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| Number | Title | Issue Date |
| 6120929 | Lid for accumulator batteries and charging devices co-operating with said lid A lid for accumulator batteries has one or more holes to receive a device to ensure the circulation of electrolyte during the first charge and a second device to ensure the re-fill of electrolyte during the other charges. The lid is equipped with one or m... | 09/19/2000 |
| 6094364 | Direct torque control inverter arrangement The invention relates to an inverter arrangement for simultaneous control of a stator flux and a torque of an electric machine (M). In the invention, the inverter of the inverter arrangement is controlled on the basis of a stator voltage reference (u... | 07/25/2000 |
| 6053328 | Baffle for reactors used for liquids purification The invention realizes a baffle for a reactor for liquids purification, said reactor comprising: a tank containing the liquid to be purified; a plurality of injectors suitable for introducing in the tank said liquid to be purified; one or more rotating bl... | 04/25/2000 |
| 6035144 | Still photo camera A still photo camera for film and electronic image recording selectively employs various media and media evaluation modes with selectable mechanical, optical and electronic imaging.... | 03/07/2000 |
| 6033802 | Sealing tubular element for the poles of electric accumulators The invention discloses a sealing element (1; 100) for the poles (2) of electric accumulators consisting of a tubular body (10) which presents a through-hole (7; 70) lodging said pole (2) and which is provided with at least one collar (25; 125) matching b... | 03/07/2000 |
| 6027957 | Controlled solder interdiffusion for high power semiconductor laser diode die bonding A method and a resulting device for mounting a semiconductor to a submount by depositing a first layer of a first metal solder having a selected first melting point and corresponding thickness onto a surface of the semiconductor. Depositing a second layer... | 02/22/2000 |
| 6022636 | Case for lead accumulators A case for accumulators in which side walls lying in perpendicular planes are connected by a connecting wall. The intersecting planes define a corner and external profile for the container. An adduction tube is formed integral with the outer surface of th... | 02/08/2000 |
| 6019455 | Method of and apparatus for transferring material from a bulk medium A method of depositing material on a surface (136) is described in which a bulk medium (for example ink 122) in the form of a composition of dispersed insoluble material (for example ink particles) and a support medium is supplied to a cell (120). A movem... | 02/01/2000 |
| 6016708 | Existing strain measuring apparatus for analyzing stability of steel structure and method thereof An strain measuring apparatus for analyzing the stability of a steel structure and a method thereof employs a controller for receiving a variation difference amount from the strain gauge input unit measured using a strain gauge between a strain degree obt... | 01/25/2000 |
| 6010611 | Measurement of alumina in reduction pots This invention provides apparatus and a method for measuring the concentration of alumina in a molten electrolyte in a smelter. A test anode (101) (a mimic of the actual cell anode) supplied from a computer-controlled voltage source (303) with several to ... | 01/04/2000 |
| 6012021 | Microelectric position sensor A microelectric position sensor wherein an assembly of magnetic field sensitive elements assume first and second states when subjected to a magnetic field having an intensity below or above first or second predetermined values respectively. A magnet is se... | 01/04/2000 |
| 6005448 | Phase-tuned ring oscillator A ring oscillator comprises a ring of delay stages in which the output of each stage is input to the next stage in the ring. Tuning of the oscillation frequency of the oscillator is achieved by additionally taking outputs from delay stages elsewhere in th... | 12/21/1999 |
| 6005360 | Power unit for the supply of hydraulic actuators The invention discloses a power unit (1) which comprises: an accumulator battery (2); an electric converter (3) supplied by said accumulator battery (2); an electric motor (30) supplied by said converter (3); a hydraulic pump (4) mechanically connected to... | 12/21/1999 |
| 6000649 | Screw feeders with perfected profile for cutter-mixer-feeder wagon for fodder and grass or straw silage The invention is a cutter-mixer-feeder wagon for fodder and grass or straw silage, comprising at least two rotary screw feeders (7), housed inside a compartment (75) with curved section obtained on the bottom (76) of the container (2) itself, each one pro... | 12/14/1999 |
| 5990413 | Bifacial lightweight array for solar power A laminate includes bifacial solar cells that can receive and convert sunlight incident from either side. The laminate is held in a frame by high tensile cords that are strung like the cords in a tennis racket. The resulting assembly receives direct sunli... | 11/23/1999 |
| 5990474 | Near field optical probe for simultaneous phase and enhanced amplitude contrast in reflection mode using path matched differential interferometry and method of making it A probe includes first and second single-mode optical fibers with a semi-reflecting mirror between them. The second optical fiber is tapered by heating and pulling. The semi-reflecting mirror, the tapered portion, and the sample form a Fabry-Perot cavity.... | 11/23/1999 |
| 5983533 | Scarifer machine with a shaking milling drum A scarifier machine has a milling drum partially enclosed in a protective sump which is suspended from the frame of the machine by a linkage assembly. An eccentric drive reciprocates the sump relative to the frame.... | 11/16/1999 |
| 5987328 | Method and device for placement of transmitters in wireless networks From layout and attenuation data of an area and an initial guess, the placement and power levels of base stations and the resulting attenuation and base station ranges are calculated based on any chosen propagation model. A cost function is calculated whi... | 11/16/1999 |
| 5982174 | External cavity fiber Fabry-Perot magnetometer A magnetometer uses a material exhibiting the Faraday effect, in which the polarization of light transmitted through the material is changed in response to a magnetic field. When the material is placed in a Fabry-Perot cavity, multiple reflections of the ... | 11/09/1999 |
| 5960745 | Horse grooming device A grooming brush for a horse having both relatively stiff and relatively flexible bristles extending in generally opposite directions to one another. A currycomb is formed by projections extending from the sides of the brush, and a rigid hoof pick is supp... | 10/05/1999 |
