CONNECTION AND CONTROL DEVICE FOR FLUID MACHINES
    1.
    发明申请
    CONNECTION AND CONTROL DEVICE FOR FLUID MACHINES 审中-公开
    流体机械连接和控制装置

    公开(公告)号:WO1993001443A1

    公开(公告)日:1993-01-21

    申请号:PCT/US1992005597

    申请日:1992-06-30

    Abstract: A fluid connection and control device for fluid machines permits fluid inlet or outlet connections without the necessity for threaded adapters. This is accomplished by a radially symmetrical body (25) having first and second ends and a central axial fluid passage (28) connecting the ends. The body is appropriately sized for the fluid channel of the fluid machine and has a provision (22) at the first end for attachment of a flexible hose (20). The second end has a provision for a fluid tight seal between the body and the fluid channel as well as a mechanism by which the body is captured within the fluid channel (15) of the fluid machine. Options are provided for incorporation of a valve mechanism (33) for controlling the fluid flow. The valve mechanism may be incorporated as an integral part of the body or as a separate modular unit (fig. 3) which is retained in the fluid channel (15) by the connector body (25). This provides the advantages of rapid assembly and avoidance of undue stresses to the fluid machine housing, and also provides flexibility of the hose directly adjacent the housing which contributes to improved maneuverability.

    WRAP SPRING CLUTCH FOR PERCUSSIVE APPARATUS
    2.
    发明申请
    WRAP SPRING CLUTCH FOR PERCUSSIVE APPARATUS 审中-公开
    WRAP弹簧离合器用于佩戴装置

    公开(公告)号:WO1992018784A1

    公开(公告)日:1992-10-29

    申请号:PCT/US1992003157

    申请日:1992-04-16

    CPC classification number: F16D41/206 B25D16/003 E21B6/06

    Abstract: A clutch assembly (16) transmits rotary motion in a percussive apparatus (10) to a drill steel. The clutch assembly (16) includes a first hub (18) having a first cylindrical surface (24) formed thereon. A second hub (20) which is substantially rotationally coupled to the drill steel, has a second cylindrical surface (26) formed thereon. The second cylindrical surface (26) is coaxial with the first cylindrical surface (24). A wrap spring (17) engages a portion of both the first cylindrical surface (24) and the second cylindrical surface (26), wherein relative rotary motion between the first hub (18) and the second hub (20) is permitted in a first direction and restricted in a second direction. The wrap spring clutch (16) transmits motion supplied from a rifle bar assembly as well as a plunger bar arrangement.

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