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Class Information
Number: 122/512
Name: Liquid heaters and vaporizers > Tube sheets
Description: Subject matter relating to structure of the tube sheet for boilers not of general application.

Patents under this class:

Patent Number Title Of Patent Date Issued
8439102 Vector tile, refractory assembly unit including same and refractory array including same May. 14, 2013
8333170 Buckstay system Dec. 18, 2012
7574981 Apparatus and method for improving the durability of a cooling tube in a fire tube boiler Aug. 18, 2009
6971169 Heat-resistant assembly for protecting boiler tubes and method of assembling same Dec. 6, 2005
6837015 Installation method of fireproof structure for protecting water pipes Jan. 4, 2005
6810101 Heat exchanger tube support structure Oct. 26, 2004
6591790 Fire-resistant structural body supporting metal bar for protection of water pipe Jul. 15, 2003
6491000 Wall protection from downward flowing solids Dec. 10, 2002
6412548 Water tube protective refractory structure and method of assembling the same Jul. 2, 2002
6360700 Refractory lining for tubular wall Mar. 26, 2002
6173682 Tubesheet and tube protector device and a method for making such a device Jan. 16, 2001
6152087 Boiler tube protector and a method for attaching such protector to a boiler tube Nov. 28, 2000
6044805 Wall protection from downward flowing solids Apr. 4, 2000
5975030 Low-pressure feedwater preheater Nov. 2, 1999
5775269 Boiler protection tube assembly Jul. 7, 1998
5570741 Water compartment for a heat exchanger Nov. 5, 1996
5423294 Furnace tile and expansion joint Jun. 13, 1995
5385122 Device for adjusting a supply water flowrate in a steam generator tube Jan. 31, 1995
5154139 Refractory tube block Oct. 13, 1992
5146878 Boiler and a supported heat transfer bank Sep. 15, 1992
5136985 Boiler tube support Aug. 11, 1992
5133299 Tubesheet cover plate Jul. 28, 1992
5092278 Non-welded attachment tube support lug casting Mar. 3, 1992
5088551 Heat exchanger for cooling hot reacting gas Feb. 18, 1992
5042433 Device for stabilizing the tubes of the bundle of a steam generator having anti-vibration bars Aug. 27, 1991
4961402 Device for suspending a horizontal heat exchange tube on a vertical support tube Oct. 9, 1990
4777911 Stayrod configuration for facilitating steam generator sludge lancing Oct. 18, 1988
4718377 Device for placing a cylindrical body, especially a sleeve, in a tube of a steam generator Jan. 12, 1988
4704994 Flow boosting and sludge managing system for steam generator tube sheet Nov. 10, 1987
4690206 Nuclear steam generator wrapper barrel/tube support plate connection assembly and radial tuning method for assembling same Sep. 1, 1987
4644908 Steam generator wrapper closure and method of installing the same Feb. 24, 1987
4638768 Steam generator tubesheet/channel head/centerstay assembly Jan. 27, 1987
4628870 Model steam generator having means to facilitate inspection of sample tubes Dec. 16, 1986
4627386 Steam generators and combined cycle power plants employing the same Dec. 9, 1986
4579087 Corrosion resistant steam generator and method of making same Apr. 1, 1986
4538550 Casing seal attachment Sep. 3, 1985
4537157 Vertical, collector-type high-pressure feed water preheater, with a desuperheater casing Aug. 27, 1985
4522157 Convection section assembly for process heaters Jun. 11, 1985
4503903 Heat exchanger tube sheet radial support Mar. 12, 1985
4441544 Waste heat recovery system having thermal sleeve support for heat pipe Apr. 10, 1984
4423703 Steam generator or like apparatus including self-cleaning heating element support arrangement Jan. 3, 1984
4408570 Tube hanger for steam generator Oct. 11, 1983
4368695 Supporting the weight of a structure in a hot environment Jan. 18, 1983
4347810 Combustion chamber wall Sep. 7, 1982
4246872 Heat exchanger tube support Jan. 27, 1981
4186799 Slab header Feb. 5, 1980
4170263 Tube sheet connection to vessel containing a bundle of tubes Oct. 9, 1979

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