OMPI – Búsqueda en las colecciones de patentes nacionales e internacionales

1.WO/2001/040585FOUNDATION STRUCTURE AND ERECTION OF TOWERS

WO - 07.06.2001

Clasificación Internacional E02D 27/42 Nº de solicitud PCT/ZA2000/000234 Solicitante BROSNIHAN, Gail, Anne Inventor/a BROSNIHAN, Paul, Michael

A foundation structure which includes a reinforced concrete base (72), a plurality of bolts (74) extending upwardly from the base, and a plurality of anchors (12), upper ends of which are fixed to the base and lower ends of which extend downwardly, being embedded in a settable material in respective holes in the ground.

2.WO/2000/016883METHOD FOR THE REVERSE-OSMOSIS SEPARATION OF SALT CRYSTALS FROM MINERALISED WATER, DEVICE FOR REALISING THE SAME, MEMBRANE INSTALLATION AND MEMBRANE APPARATUS

WO - 30.03.2000

Clasificación Internacional B01D 61/02 Nº de solicitud PCT/RU1999/000330 Solicitante FEDERALNOE GOSUDARSTVENNOE UNITARNOE PREDPRIYATIE 'ISSLEDOVATELSKY TSENTR IMENI M.V.KELDYSHA' Inventor/a BARANOV, Alexei Evgenievich

The present invention relates to methods for freshening and desalting mineralised natural water or waste water. This invention more precisely relates to a method for the reverse-osmosis separation of salt crystals from mineralised water, as well as to a device for realising said method. This method involves supplying starting water under pressure into a membrane installation comprising a membrane apparatus. A permeate and a concentrate are obtained from the starting at the outlet of the membrane installation, wherein said concentrate is cooled down first in a heat exchanger and then in a crystalliser provided with a cooling system, the heat generated being discharged towards a cold source. The cooled concentrate is further fed into a separator in order to separate the crystals in the form of a dry product, the remaining solution being mixed back with the starting water by feeding it through a heat exchanger. The membrane installation includes sand filters, intermediate vessels with microfiltres, a high-pressure pump as well as membrane apparatus, wherein the installation includes at least three pairs of sand filters and intermediate vessels. The membrane apparatus are connected to each other in parallel and their number is at least equal to two. This installation also includes a chemical reactant vessel connected to the pump for supplying the starting mineralised water through a dosing pump. The membrane apparatus includes a body in which a plurality of membrane elements are provided together with filtrate discharge channels and connection pegs arranged between said membrane elements. The apparatus further includes covers provided with ducts for supplying the starting mineralised liquid and for discharging the permeate and the concentrate.

3.WO/2000/042323WATER HANDLING MEANS

WO - 20.07.2000

Clasificación Internacional F04D 1/14 Nº de solicitud PCT/ZA2000/000001 Solicitante REDINGER, Helmuth, Hermann Inventor/a REDINGER, Helmuth, Hermann

A water lifting machine has multiple facets which make it practical for use in rural and special applications. These facets include a frame on which a circular ring and a water tank are mounted in a manner in which the frame can be tipped on its side and the ring and tank then serve as wheels for transport of the machine. They also include a head which is rotated on a central conduit to lift water and has preferably downwardly or upwardly and outwardly extending arms with outlets which discharge into the ring around them, the outlets being provided with closure means openable by centrifugal effect. The arms and conduit form a siphon effect in the machine as long as there is sufficient pressure at the outlets to keep the closure means open. Drive train options allow effective application of human power for lifting water including one or two persons pedaling or two persons cranking. Options for leading the lifted water into drums or containers are provided.

4.WO/2000/053858CONSTRUCTION ELEMENT

WO - 14.09.2000

Clasificación Internacional E04B 5/28 Nº de solicitud PCT/ZA2000/000043 Solicitante ERWEE, Paul Inventor/a ERWEE, Paul

A construction element for use in casting a slab to span a gap defined by a support arrangement or structure includes a cavity or void-forming means which is configured to form a cavity or void in a slab and a locating means which is configured to locate and retain the void-forming means in position between and spanning a pair or substantially parallel beams of the support structure. Furthermore, a construction assembly is provided which includes at least a pair of longitudinally extending support beams which are configured to span and be supported by a pillar and cross-beam arrangement and construction elements as described and/or claimed in any one of the preceding claims which are configured to span and be supported by the support beams.

5.WO/2001/051685REMOVAL OF METALS FROM SOLUTION

WO - 19.07.2001

Clasificación Internacional C25C 1/20 Nº de solicitud PCT/ZA2001/000001 Solicitante SOLE, Michael, John Inventor/a SOLE, Michael, John

An apparatus for removing metals from solution by electrowinning is described. It comprises a plurality of chambers in an endless annular array. Each chamber contains a plurality of submerged cells including a porous anode and cathode. A suction pump which draws solution from the chamber through the anode and then the cathode and discharges the solution back into the chamber. There are a valve controlled inlet to and a discharge from each chamber together with a valve controlled connector connecting the chambers to one another. The first chamber is filled with loaded solution and after treatment in the first chamber the solution is passed to the next chamber and so on around the annulus. By changing the valve settings the next chamber becomes the 'first' chamber and this continued around the annulus. The metal adhering to the cathode is removed by flushing liquid or preferably by ultrasonic waves.

