Abstract: Provided are a polyvinyl alcohol fiber having a specific higher order structure, obtained by having the orientation and arrangement of molecular chains forming the fiber which comprises a crystalline region and an amorphous region lie in specific ranges to thereby making the fiber have a break-ing temperature in hot water of at least 125.degree. C., or further at least 130.degree. C. and be excellent in abrasion resistance, while maintaining the tenacity and the modulus of the fiber at high levels; and a process for producing the same.

Abstract: The present invention provides a pump which is capable of supplying a liquid free from worn materials and other impurities resulting from pump operation. In one embodiment, the pump includes a diverting passageway for diverting flow liquid from the main discharge opening to a gap between a cylinder and a shaft, between an impeller and a bearing and also includes a passageway for discharging the diverted flow liquid containing the worn materials from the gap during operation of the pump in which the main flow liquid is suctioned into the cavity of the pump and discharged through a main discharge opening.

Abstract: An improved pediatric device for administering intravenous medications and fluids is provided which maintains an infant or toddler's hand, arm, leg or foot in a stationary position to prevent the child from inadvertently dislodging the needle from the vein during sudden movement. The device comprises an anatomically correct age and weight appropriate visco-elastic support molded to conform to the natural contours of the child, said support providing sufficient weight to keep the extremity immobile. The mold is covered with a disposable sleeve-like covering which provides a soft, clean, non-allergenic surface to protect the sensitive skin of an infant or child. The device is affixed to the child with a continuous sleeve of flexible material providing an elongated tubular form for completely securing the limb. The rectangular fabric sleeve has a smooth, moisture absorbing inner surface and is secured by fabric contact engaging means, e.g. Velcro.RTM. fasteners along each edge of the sleeve.

Abstract: The present invention comprises an assembly including a hollow polyolefin sphere (1) containing a eutectic cooling mixture which is maintained at a temperature of about -20.degree. C. The filled sphere functions to accumulate negative kilocalories and is manipulated by means of an isothermal plastic handle or sleeve in order to apply the sphere to the epidermis. The application of the cold sphere to the epidermis produces vasoconstrictive and vasodilative effects which are beneficial to the maintenance of the epidermal tissues of the skin being massaged. The cryogenic massage can be completed with the application of nutritive substances for the epidermis. The invention can also be used to relieve local aches.

Abstract: Grinding with known grinders such as corner, belt or vibratory grinders poses insoluble problems, such as the grinding of inner edges set at an angle to each other for example in retainer strips of window and door glasses. A portable grinder has thus been developed in which the grinding or sanding tool (3, 20, 30) effects an oscillatory movement which, unlike in the state of the art, is effected around a fixed axis of the apparatus (29) with a minimum pivoting angle, preferably between 0.5.degree. and with a high pivoting frequency of between ten thousand and twenty five thousand vibrations per minute. This different oscillation movement makes it possible to provide the grinding or sending tool with almost any shape. Furthermore, grinding does not inevitably have to be made with the transverse surface of the tool (3), in particular the perpendicular surface, in relation to the diametrical axis (29) but it is also possible to use a surface which is almost parallel to the first or is even arched.

Abstract: A one-piece, molded plastic spring clip, which is substantially inverted U-shape in cross-section, has a bight portion including an opening receiving a screw threaded fastener to attach the clip to the rear surface of a lamp holder so that the screw threaded fastener does not extend from the clip through a headed flange portion of a lamp holder to provide a liquid conduit which could potentially short the lamp. The clip is provided with legs extending from either side of the bight and each leg has a pair of spaced, parallel wing portions extending outwardly from its associated leg to expand when inserted through the mounting plate. The wing portions provide vertical shoulders to seat the lamp holder on a vertical support in conjunction with a compressible coil spring provided on the opposite side of the mounting panel or vertical support between the headed flange and support to exert pressure on the clip shoulders against the rear of the mounting panel.

