An underwater transducer having both projector and hydrophone elements utilizes a new technique permitting the annular projector rings of a given piezoelectric material and resonant frequency to be tailored in diameter to accommodate various requirements, such as a need for more interior space. Where the projector rings can be expanded to the diameter of an accompanying hydrophone array, this makes possible a more compact and, in particular, a shorter structure than has been used for transducers...

An electrolyte for a bio-electric event measuring electrode combines a salt with adhesive. The adhesive serves as the vehicle for dispersing solvent to form the electrolyte in a solid or semi-solid mixture. The adhesive serves further as a structural element in holding the parts of a practical electrode together and in making the electrode adhere to a subject's skin. Such an electrolyte is combined with a mesh or otherwise foraminated patch of pliant material and a connector to form what can be ...

A method of measuring the mechanical vibration of an object comprising contacting one of the surfaces of a piezoelectric element comprising a polarization treated polyvinylidene fluoride piezoelectric film having metal thin films as electrodes deposited on both surfaces thereof with an object to be measured while covering the opposite surface of the piezoelectric element contacting with the object to be measured with a flexible sound absorbing material for avoiding interference with sound waves ...

A powered saw developed for use in orthopaedic surgery has a strip-form blade carrier projecting from a casing in which it is driven at its inner end in an orbiting manner while further towards the carrier free end the carrier is constrained to allow longitudinal translation and pivotal movement. In consequence, the free end of the carrier, and all points of a blade projecting therefrom, are also subjected to an orbital motion. By appropriate location of teeth the blade can therefore cut in any ...

A splint assembly includes an elongate body. An active fixation fastener is coupled substantially adjacent to a distal end of the elongate body. The splint assembly includes at least one flange coupled to the elongate body proximal the active fixation fastener. In one option, a stop of the at least one flange projects outside of an outer perimeter of the elongate body. In another option, the active fixation fastener is spaced from the at least one flange where the active fixation fastener and th...

An apparatus for surface treating a sample article with activated particles, comprising a reaction chamber in which a sample article to be surface processed is placed, means for introducing a reaction gas into the reaction chamber, an activation surface properly set in the reaction chamber and arranged capable of activating at least one part of the particles composing the reaction gas, and means for evacuating the used reaction gas out of the reaction chamber.

A shipping container and blank therefor are provided wherein the container is particularly suitable for accommodating a wide variety of produce. The container includes a pair of opposed upright side panels and a pair of opposed upright end panels, said pairs being interconnected by first foldlines. Major closure flaps are connected by second foldlines to the side panels and extend therefrom towards one another in a closing mode. Minor closure flaps are connected by third foldlines to the end pan...

There is disclosed, in one aspect, a composition for forming a protective barrier while disinfecting substrates such as human or animal skin. The composition comprises two gels adapted to be simultaneously applied and mixed in situ and to adhere onto the substrate. The first gel comprises an aqueous solution containing suitable amounts of a protic acid, preferably lactic acid. The second gel comprises an amount of a metal chlorite such as sodium chlorite, such that the chlorite ion concentration...

A sheetlike laminated air cathode including first and second layers having opposed major surfaces respectively exposed for contact with a liquid electrolyte and with air, the layers also having facing major surfaces, and the second layer being permeable to air but not to the liquid electrolyte; and a current collector in contact with the first layer and connectable to external electrical circuitry. The first layer is a nonwoven fibrous web impregnated with a mixture of carbon particles and a non...

A molding process of a molding compound containing an ingredient such as a binder, e.g., pitch or a thermosetting resin which generate gas before being set, is disclosed, wherein the molding compound is heated and molded under pressure according to a special temperature pattern. First, the molding compound may be preheated substantially uniformly to a temperature at which the binder melts and generates reaction gas. Next, temperature gradient in the direction of thickness of the molding is creat...