Downhole clock spring
AssigneeV. E. Kuster Company, Inc.
InventorLance M. King
Life of this patent
Estimating the term…
Abstract
A downhole clock spring in the form of an elongate ribbon comprising means connecting one end to a mandrel for driving an escapement, means connecting the other end to a case, the ribbon spring being characterized in that the ribbon is split substantially along the length thereof.
Claims6
A downhole clock spring in the form of an elongate ribbon comprising means for connecting one end to a mandrel for driving an excapement, means for connecting the other end to a case or shell which is fixed relative to the mandrel or rotates at at different rate than the mandrel, the ribbon spring being characterized in that the ribbon is split substantially along the length thereof.
In a downhole clock of the type which includes a spring, an escapement and a spring, the improvement wherein the spring comprises an elongate ribbon comprising means for connecting one end to a mandrel for driving an escapement, means for connecting the other end to a case or shell which is fixed relative to the mandrel or rotates at at different rate than the mandrel, the ribbon spring being characterized in that the ribbon is split substantially along the length thereof.
Dependencies are inferred from the claim text.