Abstract: Disclosed is a housing for a catheter, the housing comprising: a body; a cap assembly comprising a cap and a tamper-evidence ring, wherein the cap is attached to the body and the tamper-evidence ring in an unopened configuration and is configured to be irreversibly detached from the tamper-evidence ring when the cap is removed from the body, the housing further comprising at least one anti-rotation mechanism to prevent rotation of the tamper-evidence ring upon rotation of the cap, and at least one axial retention mechanism configured to axially retain the tamper-evidence ring when irreversibly detached from the cap.

Abstract: A fired heater unit is disclosed having a radiant section having a high emissivity coating therein. The fired heater unit also includes a burner for mixing fuel and preheated air to produce flue gas to be used in heating operations within the unit, and a preheater for heating ambient air with the flue gas to produce the preheated air for use in the burner. Other process streams are heated with the flue gas in the radiant section and a convection section operatively connected to the radiant section prior to venting the flue gas to atmosphere. The fired heater unit, and associated processes, result in a reduction of NOx emissions over conventional systems and methods.

Abstract: A method for diagnosing friction systems involves the partial transfer of metallic microparticles dispersed in lubricant into a solution to be analyzed. The sample is turned alkaline, and after introduction of an electrode system, the dependence of current on an applied voltage in a given range of potentials is recorded. A determined amount of triethanolamine is added to the analyzed solution; the recording of current-voltage curve is repeated and from results of measurement the degree of wear and the technical state of the motor and of the used lubricant is estimated. The detection electrode in electrolysis is a droplet of mercury having an optimum radius between 0.05 and 0.4 mm, a renewed mercury meniscus electrode or a film mercury electrode. An exemplary apparatus for performing the method is disclosed.