An air-fuel (A/F) controller of an internal combustion engine, which computes an average value of a plurality of duty ratios of the voltage supplied to the heater according to the engine speed and the engine load periodically detected during a period from a predetermined moment up to the present, and fixes said average value as the present duty ratio of the voltage to be supplied to the heater, si...

A safety binding for a ski includes a jaw for holding the sole of a ski boot, the jaw being movable at least transversely with respect to the axis of the ski. The jaw is held in its normal position by an elastic member which returns it into its normal position after transverse movement. The jaw is associated with a pedal positioned under the end of the sole of the ski boot. This pedal includes a s...

Quinolone and naphthyridine antibiotics useful for treating ocular infections by topical administration.

Improved methods are provided for incorporating carbon dioxide and carbon dioxide generating compounds into polyurethane foam forming compositions as blowing agents to eliminate or reduce the amount of low boiling liquid auxiliary blowing agents, such as methylene chloride and chlorofluorocarbons conventionally used in the manufacture of urethane foams.

An improved spandex composition is provided in which a polymeric hindered tertiary amine stabilizer is present. The polymeric amine is poly(diisopropylaminoethyl methacrylate/hydroxybutyl acrylate) or poly(diisopropylaminoethyl methacrylate/ethyl acrylate).

On-line timing signal fault detection is provided by taking advantage of differential signal distribution commonly employed in digital data processing systems. An acceptance window indicative of permissible phase shift variations between the differential signals is established using a plurality of flip-flops having clock and data inputs to which delayed, undelayed, inverted and uninverted versions...

An electrosurgical apparatus comprises an electrosurgical generator for producing cutting and coagulation signals and has either pedal operated or hand operated switches for switching on and off and between cutting and coagulation signals. A cutting and coagulation probe is energized by the generator and has a handle portion and a probe element. An on/off switch controls energization of the probe ...

A composition comprised of polyvinyl alcohol coating and at least one water insoluble particulate organic or inorganic material having a plate like structure for use on at least one side of a rubber tire. Preferred particulate materials are flake mica and flake glass.

Wet laminating adhesives capable of withstanding the stresses encountered during heat sealing operations are prepared from emulsion copolymers consisting essentially of 45 to 80% by weight of a vinyl ester of an alkanoic acid, 10 to 30% ethylene, 5 to 30% of dialkyl maleate, 0.5 to 2% of an N-methylol containing comonomer and 0.5 to 4% of an ethylenically unsaturated mono- or di-carboxylic acid. T...

Tack-free silicone gel moldings and methods of making such moldings are prepared by coating tacky silicone gel moldings with a silicone rubber particles, silicone resin particles, inorganic particles, and/or organic resin particles having an average diameter less than about 1 mm.

A high density polyethylene composition comprising: from about 50 to about 95 weight percent of high density polyethylene; from about 5 to 40 weight percent of polyisobutylene rubber; and from about 1 to about 30 weight percent of a filler selected from the group consisting of mica, talc and mixtures thereof. Films made from the compositions have improved tear-resistance and puncture-resistance.

Expandable and expanded particles are prepared from an alkenyl aromatic polymer and a volatile fluid blowing agent comprising 1,1-difluoro-1-chloroethane; and one or more of normal pentane, isopentane and neopentane. The blowing agent may also comprise 1,1,1-trichloroethane.

A method for manufacturing pourable pulverulent rubber-filler mixtures starting from rubber solutions is disclosed. In this method, the filler is dispersed in an organic solvent and then mixed with a rubber solution to obtain a stable rubber-containing filler dispersion. The dispersion is then introduced into hot water containing a dispersed filler and subjected to high shear forces, causing the o...

Phenolic resin compositions. Phenolic resin compositions containing an additive consisting of at least 20% by weight of an alkaline or alkaline-earth metaborate relative to the total weight of the additive. Applications to the manufacture of phenolic prepreg mats which are stable in storage.

Well logging apparatus comprising a number of measuring electrodes (2) e.g. of metal, affixed in interspaced relationship on an earth drill (1) so as to be electrically insulated and serving to determine the electric formation resistivity in the earth strata traversed by the earth drill (1). The drill string of the earth drill (1) comprises a substantially cylindrical main drill stem (7) provided ...

Method and apparatus for recording information on a card-shaped optical information recording medium with a light beam and/or for reproducing information recorded on the medium. The apparatus includes a device for irradiating the medium with a light beam, a device for causing relative reciprocal movement between the medium and the light beam, and a device for terminating or displacing the light be...

A thermoplastic polymeric composition having antistatic characteristics comprises a polyethylene and an antistatic agent which is a fatty acid ester of polyhydroxy alcohol, a polyalkoxylated compound or a mixture thereof e.g. a mixture of polyethoxylated cetyl alcohol and glyceryl monostearate. The composition may be in the form of a film, which is useful for packaging static sensitive devices suc...

An abdominal muscle exercise apparatus which provides for using hamstring pressure to oppose an anterior tilting of the pelvis while working the abdominal muscles. There is disclosed adjustable support means for both the back of the heel of a user (8) and the hips (13) and back (15) on an inclined stem (4) supported by a T-shaped base (1). In use, the stop pad (14) is located relative to the back ...

The invention relates to porous post-chlorinated polyvinyl chloride resins which contain or have incorporated therein a salt of phosphoric acid resulting in a substantial improvement in the thermal stability thereof during subsequent processing. The phosphate salt is added to the porous post chlorinated polymer from an aqueous solution thereof which optionally contains a surfactant, which wets the...

This invention concerns a process for producing cellular plastics by the polyisocyanate polyaddition process by reaction of (a) organic and/or modified organic polyisocyanates with (b) at least one high molecular compound with at least two reactive hydrogens and optionally (c) low molecular chain extenders and/or crosslinking agents in the presence of (d) blowing agents (e) catalysts (f) additives...