AMEREN CORPORATION Patent applications |
Patent application number | Title | Published |
20130089373 | SYSTEMS AND METHODS FOR VENTING GAS IN THE EVENT OF AN EXPLOSION IN A SPACE COVERED BY A MANHOLE COVER - A closure is adapted to limit damage from a gas explosion in an underground space. The closure includes a telescoping sleeve having a plurality of vents extending radially through the sleeve. The sleeve defines a manhole extending axially through the sleeve so a person can enter the underground space through the manhole. A manhole cover is moveable to a closed position in which the cover is supported on an upper end of the sleeve and covers the manhole. The sleeve can be received in an opening of a frame of a manhole installation so the sleeve is moveable by gas pressure to an extended position in which gas from the underground space can be vented through the sleeve to an aboveground space. If desired, the sleeve can be installed in an existing manhole installation to upgrade the installation to have an explosion mitigation capability without replacing the conventional manhole cover. | 04-11-2013 |
20110076102 | METHOD AND SYSTEM FOR MOVING A LARGE TEMPORARY BUILDING - A method and system for moving a large temporary building from a first location to a second location, while the building remains erect, are disclosed. The invention is particularly suited for moving such a building during the remediation of a contaminated waste site. | 03-31-2011 |
20090090799 | SYSTEMS AND METHODS FOR GRINDING COAL WITH SECONDARY AIR BIAS AND BOWL PRESSURE CONTROL LOOPS AND PERFORATION PLATES - A grinding system includes a mill housing. A milling unit in the housing has a moveable milling member operable to grind coal. A drive system includes a drive shaft and at least one gear in a gear case drivingly connecting the milling member to the drive shaft. An exhauster is operable to draw air into the housing through an inlet and draw a mixture of air and powdered coal out of the housing through an outlet. A pressurization system is operable to maintain the gear case pressure at a higher pressure than an air pressure in the housing. In one method of grinding coal a gear case pressure is maintained at a pressure higher than a pressure at the housing inlet while the milling member grinds coal into a powder and the exhauster draws a mixture of powdered coal and air out of the housing. | 04-09-2009 |
20080277616 | EROSION RESISTANT POWER GENERATION COMPONENTS - A power generation system valve stem comprising a nickel-based substrate and a WC-based coating thereon, wherein the WC based coating comprises WC particles in a matrix of Ni and/or Co wherein the average interfacial spacing between the WC particles is between 5 microns and about 20 microns on average. | 11-13-2008 |