Abstract: The method of measuring analytes in biological fluids is disclosed wherein a specific binder to a given analyte is covalently immobilized onto a solid support to which a labeled analyte is pre-reacted and stabilized to form a binder-labeled analyte complex. A sample is contacted with said immobilized complex wherein an analyte in the sample, if present, competes with the labeled analyte bound to the immobilized binder for binding sites on said binder thus displacing a given amount of the labeled analyte which is directly proportional to the amount of analyte present in the sample. The affinity of the labeled analyte to the analyte's specific binder is lower than the affinity of the unlabeled analyte to the same binder.

Abstract: A packet which enables the user to attach a pair of carrying handles to a package and containing a pair of flexible cords and four plastic members each having a flat surface coated with an adhesive and provided with an adherent protective strippable plastic film thereover covering said surface, and an opposed surface, the opposed surface of each of said plastic members being provided with a raised portion having an opening therethrough for receiving an end of one of said flexible cords.

Abstract: A novel protective carrying sack for a motorcycle helmet having a generally hemispherical shape, comprising a pliable fabric body having a soft inside surface adapted to polish the surface of the helmet and an outer surface tougher than the inside surface. The fabric body generally conforms to the shape of the shell of the motorcycle helmet and has opposed side flaps which overlap at the top over the helmet to form a closure and also has at one upper end an elongated belt first loop portion. At the opposite upper end is a small second loop portion. The first loop portion is adapted to pass through the second loop portion, and the first loop portion being large enough to pass over the shoulder and under the arm of a wearer when being carried.

Abstract: A packet which enables the user to attach a pair of carrying handles to a package and containing a pair of flexible cords, four pairs of adhesive tabs having adhesive surfaces on opposed sides thereof, protective strippable flexible plastic sheets covering said surfaces and extending slightly beyond the edge of the surfaces, and four thin rigid plastic sheets, the adhesive tabs preferably being slightly thicker than the diameter of the flexible cords.

Abstract: Novel fuel cells based on the fast ion conductors, transition metal exchanged .beta."-alumina and other similar metals capable of undergoing a change in oxidation state, which are used as catalysts for the deep oxidation of hydrocarbon-type fuels.

Abstract: A system for the electrophoretic analysis of DNA fragments produced in DNA sequencing operations comprising: a source of chromophore or fluorescent tagged DNA fragments; a zone for contacting an electrophoresis gel; means for introducing said tagged DNA fragments to said zone; and photometric means for monitoring said tagged DNA fragments as they move through said gel.

Abstract: A vacuum system having a closed air flow loop for cleaning rugs and floor or other surfaces. There is a vacuum source having a suction side and a controlled air flow pressure side (exhaust side). A head assembly is adapted to ride on the rug or floor or other surface to be cleaned. At least one rotatable brush is positioned within the head assembly. The suction side of the vacuum source communicates with the head assembly to provide suction within the head assembly for picking up dirt or other materials. The air exhaust side of the vacuum source communicates with the head assembly. A turbine motor is positioned so that the air exhaust from the vacuum source impinges on and drives the turbine motor. The brush and the turbine motor are interconnected whereby the turbine motor drives the brush. The means interconnecting is at a right angle to the axis of rotation of the brush.

Abstract: A general method of assay for biological molecules using daylight fluorescent particles. The method described is applicable to assays involving immunological reagents, nucleic acids, hormones and neurotransmitters.

Abstract: The combination of a fingernail having adhered to the surface thereof and providing a smooth surface, a coating formed from a polymer of an acrylic monomer, a hydrocarbon solvent and a wax. The acrylic monomer can be acrylic or methacrylic. The solvent can be an alkane or alkene having 6 to 8 carbon atoms. The wax can be paraffin. Also included into the composition can be added an antioxidant and/or thickening agent.The novel method which comprises applying to a fingernail a liquid composition containing an acrylic monomer, a hydrocarbon solvent, and a wax, and allowing the composition to dry to form an adherent polymeric coating.The fingernail may be the natural fingernail alone, or together with an artificial fingernail extension.

