Patent ID: 7603897

Claim:
A downhole apparatus comprising: a drill collar having an outer surface for interaction with an earth formation; an extendable sample device recessed beneath said outer surface in a first position to extend beyond said outer surface to a second position toward a portion of the earth formation to be sampled; a sampling member coupled to said extendable sample device, said sampling member having a bore and a sampling end to extend to a position beyond said outer surface and said extendable sample device second position toward the portion of the earth formation to be sampled, said bore to receive at least formation fluid from the earth formation; and an adjustable device disposed adjacent said sampling end to prevent borehole contaminants from entering said sampling member; wherein said adjustable device comprises at least one of a screen, having a bore, coupled to said sampling end and a seal pad, having an aperture, coupled to said extendable sample device.