Joints and connections – Axially split or separable member
Patent
1988-03-31
1989-07-25
Reese, Randolph A.
Joints and connections
Axially split or separable member
403289, 166 72, F16B 100, E21B 1702
Patent
active
048507369
ABSTRACT:
In accordance with the present invention there is provided a device for use in servicing an oil well rod pump. The pump has a rod string with a rod clamp secured thereto above the polish rod. The device comprises an elongated, weight-supporting polish rod-receiving cylindrical sleeve. The inner diameter of the sleeve is greater than the diameter of the polish rod. A slot in the side of the sleeve extends along its length. The width of the slot is slightly greater than the diameter of the polish rod. A flange extends outwardly from each side of the slot. Releasable securing means extend between the flanges to secure the sleeve in position about the polish rod. The sleeve is to receive, resting thereon when in position about the polish rod, the rod clamp to permit servicing work on the pump above the rod clamp. In using the device according to the present invention, it is no longer necessary to unclamp and reposition the lower rod clamp on the polish rod, and then reposition it after servicing of the pump equipment. Scarring of the working part of the polish rod due to clamping is avoided. At the same time, the task of readying an oil well pump for servicing is greatly simplified and the time for so doing is greatly reduced.
REFERENCES:
patent: 573491 (1896-12-01), Smith
patent: 3633246 (1972-01-01), Kirpatrick
patent: 4286656 (1981-09-01), Felder
patent: 4502189 (1985-03-01), Sieberkrob et al.
patent: 4541145 (1985-09-01), Sato et al.
Bordas Carol
Reese Randolph A.
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