Abstract: An apparatus is provided for suturing a perforation in a side wall of a patient's blood vessel. The apparatus includes an outer sheath having a longitudinal passage defined therethrough. The outer sheath is adapted to be inserted through the perforation in the patient's blood vessel. The apparatus includes at least a first suture point and at least a first suture thread attached to said first suture point. A carrier device is provided for carrying the first suture point in a distal direction through the longitudinal passage of the outer sheath into the patient's blood vessel and for pulling the first suture point in a proximal direction through the side wall of the patient's blood vessel. At least two such suture points and suture threads are preferably so attached to the patient's blood vessel and are then utilized to close the perforation.

Abstract: A releasable screed handle for being operatively secured to a selected screeding member to manipulate the screeding member through the various spreading and smoothing motions requisite in working concrete. The screed handle consists of an elongated handle that is pivotally affixed, at an angle of about 105.degree. from the vertical, to a lockable clamping plier that is capable of receiving and clamping a screed member of selected size and thickness.

Abstract: A toxicity testing assay wherein a test sample is prepared with electrochromic dye and a living organism of the cladoceran order or other test organisms, and the sample is irradiated with alternately blue and yellow light to excite fluorescence. The successive groups of fluorescent emissions are then viewed at 90.degree. by a photomultiplier which develops equivalent alternate count outputs, and the count output is amplified and processed to develop data indicating (1) membrane potential of cells of the living organisms and (2) the total dye fluorescence which provides indication of deleterious effects to the organisms.

Abstract: An intonation adjustment system is provided for a stringed instrument. A saddle setup tool has a plurality of selectable, distinctly spaced intonation points so that a preferred one of the selectable, distinctly spaced intonation points can be determined for each string of the instrument. Then a bridge saddle is constructed from a set of prefabricated candidate saddle segments by selecting a group of selected saddle segments making up the instrument saddle and providing the desired combination of intonation points as determined with the saddle setup tool. A pickup for an amplified instrument provides adjustable positioning of individual piezo-electric transducer elements so that relative volume outputs of the strings may also be adjusted.

Abstract: Method and apparatus for sending, receiving, and displaying custom coded textual and/or graphic data via an alphanumeric paging system wherein source data in binary form is encrypted with a designated code and then further converted to an alphanumeric code for transmission via the paging system; a paging receiver with storage capability used in combination with a computer then receives the transmitted data and downloads the alphanumeric code data for reconversion and decryption to binary data and subsequent display of the text and/or graphic data.

Abstract: A combination pool table structure consisting of pocket corner mounts and pool pockets each secured by means of a press-fit, molded nylon fastener of a type having a flat head extending a cylindrical shank axially for a pre-set length and which the forms into a tapering insert portion having one or more interfering wedge formations on the insert portion circumfery.

Abstract: A motor control system and apparatus for providing a desired three-phase voltage in the motor control system include: (1) a main transformer and components that are rated for one nominal voltage input, and (2) a commonly housed input transformer that transforms a different voltage power source to provide the nominal voltage input to the main transformer.

Abstract: An improved supported chromium oxide catalyst, a process for preparing the catalyst and a process for polymerizing olefin monomers utilizing the catalyst are provided. In accordance with the preparation process, chromium oxide and a support containing one or more of silica, titania, thoria, alumina, zirconia or aluminophosphates are combined, impregnated with a metal salt and activated. The metal salt is selected from the group consisting of alkali metal salts, alkaline earth metal salts and mixtures thereof.

Abstract: A process for extracting iron, copper, and nickel from a solution containing iron, copper, nickel, and at least one contaminent selected from the group comprising magnesium, aluminum, calcium and sodium, wherein each of said solutes is present at its respective chloride. In the process, calcium oxide or calcium hydroxide are added as a precipitating agent in incremental steps to cause incremental increases in the pH of the solution. At each increasing pH, one of the aforesaid metals will precipitate as the corresponding metal hydroxide while leaving the remaining metals in solution. The metal hydroxide precipitate is separated from the remaining solution prior to the subsequent addition of the precipitating agent.

Abstract: A hydrochloric acid acidizing composition for treating a subterranean formation penetrated by a well bore to increase the production of desired materials (e.g., hydrocarbons) therefrom that includes a corrosion inhibitor for protecting both ferrous based alloy surfaces (e.g., low alloy steel surfaces) and titanium based alloy surfaces associated with the treatment from corrosion by the acid. The corrosion inhibitor includes an effective amount of a first inhibitor component for inhibiting corrosion of ferrous based alloys, the first inhibitor component including at least one chemical reducing compound, and an effective amount of a second inhibitor component for inhibiting corrosion of titanium based alloys, the second inhibitor component including at least one source of molybdate ions such as sodium molybdate. A method of treating a subterranean formation penetrated by a well bore to increase the production of desired materials therefrom is also provided.