6.WO/2001/064347SPIRAL CONCENTRATOR UNIT

WO - 07.09.2001

Clasificación Internacional B03B 5/62 Nº de solicitud PCT/ZA2001/000027 Solicitante MULTOTEC PROCESS EQUIPMENT (PTY) LIMITED Inventor/a ROCHER, Marcel, Albert

According to a first aspect of the invention, there is provided a process for manufacturing a spiral concentrator unit including the steps of providing a first mould (10) for moulding an inner, slurry bearing polyurethane layer; providing a fibreglass backing layer (13), located so as to create an enclosed cavity (12) between the first mould and the backing layer; and filling the mould cavity (12) with polyurethane, allowing the polyurethane to cure and bond with the backing layer (13) so as to produce a spiral trough with a uniform, high wear resistant inner layer of polyrethane and a relatively cheaper fibreglass backing layer.

7.WO/2002/019884BATH ASSEMBLY

WO - 14.03.2002

Clasificación Internacional A47K 3/16 Nº de solicitud PCT/ZA2001/000133 Solicitante MURRAY, Rory, Dean Inventor/a MURRAY, Rory, Dean

The invention relates to a bath assembly (30) comprising a bathtub (32) and a support therefore. In particular, the support is characterized therein that it comprises a cradle (40, 50, 60, 70) for receiving the bathtub (32) therein such that the bathtub (32) is nestled within the cradle (40, 50, 60, 70). The cradle (40, 50, 60, 70) further comprises carrying means (42, 52, 54, 62, 64, 72, 74) dimensioned to engage the bathtub (32) and support means (44, 56, 62) for supporting the carrying means (42, 52, 54, 62, 64, 72, 74) and locating the bathtub (32) relative to the ground. The invention also includes such a cradle (40, 50, 60, 70) for receiving a bathtub (32) therein.

8.WO/2003/019585LIGHTNING STRIKE PULSE DISSIPATOR

WO - 06.03.2003

Clasificación Internacional H01F 7/20 Nº de solicitud PCT/ZA2001/000130 Solicitante CLOETE, Alan, Dennis Inventor/a CLOETE, Alan, Dennis

Currents following through coil sets up a magnetic field, which changes the magnetic polarity of the coil every 1/50 of a second. The same current flowing through coil also sets up a magnetic field of which its magnetic field also now changes every 1/50 of a second. At the same time the magnetic field around each turn of each coil also changes. According to Lens Law the magnetic field set up in a coil will always react against the source of supply causing the magnetic field in the coil. Once you have installed the coil and it is on line with, for example, 11 KV the following takes place. The coil's magnetic field is now activated with a constant flow of 11 KV. When the lightning strikes the overhead line and the spike is running on the overhead line to the transformer via the coil. As it hits the coil both sides is now activated much higher than the 11 KV for instance 1000 000 volt now you have got two coils electric field opposing each other. This lightning spike is now absorb, dissipated, neutralized, cancelled. All this happens within 1/50 of a second. Then the power is back to (11 KV) normal. You have not redirected the lightning spike, you have neutralized it completely.

9.WO/1999/057412DOWN-HOLE HAMMER DRILL HAVING REVERSE CIRCULATION AND SAMPLE TUBE

WO - 11.11.1999

Clasificación Internacional E21B 4/14 Nº de solicitud PCT/ZA1999/000032 Solicitante GIEN, Bernard, Lionel Inventor/a GIEN, Bernard, Lionel

The invention concerns a reverse circulation rock drill having a backhead attached to a piston and cylinder assembly between the backhead and a drill bit assembly and around a sample tube with the outer walls of the sample tube and piston profiled to provide air paths for power and exhaust strokes of the piston, an O-ring seal being provided in the backhead as a check valve.

10.WO/2004/021781CRYPTOPHLEBIA LEUCOTRETA GRANULOVIRUS (CRLEGV-SA) AS A BIOLOGICAL CONTROL AGENT

WO - 18.03.2004

Clasificación Internacional A01K 67/033 Nº de solicitud PCT/IB2002/003702 Solicitante CITRUS RESEARCH INTERNATIONAL (PTY) LIMITED Inventor/a MOORE, Sean

The invention concerns a novel cryptophelebia leucotreta granulovirus. CrleGV-SA was isolated from infected C. leucotreta in South Africa. It is a double stranded DNA granulovirus with a genome size by restriction fragment analysis of between 105 kilobases and 122 kilobases. The restriction enzyme digestion profiles of CrleGV-SA are shown in Table 1 and Drawing 1/6 (DNA profile of CrleGV-SA with six single restriction enzymes digests). The virus is a biological control agent for C. leucotreta.

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