1
Russell James P, Szur Alex J, Terrell Ross C: Process for making fluorinated ethers. Airco, Rathbun Roger M, Bopp Edmund W, Mathews H Hume, July 29, 1975: US3897502 (58 worldwide citation)

A method is disclosed for partially fluorinating an alkane or a cycloalkane polyfluoroether feedstock in the liquid phase by contacting it with molecular fluorine at a temperature of about -40.degree.C. to 0.degree.C. Degradation, polymerization, excessive fluorination or combinations of these effec ...


2
Valenta James D, Cibulka Anthony B, Drabkin Stephen H: Medical humidifier. Airco, Rathbun Roger M, Mathews H Hume, Bopp Edmund W, April 23, 1974: US3806102 (57 worldwide citation)

A humidifier for use with a medical respirator having a hot plate type of heating unit entirely separable from a water reservoir which heats the water within the reservoir. The reservoir is provided with an inlet for receiving gas from the respirator and an outlet for delivering heated humidified ga ...


3
Cibulka Anthony B: Method and apparatus for triggering the inspiratory phase of a respirator. Airco, Rathbun Roger M, Bopp Edmund W, Mathews H Hume, July 29, 1975: US3896800 (49 worldwide citation)

A method and apparatus are herein disclosed for triggering the inspiratory phase of a respirator in response to an inhalation attempt on the part of a patient being 'breathed.' The invention is used on respirators where a positive end expiratory pressure is provided the patient at the end of his exh ...


4
Estes James W: Ignition and flame stabilization system for coal-air furnace. Airco, Rae David L, Mathews H Hume, Bopp Edmund W, July 15, 1975: US3894834 (31 worldwide citation)

A steam generating furnace with multiple coal-air burners has a corresponding number of supplemental oxygen-fuel burners, each mounted centrally of a coal-air burner respectively, for directing an oxy-fuel flame into a combustible mixture of powdered coal and air; the oxy-fuel burners are controlled ...


5
Moen Walter B, Spies George R: Pressure control system for cryogenic fluids. Airco, Rae David L, Mathews H Hume, Bopp Edmund W, August 6, 1974: US3827246 (25 worldwide citation)

Heat for maintaining operating pressure in a single phase cryogenic fluid at or above the critical pressure is provided by controllably circulating a portion of the warmed delivery fluid in heat exchange with the storage fluid. The circulated delivery fluid is reheated and recombined with the remain ...


6
Linhardt Hans D, Carter Thomas A, Kirk James A: Air cycle food freezing system and method. Airco, Rathbun Roger M, Bopp Edmund W, Mathews H Hume, March 4, 1975: US3868827 (24 worldwide citation)

A refrigeration system for freezing of food products, utilizing air as the working fluid. The system includes a freezing chamber having entrance and exit ports for passing a food product therethrough. A refrigerant supply main provides low temperature air to the freezer chamber, which air exits from ...


7
Gregory Eric, Marancik William G, Shattes Walter J: Flashlamp with improved combustion foil and method of making same. Airco, Fitzpatrick Donald J, Bopp Edmund W, Mathews H Hume, November 12, 1974: US3847650 (24 worldwide citation)

A photo flashlamp containing an improved metallic combustible foil composite comprising a layer of a pyrophoric metal, for example, yttrium, interposed between two layers of nonpyrophoric metal, wherein nonpyrophoric metals such as aluminum, hafnium, magnesium or the like may be used. A method for m ...


8
Cibulka Anthony B: Respirator flow curve modifier. Airco, Rathbun Roger M, Bopp Edmund W, Mathews H Hume, December 10, 1974: US3853147 (24 worldwide citation)

A device for modifying the normally square-pulse characteristics of the flow curve of square-wave respirators to provide a gradual development to maximum flow. The device includes a chamber having a movable wall mounted for displacement therein, a gas flow passage being defined between the wall and ...


9
Hoerz Richard D, Propp Donald J: Audible signal generating apparatus having selectively controlled audible output. Airco, Rathbun Roger M, Bopp Edmund W, Mathews H Hume, March 18, 1975: US3872470 (22 worldwide citation)

A ceramic crystal transducer is connected to a direct current supply in series with a pair of transistors. A pair of independent multivibrator oscillators are connected, each controlling one of the transistors. Each oscillator establishes a rectangular wave and is provided with a continuously adjust ...


10
Marek Ronald W, Yudichak William T: Foam carbonization and resulting foam structures. Airco, Bopp Edmund W, Mathews H Hume, November 25, 1975: US3922334 (22 worldwide citation)

A fully reticulated polyurethane foam is treated with a solution of a phenolic resin and coal-tar pitch in a tetrahydrofuran solvent. The resin and pitch are absorbed into the polyurethane strands, thereby becoming an integral part of such strands. The structure is subsequently heat-treated through ...