摘要:
A heater attachment for an evaporative cooler having an axial airflow fan (10), in which the airflow is divided by an element mount (18) into an inner airflow in alignment with the hub area of the fan, and an outer airflow surrounding the inner airflow. The element mount (18) has an annular bearing wall with bearing surface, and finger sets (19) rotate on the bearing surface to function as shutters to obstruct the outer airflow when element (32) is energized, and by reducing total airflow, the heated inner airflow is at a higher, more comfortable temperature.
摘要:
A valve gate manifold for an injecting machine has at least three plates in tandem with one another, the first plate being circular and having in its several die positioning rings each with an injecting nozzle, the second plate being a manifold plate having a master valve and internal passages leading to the injecting nozzles, and the third plate carrying piston/cylinder assemblies which control the injecting nozzles. The face of the first plate can lie copolanar with the platen face of the injecting machine, and the manifold can be contained in an aperture through the platen.
摘要:
An improved method and apparatus for promoting flow of a body fluid within a human limb, which has been subjected to an amputation procedure, wherein a novel distal inflatable cell having a pair of inflatable cell portions, one of which encompasses such a limb adjacent the stump end thereof and the other of which extends transversely across the stump end thereof, is utilized in a novel method of therapy to treat Lymphedema and similar fluid accumulation disorders of the extremities.
摘要:
A multistage reactor system and operating technique for converting ethene-rich olefinic feedstock to heavier hydrocarbons, particularly gasoline and distillate range products. By employing low temperature and high temperature separators, an economic recycle is provided for each stage.
摘要:
An adjustment apparatus for adjusting the pressure applied in the multiple cells of an inflatable medical garment with the pressure adjustment being achieved by a drive apparatus interconnecting adjustable pressure regulating devices, the drive apparatus and the respective pressure regulating devices including adjustment elements which permit adjustment of each pressure regulating device independently of others of the pressure regulating devices such that the drive apparatus may be utilized to adjust, in unison, multiple pressure regulating devices having selectively variable pressure differential relationship between any pair of the multiple pressure regulating devices.
摘要:
Ionizing gas gun for ultra-clean static neutralization comprises a plastic nozzle enclosing positive and negative ion discharge electrodes and means for blowing a gas, such as air or nitrogen therethrough. A trigger actuates both the release of gas and application of positive and negative high voltage to the respective discharge electrodes, including delay circuitry for suspending discontinuance of the positive high voltage to its electrode for a momentary period subsequent to discontinuance of the negative high voltage when the gas is cut off in compensation of a slight preponderance of negative ion emission otherwise effected at cut-off. Venturi ports at the nozzle tip draw air over the discharge electrodes for admixing with higher mobility nitrogen ions when nitrogen rather than air is employed as the blowing medium. A changeable filter insures cleanliness, including monitoring means to indicate clogged or ruptured filter conditions or improper installation.
摘要:
A continuous process for upgrading C.sub.3 -C.sub.4 hydrocarbon feed containing olefins to produce heavier liquid hydrocarbons comprising converting a major portion of C.sub.3 -C.sub.4 olefins in an oligomerization zone by contacting a shape selective medium pore zeolite catalyst at elevated temperature and pressure to make distillate and olefinic gasoline; fractionating the oligomerization stage effluent to provide distillate and gasoline product and a C.sub.3 -C.sub.4 intermediate stream containing isobutane and unconverted propene and butylene; and combining the C.sub.3 -C.sub.4 intermediate stream with a portion of C.sub.3 -C.sub.4 feed and further converting the combined streams in an alkylation zone to make heavier paraffinic hydrocarbons.The olefin feed may be produced by catalytically converting methanol or similar oxygenated hydrocarbons in a known process.
摘要:
Alkylate is produced by catalytically converting oxygenate feedstock, such as methanol, to lower olefins comprising dominantly C.sub.2 -C.sub.4 olefins. Ethene is separated from primary stage effluent by interstage sorption of C.sub.3 + components which may be upgraded. Isoparaffin may be alkylated with C.sub.3 -C.sub.4 olefins in a secondary stage.The improved technique comprises fractionating an olefinic feedstream containing ethene and C.sub.3 + olefinic components by contacting the olefinic feedstream in a sorption zone with a liquid hydrocarbon sorbent to selectively sorb C.sub.3 + components;wherein the sorbent is obtained by condensing C.sub.5 + aliphatic and aromatic hydrocarbon from the primary stage.
摘要:
A kit is disclosed which permits rapid assembly, disassembly and reassembly in a variety of furniture configurations. The assembly requires no tools and can be carried out at a location remote from the factory in which the kit is produced. The kit may be assembled in a variety of configurations allowing several forms of furniture to be constructed as well as a variety of children's furniture, toys, and playthings. The assembly is sufficiently simple to be carried out by the child and the kit is sufficiently flexible to permit the child to experiment and build many different configurations as the child's ingenuity may suggest. When disassembled, the parts of the kit are easily transportable.