Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5088638 | Method for making sucker rods A method for making sucker rods composed of a rod body (1) and end heads (2), consisting in upsetting the rod body end portions (8) carried out at a temperature that precludes softening of the rod body (1) metal, a thickening (9) being formed on each of t... | 02/18/1992 |
| 4984817 | Fully articulated suspension of tandem wheels of a transport vehicle A fully articulated suspension of tandem wheels of a transport vehicle having a frame (1) with axles (2) has torque reaction rods (17, 18, 19, 20) linked with the axles, at least one pair of double-arm levers (3), each linked mechanically with the frame (... | 01/15/1991 |
| 4984976 | Mold for making annular polymeric articles A method of making annular polymeric articles in which a workpiece is placed on a cylindrical shaping surface and is divided about the perimeter into alternating first and second portions. Moulding is done in two stages, the first stage including moulding... | 01/15/1991 |
| 4947587 | Chamber for abrasive powder descaling the surface of a strip The proposed chamber relates to sheet rolling in metallurgy. The chamber has two halves with a structure for closing, sealing, and opening the halves, and departing one half from the abutment plane, and includes two mechanisms for compacting the abrasive ... | 08/14/1990 |
| 4947813 | Method for controlling the rotational speed of a thermal engine A method for controlling the rotational speed of a thermal engine residing in that a speed of rotation of the theraml engine is preset, a control signal based on this speed is shaped to control the speed of rotation of an electric motor according to the r... | 08/14/1990 |
| 4946433 | Centrifuge drive The drive of a centrifuge utilized in biology, biophysics and medicine includes a casing accommodating a stator and a rotor whose shaft is installed in an angular bearing and rigidly connected with a flexible shaft fixed rotatably in a dumping device. The... | 08/07/1990 |
| 4942970 | Hermetically sealed canister The hermatic seal unit is for a container having a lower portion and an upper portion of a slightly greater diameter. There is a shoulder portion at the junction of the upper and lower end portions. The device includes a cover conforming in shape to the u... | 07/24/1990 |
| 4940939 | Apparatus with inductive loop synchronized oscillators for measuring the magnetic content of non-metallic samples An apparatus for measuring the magnetic content of non-metallic samples includes operating and reference sine wave oscillators of identical frequency, a mutual synchronization loop for said oscillators, and a phase meter connected to the oscillator output... | 07/10/1990 |
| 4940876 | Method of flash-butt resistance welding of a batch of like parts in pairs A method of flash-butt resistance welding of a batch of like parts in pairs consists in that during flashing off of workpieces (1,2) they are brought apart or together depending on the resulting resistance obtained by comparison of the actual resistance b... | 07/10/1990 |
| 4939716 | Optical information carrier An optical information carrier includes a cylinder (1) with a recording layer (2) and bushings (3,4) located at butt ends of the hollow cylinder (1) and insulating the recording layer (2) from the environment. A method for erasing information recorded on ... | 07/03/1990 |
| 4938674 | Extruder head for making anticorrosive tubular polymeric film An extruder head for making an anticorrosive tubular polymeric film has a body having an extrusion die, a hollow core mounted in the body and extending through the extrusion die, a molding passage terminating in an annular opening. Chambers are defined in... | 07/03/1990 |
| 4936707 | Method of laying a pipeline The proposed pipeline is made up of pipe sections connected in succession by elastic outer coupling elements having their entire surface brought into intimate contact with pipe section joints. Provided at the ends of the pipe sections are recesses for acc... | 06/26/1990 |
| 4934466 | Device for borehole hydraulic mining A device for borehole hydraulic mining includes a pipeline for delivering fluid into the hole accommodated inside a pipeline for bringing pulp to the surface and featuring a constant inside diameter along the entire length of this pipeline. The pipeline f... | 06/19/1990 |
| 4931702 | Electric-arc device An electric-arc device has two aligned electrodes separated by an arc gap. The position of an electric arc in the arc gap is stabilized by using at least two coils, each made as a rectangular loop and bent around a cylindric surface. The coils are mounted... | 06/05/1990 |
| 4931713 | Rectifier electric drive A rectifier electric drive has a synchronous machine shaft position transmitter (2) which is electrically connected to an output of a permanent storage (10). The output bus of this storage (10) is connected to control inputs (11) of code-to-pulse duration... | 06/05/1990 |
| 4930026 | Flaw detector for magnetographic quality inspection A flaw detector includes a readout unit; a sensor of cycles or lines, and a mechanism for driving the magnitogram and a magnetosensitive transducer. A permanent memory is made as a magnetic medium and a recording magnetic head, a test data processing unit... | 05/29/1990 |
| 4926105 | Method of induction motor control and electric drive realizing this method Method of induction motor vector control in Cartesian and polar coordinates, whereby control of the rotor speed, induction motor torque, as well as dynamic, power, and thermal processes, which is interconnected with control of the rotor flux linkage ampli... | 05/15/1990 |
| 4924768 | Multi-purpose baking and roasting rack A multi-purpose baking and roasting rack which includes a drip pan and a plurality of upwardly directed generally vertically oriented skewer rods positioned above the interior surface of the drip pan each adapted to support and pierce a food item to be ba... | 05/15/1990 |
| 4923127 | Ball tube mill A ball tube mill in which an inclined wall dividing a housing of the mill into coarse and fine grinding chambers is fabricated from rigidly interconnected rods forming therebetween through slots for the passage of the material being ground. Part of each s... | 05/08/1990 |
| 4920705 | Method of abrasive powder descaling of a strip The method envisages measuring strip tension and computing the difference between tensions at the inlet to and outlet from each descaling zone, comparing this difference is strip tension with a preset difference, and compensating for deviations in strip t... | 05/01/1990 |
