Abstract: A fabricated swing check valve where the valve body is in the form of a pair of tubular sections welded together in end-to-end relation. The valve seat and cage, with hinge pin hanger, are positioned in a counterbore in the inner end of one of the body sections and may be formed separately or as portions of one of the body sections. A retainer ring may be employed to hold the disc hinge pin on the hanger for the hinge pin, and the opposite ends of the valve body may be internally threaded with standard pipe threads for an economical construction.

Abstract: A percutaneous access port for providing access to a selected organ in an animal which includes a base assembly and a septum assembly. The base assembly has a fluid chamber formed in a portion thereof generally between an upper and a lower end of the base assembly with an inlet port being formed in a portion in the base assembly generally near the lower end of the base assembly. The inlet port is adapted to be connected to the selected organ to provide communication between the fluid chamber in the base assembly and the selected organ. At least one access port is formed through the upper end of the base assembly with each access port extending a distance through the base assembly and intersecting the fluid chamber to provide communication between the upper end of the base assembly and the fluid chamber. The septum assembly includes a portion which extends across each access port in the base assembly to resealably seal each access port, each access port providing resealable access to the fluid chamber.

Abstract: Monoclonal antibodies against autoimmune RNA proteins such as La/SSB, Ro/SSA, nNP, and Sm. These monoclonal antibodies which are produced by a continuous hybridoma cell line, may be used in methods for detecting the presence of selected autoimmune RNA proteins and antibodies against such proteins in biological samples, and may be incorporated into diagnostic test kits for this purpose. The monoclonal antibodies may be applied in methods for screening subjects for systemic lupus erythematosus, subacute cutaneous erythematosus, neonatal lupus, Sjogren's syndrome, complete congential heart block, and other disorders which involve the presence of antibodies against autoimmune RNA proteins.

Abstract: A swing check valve where the cage is a ring-like member supporting the disc or clapper where the disc is loaded from the downstream end of the body and held in operating position by a tubular retainer extending from the downstream end of the body. The cage and valve seat may be formed separately or as a part of the same member and the seat may be formed as a part of the valve body. The tubular retainer may be split lengthwise and compressed into the valve body for holding the cage and seat in assembled relation during shipment and handling.

Abstract: A swing check valve having the disc supported in a surrounding cage and constructed with a minimum swinging arc. The cage is designed to permit the swinging movement of the disc through approximately 90.degree. and the case is constructed to guide the disc in its final closing "floating" movement. The end portions of the hinge pin for the disc are mounted in recesses facing an abutting valve seat. In all embodiments, the disc and cage may be readily replaced for repair of the valve.

Abstract: A disc for a swing check valve where the body of the disc and the hinge pins are cast as one piece to facilitate the alignment of the hinge pins with the sealing face of the disc. The swing radius of the disc is at a minimum and a spring closure is provided.

Abstract: An oil well fluid processing system having a heater-treater and a gas separator mounted on a skid constructed in three sections that can be pinned together for transport. The heater-treater is pivotally mounted on the central section of the skid for pivotation to a position overlaying an end section that carries hydraulic actuating cylinders to raise the heater-treater to a vertical position. The gas separator is mounted on the other end section, and the gas separator and heater-treater are pre-plumbed with fluidly connectable pipe manifolds. The pipe manifold for the heater-treater has two portions that mate when the heater-treater is raised to a vertical position. Pinning of the skid sections is effected via apertured plates extending from the ends of the skid sections.

Abstract: Bales of filamentary material are separated into weighed charges of the material by disintegrating the bales in a rotating drum to produce tufts that are passed to a picking chamber wherein a toothed roll strips individual filaments from a supply roll formed from the tufts and passing the filaments to scales upon which the charges are accumulated. Each time a charge is accumulated on a scale, air is blown across the scale to discharge the scale. The charges are delivered to a magazine having a plurality of vertically stacked chambers, each chamber underlain by a movable gate, through which the charges are passed sequentially to be discharged at a fixed schedule from the lowermost chamber. Spikes mounted on the interior of the drum are shaped to loosen portions of bales entering the drum, tear tufts from such portions, and finally deposit the tufts into an air stream passing through the drum to expel the tufts.

Abstract: An article forming system for forming at least one sheet of material into an article, such as a decorative flower pot cover for example, and a novel article formed utilizing such a system. The article forming system includes a male die, a female die and a platform having a support surface and an opening extending through the support surface. The female die is disposed generally within the opening in the platform with the upper end of the female die being disposed near the support surface. The article forming system includes means for slidingly holding portions of the sheet of material generally against portions of the support surface while permitting such held portions to slide on the support surface during the forming of the article for cooperating in forming a decorative border on the decorative flower pot cover type of article which flares generally away from the flower pot object when the decorative flower pot cover article is applied to the flower pot.

Abstract: A method for producing polymeric films in which a substrate surface is contacted with a surfactant solution, comprising a liquid in which at least a first surfactant is dissolved, so that an interface is formed between the substrate surface and the surfactant solution, under conditions which promote the assembly at such interface of surfactant molecules, such assembled molecules defining a surfactant template for the film to be produced. After monomer molecules have become concentrated within the surfactant template, polymerization is effected to produce an ultrathin polymeric film dimensionally determined by the surfactant template. Such film is characterized by a polymer network disposed within a surfactant template. The method of the present invention may be used to coat the surface of an object, such as an object which is porous or has non-planar surfaces, or may be used to coat particulate matter.

Abstract: An improved drilling rig which is mounted on a trailer to be transported from one location to another. The drilling rig includes a hoist for raising and lowering equipment, the hoist including hydraulic cylinders and a pair of cables. One end of each cable is connected to a base and the opposite end of each cable forms an equipment end portion which is connectable to the equipment to be raised and lowered, a portion of each cable being moveably connectable to a portion of the hydraulic cylinders. Portions of the hydraulic cylinders are moveable to raised and lowered positions for raising and lowering the equipment end portions of the cable and the equipment connected thereto.

Abstract: A milking system for cows having a pair of parallel rows of milking stalls on an upper floor and an operator's cart adapted to move along the rows of stalls on a lower floor. An elongated opening is formed in the upper floor along the stalls through which one or more operators on the operator's cart may have access to the udder and teats of the cows to be milked. The stalls are provided with entry and exit gates; doors are provided for the elongated opening; spray bars are provided for cleaning and disinfecting the cows udders and teats; and suitable milking machines are provided for connection by the operators.

Abstract: A recombinant vector adapted for transformation of a suitable bacterial microorganism host to produce and secrete streptokinase. The recombinant vector comprises a plasmid into which a polydeoxyribonucleotide fragment from Streptococcus equisimilis H46A which codes for streptokinase synthesis and secretion has been inserted. The transformant bacterial microorganism including this recombinant plasmid vector produces streptokinase suitable for clinical fibrinolytic usage after purification.

Abstract: A heat pen comprising a first tube, a holder tube coiled with resistance wire and a metallic cylinder as a stylus. When the resistance wire is charged with electricity the metallic cylinder is heated to mark heat-sensitive recording paper. When the metallic cylinder is worn down by extensive usage, it is readily removed and replaced by a fresh metallic cylinder.