Phillips Petroleum Company

Extranuclear Laboratories, Inc.

Extrel Corporation

Richard T Brackmann

Richard L Myers

Wade L Fite

Sanjai K Bijawat

Fluids entrapped in small confined within spaces of an object are analyzed by securing the object containing the confined space by epoxy to a small fitting over a notch applied on the object's surface adjacent to the confined space, the fitting being a slidable seal attached to a small tube which has a piercing device adapted to move with the small tube relative to the fitting and the object containing the confined space to puncture same through the notch, whereby the entrapped gaseous fluid in the confined space emerges into the fitting and small tube, the entire system being a sealed enclosure. Attached to the small tube is a capillary which leads to an analyzing device, such as a mass spectrometer. The small tube fitting and capillary are sufficiently small in volume and configured so that gaseous fluid from the now ruptured confined space flows in a viscous condition from the object to the analyzing device and is in contact with minimal surface area to minimize any adsorption effects which would change the contents of the fluid sample. No elastomer O-rings or other materials known for their adsorption affinities insofar as substances of interest in the contents of the fluid emerging from the confined space are used. A heated chamber may receive the object having the confined space, the small tube including the penetrating device attached thereto and the capillary tube. One valve connected to the tube is provided for purging the system and for admitting calibration gases from an appropriate gas handling system. Confined spaces of interest may be in electronic devices, glasses as well as other solids which entrap fluids that it is desired to analyze.

Method and apparatus for analyzing encapsulated vapors

Two converging molecular beams are introduced alternately into the inlet of a mass spectrometer by utilizing a chopping wheel apparatus to alternately pass the two molecular beams to the inlet of the mass spectrometer.

Dual molecular beam system

A method and apparatus for monitoring particulates which are borne by a surrounding gaseous medium, such as found in smokestacks or the like, through interception of the particulates by a hot filament having a bias potential in the range of about 100 to 1000 volts whereupon each particulate decomposes into a burst of ions which is collected by a nearby electrode at ground potential, by counting those bursts which produce a predetermined total charge and, at the same time, measuring the DC electric current produced by the bursts and other ion exchange between the hot filament and the electrode. The filament operates at a temperature level wherein infrared and visible radiations are emitted, such radiations being monitored by a phototransistor which receives the radiations. The electrical signal from the phototransistor is employed in a feedback loop whereby the power to the filament is automatically either increased or decreased, and manually regulated within limits to maintain the detected radiation level and therefore the filament temperature at a prescribed value.

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Pittsburgh, PA, United States of America

Richard T Brackmann