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Kommareddi
Nagesh S. Kommareddi, Broken Arrow, OK US
| Patent application number | Description | Published |
|---|---|---|
| 20080287568 | Polyolefin Drag Reducing Agents Produced by Non-Cryogenic Grinding - Fine particulate polymer drag reducing agent (DRA) in bi-modal or multi-modal particle size distributions may be produced simply and efficiently without cryogenic temperatures. The grinding or pulverizing of polymer, such as poly(alpha-olefin) suitable for reducing drag in flowing hydrocarbons may be achieved by the use of at least one liquid grinding aid and at least two grinding processors in series. The impellers of the grinders are of different openness so that granulated polymer fed to the first processor having a relatively more open impeller is ground to an intermediate size which is fed to the second processor having a relatively more closed impeller which grinds the polymer to a second, smaller size. A non-limiting example of a suitable liquid grinding aid includes a blend of propylene glycol, water and hexanol. Particulate DRA may be produced at a size of about 300 microns or less in only two passes. | 11-20-2008 |
Nagesh S. Kommareddi, Tulsa, OK US
| Patent application number | Description | Published |
|---|---|---|
| 20110319520 | Polyolefin Drag Reducing Agents Produced by Multiple Non-Cryogenic Grinding Stages - Fine particulate polymer drag reducing agents (DRAs) in bi-modal or multi-modal particle size distributions may be produced simply and efficiently without cryogenic temperatures. The grinding or pulverizing of polymer, e.g. non-porous poly(alpha-olefin) suitable for reducing drag in hydrocarbons may be achieved by the use of at least one liquid grinding aid and at least two grinding processors in series. The blades of the stators of the grinders are of different configuration so that granulated polymer fed to the first processor having relatively larger gaps between blades is ground to an intermediate size which is fed to the second processor having relatively smaller gaps between blades which grinds the polymer to a second, smaller size. A non-limiting example of a suitable liquid grinding aid includes a blend of propylene glycol, water and hexanol. Particulate DRA may be produced at a size of 300 microns or less in only two passes. | 12-29-2011 |
Sankarareddy S. Kommareddi, Bangalore IN
| Patent application number | Description | Published |
|---|---|---|
| 20090091357 | LOW VOLTAGE DIFFERENTIAL SIGNALLING DRIVER - A low voltage differential signal (LVDS) driver comprising a cascade current source circuit coupled to a positive voltage supply configured to supply a current, a cascade current sink circuit maintained at a ground voltage configured to receive the current; the cascade current source circuit being coupled to the cascade current sink circuit by a current switching circuit being provided by a positive voltage supply from the cascade current source circuit and with complementary logic signals, the current switching circuit configured to provide a constant differential output voltage while in operation. Other embodiments are also disclosed. | 04-09-2009 |
Sankara Reddy S. Kommareddi, Bangalore IN
| Patent application number | Description | Published |
|---|---|---|
| 20100308663 | ISOLATING FAULTY DECOUPLING CAPACITORS - The present invention generally provides a decoupling capacitor circuit that is configured to determine whether a decoupling capacitor is defective. Upon determining that the decoupling capacitor is defective, the decoupling capacitor circuit may disconnect the decoupling capacitor from both, a positive segment and a negative segment of a power grid. In some embodiments, the decoupling capacitor circuit may be configured to reconnect the decoupling capacitor to the power grid upon receiving a reset signal. | 12-09-2010 |