Abstract: An improved surfactant system comprising a mixture of a non-ionic detergent, a tertiary amine oxide or amphoteric detergent, and a quaternary ammonium halide. The surfactant system of the invention is combined with other ingredients to yield 14 different commercially useful cleaners. Each of these cleaners has improved detergent properties compared with prior art cleaners.

Abstract: Apparatus and method for transmission of laser radiation in the infrared portion of the spectrum. A 10.6 .mu.m laser beam is focused tangentially upon an inner surface of an elongated synclastic wave guide having a generally oval cross-section, and an output end of the wave guide is directed upon a target. Preservation of spatial mode coherence in the laser beam is demonstrated both theoretically and experimentally.

Abstract: A heat sensitive recording member capable of acquiring a stable color in selected regions contrasting with the background color of the coated substrate upon exposing these regions to an elevated temperature and comprising a paper or polymeric film substrate and a heat sensitive coating comprising (1) an adduct or mixture of color-forming lactones or spiropyrans with a cyclic polyketo color precursor, (2) a polymeric binder which bonds the reactants to the substrate and optionally (3) a molecular complex between a phenolic compound and an amine and/or an activator to lower the temperature of color formation.

Abstract: An improved surfactant system comprising a mixture of a non-ionic detergent, a tertiary amine oxide, and a quaternary ammonium halide. The surfactant system of the invention is combined with other ingredients to yield 14 different commercially useful cleaners. Each of these cleaners has improved detergent properties compared with prior art cleaners because of a high proportion of quaternary ammonium halide in the concentrated surfactant system used as a principal ingredient therein.

Abstract: A method for interacting Prussian blue with polyacrylonitrile in the presence of dimethylformamide to produce a polymer solid exhibiting a high degree of color fastness, levelness, and stability and having enhanced and highly useful electrical properties.

Abstract: Paper, cotton cloth, wood, fiberboard, and other cellulosic products are first treated with an organic base and then treated with a halosilane. This results in the formation of an amine/silane complex within the cellulose fibers as well as on the surface of the cellulosic product. This treatment imparts oil and water repellency, adhesive properties, and dimensional stability to cellulosic products.

Abstract: A two-layer adhesive coating having a dry, non-tacky surface convertible to a permanently adhesive surface by application of heat. A first co-reactant in an adhesive-containing base layer combines with a second co-reactant applied to the base layer to form a dry, non-tacky barrier layer comprising a molecular complex which dissociates upon heating to form a permanently adhesive surface.

Abstract: A one-peice garment adapted to cover the clothing of a wearer during emergency automobile repairs on the highway, and in other situations where a high degree of wearer visibility is desirable. The fabric of the garment is impregnated with a luminescent orange dye and is thin enough to permit compact storage of the garment in a tool chest prior to use.

Abstract: Apparatus and method for synthesizing laser light characterized by a plurality of discrete wavelengths, without competition among different wavelengths. A preferred embodiment of the invention includes a laser resonator having an optical cavity bounded by a first, reflective end plate; a gas-filled chamber having a pair of Brewster windows, within the optical cavity; and a Brewster angle Pockels cell between one Brewster window and the partially reflective end plate. The laser resonator generates red, blue and green laser light simultaneously and the Pockels cell transmits red, blue and green light successively, at a rate of at least 30 cycles per second, so that the resulting laser beam appears white in color.

Abstract: A flat, water-remoistenable, adhesive-coated paper having superior resistance to curling ordinarily accompanying changes in atmospheric humidity. A powdered adhesive is mixed with a solution of triethanolamine plasticizer in toluene and methanol to form a dispersion in which outer surface portions of the adhesive particles are plasticized. When the dispersion is applied to paper and solvent evaporated, the resulting coating comprises a multiplicity of sintered adhesive particles having plasticized outer surface portions joined to one another and to the paper.