| 5952903 | Operation of residual current devices A push button residual current device employs a single push button to perform setting and testing operations. Over a first part of the down stroke of the push button a test trip is initiated which causes the device to trip if it is properly functioning. W... | 09/14/1999 |
| 5942874 | Method of ensuring stability of synchronous machine The invention relates to a method of ensuring the stability of a synchronous machine in controlling the synchronous machine on the basis of direct control of flux and torque, in which the torque generated by the synchronous machine is increased/decreased ... | 08/24/1999 |
| 5941102 | Lock assembly Lock assembly including a first locking device in two parts intended to be mounted on a door, and a second detachable locking device intended to be treaded from above on the two parts of the first locking device when the door is closed. One of the locking... | 08/24/1999 |
| 5940286 | Method for controlling the power to be transferred via a mains inverter The present invention relates to a method for controlling the power to be transferred via a mains inverter, the mains inverter (VVS) being arranged to transfer electric power in both directions between the n-phase AC main system (U) and the DC intermediat... | 08/17/1999 |
| 5939803 | System for off-mains switching of current consuming devices such as actuators An off mains switching system automatically switches off the mains current to current consuming units and reestablishes operational voltage thereto in response to switching on of such units. A control circuit actuates a voltage coupler in response to a un... | 08/17/1999 |
| 5936503 | Controllable inductor A controllable inductor including a tubular core, a main winding (1) surrounding the core, a control winding running substantially axially to the core and an element (3) surrounding the core and arranged to support the main winding wound outside thereof i... | 08/10/1999 |
| 5934605 | Expanding shaft An expanding shaft has a cylindrical shaft with a plurality of radially disposed slots longitudinally extending along its outer surface. The shaft is adapted to support one or more rolls each of which has side edges. A plurality of mobile devices is dispo... | 08/10/1999 |
| 5929737 | Controllable inductor A controllable inductor including at least one tubular core (10), a main winding (5) surrounding the core and a control winding (11) running substantially axially through said core and returning substantially axially outside thereof between said core and ... | 07/27/1999 |
| 5924603 | Pump made of plastic for dispensing products from containers An all plastic pump for liquids has an elastic bellows in the shape of a spiral incorporates an integral spring. The turns of the bellows are arranged with contracted areas of the spiral formed with a protruding stiffening rib and sidewalls having a conve... | 07/20/1999 |
| 5923113 | Slip-ring arrangement with integrated rotary swivel joint for liquids An arrangement for the transfer of electric current, a liquid medium and a gaseous medium between fixed and rotatable sections. A protective casing surrounds sliding brushes pressing against sliding surfaces. A passage for each medium is parallel with rot... | 07/13/1999 |
| 5923526 | Arrangement for attaching an electrical component to a mounting base An arrangement for attaching electrical inductive components to a terminal block of a mounting base utilizes interlocking male and female plug-in connections. In instances where the electrical inductive components are measuring transformers, the arrangeme... | 07/13/1999 |
| 5920090 | Switched magnetic field sensitive field effect transistor device The invention concerns a Switched MAGFET (MAGnetic field sensitive Field Effect Transistor). A preferred SMAGFET embodiment consists of a MAGFET structure with two equal sized drain contacts (3, 4), a gate area consisting of two equal sized and electrical... | 07/06/1999 |
| 5903081 | Squirrel-cage induction motor The present invention relates to a squirrel-cage induction motor for frequency converter use, in particular, which squirrel-cage induction motor comprises a stator, a stator winding arranged in its axial grooves, divided into at least two coil groups for ... | 05/11/1999 |
| 5898947 | Takeup device for a firefighter garment A first buckle having a slot therethrough is connected to the garment at a first location. One end portion of a takeup strap is connected to the garment at a spaced second location. A second buckle has a pair of slots formed therethrough with a bar thereb... | 05/04/1999 |
| 5900795 | Controllable inductor A controllable inductor comprises at least a tubular core (13) a main winding (5) surrounding the core, a control winding (13) passing substantially axially through the core, a ground part (15) arranged inside the main winding and an element surrounding t... | 05/04/1999 |
| 5838350 | Apparatus for generating droplets of fluid A device for generating droplets of fluid has a fluid supply reservoir and an electromechanical transducer. Electrodes are arranged to cause expansion and contraction of the transducer in a dimension perpendicular to the applied electric field. A perforat... | 11/17/1998 |
| 5825152 | Load-commutated synchronous motor drive A load-commutated synchronous motor drive has a line-commutated network-side converter (3), a current-source dc intermediate link (PL, NL, 5) and a load-commutated machine-side converter (2) for connection to a synchronous machine (1). The motor drive com... | 10/20/1998 |
| 5823428 | Liquid spray apparatus and method A method of and apparatus for atomizing a liquid are disclosed, in which a liquid is caused to pass through tapered perforations (50) in a vibrating membrane (5) in the direction from that side of the membrane (5) at which the perforations (50) have a sma... | 10/20/1998 |
| 5820043 | Cutter-mixer wagon for the recycling of plant residues with perfected conveyor belt The invention is a cutter-mixer wagon (1) for plant residues, comprising: a container (2) provided with an opening (21) for the introduction of said plant residues to be processed; a pair of rotary screw feeders (4) for cutting said plant residues; a conv... | 10/13/1998 |
| 5816474 | Linear motor pump for wave soldering systems The linear motor pump for a wave soldering apparatus comprises in accordance with the invention several pumping channels arranged substantially parallel to each other and separate from each other. It includes preferably a multiply segmented stator. Each s... | 10/06/1998 |
