公开(公告)号：US3953037A

公开(公告)日：1976-04-27

申请号：US529751

申请日：1974-12-05

Applicant: Mason C. Winfield, Jr.

Inventor： Mason C. Winfield, Jr.

IPC: E21B33/08 ,  F04B53/16 ,  F16J3/04 ,  F16J15/00 ,  F16J15/52 ,  F16J15/18

CPC classification number: F16J15/004 ,  E21B33/08 ,  F04B53/164 ,  F16J15/52 ,  F16J3/041 ,  F16J3/048

Abstract: An extensible polished rod protector having alternating inner and outer diameter portions defining adjacent convolutions, and annular retainer members in the form of radial, reinforcing support plates within the outer diameter portions for preventing radially inward collapsing thereof upon extension of the protector and also preventing contact between the inner diameter portions and the polished rod. The polished rod passes through a liquid receiving container having means for trapping oil accummulated therein while permitting the egress of water therefrom. A floating rod wiper assembly in the container maintains wiping engagement with the reciprocating rod while accommodating lateral shifting and wobbling thereof.

Abstract translation: 具有限定相邻圈的交替的内径和外径部分的可延伸的抛光棒保护器，以及在外径部分内具有径向加强支撑板形式的环形保持器构件，用于防止在保护器延伸时径向向内塌缩，并且还防止 内径部分和抛光棒。 抛光棒通过具有用于捕集其中积聚的油的装置的液体接收容器，同时允许从其中排出水。 容器中的浮杆擦拭器组件保持与往复杆的擦拭接合，同时容纳横向移位和摆动。