢原子的化合物与分子量范围为400至10,000的多异氰酸酯和任选的具有分子量的扩链剂来生产聚氨酯塑料的方法 的32至400,泡沫稳定剂,水和/或有机发泡剂在含有叔氮的催化剂存在下。 这些催化剂的特征在于:(a)一种或多种交联催化剂的混合物,其对应于以下通式:其中R1,R2,R3和R4可以相同或不同,表示C1-C5-烷基 自由基,优选CH 3 - 或C 2 H 5基团,R'和R“表示氢或相同或不同的C 1 -C 3 - 烷基,优选CH 3 - 或C 2 H 5 - 基,n表示1至10的整数,优选 4至8,(b)对应于以下通式的发泡催化剂:其中R 1,R 2,R 3和R 4如上所定义,X代表氧或者其中R“'表示C1-C5 烷基,优选CH 3 - 或C 2 H 5 - 基,p表示2〜4的整数,r表示1〜3的整数,m和o可以相同或不同,表示1〜 10,优选为1〜3。
    • 25. 发明授权
    • Induction machines
    • US11320288B2
    • 2022-05-03
    • US17145278
    • 2021-01-08
    • Peter Haas
    • Peter Haas
    • G01D5/14G01D5/20G01D5/22H01F27/28H01F5/00H02K11/20H01F27/24
    • The invention relates to a novel type of electric inductance arrangement for a series of applications in the field of distance measurement, sensor-based detection of objects, and construction of induction machines. The novelty consists in the type of inductance arrangement of the receiver or transmitter coil, said arrangement being designed in the form of a ladder rung arrangement, wherein the ladder spars short-circuit the rungs. The sum of all the short-circuit currents is an indicator of what is occurring in the surroundings of the arrangement. This could be changing magnetic fields caused by transmitter objects or additional ladder-rung systems acting as transmitters. Multiple such sensors and transmitters can be designed in the ladder-rung form, said sensors and transmitters being connected in parallel or in series according to the application under certain circumstances and if necessary assuming the excitation function by moving a conductor through which a direct current is flowing or by applying alternating currents. The aforementioned inductance arrangement results positively in that the coils can all have a completely crossover-free design and are therefore substantially simpler to technically implement for very different applications in electrical engineering. The applicability ranges from short-range distance measuring devices and long-range object location to light detection and efficient induction machines with large or also very small constructions.
    • 26. 发明申请
    • SEAT-BELT LOCK ASSEMBLY
    • 座垫组合
    • US20140059815A1
    • 2014-03-06
    • US14113011
    • 2012-04-18
    • Peter Haas
    • Peter Haas
    • A44B11/25
    • A44B11/2507A44B11/2523A44B11/2561A44B11/2569Y10T24/45
    • A belt buckle assembly, especially for a seat belt system in a motor vehicle, includes a belt buckle (10) and a plug-in tongue (12) lockable in the belt buckle (10) by means of a locking mechanism. A component of the locking mechanism of the belt buckle (10) interacting with the plug-in tongue (12) inside the belt buckle (10) and/or the plug-in tongue (12) has/have design features at a locking portion (16) interacting with the locking mechanism of the belt buckle (10) inside the belt buckle (10). The design features enable the plug-in tongue (12) to be locked in the belt buckle (10) only at one of at least two possible orientations of the plug-in tongue (12) in the belt buckle (10).
    • 一种特别用于机动车辆中的安全带系统的皮带扣组件包括带扣(10)和可通过锁定机构锁定在带扣(10)中的插入式舌头(12)。 与带扣(10)和/或插入式舌头(12)内的插入式舌头(12)相互作用的带扣(10)的锁定机构的部件在锁定部分具有设计特征 (16)与带扣(10)内部的带扣(10)的锁定机构相互作用。 该设计特征使得插入式舌头(12)只能在皮带扣(10)中的插入式舌头(12)的至少两个可能取向中的任一个中被锁定在带扣(10)中。
    • 30. 发明申请
    • Consistent histogram maintenance using query feedback
    • 使用查询反馈进行一致的直方图维护
    • US20070078808A1
    • 2007-04-05
    • US11239044
    • 2005-09-30
    • Peter HaasVolker MarklNimrod MegiddoUtkarsh Srivastava
    • Peter HaasVolker MarklNimrod MegiddoUtkarsh Srivastava
    • G06F17/30
    • G06F17/30536
    • A novel method is employed for collecting optimizer statistics for optimizing database queries by gathering feedback from the query execution engine about the observed cardinality of predicates and constructing and maintaining multidimensional histograms. This makes use of the correlation between data columns without employing an inefficient data scan. The maximum entropy principle is used to approximate the true data distribution by a histogram distribution that is as “simple” as possible while being consistent with the observed predicate cardinalities. Changes in the underlying data are readily adapted to, automatically detecting and eliminating inconsistent feedback information in an efficient manner. The size of the histogram is controlled by retaining only the most “important” feedback.
    • 采用一种新颖的方法来收集优化器统计数据,以优化数据库查询,方法是从查询执行引擎收集有关观察到的谓词的基数并构建和维护多维直方图的反馈。 这使得利用数据列之间的相关性而不采用低效的数据扫描。 最大熵原理用于通过尽可能“简单”的直方图分布近似真实数据分布,同时与观察到的谓词基数一致。 底层数据的变化很容易适应于以有效的方式自动检测和消除不一致的反馈信息。 通过仅保留最重要的反馈来控制直方图的大小。