Abstract: Latching members made of single strips of resilient material which can be removably attached to the rim of a conventional metal garbage can receptacle at spaced locations along the rim. The resilient strips are bent in a substantially U-shaped configuration to form clips having a substantially arcuate or cylindrical bight portion with an entranceway or mouth whose width is less than the diameter of the bight so that it can be snapped over the rim of a garbage can lid. One of the U-shaped resilient strips can pivot on the lid rim so that one leg can be positioned beneath the lip or upper beaded portion of the can to preclude removal of the lid from the can when used in combination with the other, resilient clips mounted on the lower beaded portion of the garbage can lid, with a leg beneath the can bead.

Abstract: This invention provides an ethylene-vinyl alcohol copolymer composition having specific flow characteristics in the relationship between the heating time and the extrusion rate measured with a capillary rheometer (Koka Flow Tester), and a multilayered structure utilizing the same.From the EVOH composition according to the present invention, can be obtained a molded article, particularly a multilayered structure, having an excellent appearance; more particularly, in a continuous melt molding operation over a long period, a molded article, particularly a multilayered structure, having an excellent appearance can always be obtained without worsening the appearance with running time.

Abstract: A stacked OPO is disclosed wherein two or more optically nonlinear media, such as crystals, are coaxilly disposed in a single resonator. Incident radiation is coupled into the resonator, and causes parametric oscillations of the two crystals. The two crystals are independently tuned, such as by angular orientation, to produce distinct components of secondary radiation. A first one of the crystals is disposed nearer to the source of incident radiation, and a second one of the crystals is disposed nearer to the output coupler of the resonator. This causes the first crystal to experience a greater effective gain. Furthermore, the secondary radiation from the first crystal will tend to dominate and "seed" the secondary radiation from the second crystal, when their bandwidths are narrowly separated.

Abstract: An offset strip fin for use in compact automotive heat exchangers is disclosed. The offset strip fin has multiple transverse rows of corrugations extending in the axial direction wherein the corrugations in adjacent rows overlap in order that the oil boundary layer is continually re-started. The fin dimensions have been optimized in order to achieve superior ratio of heat transfer to pressure drop along the axial direction. In one aspect, an compact concentric tube heat exchanger has an offset strip fin located in an annular fluid flow passageway located between a pair of concentric tubes. The preferred range of lanced lengths is determined to be between 0.035" to 0.075" for periodically developed flow. Maintaining the lanced length in the regime of periodically developed flow is advantageous in that it gives a higher heat transfer coefficient than is achievable with fully developed flow.

Abstract: A contour measuring apparatus and method of using the apparatus is disclosed to measure the three-dimensional contour of a surface. A multi-point light source directs a plurality of light beams onto the surface to be measured. The light beams are reflected through a lens onto a photodetector to produce electro-optically measurable optical images. A structure is provided to determine the local radius of curvature of the surface at each desired point of incidence of individual light beams and the three-dimensional surface contour of the surface being measured. A calibration device is provided to reduce instrument errors of the apparatus. The calibration device includes a calibration surface with a known contour to be positioned in substitution of the surface being measured.

Abstract: An earring is provided, that is simple to wear and is designed to minimize potential loss of the earring by inadvertent falling off. The earring is also designed to minimize pain to the earlobe of the wearer, even when the accessory that forms a portion of the earring becomes quite large. The earring of the invention includes a body portion adapted to be inserted into the external opening of a human ear; a connector for affixing an ornamental accessory to the earring, which is attached at an upper end to the main body portion; a hook-like element attached to the lower end of the connector, adapted to be releasably clamped to the rear side of the ear; and an accessory mounted at an ornamental location on the connector.

Abstract: Provided are multilayered structures comprising at least 2 layers of a layer which comprises a resin composition comprising:(A) a thermoplastic resin,(B) a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%, and(C) a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 68 to 98 mol % and a saponification degree of vinyl acetate component of at least 20%, anda layer which comprises a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%.These multilayered structures have excellent gas barrier properties and resistance to intralayer delamination, and the resin composition layer thereof has neat appearance.

