The present invention relates to the use of a gating means in combination with a spontaneous infiltration process to produce a metal matrix composite body. Particularly, a permeable mass of filler material or a preform (2) is spontaneously infiltrated by molten matrix metal (5) to form a metal matrix composite body. A gating means (3) is provided which controls or limits the areal contact between ...

The present invention relates to the formation of a metal matrix composite body by the spontaneous infiltration of a molten matrix metal (6) into a three-dimensionally interconnected material (8) Moreover, the three-dimensionally interconnected material (8) may contain filler material within at least a portion of its porosity. Particularly, an infiltration enhancer and/or an infiltration enhancer ...

A sanitary napkin having a topsheet and an absorbent core associated with the topsheet is disclosed. The topsheet and associated core are decoupled from the backsheet of the sanitary napkin so that the topsheet and backsheet may be separated in the Z-direction. The sanitary napkin has a joined transverse edge connecting the topsheet and backsheet and forming a hinge to facilitate the Z-direction s...

A boron nitride-containing composition for use as a film-forming coating on substrates comprising particulate boron nitride dispersed in a solution of methyl chloroform and a solvent, with or without clay. The composition is also suitable for use in aerosol cans.

Finely divided silicon carbide materials, particularly powders, whiskers and short fibers, are provided with a titanium nitride surface coating by the process of (i) placing a low carbon diffusivity layer atop the silicon carbide, (ii) placing a titanium metal coating atop the low carbon diffusivity layer, and (iii) nitriding the titanium metal.

A liquid silicone rubber composition capable of yielding a thermally conductive elastomer which comprises an organopolysiloxane capable of reaction with an organohydrogenpolysiloxane having at least two 3BOND SiH bonds, two types of alumina powders having, respectively, defined average sizes, and a catalytic amount of platinum or a platinum compound used as a catalyst for the reaction between the ...

Data recording and reproducing apparatus for use in an optical card on which a plurality of tracks are arranged in parallel, said apparatus comprising: card supporting means for supporting said optical card; card drive means for reciprocating said card supporting means in a first direction; an optical head for selectively providing an access to rspective tracks to irridate light beam at a position...

Diffractometer data is collected without the use of a movable receiving slit. A scanning device, positioned in the diffractometer between a sample and detector, varies the amount of the beam diffracted from the sample that is received by the detector in such a manner that the beam is detected in an integrated form. In one embodiment, a variable diameter beam stop is used which comprises a drop of ...

Male and female members for contact lenses are disclosed. Either member is able to hold the contact lens as it moves from station to station during the hydration process. The female member fits together with the male member forming a chamber. Each of the members contains a line centrally located so that both surfaces of the contact lens are flushed during the hydration process, and drainage takes ...

Male and female members for contact lenses are disclosed. Either member is able to hold the contact lens as it moves from station to station during the hydration process. The female member fits together with the male member forming a chamber. Each of the members contains a line centrally located so that both surfaces of the contact lens are flushed during the hydration process, and drainage takes ...

A diaper assembly includes a reusable over-garment having opposite side edges and two opposite ends and inner and outer surfaces and an absorbent liner adapted for positioning on the inner surface side of the over-garment. This liner also has opposite ends and inner and outer surfaces. There is a separate, disposable non-absorbent inner sheet adapted to cover the inner surface of the liner and hav...

An improved disposable absorbent garment includes a covering sheet member having a waistband section at each longitudinal end thereof and an intermediate section interconnecting the waistband sections. An absorbent body is superposed in facing relation on the covering sheet member, and has a notch section formed into at least one terminal, longitudinal edge thereof. An elastomeric member is attach...

An automatic self-guiding lawn mower includes a carriage having first and second sets of electric motors mounted thereon. A blade is operatively connected to and driven by each one of the first set of electric motors for cutting grass, and a wheel is operatively connected to and driven by each one of the second set of motors for moving the carriage. A relay device having at least one trip point is...

The present invention presents a beam converting apparatus which comprises a semiconductor laser element (3), means (4) for converting the laser beam from the semiconductor laser element (3) into a parallel beam, and a prism (1) possessing a first plane (1a) for receiving the parallel beam and a second plane (1b) for fully reflecting so that the beam entering from the first plane (1a) may be emitt...

A detachable two-piece temple (10) having a front piece (12) swivelly attached to the back of an eyeglass frame (80) and a back piece (40) that is quickly, easily and securely attached and detached from the front piece (12). The front piece (12) has extending from its rear surface a resilient locking rod (22), that includes a lock notch (24), and a guide rod (30). The back piece (40) includes a lo...

Outer and inner elastomeric envelopes are compression-molded to contiguously encase the interior and exterior surfaces of a tire to prevent any air or steam present during a retreading process from penetrating the cushion gum between the retread and tire casing. The outer envelope of outwardly opening U-shape radial cross-section covers the tire periphery and a portion of the outer walls. The inne...

The present invention relates to a process for producing a mold for glass press molding which comprises adopting, in the ion plating method to form an i-carbon film, a given hydrocarbon, given voltages, given temperature conditions, etc. According to the process, there could be obtained a mold for glass press molding, having an i-carbon film superior in adhesion to mold base, hardness, lubricity, ...

A liquid composition is described which comprises (A) a major amount of a fluorine containing hydrocarbon containing one or two carbon atoms, and (B) a minor amount of a soluble organic lubricant comprising at least one carboxylic ester compound characterized by the formulae RO(R1O)nC(O)R2(I) and R3OC(O)R2(II) wherein R is a hydrocarbyl group of at least 2 carbon atoms, R1 is a hydrocarbylene grou...

A method for reducing the lamellarity of a population of liposomes is provided which comprises repeatedly passing the liposomes under pressure through a filter which has a pore size equal to or less than about 100 nm. In certain embodiments, the method is used to convert a population of previously formed multilamellar liposomes into a population of substantially unilamellar liposomes. In accordanc...

A ceramic substrate and a metallic layer formed thereon are bonded closely by means of a bonding layer formed between the ceramic substrate and the metallic layer. The ceramic substrate comprises either alumina or a ceramic containing alumina, and the metallic layer comprises either molybdenum (Mo) or an alloy composed of molybdenum (Mo) and at least one of titanium (Ti), zirconium (Zr) and niobiu...