Patent ID: 8978444
Filing Date: 2015-03-17
Classification: B21D,B65B,B65D,G01N

Abstract:
1. An apparatus comprising: a first gas chromatograph including a fluid inlet, a fluid outlet, and a first temperature control; and a controller coupled to the first temperature control, wherein the controller includes logic to apply a first temperature profile to the first temperature control to heat, cool, or both heat and cool the first gas chromatograph; a second gas chromatograph having a fluid inlet, a fluid outlet, and a second temperature control; a third gas chromatograph having a fluid inlet, a fluid outlet, and a third temperature control; wherein the fluid outlet of the first gas chromatograph is coupled to the fluid inlets of the second and third gas chromatographs by a heart-cutting valve, wherein the second and third temperature controls are coupled to the controller, and wherein the controller includes logic to apply a second temperature profile to the second temperature control and a third temperature profile to the third temperature control to heat, cool, or both heat and cool the second and third gas chromatographs; and wherein the heart-cutting valve comprises: