Patent ID: 8286514
Filing Date: 2012-10-16
Classification: G01N

Abstract:
1. A proppant testing apparatus, comprising: a test cell body having an upper exterior surface, a lower exterior surface, and a test cavity extending through at least the upper exterior surface; an upper piston constrained to vertical reciprocation within the test cavity; a laterally-extending width bar coupled to the piston above the test cell body; and a portable piston extractor including an extractor base with an external channel for removably supporting the extractor base on the test cell body, the external channel including an upper flange and a lower flange connected by a web for removably receiving the test cell body between the upper and lower flanges, with the upper flange adjacent the upper exterior surface of the test cell body and the lower flange adjacent the lower exterior surface of the test cell body; an extractor arm movably coupled to the extractor base; and a drive mechanism configured for driving the extractor arm into vertical engagement with the width bar.