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US 4,369,850 AGranted
High pressure fluid jet cutting and drilling apparatus
AssigneeThe Curators of the University of Missouri
InventorClark R. Barker
Life of this patent
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Abstract
A high pressure fluid jet drilling system operable to produce the same drilling effect as a rotating nozzle, but without utilizing a high pressure rotary seal or coupling. The drilling effect is obtained by mounting a non-rotating drilling nozzle within a rotatable case eccentrically with respect to the axis of rotation of the case.
Claims9
A high pressure fluid jet drilling and cutting system adapted to be connected to a source of high pressure fluid, and comprising:
- a fluid jet nozzle for ejecting a high velocity fluid jet stream;
- a non-rotating fluid supply conduit interconnecting said nozzle with said source of high pressure fluid;
- and
- eccentric drive means including a rotatable cylindrical shell surrounding said conduit attached to said nozzle and operable to move said nozzle in a general circular path without rotating said nozzle with respect to said supply conduit.
1 more element
Dependencies are inferred from the claim text.