Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7966727 | Installation construction method for boiler facilities An installation construction method is provided for boiler facilities in which the boiler facilities include a boiler building configured of a steel structure, a boiler main unit to be installed within the boiler building, various types of equipment to be installed ... | 06/28/2011 |
| 7856716 | Method for assembling a plurality of tubes to a tubesheet A method for assembling a plurality of tubes to a tubesheet. A first end of each of the tubes is situated over a corresponding support rod that extends from a pattern block of the fixture. A first end of a plurality of locating members is inserted into a second end ... | 12/28/2010 |
| 7676925 | Lifting construction method and raising/lowering equipment of boiler module An interference with existing structures is prevented at a time of a lifting construction of a boiler module. When the boiler module is lifted from the ground by lifting jacks provided on a steel frame main-beam and made an install construction to the main-beam, lif... | 03/16/2010 |
| 7296349 | Method to assemble a steam generator When constructing a steam generator, buckstay modules are joined with tube wall units to form buckstay and tube wall modules while the boiler steel structure is being erected, and they are temporarily placed within the boiler steel structure level by level. Then an ... | 11/20/2007 |
| 7275503 | Heat transfer tube panel module and method of constructing exhaust heat recovery boiler using the module A method of constructing an exhaust heat recovery boiler. A required number of heat transfer tube group panel modules (20) are produced in an appropriate size according to design specifications of HRSG, where the heat transfer tube group panel modules (20 | 10/02/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7231714 | Corrosion-resistant exterior alloy for composite tubes An austenitic Ni—Cr—Fe alloy is provided as an exterior tube material for improved cracking and corrosion resistance of composite tubes used to construct the lower furnace section of kraft recovery boilers. The alloy consists of essentially, on a weight-% basis,... | 06/19/2007 |
| 6971169 | Heat-resistant assembly for protecting boiler tubes and method of assembling same This invention concerns a heat-resistant assembly having a heat-resistant block conformed to the contours of boiler tubes and the surface of their connecting rib. The heat-resistant assembly has an arm which protrudes from the surface of the rib toward the heat-resi... | 12/06/2005 |
| 6588104 | Process for assembling a steam generator During the assembly of a steam generator, the boiler columns are assembled, and, in parallel, headers and other wall boxes are assembled on booms of the boiler columns, so that when the boiler columns are completed, the headers and wall boxes are also fin... | 07/08/2003 |
| 6385841 | Method and apparatus for installing steam boiler tubes A method and apparatus are disclosed which are for use in installing the end segments of boiler tubes in the drum walls of a high-pressure steam boiler, and which involve expanding rather than swaging boiler tube end segment metal into intimate contact wi... | 05/14/2002 |
| 6260270 | Method and apparatus for short-term relining or construction of blast furnace Method and apparatus for short-term relining or construction of a blast furnace uses a grounding apparatus for grounding of ring-shaped blast furnace segments having shells and a casting floor present as a blast furnace floor for transferring the ring-sha... | 07/17/2001 |
| 6138353 | Method for repairing vertical welds in a boiling water reactor shroud A method of repairing a crack in a boiling water reactor shroud includes forming a pair of slots in the shroud on opposite sides of the crack in angled relation to one another so that the lateral spacing between the slots increases in a direction parallel... | 10/31/2000 |
| 5655299 | Method of fabricating a tank and method of fabricating a tank connector therefor The method of fabricating a tank connector assembly comprising the steps of first providing a metal spud member having an internally threaded portion and a cylindrical wall portion. Producing a sub-assembly comprised of an insert member having an internal... | 08/12/1997 |
| 5655297 | Method to part welded vessel sections without violating internal cleanliness A method and apparatus of separating a vessel which is partly welded to a tubesheet of a tube bundle, includes removing the weld seam and reducing the wall thickness of the vessel until only approximately 1/8" of wall thickness remains and thereafter part... | 08/12/1997 |
