Remotely controlled apparatus for downhole applications, components for such apparatus, remote status indication devices for such apparatus, and related methods

摘要: An expandable apparatus may comprise a tubular body, valve piston and push sleeve. The body fluid passageway extending therethrough, the be disposed within configured to move axially responsive pressure of drilling passing through selectively control flow into an annular chamber. sleeve coupled at least one feature, chamber feature. Additionally, generate signal indicating extension