Patents Assigned to CUV "Progress"
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Patent number: 4532431Abstract: Method of and device for producing electric energy from a cyclic combustion process. The device includes two oppositely disposed aligned spark ignited internal combustion engine cylinders axially spaced from each other, means rigidly connecting the pistons so that they reciprocate in unison in their respective cylinders, and a reciprocable electrical linear generator-motor unit driven by said reciprocatory piston system. The generator-motor unit includes a very light coreless (ironless) coil rigidly attached to and reciprocatory with the piston system, the said coil reciprocating through a constant strength magnetic field. The beginning of the combustion process (or cycle) in each combustion chamber takes place at the lowest possible compression ratio sufficient for the initial ignition of the fuel-air mixture, the combustion process proceeding at a diminishing volume under the pressure from the compression- and combustion-forces of the opposite combustion chamber-piston system.Type: GrantFiled: September 30, 1982Date of Patent: July 30, 1985Assignee: CUV "Progress"Inventors: Maxim D. Iliev, Stoyu S. Kervanbashiev, Stefan D. Karamanski, Frederik M. Makedonski
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Patent number: 4406552Abstract: A printing device such as a typewriter and the like, comprising a printing unit with a positioning manipulator, an impacting unit, and a supporting surface. The printing unit is provided with a cassette in which a plurality of card-like printing elements are located. Each printing element has a plurality of vertical rows of printing characters and a plurality of horizontal rows of printing characters. A vertically mechanically reciprocated manipulator latches on to a selected printing element and raises it to bring the horizontal row containing a selected character to the height of the printing station. The selected printing body is moved laterally in its plane to bring the selected printing character into line with the printing station. Moving or positioning of the printing elements is achieved by means of linear-step electric motors.Type: GrantFiled: February 4, 1981Date of Patent: September 27, 1983Assignee: CUV "Progress"Inventors: Peter G. Chervendinev, Ventzislav G. Yankulov, Toma T. Ostromski
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Patent number: 4310254Abstract: A device for the processing of linguistic information containing a keyboard unit, an electronic processing unit and an output registration unit, with the keyboard unit processing keys for symbols distributed over a right hand side group to be operated by the right hand and a left hand side group to be operated by the left hand. The device has an electronic processing unit containing a memory, a decoder and a control unit, with the keyboard unit possessing space keys, the keys for symbols in the right hand side group having priority over the keys for symbols in the left hand side group. The keys for symbols in the right hand side group have priority from left to right and from top to bottom; the keys for symbols in the left hand side group have priority from right to left and from top to bottom.Type: GrantFiled: February 29, 1980Date of Patent: January 12, 1982Assignee: Cuv "Progress"Inventors: D'Angiolillo, Encho Y. Karmakov, Kiril T. Shakrachki, Metodi T. Shakrachki, Stoyan H. Stoyanov, Todorka N. Vassileva, Todor P. Trifonov
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Patent number: 4261499Abstract: A planetary device for feeding electrode wiring in welding operations is provided with a housing through which the wire is fed, the central portion of the housing being shaped as a flange with a hub, and the front side thereof being provided with seats housing pistons bearing radially adjustable wire-feeding rollers. The piston heads are in constant contact with the shorter arms of bow-type double-armed levers hingedly affixed to the flange portion of the hub and located perpendicularly to the axis of the electrode wire fed through the housing. The longer arms of the levers contact the surfaces of a cam supported in the hub of the housing for rotation with respect thereto. A torque spring in the form of an Archimedes spiral, disposed between the flange of the housing and the cam, and having its respective inner and outer ends affixed to such members, constantly urges the cam with respect to the housing in such direction as to urge the rollers inwardly into engagement with the electrode wire.Type: GrantFiled: June 16, 1978Date of Patent: April 14, 1981Assignee: CUV "Progress"Inventors: David A. Samokovliski, Alfred E. Nemecheck, Emil A. Maximov, Peter D. Petrov, Ivan I. Ivanov
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Patent number: 4177912Abstract: Apparatus for the planetary feeding of electrode wire having means for adjusting the pushing force exerted on the electrode wire by electromagnetic means. Opposed canted rolls are mounted for rotation about their axes upon a first housing part which is rotatable about the axis of an elongated electrode wire which passes between and is fed by the canted rolls. A second housing part, which is disposed coaxially of the first housing part, bears means such as a cam or a cone which interacts with roll adjusting means mounted on the first housing part so as to adjust the force with which the canted rolls engage the electrode wire in accordance with relative motion between the two housing parts. The second housing part is driven for rotation about its axis.Type: GrantFiled: November 25, 1977Date of Patent: December 11, 1979Assignee: CUV "Progress"Inventors: David A. Samokovliski, Angel S. Angelov, Georgi N. Nachev, Peter D. Petrov, Alfred E. Nemechek, Iliyana I. Vajarova
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Patent number: 4162409Abstract: A device for converting the energy of sea waves into electrical energy. A tank-like inlet converter receives sea water from the peaks of waves and discharges it to a water-driven turbine. The turbine drives an electrical generator. Spent water from the turbine is delivered to an outlet converter which delivers the spent sea water to the troughs of the waves. The inlet and outlet converters are provided with controllable water inlet and outlet valves, respectively, which control the flow of sea water into and out of the inlet and outlet converters, respectively.Type: GrantFiled: June 8, 1977Date of Patent: July 24, 1979Assignee: CUV "Progress"Inventors: Ivan P. Nedyalkov, Kancho T. Kanchev, Svetoslav R. Trenkov