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Greyling
Abraham Carl Greyling, Villach AT
| Patent application number | Description | Published |
|---|---|---|
| 20100194344 | Combining Two or More DC to DC Converters to Limit External Coils - This disclosure relates to a voltage converter including a control circuit, a converter sub-circuit, and a single coil, where when the voltage converter can perform bi-directional voltage conversion using the single coil. In other words, the voltage converter can generate one or more regulated output voltages in both directions from one or more input voltages using the same coil. | 08-05-2010 |
Barend Jacobus Greyling, Pretoria ZA
| Patent application number | Description | Published |
|---|---|---|
| 20090246177 | MEGASPHAERA ELSDENII STRAIN AND ITS USES - This invention relates to a novel strain of | 10-01-2009 |
Corinne Jean Greyling, Cape Town ZA
| Patent application number | Description | Published |
|---|---|---|
| 20100326699 | Polymeric High Voltage Insulator with a Hard, Hydrophobic Surface - The present invention relates to phase separated siloxane-hydrocarbon copolymer surfaces which are hard and hydrophobic and can be superhydrophobic by the addition of nanoparticles. More specifically the siloxane oligomer/polymer precursor is terminated with (a) chemically reactive group(s). The bond between the siloxane moiety and the hydrocarbon functional moiety is a Si atom directly bonded to a carbon atom. It is applied (for example) to the entire surface of a fibre reinforced and void-free polymer concrete core with 60 to 88% polymeric and inorganic fillers for application as a high voltage insulator. The product has high mechanical strength, impact resistance and good electrical insulation properties. The coating provides good UV resistance, hydrophobicity and a hard self-cleaning surface for use as outdoor high voltage electrical insulator in areas of high pollution with low leakage currents when energised and can also be applied to other products. | 12-30-2010 |
Hendrik Frederik Greyling, Bronkhorstspruit ZA
| Patent application number | Description | Published |
|---|---|---|
| 20100120619 | Agricultural Composition With PH Colour Indicators - The present invention provides a concentrate for dilution with water in the preparation of an agricultural composition for application to crops, soil or animals. The concentrate is recommended for use with agricultural chemicals whose agricultural activity varies with the pH of the water. It comprises an active ingredient and a combination of pH indicators for colouring the water, the pH indicators being selected so as to indicate different colours of spray water at different pH levels. The proportions of active ingredient and pH indicators are selected so that when the concentrate is added to water, the pH indicators indicate visually upper and lower pH limits for optimum activity of the agricultural chemical. | 05-13-2010 |