Osiko
Viacheslav Osiko, Moscow RU
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20110012348 | HIGHLY- TIGHT THREADED JOINT - The invention relates to building oil and gas wells and can be used in casing strings and tubings. The inventive highly-tight screw joint comprises internal and external mating elements with conical surfaces. The internal and external elements are provided with a thread. Said thread has supporting and embedded faces. A sealing unit is made in the form of a wedge on the side of a small diameter. The sealing unit is provided on the internal and external elements. The sealing unit consists of the parts of the internal and external elements. The internal and external elements of the sealing unit are formed by conical radial and conical stop faces. The conical radial face is made at an angle of 25°-35° to the normal to the thread axis. The conical supporting surface is made at the angle of 10°-25° to the normal to thread axis. Said invention makes it possible to increase the reliability, the tightness and the strength of the joint, to ease the assembly and disassembly thereof, to improve the abrasion resistance of the joint and to extend the service life thereof. | 01-20-2011 |
20120016441 | DEVICE FOR ELECTRIC PULSE STIMULATION OF HEALING OF WOUNDS - A device that improves the efficiency of the treatment process, shortens healing time, and treats large-area wound surfaces and various forms of local inflammatory processes comprising an HF generator, power source, timer, pedal, electronic module control device, and a device for delivering exposure energy from the generator to biological tissue, wherein the pedal is pressed, a signal arrives at a timer and electronic module for controlling a device for the metered movement of a needle electrode. By means of this module, movement to a specified depth can be ensured. After the needle electrode is inserted into biological tissue, a signal to turn on the HF generator is sent automatically from the timer and a movement sensor. The current of the HF generator is modulated by a modulator that is fed to needle electrode. The timer turns off the HF generator, and the needle electrode is extracted from the biological tissue. | 01-19-2012 |
Viacheslav V. Osiko, Moscow RU
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20100047738 | Device for Forming a Bone Bed for Dental Implants - A device for forming a bone bed for dental implants having a head composed of crystal of partially stabilized zirconium dioxide with a nanostructure having a crystallographic axis that coincides with the axis of the bone bed forming device. The head has cutting elements formed as a rotatable plate. The plate has two broad facets formed by circular arcs that are convex relative to the axis of bone bed forming device. Transition from one of the convex circular arc to another convex circular arc is smoothed by circular arcs that are concave relative to the axis of bone bed forming device. Grooves form first and second cutting members with narrow facets of the plate. The head has an end part shaped as a truncated sphere possessing a recess formed by two planes arranged at an angle of 90° relative to each other and passing through the truncated sphere center and two points belonging to two diagonally arranged plate ribs. A third cutting member is formed by the intersection of one of the above mentioned two planes and a spherical surface of one of the narrow plate facets of the end part of the head. | 02-25-2010 |
Vyacheslav V. Osiko, Moscow RU
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20110105295 | Zirconium dioxide-based material - The invention relates to the field of synthetic materials and is industrially applicable in the manufacture of wear-resistant construction parts for use under conditions of elevated temperatures, loads, and aggressive media, for cutting and machining tools, and in medical equipment. The technical problem of optimization of the performance parameters of the material, including crack resistance, hardness, and wear resistance, is solved. The objective is achieved by the fact that a material based on zirconium dioxide, containing yttrium and obtained by directed crystallization from batch mixture melted in a cold container, contains at least two tetragonal phases whose axes of tetragonality are 80-90°. The components of the batch mixture for obtaining the material are contained in the following ratio (in mol %): yttrium oxide, 2.8-3.7; zirconium dioxide, the remainder. To obtain the material, a thermal insulating layer | 05-05-2011 |