Thermo Finnigan LLC

Adam D Bryant

George B Guckenberger

A ferrule includes a deformable portion and a rigid sleeve surrounding at least a portion of the deformable portion. The deformable portion includes between about 5% and about 50% graphite. The deformable portion further includes between about 50% and about 95% polyimide. The rigid sleeve can include a metal, such as stainless steel.

Ferrule sleeve for preventing excessive ferrule deformation causing leaks and stuck ferrules

A compression fitting includes a nut with a threaded end for receiving a threaded tube and a receiving end for holding a plunger head; and a plunger with an inner bore for receiving a capillary tube and the plunger head for engaging a ferrule positioned within the receiving end between the plunger head and the threaded tube, the plunger slidingly engaged with the nut to force the ferrule from the nut.

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Austin, TX, United States of America

Adam D Bryant