| 5501012 | Tank lining method Method of making a lined metallic water tank for a water heater, using the steps (a) making a metallic tank pre-form which is open at one end; (b) inserting a collapsible container through the open end into the pre-form; (c) drawing a vacuum on the contai... | 03/26/1996 |
| 5195502 | Down-fired U-tube water heater A down-fired water heater has a top storage tank head portion with a central opening bordered by an upstanding annular flange. Welded within this flanged opening is a generally pan-shaped tube sheet structure having an open top side, and a bottom side wal... | 03/23/1993 |
| 5052346 | Water heater foam dam and forming method A water heater is made by shielding the space between a tank and a jacket, which space is intended to include a control apparatus accessible from outside the jacket, by making and installing an insulating dam provided of flexible, deformable insulating ma... | 10/01/1991 |
| 5005529 | Modular heat recovery steam generator having parallel offset headers A modular type heat recovery steam generator (HRSG) utilizes multiple pairs of parallel offset upper headers and into which at least two rows of vertically-oriented tubes are connected also to a lower header. The upper headers in each pair are offset from... | 04/09/1991 |
| 5005530 | Furnace radiant sections with vertical heat exchanger tubing, and convection section The method of combining two furnaces into one, each furnace having a lower radiant section that includes upright walls and horizontal heat exchanger tubes, and an upper convection section, the lower section having associated fuel burners, including removi... | 04/09/1991 |
| 4976027 | Device for lining a peripheral tube of a steam generator A curved structure (20) with two flat side flanges and a curved bottom (23') connecting the flanges, each of which is associated with a curved guiding slide (24a,24b)is used for lining a peripheral tube of a steam generator. A trolley (21) having wheels (... | 12/11/1990 |
| 4969420 | Magnesium pressure vessel water tank This invention pertains to a magnesium water heater and a method of fabricating the same. The magnesium water heater of the present invention can be heated by an electric resistance element or a gas burner and has advantages over prior art water heaters i... | 11/13/1990 |
| 4966100 | Device for protecting screens in boilers, and in particular for garbage incinerators, and procedure for manufacture of this device Device for the protection of boiler screens, in particular for garbage incinerators, and manufacturing process for this device. Device for protection of screens used for heat-recovery boilers, composed of vertical tubes 1, 14 joined together using welded ... | 10/30/1990 |
| 4944254 | Device for suspending horizontal heat exchange tubes on a vertical carrier tube, and a method of manufacturing the device A device for suspending horizontal heat exchange tubes (7, 8) on a vertical carrier tube (1) comprises a bottom support sleeve (2) welded at its bottom edge around the support tube, a top support sleeve (4) having its bottom edge resting on the top edge o... | 07/31/1990 |
| 4934032 | Method of water heater construction A method of insulating a water heater of the type including an inner water tank and a surrounding outer shell which is spaced apart from the inner tank so as to define an annular clearance space therebetween includes the steps of providing a flexible enve... | 06/19/1990 |
| 4922605 | Device for lining a peripheral tube of a steam generator A liner (12) substantially smaller than the thickness of the tube plate (2) is inserted into the tube (8) so that, while one of its ends is in a region of the tube (8) inside the tube plate (2) and away from the entry face (2a), the other end of the liner... | 05/08/1990 |
| 4910848 | Method of assembling a boiler unit having pre-assembled walls Completely assembled wall modules including membraned tube panels, buckstays, doors, insulation and lagging for field-assembled boiler units are shipped to the installation site for field erection of the boiler unit.... | 03/27/1990 |
| 4893671 | Steam generator tube antivibration apparatus and method A steam generator has a bundle of U-shaped tubes arranged in spaced rows and columns with a pair of spaced rows of elongated primary antivibration bars installed between U-shaped portions of the tubes in the spaced columns and a pair of spaced retainer me... | 01/16/1990 |
