会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 7. 发明授权
    • Adjustable crutch
    • 可调式拐杖
    • US4476885A
    • 1984-10-16
    • US432093
    • 1982-09-30
    • Joseph L. Stein
    • Joseph L. Stein
    • A61H3/02A61H3/00
    • A61H3/02
    • An improved crutch made up of three sections which quickly assemble and disassemble and adjust handle height using no nuts and bolts. The middle portion between the upper underarm support and the lower ground contact portions, has a pair of cross bars, the upper movable one of which is the handle. A pair of spring-loaded telescoping members mounts the handle on the lower fixed cross bar. Manipulation of the handle and the telescoping members permits one or both of handle height adjustment and/or assembly or disassembly in a single operation.
    • 一个改进的拐杖由三个部分组成,快速组装和拆卸,并且不使用螺母和螺栓调整手柄高度。 上腋下支撑件和下接地部分之间的中间部分具有一对横杆,其上部可移动的一个是手柄。 一对弹簧加载的伸缩构件将手柄安装在下固定横杆上。 手柄和伸缩构件的操纵允许在单个操作中一个或两个手柄高度调节和/或组装或拆卸。
    • 8. 发明授权
    • Improved performance direct bonded basic refractory brick and method of
manufacture
    • 改进性能直接粘结基本耐火砖及其制造方法
    • US4039343A
    • 1977-08-02
    • US645261
    • 1975-12-29
    • Joseph L. SteinWalter S. Treffner
    • Joseph L. SteinWalter S. Treffner
    • C04B35/047C04B35/04C04B35/12
    • C04B35/047
    • This invention provides improved high fired direct bonded basic magnesite-chrome refractory shapes, such as brick, characterized by the presence of chromium enriched spinel structures distributed in the matrix and bonding the individual periclase crystals. The shapes are thermally stable and resistant to slag penetration and erosion and enjoy improved service life in industrial furnace linings. Also provided is a method of making the improved refractory shapes which comprises forming a mixture of (1) from about 40% to about 75% by weight high purity magnesite, (2) from about 25% to about 60% by weight chrome ore and (3) from about 0.5% to about 10% by weight chromic oxide powder; pressing the mixture into a refractory shape; and firing the refractory shape to a temperature of at least 1700.degree. C.
    • 本发明提供了改进的高烧直接键合碱性菱镁铬耐火形状,例如砖,其特征在于分布在基质中的富含铬的尖晶石结构的存在并结合单独的胶质晶体。 这些形状是热稳定的,耐渣蚀和侵蚀,并且可以改善工业炉衬的使用寿命。 还提供了制备改进的耐火形状的方法,其包括形成(1)约40重量%至约75重量%的高纯度菱镁矿,(2)约25重量%至约60重量%的铬矿石和 (3)约0.5重量%至约10重量%的氧化铬粉末; 将混合物压成耐火形状; 并将耐火形状烧成至少1700℃的温度。