Abstract: An apparatus for mounting a pickup on a stringed musical instrument having a soundhole has a pickup housing which is adapted to be disposed in the soundhole of the instrument. An abutment member is connected by a threaded rod and an operator member to the pickup housing. The operator member is mounted on the rod and the abutment member so that operation of the operator member moves the abutment member along the rod into abutting engagement with the instrument when the pickup housing is disposed in the soundhole and the operator member is operated. This can form part of an electromagnetic pickup which defines a first magnetic pole beneath a first plurality of the strings of the instrument and which also defines a second magnetic pole beneath a second plurality of the strings of the instrument, wherein the second plurality is less than the first plurality.

Abstract: A nut dehulling apparatus for more effectively removing the green hull or shuck from pecans includes a housing having a housing inlet and a housing outlet. A rotatable scrubbing means and an endless conveyor belt are disposed in the housing. Further included is a means for rotating the scrubbing means and means for moving the endless conveyor belt. The endless conveyor belt includes a nut contact portion which, along with the rotatable scrubbing means, defines a nut passageway wherein the scrubbing means engage pecans. The nut passageway circumscribes approximately one-half the scrubbing means. The endless conveyor belt is located in the housing such that nuts deposited in the inlet are carried by the conveyor belt through the nut passageway into engagement with the scrubbing means. The separated nuts and hulls are then carried by the endless conveyor belt to the housing outlet. The apparatus also includes a vacuum source disposed in the housing.

Abstract: A completely implantable apparatus is provided for treatment of tissue surrounding a cavity left by surgical removal of a brain tumor. The apparatus includes an inflatable balloon constructed for placement in the cavity. A subcutaneously implantable treatment fluid receptacle is provided for receiving a transdermal injection of a treatment fluid. A catheter connects the receptacle to the inflatable balloon. Various embodiments provide for simultaneous application of heat therapy and/or radiation therapy and/or chemotherapy to the remaining tissue surrounding the cavity from which the tumor was removed.

Abstract: A container stopper formed from deformable material that includes a lower, cylindrical stopper body unitarily formed with an upper cylindrical portion that extends roll-resistant configuration beyond the periphery of the stopper body.

Abstract: A control system and method for a plurality of motors utilize one, and only one, motor drive unit that provides power to drive any one of the motors. The system and method also utilize a controller that controls which of the motors to energize. Power from the motor drive unit can be communicated to one of the motors selected by the controller, or power from a primary power source can be communicated to one or more of the motors selected by the controller. Sequencing of the motors to and from the motor drive unit and the primary power source, and between the two, is automatically controlled, such as based on how long each of the motors has been used. Accordingly, a method of controlling a plurality of motors comprises: defining a motor utilization criterion; sensing a parameter affected by the number of the motors that are operating; and sequentially starting and cumulatively operating ones of the motors selected in response to the motor utilization criterion and the sensed parameter.

Abstract: A portable cattle guard is provided which includes an assembled rectangularly shaped base member. Contained within the confines of the base member are a pair of inclined cattle ramps movably connected along their longitudinal axis to a smaller, spring biased center ramp. The base member includes a pair of hollow vertical posts having inwardly facing guide slots cut therein. Each hollow post contains a coil spring assembly fixed to support the center ramp in normally upward attitude and depressible to a flat ramp configuration to allow vehicle passage.

Abstract: A toxicity testing assay wherein a test sample is prepared with electrochromic dye such as Di-4-ANEPPS and a living organism of the cladoceran order, Daphnia Spp. or other test organisms, and the sample is irradiated with alternately blue and yellow light to excite fluorescence. The successive groups of fluorescent emissions are then viewed at 90.degree. by a photomultiplier which develops equivalent alternate count outputs, and the count output is amplified and processed to develop data indicating (1) membrane potential of cells of the living organisms and (2) the total dye fluorescence, which combined effects provides indication of deleterious effects to the organisms.

Abstract: Nonfragmenting rupture disk assemblies and methods are provided. The assemblies basically comprise an inlet rupture disk supporting member for communicating fluid pressure to said rupture disk, an outlet rupture disk supporting member including a pressure relieving fluid flow passageway therethrough, a rupture disk sealingly clamped between the inlet and outlet supporting members which forms a hinged blow-out portion that is folded into the outlet supporting member upon pressure relieving rupture and fluid flow through the ruptured disk, and catching means disposed in the outlet supporting member for catching the leading edge of the blow-out portion as it is folded into the outlet supporting member thereby preventing fragmentation of the blow-out portion.

Abstract: A hydraulic jar device for use in through-tubing drilling and fishing operations which consists of an elongate tube having an upper hammer sub, a kelly cylinder and a hydraulic cylinder with central restrictor secured therebelow. A lower sub connects to the bottom end of the hydraulic cylinder. The sliding interior components are an upper mandrel secured to an anvil sub which, in turn, is fastened to an axial plunger, all of which are slidable down within the elongate tube. A metering ring retained on the plunger interacts with the central restrictor of the hydraulic cylinder to control force effected up and down jars that occur when the mandrel strikes the hammer sub on the down stroke, and when the anvil sub strikes the hammer sub bottom on the up stroke.