公开(公告)号：US5950991A

公开(公告)日：1999-09-14

申请号：US852094

申请日：1997-05-06

申请人： Kirit R. Patel ,  Edward J. Lunder

发明人： Kirit R. Patel ,  Edward J. Lunder

IPC分类号： B66D5/14 ,  B66D5/26 ,  E21B19/08 ,  F16D55/00 ,  F16D55/40 ,  F16D65/14 ,  F16D65/78

CPC分类号： B66D5/14 ,  B66D5/26 ,  E21B19/08 ,  F16D55/40 ,  F16D2055/0058 ,  F16D2065/132 ,  F16D2065/784 ,  F16D2121/12 ,  F16D2123/00

摘要： An improved force transmitting apparatus for transmitting force between first and second members includes a plurality of force transmitting assemblies. The force transmitting assemblies are operable between engaged conditions in which the first force transmitting apparatus is effective to transmit force and disengaged conditions in which the force transmitting apparatus is ineffective to transmit force. A controller operates the force transmitting assemblies between the disengaged and engaged conditions as a function of a load applied to the apparatus. The improved force transmitting apparatus is useful as a brake in a drilling system having a draw string connectable with pipe. The force transmitting assemblies are connected with a drum of a winch connected to the draw string.

摘要翻译： 用于在第一和第二构件之间传递力的改进的力传递装置包括多个力传递组件。 力传递组件可在其中第一力传递装置有效传递力的接合状态和力传递装置无效传递力的分离状态之间操作。 控制器根据施加到设备的负载的函数在分离和接合状态之间操作力传递组件。 改进的力传递装置可用作具有可与管道连接的牵引柱的钻井系统中的制动器。 力传递组件与连接到牵引绳的绞盘的滚筒连接。

公开(公告)号：US5383544A

公开(公告)日：1995-01-24

申请号：US134971

申请日：1993-10-12

申请人： Kirit R. Patel

发明人： Kirit R. Patel

IPC分类号： F16D13/52 ,  F16D13/69 ,  F16D55/00 ,  F16D55/40 ,  F16D59/02 ,  F16D65/12

CPC分类号： F16D59/02 ,  F16D13/52 ,  F16D55/40 ,  F16D65/12 ,  F16D2055/0058

摘要： An improved force transmitting assembly includes a pair of force transmitting discs and a reaction disc which is disposed between the force transmitting discs. When the force transmitting assembly is in a disengaged condition, a spacer assembly maintains the force transmitting discs spaced apart by a distance which is greater than the distance between opposite side surfaces of the reaction disc. A locator assembly moves the force transmitting discs to predetermined positions whenever the force transmitting assembly is operated from the engaged condition to the disengaged condition. As the force transmitting assembly is disengaged, the locator assembly pulls one force transmitting disc to a predetermined position. Since the spacer assembly maintains a predetermined space between the two force transmitting discs, the other force transmitting disc is also moved to a predetermined position as the locator assembly pulls the one force transmitting disc to a predetermined position.

摘要翻译： 改进的力传递组件包括一对力传递盘和设置在力传递盘之间的反作用盘。 当力传递组件处于脱离状态时，间隔件组件将力传递盘保持间隔一定距离，该距离大于反作用盘的相对侧表面之间的距离。 只要力传递组件从接合状态操作到脱离状态，定位器组件将力传递盘移动到预定位置。 当力传递组件脱离时，定位器组件将一个力传递盘拉到预定位置。 由于间隔件组件在两个力传递盘之间保持预定的空间，所以当定位器组件将一个力传递盘拉到预定位置时，另一个力传递盘也移动到预定位置。

公开(公告)号：US6148980A

公开(公告)日：2000-11-21

申请号：US004007

申请日：1998-01-07

申请人： Kirit R. Patel ,  Richard F. Plantan ,  James M. Latsko

发明人： Kirit R. Patel ,  Richard F. Plantan ,  James M. Latsko

IPC分类号： F16D25/0638 ,  F16D55/00 ,  F16D55/40 ,  F16D65/14 ,  F16D65/78 ,  F16D65/853 ,  F16D11/06

CPC分类号： F16D65/853 ,  F16D55/40 ,  F16D65/186 ,  F16D2055/0058 ,  F16D2055/0091 ,  F16D2065/784 ,  F16D2121/02 ,  F16D2121/12 ,  F16D2123/00

