Invention Grant
- Patent Title: Stuffing box for rotating rod
- Patent Title (中): 旋转棒用填料盒
-
Application No.: US11946759Application Date: 2007-11-28
-
Publication No.: US07669650B2Publication Date: 2010-03-02
- Inventor: Bill Cayford
- Applicant: Bill Cayford
- Applicant Address: CA Lloydminster
- Assignee: Amik Oilfield Equipment & Rentals Ltd.
- Current Assignee: Amik Oilfield Equipment & Rentals Ltd.
- Current Assignee Address: CA Lloydminster
- Agency: Christensen O'Connor Johnson Kindness PLLC
- Priority: CA2568921 20061129
- Main IPC: E21B33/03
- IPC: E21B33/03

Abstract:
A stuffing box for a rotating rod includes a stationary housing and a tubular rotating inner housing. The stationary outer housing has an upper end, a lower end, an exterior surface and an inner surface defining an interior cavity. The inner housing is positioned within the interior cavity of the outer housing. The inner housing has an upper end, a lower end, an exterior surface and an inner surface defining an interior bore adapted to accommodate a rod. Bearings are disposed between the outer housing and the inner housing to facilitate rotation of the inner housing. An inner seal assembly provides a seal that prevents the migration of fluids between the inner housing and the rod. An outer seal assembly provides a seal that prevents the migration of fluids between the inner housing and the outer housing.
Public/Granted literature
- US20080122186A1 STUFFING BOX FOR ROTATING ROD Public/Granted day:2008-05-29
Information query