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9 条记录 (耗时 0.011 秒)

    Piston and piston rod assembly for hydraulic jack
    5.
    发明授权
    Piston and piston rod assembly for hydraulic jack 失效
    活塞式活塞活塞组件

    公开(公告)号：US3802323A

    公开(公告)日：1974-04-09

    申请号：US30733972

    申请日：1972-11-17

    申请人： HEIN WERNER CORP

    发明人： SUECHTING W

    IPC分类号： B66F3/42 ,  F16J1/22 ,  F01B9/00 ,  F16J1/14

    CPC分类号： F16J1/22 ,  B66F3/42

    摘要： A nylon piston member is mounted for reciprocal movement in a piston cylinder and has a socket formed in one end thereof. The piston member is operatively connected to an actuating handle by a piston rod member having one end pivotally connected to the handle and having a ball portion formed on the other end adapted to be snapped into the socket formed in the end of the piston for retention in such socket. The ball on the piston rod may be provided with a rearwardly facing shoulder to insure secure retention of the ball in the socket formed in the piston and to prevent a wedging action which would tend to expand the piston thereby increasing friction between piston and cylinder.

    摘要翻译： 尼龙活塞件安装在活塞缸中往复运动，并在其一端形成有一个插座。 活塞构件通过活塞杆构件可操作地连接到致动手柄，该活塞杆构件的一端枢转地连接到手柄，并且具有形成在另一端上的球形部分，该球形部分适于卡扣在形成于活塞端部的口中以保持在 这样的插座。 活塞杆上的球可以设置有向后的肩部，以确保将球保持在形成在活塞中的插座中，并且防止会使活塞膨胀的楔入动作从而增加活塞和气缸之间的摩擦。

    Backhoe having an articulated gooseneck boom
    6.
    发明授权
    Backhoe having an articulated gooseneck boom 失效
    有一个古老的GOOSENECK BOOM的BACKHOE

    公开(公告)号：US3589539A

    公开(公告)日：1971-06-29

    申请号：US3589539D

    申请日：1969-06-27

    申请人： HEIN WERNER CORP

    发明人： WITWER WALLACE J

    IPC分类号： E02F3/30 ,  E02F3/38 ,  E02F3/42 ,  E02F3/74

    CPC分类号： E02F3/32 ,  E02F3/301 ,  E02F3/38

    摘要： A backhoe having a boom with an articulated gooseneck, said articulated gooseneck enabling the boom to be retracted and extended to a greater extent than is possible with either a straight boom or a fixed gooseneck boom and, in fact, possessing all of the advantages of each thus achieving a much larger digging profile than is possible with either.