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US 9,038,656 B2Granted
Restriction engaging system
AssigneeBaker Hughes Incorporated
InventorsDavid P. Gerrard, Yang Xu
Life of this patent
Estimating the term…
Abstract
A restriction engaging system includes, a restriction engager, one or more restrictions, and at least one counter configured to permit or prevent passage of a restriction engager through one of the one or more restrictions.
Claims17
A system, comprising:
- one or more restriction engagers;
- one or more restrictions;
- and
- at least one counter configured to permit or prevent passage of a restriction engager through one of the one or more restrictions, the at least one counter configured to be responsively indexed each time one of the restriction engagers passes through the one of the one or more restrictions, the at least one counter preventing passage of an additional one of the restriction engagers after a selected number of the restriction engagers have passed the one of the one or more restrictions.
1 more element
Dependencies are inferred from the claim text.