Abstract: In a microcomputer system arranged to operate with electrical power from a battery installed on a vehicle, the voltage of the power is detected to see whether it is below a predetermined value or not. When the voltage is below the predetermined value, a voltage detector produces an output signal which will be fed to a switching circuit formed by a D-type flip-flop. The D-type flip-flop is also responsive to a read instruction signal applied from the central processing unit of the microcomputer to a nonvolatile random access memory (RAM) thereof which is supplied with power from the battery all the time. With this arrangement, when voltage drop or sag is detected, the RAM is put in stand-by condition in which reading and writing operations are inhibited. In this stand-by condition of the RAM a central processing unit (CPU) of the microcomputer system is capable of operating as long as the power voltage is above the minimum operating voltage of the CPU.

Abstract: A single lighting fixture for mounting in front of a large billboard having a horizontal length approximately two times as long as its vertical length is disclosed. The lighting fixture comprises a lamp housing having a lamp positioned therein with the lamp being approximately horizontally positioned in the housing. A new and novel reflector is positioned on one side of the lamp is designed to reflect the light radiating from the lamp in such a manner that the bottom surface of the reflector is utilized to light up the approximate central portion of the billboard while the sides of the reflector are used to light triangular shaped side corners of the billboard. A refractor is positioned on the lamp housing to totally enclose the lamp with the refractor comprising in part three phase light control prism elements for stray light control.

Abstract: A method is disclosed for fabricating laminations of mica and conductive foils for generation of ions in air. A layer of mica is laminated to sheets of metallic foil using pressure sensitive adhesive as the bonding material. The foil is etched in order to form electrodes in a desired pattern. The mica-foil laminate may include an encapsulating layer or tape of pressure sensitive adhesive around the edges.

Abstract: A control circuit for an ultrasonic dental scaler, comprising a transducer driven by a frequency-controlled oscillator, is disclosed. The control circuit is operable for continuously regulating the oscillator frequency at substantially the same value as the resonant frequency of the transducer with a dental tool attached to it and for controlling the mechanical power output of the transducer. The transducer can be drivingly connected to a work tool for transmitting mechanical energy thereto. The regulation of the oscillator frequency is accomplished by simultaneously applied control signals derived from the current passing through the transducer and from the voltage across the transducer, to compensate for supply voltage variations. Moreover, the mechanical power output of the transducer is controlled such that it is reduced whenever the contact pressure of the work tool exceeds a predetermined maximum value.

Abstract: Novel 4-aminocyclohexanols are formulated into pharmaceutical compositions for analgetic purposes in mammals in need of said treatment.

Abstract: Multi-layer magnetic thin film disks comprising a synthetic resin layer on an aluminum-containing substrate and an overlying metallic magnetic layer, are liable to have pin holes in the synthetic resin layer caused by galvanic corrosion of the aluminum in the substrate. The pin holes are passivated by aluminum oxide produced therein by anodically oxidizing the aluminum of the substrate in an electrolytic bath, the electric voltage of which is well below the normal passivation voltage for aluminum.

Abstract: A lithographic printing plate is prepared from a layer of a photopolymerizable composition comprising an oleophilic macromolecular organic binder and a leachable hydrophilic ethylenically unsaturated compound by exposing the layer and then leaching the compound from the unexposed areas by treating with a suitable developing solvent, preferably water, producing an oleophilic surface. A similar plate may be prepared from a composition containing a hydrophilic binder and oleophilic leachable compound by imagewise exposure and solvent leaching producing an oleophilic surface in exposed areas and a hydrophilic surface in unexposed areas.

Abstract: A plow construction including a frame extending rearward from a tractor and swingable up and down relative to the tractor, a rear frame part being swingable with the frame and rotatable relative thereto about a forward and rearward axis, plow discs carried by the rear frame part for ground tilling engagement and movable therewith about the forward and rearward axis for inversion of the discs to reverse the ground tilling direction, and a guide wheel carried by the frame for counteracting side draft forces of the tilling wheels.

Abstract: A coin holder for removably retaining coins including a decorative backing member having an annular rim whereby the coin is retained. A locking ring is attached to the annular rim. The holding arrangement for the coins permits one to display the coin as a piece of jewelry or to be supported upright on a surface as a picture frame.

Abstract: Described herein is a sorbent element, especially useful for removing matter from a liquid system, comprising particulate sorbent material such as charcoal, ion exchange resins and silicas, substantially loosely encapsulated within a porous filter membrane such as woven polypropylene or Teflon. A particular application of the encapsulated element is in the qualitative and quantitative analysis of drugs contained in biological samples. Sorption processes utilizing the novel sorbent element are also described, as well as apparatus for performing analytical techniques utilizing the sorbent element.

Abstract: A fluid heat exchanger comprising an exterior duct and an interior duct extending longitudinally and centrally through said exterior duct, each duct having an entry end port and exit end port. The interior duct comprises a lower wall, an upper wall and two opposed sidewalls extending generally perpendicularly therebetween, and a partition having exposed corrugated surfaces centrally disposed between and extending generally parallel to the sidewalls. The corrugations of the exposed surfaces extend generally transversely of the interior duct. The exterior duct has a lower wall, an upper wall, and two opposed sidewalls extending generally perpendicularly therebetween. The sidewalls of the exterior duct extend generally parallel to the sidewalls of the interior duct and have inwardly facing corrugated surfaces. The corrugations of the sidewalls extend generally transversely of the exterior duct.

Abstract: Blends of vinyl chloride polymers containing no carboxyl groups and about 10 to about 30 percent by weight of an ethylene/vinyl alcohol copolymer containing greater than 50 mole percent of vinyl alcohol therein provided excellent barrier packaging materials.

Abstract: Thermoplastic containers are filled with materials such as particulate solids or liquids under vacuum and hermetically sealed in rapid succession by an apparatus having a means for evacuating the container, means for filling and hermetically sealing the evacuated containers while retaining the vacuum.

Abstract: Bearing material, such as an aluminum alloy, is applied and bonded to the support surface by heating the surface to 500 to 700 degrees Fahrenheit, applying the bearing material in sheet form to the surface at one edge thereof, and spreading the material across the surface by moving a zone of pressure application to the bearing material from one edge of the surface to an opposed edge so as to reduce the thickness of the bearing material and to provide a flow which continually brings fresh previously unexposed bearing material from the interior of the sheet so as to effect a molecular bond. Typical applications are to sleeve type bearings or bushings, and a preferred use of the invention is the application of bearing material to connecting rods.

Abstract: In the method wherein an alkenylation reaction product liquid obtained by the alkenylation reaction of an alkylbenzene and a C.sub.4 - C.sub.5 conjugated diene in the presence of alkali metal catalysts and containing unreacted alkylbenzene, alkali metal catalysts and organo-alkalimetal compounds is conveyed to a distillation zone at which said alkenylation reaction product liquid is separated by distillation to recover an alkenylbenzene-containing fraction and an unreacted alkylbenzene-containing fraction, the improvement which comprises adjusting the total of the concentrations of said alkali metal catalysts and organo-alkalimetal compounds in said alkenylation reaction product liquid introduced to the distillation zone so as to be 0.09 - 15 milligram atoms per kilogram of said product liquid, calculated as alkalimetal atoms, and thereafter conducting the distillation of said product liquid under conditions of non-addition of alcohols.

Abstract: A bronchodilator expectorant composition containing a sympathomimetic amine bronchodilator, the xanthine bronchodilator theophylline, guaiacol or a water soluble form thereof and a sedative.