A pacemaker having a fault-tolerant elective replacement indicator (ERI) triggering scheme in which transient excursions of parameters used as criteria for triggering ERI are rejected as triggering events. Periodic assessments of certain indicia of battery depletion are made, and subjected to a long-term low-pass filtering operation in order to reduce the effects of transient excursions of the ind...

An aqueous silicone coating composition containing a reactive siloxane polymer and a non-reactive dimethylpolysiloxane in an aqueous carrier having an effective amount of at least one dispersing agent to disperse the siloxanes throughout the aqueous carrier. Also provided is a method of lubricating substrates by applying an aqueous silicone coating composition to the substrate and curing the silic...

A self-emulsifiable resin powder can be dispersed in water without utilizing additional surfactants or expending large amounts of mechanical energy. Such self-emulsifiable resin powders offer numerous distinct advantages over conventional latices. One of the most important benefits that is realized by utilizing self-emulsifiable resin powders is that they can be shipped dry which is the equivalent...

An erasable optical disk drive system is disclosed which utilizes an electron trapping media coated on the disk surface to store data in the form of light energy. Data is written onto the disk, which is contained in a light-tight contamination-free environment similar to a Winchester hard disk drive system, using a near infrared light laser beam. Data is read from the disk using a visible light la...

There is disclosed a styrene-based polymer composition which comprises (A) 10 to 98% by weight of a styrene-based polymer having syndiotactic configuration with a racemic pentad of 30% or more and (B) 90 to 2% by weight of polyphenylene ether having an intrinsic viscosity of 0.28 dl/g or more at 30 DEG C in chloroform. Also, a flame retarder, a flame-retardant aid, a rubber-like elastomer or a...

In an electronic cash implementing method, a user makes a bank apply a blind signature to user information Vi produced, by a one-way function, from secret information Si containing identification information, thereby obtaining signed user information. Further, the user makes the bank apply a blind signature to information containing authentication information Xi produced, by a one-way function, fr...

A method of making a permeation-resistant silicone elastomer-containing laminate useful for making fluid-containing implants such as mammary prostheses and gastric balloons. The method is accomplished by a) applying a layer of an unvulcanized heat-curable silicone elastomer composition to a cured silicone elastomer substrate, b) applying a layer of a solvent dispersion of a permeation-resistant el...

A device comprises a radiation source powered by a power-supply source, an optical system for projecting the radiation produced by the radiation source onto at least one radiation-sensitive semiconductor via an information carrier, and for each radiation-sensitive semiconductor an A/D converter intended to convert, during operation, an analog signal proportional to the detected radiation intensity...

A porous polytetrafluoroethylene resin material which comprises sintered or irradiated fluororesin powder inside the porous spaces of a continuously porous polytetrafluoroethylene resin base material.

PCT No. PCT/FR90/00467 Sec. 371 Date Mar. 18, 1991 Sec. 102(e) Date Mar. 18, 1991 PCT Filed Jun. 26, 1990 PCT Pub. No. WO91/00413 PCT Pub. Date Jan. 10, 1991.A dynamometric measuring device for a drill pipe which includes, firmly attached to the rotating pipe, sensors disposed in a groove on the pipe and electronics for conditioning the signals supplied by the sensors. The measurement signals are ...

PCT No. PCT/NL90/00072 Sec. 371 Date Mar. 31, 1991 Sec. 102(e) Date Oct. 31, 1991 PCT Filed May 16, 1990 PCT Pub. No. WO90/14453 PCT Pub. Date Nov. 29, 1990.Elongated object, made of an orientated alternating copolymer of carbon monoxide and an olefinically unsaturated monomer, which has a modulus of elasticity of at least 16 GPa, and a method for the production of objects from an alternating copo...

A parking brake system comprising a drum brake (200) comprising two shoes (206) outwardly movable relative to a friction surface of a drum (224); an activation device (220, 222) for generating an activation force to move the shoes outwardly to a first position into contact with the drum sufficiently to prevent the drum; a solenoid activated linkage mechanism (230, 240; 322, 352) is provided for ma...

An optomagnetic disc that has tracks, e.g., 2 byte pit regions (2a) for servo purposes and, e.g., 16 byte data write-in regions (2b) alternately defined is rotated at a set angular speed. An optical head has a laser diode for producing light to irradiate the disc. A reference clock pulse generator produces clock pulses in response to detection of servo pit regoins by the optical head. A lser drive...

This invention concerns biaxially oriented polypropylene films containing from 1 to 40 percent by weight of a hydrocarbon resin, the resin being substantially miscible with the polypropylene, and the film having a crease retention of at least 50% as measured by ASTM D920-49. The hydrocarbon resin is preferably a terpene resin, a hydrogenated synthetic resin or a compatible rosin. Crease retention ...

The epoxy resin mixture, which contains (a) an epoxy resin or a mixture of epoxy resins having an average epoxide content of from 4.4 to 5.0 equivalents/kg and an average epoxide functionality of greater than 2.0, (b) a novolak having a hydroxyl equivalent weight of from 90 to 120, from 0.8 to 0.95 hydroxyl equivalents of component (b) being present in the epoxy resin mixture per epoxide equivalen...

A multi-cellular cellulose particle having a multiplicity of cells spaced from one another by cell membranes is described, which cells have a maximum inscribed sphere diameter of larger than 2 mu m. The cells have a continuous hole structure in which cells the cells communicate with one another through openings in the membranes separating two adjacent cells. The multi-cellular cellulose particle ...

The process for producing a spunbonded nonwoven takes up a small volume because of the smooth depositing of the freshly spun fibres. The three-dimensionality of the nonwoven is to be increased by means of a new process of intermediate deposition. For this purpose, the fibres are not only compressed in a narrowing channel moving together with the fibres, but are also exposed there to a constantly c...

The invention relates to a novolak melt for impregnating glass fibres formed from a multiplicity of individual filaments. It is expediently provided that the melt comprises a novolak with a low degree of condensation and has a melting range of 50-120 DEG C (preferably 60-100 DEG C) and a melt viscosity of 0.1-150 Pa.s/130 DEG C (preferably 1-50 Pa.s/130 DEG C) and a flow distance (at a content of ...

Process for producing superconducting ceramics, in which, in a first process step, at least two metal or metal alloy powders are mixed with one another. Each metal or metal alloy powder is here prepared by means of a quenching (rapid solidification) process from a homogeneous melt and comprises at least two of the desired metals. Each metal or metal alloy powder contains at least one common metal ...

The invention relates to a process for the preparation of rubber solutions from crude rubber, in which crude rubber already containing additives such as carbon black, pigments, dyes and the like is used to prepare the solution, and the crude rubber is cooled to a temperature below its glass transition temperature in a cooler using liquid nitrogen, comminuted in a fine comminuter and stirred into a...