| 4919527 | Solar radiation concentrator A solar radiation concentrator includes a supporting frame (1), facets (2) arranged thereupon in annular rows, the reflecting surface of the facets being divided into annular zones (3). At least one of the peripheral annular zones (3) has a toroidal surfa... | 04/24/1990 |
| 4918960 | Method for removing scale from a metal strip A method relates to the metallurgical industry. The claimed method includes stretching of the strip (1) flat in a horizontal position through the cleaning zone with abrasive ferromagnetic powder (6), in so doing, the strip is stretched first in one direct... | 04/24/1990 |
| 4917312 | Ball tube mill A ball tube mill has a housing with an inlet and an outlet for material to be comminuted accommodates annular wall plates spaced at a predetermined distance from each other, arranged at an angle to the longitudinal axis of the housing, and having the form... | 04/17/1990 |
| 4918557 | Cleaner for magnetic head of tape recorder A cleaner for magnetic heads of tape recorders includes two gears centrally engaged with the revolving shaft of the recorder during use and pivotally installed in two revolving shaft holes on the tape cartridge respectively and peripherally engaged with e... | 04/17/1990 |
| 4915123 | Apparatus for preparing gas mixtures from constituents taken in a given proportion An apparatus for preparing gas mixtures from constituents taken in a given proportion which incorporates sources of gas mixture constituents connected to pressure-reducing valves and to a device for stabilizing absolute pressures of the gas mixture consti... | 04/10/1990 |
| 4916535 | Method of non-destructive quality inspection of materials and videomonitor realizing this method A method of non-destructive quality inspection of materials wherein a data transmitter and a material to be inspected are positioned very near to each other and set in motion in relation to each other. Information fed by the data transmitter is converted ... | 04/10/1990 |
| 4916742 | Method of recording and reading audio information signals in digital form, and apparatus for performing same The method of recording and reading audio information signals in digital form includes detecting, during time compression of digital signals, a chain of code values of the digital signal corresponding to a pause in the audio signal, measuring the duration... | 04/10/1990 |
| 4913874 | Process of providing tubular polymeric anticorrosion film A process of producing a tubular polymeric anticorrosion film which includes extrusion of a mixture of a thermoplastic polymer with a corrosion inhibitor in a liquid phase or with a solution thereof in a plastifying agent employed in an amount exceeding t... | 04/03/1990 |
| 4909682 | Table positioning device for metal-cutting machine tools The herein proposed invention relates to mechanical engineering. The essence of the invention resides in the fact that a contrivance for setting the table position includes two disks provided with drives for moving the table in a horizontal plane and disp... | 03/20/1990 |
| 4910374 | Welding complex A welding complex in accordance with the invention comprises a machine for resistance butt welding, means for supporting the end part of the pipeline and holding means including a platform reciprocable axially of the pipeline and a plate with a device for... | 03/20/1990 |
| 4908814 | Method of photothermal information recording reading and erasing A method for photothermal information recording, reading and erasing consists in that the surface of a recording medium (1) is charged prior to the photothermal recording process and then exposed, during photothermal information recording and erasing, to ... | 03/13/1990 |
| 4907752 | Ball-tube mill A ball-tube mill includes a rotatable drum enclosed at the opposite sides by bottoms having a charging port and a discharge port, the drum accommodating an even number of perforated walls having the form of an ellipse, arranged at an angle to the centerli... | 03/13/1990 |
| 4906048 | Method of downhole hydraulicking of mineral resources The method of downhole hydraulicking of mineral resources consists in sinking main holes, fitting the main holes with casings down to a depth below a lower boundary of a pay-out bed, installing an apparatus for hydraulicking mineral resources in each main... | 03/06/1990 |
| 4902070 | Foldable automobile convertible seat An adult to infant convertible seat is described for automobiles and other moving vehicles which have a storage compartment behind the convertible seat. The infant seat is retractable into the storage compartment and extendible into the infant seat use po... | 02/20/1990 |
| 4901511 | Harvester reel rake bar The distinguishing feature of the invention resides in the fact that each tine of the rake bar is configured in the cross-section as an isosceles triangle with a working edge defined by a vertex of an angle between the lateral sides in the direction of ro... | 02/20/1990 |
| 4902214 | Automatic multicolor rubber molding machine A new automatic multicolor rubber molding machine includes a feed unit having a plurality of tanks for rubber material of different colors. A heating and pressing unit have upper and lower electric heaters, and a mold unit consisting of one or more distri... | 02/20/1990 |
| 4899941 | Apparatus for grinding In an apparatus for grinding comprising at least one grinding working member (1) kinematically associated with a drive (6), according to the invention, the working member (1) is made in the form of at least one arc-shaped spiral (2) with a progressive win... | 02/13/1990 |
| 4898457 | Optical system of television camera An optical system of a television camera comprises, according to the invention, arranged in the direction of the light flux on one optical axis, an objective composed of n elements and a faceplate of a television tube, a light-sensitive layer being locate... | 02/06/1990 |
| 4896130 | Magnetic system A magnetic system comprises a frame with at least one coil arranged coaxially thereon and providing for the setting-up of a magnetic field, and a cooling system. Wound in layers on a former of each coil are conducting and insulating tapes encompassed by a... | 01/23/1990 |
| 4895011 | Continuously balanced apparatus for storing and dispensing elongate materials An apparatus is described for storing and dispensing elongate flat strip material for use with rotating machinery, such as that used to produce helically wound interlocked flexible pipe. The strip material is fed from an external payoff or supply reel and... | 01/23/1990 |
