Abstract: A non-destructive testing method and apparatus for determining the microstructure of ferrous metal objects, such as cast iron pipe. A sonic wave is induced into the metal object by magnetostriction. A sensor assembly captures the acoustic energy induced in the metal object and sends a signal output to signal processing electronics. The electronics amplify the signal. The amplified signal is then captured by the data acquisition system and analyzed by the data analysis system. The data analysis system may calculate the energy of the acoustic wave or calculate the time from the initial induction of the sonic wave to the Villari reversal point to determine nodularity of the metal object.

Abstract: A one-piece medical tube holder apparatus which fastens securely about a medical tube through straightforward interlocking joining of male/female ends, with means for attaching a harness assembly, and an optional notch for securing an auxiliary medical tube, the holder being releasable by deliberate action laterally of the male/female ends.

Abstract: A method and apparatus for delivery of medicaments to oral tissues is provided. The apparatus operates on the principle of a vacuum pump such that medicaments are essentially sucked into spaces within the dental tissue upon reversal of pressure from negative to positive pressure. The apparatus comprises a resilient plastic material forming a frontal buccal shield, and dental trays for upper and lower dental arches. The device is operated by moving the jaw in a chewing motion after placing medicaments in the upper and lower trays.

Abstract: A paving system comprising a support frame, porous material above the support frame and pavers above the porous material, suitable in certain configurations to have mirror image support frames suspendable at their inner points from the outer periphery, and fitting about a tree or other object.

Abstract: A rectovaginal surgical instrument for the repair of rectovaginal tears, incisions and fistulas, especially those associated with childbirth. The instrument includes an elongated generally cylindrically shaped member, one end being continuously curved toward a tip and the other end having a flange and optionally wing guides, curved, or post guides, for retaining and/or guiding forceps or other surgical instruments.

Abstract: A system is described for rapidly and accurately determining the topography of land masses as well as individual x,y,z coordinates of discrete targets. The system incorporates a laser altimeter, a laser scanning/steering system with sensor for receiving reflected laser beams, a global positioning system or other non-ground-based reference means, a video camera, computers, and processing software. The system, mounted to an aircraft, selectively scans or steers a pulsed laser altimeter over a swath or point on earth. A Global Positioning System (GPS) or other non-ground-based reference means records the aircraft's position, altitude, and time of position. Concurrently, a computer system records and time tags the laser's range, scanner angles, and airborne platform's roll, pitch, and heading. The processing software correlates all events and measurements using time to determine precise x,y,z coordinates of the ground/targets.

Abstract: Method for disinfecting a liquid medium or hard surface containing undesired halogen-sensitive micro-organisms by treatment with substituted N-halo derivatives of imidazolidin-4-ones having substituents at the 2 and 5 positions of the imidazolidin-4-one ring, including N-chloro, N-bromo, N,N'-dichloro, N,N'-dibromo, and N,N'-bromochloro derivatives of imidazolidin-4-ones having substituents selected from hydrogen, alkyl, alkoxy, hydroxy, phenyl, substituted phenyl, or spiro-substitution at the 2 and 5 positions on the ring. These N-halo compounds are stable, noncorrosive biocides which are resistant to direct sunlight, and are useful as disinfectants, sanitizers, and algae inhibitors.

Abstract: An electroexplosive device utilizing dielectrics and semiconductors of various configurations, which is of compact size, resistant to breakage, extremely reliable, shielded from accidental ignition resulting from stray RF signals and accidental electrostatic discharge, and the firing characteristics of which may be conveniently varied to achieve desired performance objectives.

Abstract: A valve lock assembly comprising a post member and a slide member, in which the post member is affixed to the valve stem of a valve and the side member can slide up and down around the post member, the slide member being so configured that it engages one or more of the stops on the valve to prevent rotation of the valve handle between the stops but, when slid upwardly, disengages from the stop and permits rotation of the valve handle.

Abstract: Substituted N-halo derivatives of imidazolidin-4-ones having substituents at the 2 and 5 positions of the imidazolidin-4-one ring are described. More particularly, there are described N-chloro, N-bromo, N,N'-dichloro, N,N'-dibromo, and N,N'-bromochloro derivatives of imidazolidin-4-ones having substituents selected from hydrogen, alkyl, alkoxy, hydroxy, phenyl, substituted phenyl, or spiro-substitution at the 2 and 5 positions on the ring. These N-halo compounds are stable, noncorrosive biocides which are resistant to direct sunlight, and are useful as disinfectants, sanitizers, and algae inhibitors.

Abstract: A check valve having a plate comprising a sheet material body with at least one hinge lug for mounting the plate on a hinge and a valve face for engaging, in use, a valve seat of the valve.

Abstract: A method for inspecting, detecting and distinguishing sides of fabrics by reflecting light off the fabric and measuring the intensities relatively or absolutely, of such reflected light and comparing such measurements with pre-determined calibrations or other appropriate standards of comparison, so that the fabric can be properly oriented for sewing like sides to like sides, relying on different light reflecting characteristics of the two sides of the fabric.

Abstract: A housing for a multi-function appliance designed to house, at a minimum, a natural or bottled gas-fired water heating device, an air heating device, an air cooling device, a fan section, and control components, adaptable to provide flexibility in dealing with various venting problems, arranged to facilitate servicing access from the front thereof, and constructed of a relatively small number of different panels, struts, and other parts.

Abstract: An apparatus in a combination of a game apparatus and educational device, comprising three major components, central housing, and left and right housings attached to it, and containing movable elements inside of the device, such as balls and dice, for which one attempts to get certain of the movable elements into positions within the left and right housings via various channels and apertures.

Abstract: A method for the rapid removal of the peelings or outer coverings from certain food products with minimal loss of or damage to the other portions thereof, by a thermal shock treatment comprising a brief exposure of said products simultaneously to high intensity radiant heat from a vessel and high temperature, low pressure superheated steam or other fluid or gaseous medium inside the vessel.