| 4872249 | Tool support and guide system for repair of boiler tube panels and process for carrying out repair using same A tool support and guide assembly for use in repairing boiler tube panels includes a support carriage mountable upon a guide rail that has been previously installed to enable a panel saw tool to be guided along a straight cut line. The support carriage in... | 10/10/1989 |
| 4839951 | Process for the installation of tubes in a steam generator The process comprises introducing the tubes in the form of horizontal layers (the generator can be positioned horizontally for this purpose), installing anti-vibratory bars on the layers, placing weights on the bars and checking the clearances between the... | 06/20/1989 |
| 4829648 | Apparatus and method for simultaneously loading a reinforcing sleeve and mandrel into a tube An apparatus and method for remotely inserting and positioning a sleeve-loaded mandrel within a damaged tube mounted in the tubesheet of a nuclear steam generator is disclosed herein. The apparatus of the invention generally comprises a frame, a mounting ... | 05/16/1989 |
| 4829660 | System for removing a plug from a heat exchanger tube An improved system for removing a plug from the open end of a heat exchanger tube in a nuclear steam generator is disclosed herein. It is particularly adapted for removing a plug formed from an elongated, cylindrical shell of Inconel.RTM. having a closed ... | 05/16/1989 |
| 4827594 | Process for lining a peripheral tube of a steam generator A liner (12) substantially smaller than the thickness of the tube plate (2) is inserted into the tube (8) so that, while one of its ends is in a region of the tube (8) inside the tube plate (2) and away from the entry face (2a), the other end of the liner... | 05/09/1989 |
| 4813117 | Method for making antivibration bar A method is disclosed for making an apparatus for substantially eliminating flow induced vibrations of the flow tubes of a steam generator in the U-bend region. Antivibration bars are provided between columns of flow tubes in the U-bend region which are c... | 03/21/1989 |
| 4809645 | Device for shielding boiler baffles, in particular for refuse incinerator furnaces, and a method for the constructon of said device Vertical tubes joined to each other by means of welded coupling fins and forming boiler baffles for refuse incinerators are placed between refractory bricks and provided with vertical auxiliary anchoring fins which make an angle of 30° to 60° with the p... | 03/07/1989 |
| 4793044 | Process for remotely lining a steam generator tube of a pressurized water nuclear reactor A liner (12) is inserted into the water box (3) through the manhole (9) vertically in line with the manhole, and then the liner (12) is moved as far as a position situated vertically in line with the tube (8) to be lined. The operations of inserting the l... | 12/27/1988 |
| 4789028 | Anti-vibration bars for nuclear steam generators A method of forming and installing anti-vibration bars into a tube bundle of a steam generator is disclosed. The tube bundle comprises rows of tubes, each tube carrying a high temperature coolant. Each of the resultant anti-vibration bars has a tubular co... | 12/06/1988 |
| 4706356 | Process for compressing by hammering a steam generator tube set For the purpose of compressing by hammering a steam generator tube (1), a stream of gas at high velocity charged with particles having a particle size of between 50 and 500.10-6 m, is directed onto the inner surface of the tube (1) in radial di... | 11/17/1987 |
| 4675963 | Method of assembly of a steam separator super-heater This steam separator superheater comprises a horizontal axis cylindrical shell (1) enclosing in its lower portion a steam and moisture separator and in its upper portion a two-stage steam superheater resting on running paths supported half way up the shel... | 06/30/1987 |
| 4639992 | Corrosion resistant steam generator and method of making same A method for fabricating a steam generator and a steam generator wherein primary coolant tubes are sleeved in and in the vicinity of a tubesheet. A smooth transition region is formed between stock primary coolant tubes and sleeved portions thereof in such... | 02/03/1987 |
| 4440337 | Method of producing similar deep-drawn parts A method of producing similar deep-drawn parts for double-walled structural parts having uniformly spaced walls and edge welding. During every deep-drawing procedure, a respective planar outer plate, which is placed upon the lower part of the tool, as is ... | 04/03/1984 |