摘要： A force transmitting assembly is operable between a plurality of engaged conditions and a disengaged condition in which the force transmitting assembly is ineffective to transmit force. The force transmitting assembly includes a primary piston assembly having annular radially inner and outer piston areas against which fluid pressure is applied to vary the magnitude of the force which can be transmitted by the force transmitting assembly. The force transmitting assembly also includes a secondary piston assembly having radially inner and outer piston areas against which fluid pressure is applied to vary the magnitude of the force which can be transmitted by the force transmitting assembly. In one embodiment of the invention, the secondary piston assembly includes two separate pistons. In another embodiment of the embodiment of the invention, the secondary piston assembly includes a single piston having annular radially inner, radially outer, and intermediate piston areas against which fluid pressure is applied.

摘要翻译： 力传递组件可在多个接合状态和其中力传递组件无效传递力的分离状态下操作。 力传递组件包括具有环形径向内部和外部活塞区域的主活塞组件，通过施加流体压力来改变可由力传递组件传递的力的大小。 力传递组件还包括具有径向内部和外部活塞区域的次级活塞组件，其中施加流体压力以改变可由力传递组件传递的力的大小。 在本发明的一个实施例中，次级活塞组件包括两个单独的活塞。 在本发明实施例的另一个实施例中，次级活塞组件包括具有环形径向内部，径向外部和中间活塞区域的单个活塞，其中施加流体压力。

公开(公告)号：US4907683A

公开(公告)日：1990-03-13

申请号：US237792

申请日：1988-08-29

申请人： Kirit R. Patel

发明人： Kirit R. Patel

IPC分类号： F16D55/10 ,  F16D25/0635 ,  F16D55/30 ,  F16D59/02

CPC分类号： F16D25/0635 ,  F16D55/30 ,  F16D59/02

摘要： A disc brake or clutch unit (10) comprising a rotor disc (12) having a fixed reaction member (21,23) on each side of the rotor disc (12) with the reaction members fixed in axially spaced relationship by connecting members (24,25) extending axially in position radially outwardly from the rotor disc. A pair of moveable reaction members (27,28) positioned between each side of the rotor disc (12) and one of the second fixed reaction members with the relatively moveable annular reaction members connected to each other a fixed axial distance apart by connecting members (29,30) extending axially and positioned radially outwardly from the rotor disc (12). Springs (35) are positioned between a first axially moveable reaction member (27) and a relatively fixed reaction member (23) for biasing the moveable reaction member (27) into fictional engagement with the disc (12). The fixed reaction member (23) and a moveable reaction member (28) forming an annular pressurized chamber (38) which when pressurized causes the moveable reaction members (28) to move axially away from the rotor discs to compress the springs (35) and disengage the annular axial moveable reaction members (27) from the discs (12).

公开(公告)号：US4863000A

公开(公告)日：1989-09-05

申请号：US263840

申请日：1988-10-28

申请人： Kirit R. Patel

发明人： Kirit R. Patel

IPC分类号： F16D55/00 ,  F16D55/38 ,  F16D55/40 ,  F16D59/02 ,  F16D65/12 ,  F16D65/14 ,  F16D65/84

CPC分类号： F16D55/38 ,  F16D55/40 ,  F16D59/02 ,  F16D65/123 ,  F16D65/128 ,  F16D2055/0058 ,  F16D2121/12

摘要： A disc brake or clutch assembly having rotatable rotor discs and non-rotatable discs which are movable axially into engagement. The rotatable rotor discs are secured to an annular splined mounting member which has a plurality of grooves therein to circulate cooling air. The rotor discs have a plurality of holes which enable air to flow between the rotor discs.