MIDWEST SEALING PRODUCTS, INC.
MIDWEST SEALING PRODUCTS, INC. Patent applications | ||
Patent application number | Title | Published |
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20110210279 | Gas Valves for Pneumatic Devices - An improved valve assembly for routing gas, such as a high-pressure sour gas from an oil well, into a pneumatic device is disclosed. The pneumatic device may be in operational communication with an injection pump adapted to inject chemicals, such as methanol, back into the oil well. The valve assembly may be operated by a gas cylinder to direct the high-pressure gas from a pressure port into the intake pneumatic device and route the exhaust gas from the pneumatic device to an exhaust port. The valve assembly includes a valve element slidably disposed in a valve housing, wherein the valve element includes a frustoconical sealing surface that is complementary to a frustoconical valve seat provided on the interior surface of the valve housing. | 09-01-2011 |
20090159133 | Electro-Mechanically Controlled Ceramic Based Proportional Valve - An electromechanically-controlled ceramic based proportional valve is disclosed. The apparatus may be manufactured with an accompanying ceramic pressure breakdown orifice pack. The apparatus is designed to utilize the wear-resistant properties of ceramic valve components to control the flow of high-pressure fluids using a servo-driven mechanical actuator. The apparatus is designed to control the closing of the poppet valve to prevent slamming of the poppet head into the poppet seat during closing, further preventing wear and tear on the apparatus components. The accompanying pressure breakdown pack is designed to systematically reduce high pressure and high velocity water flow through the device to allow the water to exit at a prescribed lower pressure and flow rate. The breakdown pack also prevents harmful cavitation in the valve assembly by handling the cavitation internally rather than allowing it to propagate itself through the entire valve assembly. The breakdown pack allows for the pre-filling of descaling spray headers in a steel mill descaling system. These headers need to be saturated with water prior to the high-pressure fluid entering the circuit | 06-25-2009 |