Abstract:
This invention provides an open cycle refrigeration system wherein ammonia, supplied from a refillable storage tank, is employed as a refrigerant, and after serving as the refrigerant, is disposed of by dissociation and combustion. HaVing substantially no moving parts and requiring no source of power when in operation, the refrigeration system of the invention has low initial cost and requires little maintenance. As a result of these features, the refrigeration system is especially useful in providing in-transit refrigeration for perishable or frozen commodities.
Abstract:
Solid homopolymer of perfluoro-2-butyne is prepared by polymerizing perfluoro-2-butyne using small amounts of trifluoromethyl hypofluorite as initiator.
Abstract:
The liquid phase thermally induced cyclodehydration of N-( omega -hydroxyalkyl) alkyl and aryl carboxylamides to afford cyclic iminoethers is catalyzed by compounds of manganese, cobalt, molybdenum, tungsten and the rate earth metals.
Abstract:
AQUEOUS DILATANT SOLUTIONS CONTAINING 0.5 TO 6.0 WEIGHT PERCENT ALKALI METAL BORATE AND 0.5 TO 6.0 WEIGHT PERCENT WATER-SOLUBLE POLYVINYL ALCOHOL CAN BE RAPIDLY APPLIED TO THE SURFACE OF AIRCRAFT RUNWAYS TO PROVIDE A SPARK AND FIRE-RETARDANT CUSHION FOR EMERGENCY AIRCRAFT LANDINGS. THE DILATANT SOLUTION IS PREFERABLY FORMED BY MIXING TWO AQUEOUS SYSTEMS, ONE CONTAINING BORATE AND THE OTHER PVA. THE MIXING IS PREFERABLY EFFECTED BY SPRAYING CONVERGING STREAMS OF THE TWO SOLUTIONS.
Abstract:
A motor vehicle shoulder strap retracting device for use with an inertia responsive belt element locking device. The retracting device relieves the vehicle occupant of the continuous retracting force heretofore applied by the shoulder strap to the occupant.
Abstract:
A seat belt buckle assembly including a housing in which a latch bar is movably disposed to be moved by a push button between a latched position for engaging a tongue and a release position for allowing the tongue to be removed from the housing. A leaf type spring normally urges the latch bar upwardly toward the latched position. The novelty resides in the utilization of a cup-shaped diaphragm disposed in sealing engagement with the bottom wall of the housing to define a chamber with the bottom wall of the housing. The bottom wall of the housing has a hole therein and the diaphragm includes a flap which normally is disposed over the hole for sealing the opening in response to a sudden rise in pressure in the chamber which in turn results from the application of a predetermined force urging the latch bar to the release position but which allows flow through the opening during the application of a lesser force urging the latch bar to the release position whereby the buckle assembly is prevented from unlatching or releasing the tongue in response to sudden impact or like force.
Abstract:
N-methylol and N-halomethyl derivatives of polyfluoroisoalkoxyalkanamides, and their substituted ammonium salts characterized in that an ether oxygen links a fluorinated carbon atom attached to two fluoroalkyl groups and at least one CF2- group. These compounds are useful as water and oil repellency agents.
Abstract:
A method and apparatus for filling motor vehicle gas bags. A gas-filled cylinder is provided with an inlet pressure sensitive rupture disc and a dislodgeable outlet plug. The inlet disc is in communication with a combustible material. The material is fired, yielding a gaseous product. The outlet plug is dislodged before, concurrently or subsequent to the rupture of the inlet disc. The liberated gas flows to a diffuser, about which a motor vehicle gas bag is disposed, whereby the gas bag is filled.
Abstract:
Articles are manufactured from textile material composed of filaments prepared from blended fiber-forming polymers having different chemical properties, at least one of the fiber-forming polymers being dispersed as fibrils in a lower melting point polymeric matrix. The article is produced by heating the material to a temperature above the melting point of the matrix-forming polymer but below the melting point of the dispersed fibrils to shrink said article thereby decreasing the porosity thereof and afterwards forming the heated material into a three-dimensional shape using vacuum or other fluid pressure.
Abstract:
The invention relates to an improvement in the liquid phase catalytic oxidation of cyclohexane to cyclohexanone and cyclohexanol at elevated temperatures and superatmospheric pressures using an oxygen containing gas, such as oxygen or air, while maintaining substantially anhydrous conditions by removal of water during the oxidation reaction. The improvement resides in the use of more than one part and less than about six parts by weight of benzene per part of cyclohexane in the oxidation feedstock. Significantly increased yields of the above oxidation products, particularly at high cyclohexane oxidation conversion levels, are realized by utilizing this process.