Abstract: A heat-sensitive coating adapted to acquire a stable color contrasting with the background color in selected regions that are heated to an elevated temperature. The coating comprises (1) a piperidine derivative substituted in the 4 position with an aromatic group and a hydroxyl group or a hydrogen atom, (2) a cyclic polyketo compound reactive with the piperidine derivative to form a dye, and (3) a polymeric binder for binding the reactants to a substrate.

Abstract: A wind-powered device having a pair of flaps affixed to a rotatable axle which is coupled to a cable. The device is suitable for use in gusty winds prevailing at ground level, thereby obviating high towers required for conventional wind-energy conversion systems.

Abstract: A microacoustic signal processing device for propagation of shear bulk waves in a substrate. A preferred embodiment of the device includes a substrate having opposed, polished principal and second surfaces. An input interdigital transducer supported on the principal surface includes a plurality of aluminum electrodes photoetched on the principal surface; a ZnO layer overlying the electrodes; and a conductive aluminum film overlying the ZnO layer. Shear bulk waves propagated by the input transducer are available for processing at various locations on the principal and second surfaces of the substrate.

Abstract: A thermal energy transfer device having controllably variable thermal conductance comprises a reflux heat pipe having a capillary wick therein, an evaporator and a condenser zone, a circulating supply of working fluid which is controlled by a bendable section in the heat pipe body and an external device to control the bend in the heat pipe body, thereby controlling the amount of liquid returning to the evaporator. As returning liquid condensate is trapped in the center of the deformed tube, less liquid is available for evaporation in the evaporator. This results in a low liquid level that saturates only a portion of the evaporator wick. This results in higher thermal impedance. If the heat pipe body is deformed so that all liquid is trapped in the deformed portion, no liquid is available in the evaporator and there is a high thermal impedance.

Abstract: A heat-sensitive recording composition containing normally colorless lactones or spiropyran compounds in combination with hydrogen bonded molecular complexes of phenolic compounds having a dissociation temperature ranging from 50.degree. to 220.degree. C. The composition of the invention is less sensitive to pressure and less susceptible to background staining, image flooding, moisture sensitivity, odor, railroading and burnout problems as compared with compositions in which phenolic compounds are not complexed.

Abstract: An identification system including a transmitter, a receiver, a decoding subsystem, and a passive transponder identifier. One passive transponder identifier of the invention is a surface acoustic wave device provided with pad means for applying and removing pressure on a substrate of the device at preselected locations. A second identifier of the invention is a microacoustic shear bulk wave device. The passive transponder identifiers are programmed to produce a characteristic coded electronic reply in response to an electromagnetic signal interrogation.

Abstract: A heat reactive recording composition capable of acquiring a stable color in selected regions contrasting with the background color of the sheet upon exposing these regions to an elevated temperature and comprising a paper or polymeric film substrate and a coating comprising (1) an N-substituted condensation product of a heterocyclic diimino compound and an aromatic aldehyde and (2) a cyclic polyketo compound reactive with amines and amides at elevated temperatures to form a color.

Abstract: Apparatus and method for determination of residual stress in crystalline substances. An X-ray source is focused at two different, preselected angles with respect to a surface of a substance, and X-ray diffraction peaks are located with a single position-sensitive X-ray detector. The apparatus has positioning probes affixed to a base for maintaining the base in fixed relationship with the substance, and an arcuate glide channel formed in the base for controlled angular shifting of the X-ray source and detector. Residual stresses are determined more quickly than with prior art methods and apparatus having comparable precision because only a single detector is used, and because the detector locates diffraction peaks without time-consuming diffractometer shifting.

Abstract: A marksmanship target supported by a moveable support arm, with a shock absorber interposed between the target and support arm. The shock absorber includes eight thin, resilient ribs extending from a circular hub mounted on the support arm to a marginal edge of the target, and integrally formed with the target.

Abstract: An improved detergent mixture for cleaning hard surfaces comprising a mixture of a non-ionic detergent, a tertiary amine oxide, and a quaternary dimethyl ammonium halide. The mixture having a particular combination of ingredient concentrations described exhibits improved detergency compared with compositions containing only one or two of these ingredients at equivalent concentrations.