Abstract: An invertible filter centrifuge is provided comprising a rotary drum which is mounted in a cantilever manner in a housing and has radial passages for filtrate, a lid which is axially displaceable relative to the drum and closes the free front side of the latter, a filler opening on the lid for suspension to be filtered, and filler pipe which, on the one hand, is secured to the housing and, on the other hand, penetrates the filler opening, the outlet end of the filler pipe being located inside the drum during the centrifuging operation, characterized in that for varying the pressure in the drum (16), the filler pipe (26) is connectable to a pressurization or depressurization source (44) and is sealed by a combined rotary and sliding seal (45, 46, 47, 53) on said lid (25).

Abstract: In a trophy having a figurine mounted on a support base, an adapter or ferrule permits ready assembly and inter-change of the figurine. The adapter is mounted in a bore of the support base. The adapter has a tubular wall defining a central passage which axially receives a threaded rod of the figurine. One or more resilient, deformable gripping fingers is formed integrally with the tubular wall and extends into the central passage. Each gripping finger has an associated slot extending through the tubular wall. A first portion of each gripping finger is outwardly displaceable by the threaded rod through its associated slot, while a second portion of each gripping finger projects inwardly of the passage to grippingly engage the threaded rod. The gripping fingers are severable from the adapter by a twisting force applied to the threaded rod received in the central passage for ready release of the threaded rod from the adapter. The adapter can be replaced for mounting a different figurine on the support base.

Abstract: A catheter is provided which can be safely implanted in the living body for extended periods of time. At least that portion of the catheter which contacts the tissue comprises a cuff of porous material which is made of a vinyl alcohol polymer to which, preferably, collagen has been chemically grafted.

Abstract: A double containment pipe joint assembly is provided with an inner pipe and an outer or containment pipe secured to the joint assembly in concentric relation. The pipe joint assembly includes a first and second fitting coupled together to present end surfaces which can be secured to a length of a primary (inner) and containment (outer) pipe at intervals along the pipeline wherein sections of the pipeline can be removed and repaired without the necessity of removing the whole pipeline, while anchoring the pipes together at spaced locations along the pipeline. The arrangement further allows the pipes to be formed from different materials compatible with the pipe fittings and precludes the necessity of providing flanges on the inner and containment pipes so they can be secured in concentric relationship, lessening the chance for failure. One of the inner and outer fittings has two sections (either separate or cast in one piece) which are secured in mirror-image relation to a ring on the other section.

Abstract: In a method and a multiple-spindle automatic lathe for machining both sides of workpieces, in order to increase the number of spindle positions available for machining the workpieces, it is suggested that the spindle drum be indexed in single steps, that the feeding of raw workpieces, the removal of finished workpieces and the changeover of half-finished workpieces be carried out in a single spindle position of the spindle drum and that the feeding of raw workpieces and the removal of finished workpieces occur alternately after each drum indexing.

Abstract: Provided are resin compositions comprising:(A) 60 to 95% by weight of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 65 mol % and a saponification degree of vinyl acetate component of at least 96%,(B) 4.5 to 39.5% by weight of an ethylene-vinyl acetate copolymer having an ethylene content of 60 to 98 mol %, and(C) at least 0.5% by weight of a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 68 to 98 mol % and a saponification degree of vinyl acetate component of at least 20%, the incorporation ratio of (C) based on the sum of (B) and(C) being not more than 38% by weight.The resin compositions of the present invention have markedly improved flexibility without deteriorating transparency and gas barrier properties as compared with conventional saponified products of ethylene-vinyl acetate copolymers.

Abstract: A safety box having a cover slidably receiving a tray. Vertical and horizontal rails are provided on the interior of the sidewalls of the cover which cooperate with laterally extending lugs on the sidewalls of the tray to preclude movement of the tray relative to the cover unless the cover is bowed by utilizing a vertical force to it to flare the vertical rails away from the lugs, enabling the tray to slide relative to the cover without interference of the lugs with the vertical rails. The horizontal rails contact the lugs and retard sliding movement of the tray relative to the cover when the box is opened to keep the tray and cover assembled. Lateral flanges are also provided on the cover for frictional engagement with the bottom of a track on the tray to impede flexing of the cover unless a substantial force is applied to the cover.