Circumferential flow heat exchanger
    1.
    发明授权
    Circumferential flow heat exchanger 失效
    循环流量换热器

    公开(公告)号:US5179999A

    公开(公告)日:1993-01-19

    申请号:US808367

    申请日:1991-12-16

    IPC分类号: F28F3/08 F28D9/00 F28F3/04

    摘要: An improvement in circumferential flow heat exchangers of the type having a stack of heat exchange units each formed from first and second thin plates having grooves and ribs, wherein the grooves and ribs on facing surfaces of the first and second plates of a unit cross one another and cooperate to define a first flow path extending once about the interior of such unit through less than about one circumscription and grooves and ribs on facing surfaces of first and second plates of adjacent units cross one another and cooperate to define a second flow path, characterized in that the first and second plates of each unit are configured to provide the second flow path with a cross-sectional area exceeding the cross-sectional area of the first flow path.

    摘要翻译: 具有一组热交换单元的圆周流型热交换器的改进,每个热交换单元由具有凹槽和肋的第一和第二薄板形成,其中单元的第一和第二板的相对表面上的凹槽和肋相互交叉 并且协作以限定通过小于约一个外围围绕该单元的内部延伸一次的第一流动路径,并且相邻单元的第一和第二板的相对表面上的凹槽和肋条彼此交叉并且协作以限定第二流动路径,其特征在于 因为每个单元的第一和第二板被构造成为第二流动路径提供超过第一流动通道的横截面面积的横截面面积。

    Balanced door closing apparatus
    2.
    发明授权
    Balanced door closing apparatus 有权
    平衡门关闭装置

    公开(公告)号:US06178698B2

    公开(公告)日:2001-01-30

    申请号:US09337442

    申请日:1999-06-21

    IPC分类号: E05D706

    摘要: An improved door closing apparatus (20) is adapted for use with a door frame (21) that comprises an elongated header (22), a sill (23) and a pair of side jambs (24, 25). A door (26) is adapted to be mounted on the frame for pivotal movement about an axis (y—y). The improved comprises a base (29) adapted to be mounted on the header, a closer mechanism (30) mounted on the base and having a first shaft (31) adapted to be oriented perpendicularly with respect to the axis of elongation of the header. The closer mechanism is operatively arranged to selectively urge the first shaft to rotate relative to the closer mechanism. A second shaft (33) is mounted on the base for pivotal movement relative thereto. The second shaft is substantially aligned with the pivotal excess of the door. First and second arms (34, 35) are mounted on the first and second shafts, respectively, for movement therewith. A link (36) pivotally connects the first and second arms that respective locations eccentric to the axes of the first and second shafts. Hence, a force transmitted by the closing mechanism may be transmitted through the first shaft, the first arm, the link, the second arm and the second shaft to urge the door to pivot in one direction about its axis.

    摘要翻译: 改进的关门装置(20)适合于与包括细长头部(22),基底(23)和一对侧边条(24,25)的门框(21)一起使用。 门(26)适于安装在框架上以围绕轴线(y-y)枢转运动。 改进的包括适于安装在集管上的底座(29),安装在基座上的更靠近的机构(30),并且具有适于相对于集管的伸长轴线垂直定向的第一轴(31)。 较近的机构可操作地布置成选择性地推动第一轴相对于较近的机构旋转。 第二轴(33)安装在基座上以相对于其枢转运动。 第二轴基本上与门的枢转过多对齐。 第一和第二臂(34,35)分别安装在第一和第二轴上以与其一起运动。 连杆(36)将第一和第二臂枢转地连接到相对于第一和第二轴的轴线偏心的相应位置。 因此,由闭合机构传递的力可以通过第一轴,第一臂,连杆,第二臂和第二轴传递,以促使门围绕其轴线在一个方向上枢转。

    Method of making a one-piece ball bearing retainer
    3.
    发明授权
    Method of making a one-piece ball bearing retainer 失效
    制造一体式滚珠轴承保持架的方法

    公开(公告)号:US5291655A

    公开(公告)日:1994-03-08

    申请号:US11432

    申请日:1993-01-29

    摘要: Material is first formed into a flat ring. Ball receiving pockets are formed in the flat ring leaving bridge material between adjacent pockets. Bridge material between adjacent pockets is flattened such that the bridge material spreads to meet the adjacent bearing balls, thereby locking the retainer within a ball bearing assembly. The resulting substantially flat bridge between adjacent reconfigured ball pockets is then crimped such that ends of the bridge are moved slightly toward each other and pressure of the reconfigured ball pockets against the bearing balls is reduced.

    摘要翻译: 材料首先形成平环。 在平环中形成球接收袋,在相邻袋之间留下桥材料。 相邻袋之间的桥梁材料变平,使得桥梁材料扩展以与相邻的轴承球相遇,从而将保持器锁定在球轴承组件内。 然后在相邻的重新配置的球窝之间形成的基本上平坦的桥接件被压接,使得桥的端部彼此稍微移动,并且重新配置的球窝相对于轴承球的压力减小。