Abstract:
An improved method for manufacturing a lever for an automotive door checking device and the lever produced by the method. According to the invention, the mold employed for the molding of the sliding part of the lever has a gate at one of the two longitudinal ends of the cavity wall so that the molten resin containing reinforcing fibers flows in and fills up the cavity along the longitudinally extending direction corresponding to the sliding direction of the sliding part. As a result, the reinforcing fibers embedded in the sliding part are one-dimentionally oriented to the sliding direction thereof, which provides anti-wearing property, durability and good sliding characteristics of the lever.
Abstract:
A method for the manufacture of a micromodule with surface flush connector, the metallic regions of the connector being formed on a support grid, comprises the formation of protection barriers between the regions of the connector so as to form a closed contour demarcating a molding zone around the chip, outside a standardized space reserved for the physical connections between the connector of the micromodule and an external system, to make a molding of thermohardening or thermoplastic material around the chip in this demarcated molding zone.
Abstract:
A mold for forming an elliptical elastic ring is provided and consists of a pair of plates, each having a mating cavity to form an elastic ring with same circumferential length as a circle of given diameter whereby the mold can be reduced in size in one direction for economic advantages.
Abstract:
Method for making an electrode having an axial capillary bore with an intersecting bore. An extensible tube is inserted in the axial bore and a polymerizable mixture is inserted in the intersecting bore and permitted to polymerize against the tube which is stretched to facilitate removal of the tube. The tube is selected to swell under the action of the solvent and the tube is filled with solvent.
Abstract:
A catheter is provided with an improved hub assembly. The catheter defines an end which, in turn, defines a relatively enlarged transverse dimension for the catheter wall and a thickened annular lip, when compared with an adjacent portion of the catheter. A catheter hub defines a bore portion, the bore portion in turn defining a relatively constricted portion and a relatively enlarged portion. The enlarged catheter end is positioned within the relatively enlarged portion of the bore, while the adjacent portion of the catheter is positioned within the relatively constricted portion of the hub. A rigid tubular funnel fits within the bore of the catheter. As a result of this the collapse and subsequent passage of the enlarged catheter end through the relatively constricted portion of the hub is prevented.
Abstract:
A method and composition for the in-flight encapsulation of particles such as insecticides, herbicides, molluscicides, acaricides, fungicides, nutrients, pheromones, odorants, fragrances, attractants, repellents, trace elements, plant regulants, and the like is disclosed. The composition comprises, by weight, from 1 to 40 percent of said particles, from 0.1 to 25 percent of a film-forming polymer and from 35 to 99 percent of a liquid which renders said polymers soluble or dispersible. Often, other compounds may be added to impart desirable properties such as other film-forming polymers, crosslinking agent film modifying agents, core agents, and adhesives to improve adhesion to a target. The particle may be in a true solution, suspended, or emulsified through the action of surfactants and/or emulsifying agents. The film-forming polymers include various acrylic polymers and interpolymers of alpha-beta olefinically unsaturated carboxylic acids and N-methylol acrylic amides, as set forth in U.S. Pat. No. 3,007,887. The molecular weight of the polymer generally determines whether the polymer-solvent phase is a solution, a colloidal dispersion, or an emulsion dispersion. Upon ejection from a spray apparatus and during flight through the intervening atmosphere, the solution or dispersion rapidly loses the solvent or carrier liquid component via evaporation, coacervation occurs, and a polymeric membrane forms about the particle. Control of the encapsulated particle size can be achieved through selection of the spray system and of the non-volatiles in the spray at the moment of droplet formation.
Abstract:
An improved method for the manufacture of simulated marble and onyx products is disclosed. The process comprises the steps of applying a substantially clear coating to a mold, applying a first layer of a mixture of polyester resin and filler over the coating, forming readily visible striations in the first layer of resin and filler, applying a layer of glass fibers thereover, applying a second layer of polyester resin and filler over the layer of glass fibers and permitting the various layers to completely cure so as to form the final product.
Abstract:
A process for forming capsules comprising:(i) forming a solution of wall material and core material in a solvent;(ii) admixing said solution with an immiscible liquid to form a dispersion wherein said solution is the dispersed phase and the immiscible liquid is the continuous phase;(iii) altering the solubility characteristics of the solvent for said solution to effect sequential phase separation of said core and wall materials, respectively, thereby forming capsules of core material encapsulated with wall material; and(iv) recovering said capsules.
Abstract:
Heat sensitive containers with loosely fitting circumferentially heat shrinkable sleeves are conveyed linearly while rotating, past heating means for impinging hot gas against the sleeve serially from the bottom to the top thereof to heat shrink the sleeves around the bottles; also disclosed is delivering different amounts of heat per unit height to at least two axially adjacent horizontal zones of said sleeve.
Abstract:
A process for deposition of polycrystalline silicon from the gas phase on ated carrier bodies of carbon, which comprises assembling the carrier bodies from extremely thin flexible graphite foils, heating the bodies to deposition temperature, while contacting them with a gaseous mixture containing a decomposable silicon compound and, if desired, hydrogen, and separating the deposited silicon from the carrier body, after termination of the deposition process, by mechanical means. The polycrystalline silicon can either be deposited in the form of shaped hollow bodies for use as laboratory equipment or in the semiconductor industries, or it may be processed to monocrystalline materials.