Abstract: A lock box door protector prevents doors to new or unoccupied homes from being scratched by realtor's lock boxes. The lock box door protector comprises a plastic sleeve or strip that fits over the doorknob and is positioned between the door and the lock box. A pocket on the lock box door protector proffers a supply of business cards to potential buyers.

Abstract: A resilient flexible pipe coupling for interconnecting two pipes of different diameters in a pressure tight manner comprises a tubular metal casing formed with a longitudinal gap and a tensioning screw device for reducing the width of the gap to tighten the coupling around the adjacent ends of the two pipes. A sealing sleeve of resilient flexible material is arranged within the casing. The sleeve has radially inwardly projecting sealing lips formed on both of its free end. The sealing lips have different radial thicknesses so as to compensate for the difference in diameters of the pipes.

Abstract: This invention relates to a support for oligonucleotide synthesis and more particularly to a necleoside-linker/polymer support composite having the general formulaP'--S'wherein P' is a polymer support which bears oxirane, aziridine or episulfide groups or which contains good leaving groups for nucleophilic displacement; and S' is a nucleoside-linker having the general formulaW--(CH.sub.2).sub.a --X--(CH.sub.2).sub.b --Y--(CH.sub.2).sub.c --Zwherein W and Z each independently comprise a nucleophile; X and Y which, independently may or may not be present, comprise groups of high hydrophilicity; and a, b, c are integers from 0 to 9, wherein a plus b plus c exceeds 6.

Abstract: A voltage regulator for flyback-type high voltage supplies having a supplementary energy storage transformer with its secondary interconnected in series with the primary of the conventional flyback transformer, a control circuit for sensing (a) the generation of the conventional flyback pulse, (b) a reference voltage, and (c) a feedback voltage signal appearing at the output of the conventional flyback transformer and a switch for selectively applying energy to the primary of the supplemental energy storage transformer. The aforesaid switch being activated whenever the feedback voltage is less than the reference voltage and said switch being activated earlier in time as the aforesaid difference becomes greater.

Abstract: An alignment adapter and support particularly adapted for use with heavy duty jacks, the adapter and support including improved means for aligning and supporting relatively heavy and/or unwieldy components, such as automotive vehicle transmissions, differentials, torque converters and other heavy and/or unwieldy components, and enabling precise alignment of such components with mating components to facilitate installation thereof.

Abstract: A wound dressing material, particularly for burns, comprises a sheet of synthetic plastics material which is permeable to water vapor and air, preferably a polyurethane produced by polymerization of an isocyanate capped polyoxyethylene polyol, without any substantial amount of water present, using a cross-linking agent which reacts with the isocyanate groups. The polyol and cross-linking agent, and preferably also an alkylene oxide surfactant, are agitated to form an aerated mix, spread on a release paper, and heated so that polymerization begins in the exposed upper surface, so as to form a sheet having a dense outer region which is impervious to liquids, a cellular region beneath the dense region, and a smooth glazed surface for application to a wound.

Abstract: In a piston actuated valve, means for determining the position of the operating piston by means of at least one insulated contact probe which is inserted through the wall of the cylinder. Two or more can be used, one in each extreme position of the piston. As the piston moves into its extreme position, contact is made with the probe and a suitable signal is sent, indicating that the piston is in that extreme position.

Abstract: A method and apparatus for evaporating and condensing moisture from a procession of prepared fruit and vegetable particles at subatmospheric pressures, to manufacture puffed, low-moisture food products.A series of stations of decreasing pressure and increasing temperature is established within the dehydrating apparatus, and the procession of food particles is led and guided by the apparatus to pass systematically from station to station of the series for dehydration treatment. As the particles advance through the series of stations of successively lower pressure, they encounter an oil temperature in each succeeding station which is higher, and a vapor head pressure which is lower, than in the preceding station. By the time leading particles have traversed all stations of the series, they have become puffed and dehydrated.

Abstract: A round tray and a blank for making the tray. The tray has a bottom panel, a plurality of intermediate panels symetrically disposed about the center of the bottom panel, and a plurality of upstanding panels to form the sides of the tray. The upstanding panels may be tilted slightly outward in a conical shape to cause the diameter of the top of the tray to be slightly larger than the diameter of the bottom of the tray. Alternate ones of the upstanding panels are positioned on the inside of the tray, and their adjacent upstanding panels have circumferentially extending glue flaps which overlap the inner panels. The total number of upstanding panels and the total number of intermediate panels are equal, with each upstanding panel being foldable relative to an intermediate panel immediately below it about a first set of fold or score lines. The intermediate panels, in turn, are folded upward from the horizontal about a second set of fold or score lines.

Abstract: A vertical thrust boring machine adapted to be positioned in the horizontal drift of a mine and to cut a tunnel extending upwardly from the drift so as to remove ore or other cuttings therefrom. The machine includes a rotary table for lifting a drill string which in turn supports the cutter head, and is characterized by drill stem sections having a spline connection on their lower ends, and a drive coupling ring associated with the rotary platform having a mating spline connection, so that when changing the length of the drill string the lowermost drill stem section can slide or float vertically relative to the rotary platform at the same time that it is being drivingly rotated.

Abstract: A drill stem especially adapted for use in a boring machine which drills upwardly, having pin and box joints on its respective ends, having a circumferential collar that is utilized for both vertical and rotational support of the drill stem section, and additionally having a spline connection on its lower end which is utilized for imparting rotating drive.

Abstract: A method and apparatus for evaporating and condensing moisture from a procession of prepared fruit and vegetable particles at subatmospheric pressures, to manufacture puffed, low-moisture food products.A series of stations of decreasing pressure and increasing temperature is established within the dehydrating apparatus, and the procession of food particles is led and guided by the apparatus to pass systematically from station to station of the series for dehydration treatment. As the particles advance through the series of stations of successively lower pressure, they encounter an oil temperature in each succeeding station which is higher, and a vapor head pressure which is lower, than in the preceding station. By the time leading particles have traversed all stations of the series, they have become puffed and dehydrated.

Abstract: A radar receiver employing digital signal processing utilizes high-speed ut buffers in the form of charge coupled devices that lower the data rate to the analog-to-digital converters so as to reduce their response requirements and, thereby, their cost while still permitting the system to achieve a high degree of range resolution.