Abstract: A pair of parallel bars forming part of a rectangular frame, mounted for rotation relative to two end handles and having locking pins to prevent rotation, adapted to be used for gymnastic exercises and to be carried by two ice skaters.

Abstract: The invention consists of compounds and methods for the synthesis of oligonucleotides which contain one or more free aliphatic amino groups attached to the sugar moieties of the nucleoside subunits. The synthetic method is versatile and general, permitting amino groups to be selectively placed at any position on oligonucleotides of any composition or length which is attainable by current DNA synthetic methods. Fluorescent dyes or other detectable moieties may be covalently attached to the amino groups to yield the corresponding modified oligonucleotide.

Abstract: The invention consists of compounds and methods for the synthesis of oligonucleotides which contain one or more free aliphatic amino groups attached to the sugar moieties of the nucleoside subunits. The synthetic method is versatile and general, permitting amino groups to be selectively placed at any position on oligonucleotides of any composition or length which is attainable by current DNA synthetic methods. Fluorescent dyes or other detectable moieties may be covalently attached to the amino groups to yield the corresponding modified oligonucleotide.

Abstract: A general method of assay for biological molecules using daylight fluorescent particles. The method described is applicable to assays involving immunological reagents, nucleic acids, hormones and neurotransmitters.

Abstract: A physical shape-conformable, disposable, self-sustaining sound dampening unit adapted to attach to the air exhaust of a pair of electric motors to dampen the noise produced by the same, which comprises:a body member formed of a thin imperforate film outer layer and a polymer foam inner layer lining the interior of said body member and having two inlet ports and at least one outlet port, the body having an interior pathway between the inlet ports and the outlet port, said inlet and outlet ports being disposed so that the incoming airstream impinges on an interior closed foam covered wall of said body and is made to turn at a right angle before reaching said outlet port.

Abstract: A scrubbing machine/vacuum cleaner which is carried by two spaced-apart front wheels and two spaced-apart rear wheels, having affixed to and extending from the front of the machine a cleaning head and brush assembly which is adapted to ride in proximity to, but in spaced-apart relationship from, the surface to be cleaned when all four wheels are resting on the surface to be cleaned. During actual cleaning operation, the head and brush assembly is adapted to press on the surface to be cleaned when the two rear wheels are raised from the surface to be cleaned. The front wheel assembly comprises a cross-member forming part of the frame carrying the machine, the cross-member having swivelably mounted thereto an axle. The axle carries the front wheels at its ends whereby the cleaning head is kept flat on the floor during the cleaning operation as the machine rolls over irregularities in the surface to be cleaned.

Abstract: The invention consists of compounds and methods for the synthesis of oligonucleotides which contain one or more free aliphatic amino groups attached to the sugar moieties of the nucleoside subunits. The synthetic method is versatile and general, permitting amino groups to be selectively placed at any position on oligonucleotides of any composition or length which is attainable by current DNA synthetic methods. Fluorescent dyes or other detectable moieites may be covalently attached to the amino groups to yield the corresponding modified oligonucleotide.

Abstract: In a liquid vacuum extraction system comprising a reservoir for fresh cleaning solution, means including a floor tool for applying said solution to the floor, carpet or other surface to be cleaned, vacuum means for sucking up the solution and contained dirt in an air stream from the surface being cleaned; the improvement comprising: a pair of spaced apart liquid reservoirs, each having an upper open end, a common closure sealing said upper open ends, said closure including an inlet communicating with said floor tool for return air bearing cleaning water and included dirt, and an outlet communicating with said vacuum means, said inlet communicating with a flow splitter head within the closure and positioned over said liquid reservoirs whereby all of the contained liquid is separated from the air and dropped into each of said liquid reservoirs at essentially equal rates while the air passes through to said outlet.

Abstract: An integral ring-shaped seal adapted to be carried at the end of a connector housing and provide two spaced-apart sealing portions, said two spaced-apart sealing portions being connected by a web, and said two spaced-apart sealing portions together with said web providing therebetween an opening adapted to receive a flange located in proximity to the end of the connector housing, at least one of said two spaced-apart sealing portions having a cut-out axially disposed away from said opening to provide increased resiliency and wear resistance.