Patent ID: 8920213

Claim:
An abrasive jet system comprising: an abrasive container; a nozzle assembly having a mixing cavity downstream of a fluid inlet aperture and proximate to an abrasive inlet port, wherein the fluid inlet aperture is configured to receive a fluid; and an abrasive supply conduit operably coupleable between the abrasive container and the abrasive inlet port, the abrasive supply conduit including a first interior surface portion configured to be positioned proximate to the abrasive inlet port and a second interior surface portion, different from the first interior surface portion, configured to be spaced apart from the abrasive inlet port, wherein the first interior surface portion is configured to repel a portion of the fluid upon splash back of the portion of the fluid into the supply conduit from the mixing assembly, and wherein the first interior surface portion has a different ability to repel the portion of the fluid than the second interior surface portion.