Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7204061 | Fireproof structure and installation method for protecting water pipes A fireproof structure protects water pipes with stable durability even in a high temperature gas environment. Even in a case where it falls off, it does not leave the water pipes suddenly exposed. The fireproof structure for protecting water pipes 25B install... | 04/17/2007 |
| 7178299 | Tiles with embedded locating rods for erosion resistant linings A tile for lining an internal surface in a heavy wear area. The tile includes at least one locating rod embedded within said tile and an internal mechanism for laterally extending said at least one locating rod out of said tile and into a gap in an adjoining structu... | 02/20/2007 |
| 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 |
| 6360700 | Refractory lining for tubular wall A refractory tube wall lining comprises a multiplicity of refractory tiles (1) which are arranged next to and above one another and each have two T-shaped slots (16) which extend over the entire height of the tile. The tiles (1) are held on the lined tube... | 03/26/2002 |
| 6273030 | Spacer bar with tube sleeve and tab A spacing arrangement for tubes of a reheater or superheater tube section uses a spacer bar that is sufficiently long to span a space across a plurality of tubes in the tube section. The spacer bar has a plurality of holes therein which are spaced apart b... | 08/14/2001 |
| 6267066 | Refractory tile system for boiler tube/heat exchanger A refractory tile system includes a barrier layer coating applied to the wall (membrane and waterwall or tube wall) of a boiler of an incinerator or heat exchanger. Refractory tiles are then fastened to the tube wall utilizing a floating attachment mechan... | 07/31/2001 |
| 6012401 | Water pipe protecting refractory structure A heat-resistant assembly to shield boiler tubes which does not entail a thick heat-resistant block. This structure would be interposed between the boiler tubes and the combustion gases. Such a structure would be distinguished by the fact that it comprise... | 01/11/2000 |
| 4809621 | Refractory brick protection for membrane boiler walls Refractory bricks, suspended wall of refractory bricks, and a method for mounting refractory bricks for protection of membrane boiler tube walls. The pre-fired brick has a rectangular generally flat exterior face, a top face having an upper groove extendi... | 03/07/1989 |
| 4768447 | Fire-brick for refractory protection walls of ovens, furnaces and combustion chambers A method of building refractory protection walls of furnaces, ovens or combustion chambers, notably but not exclusively for boilers for incinerating garbage and refuse, is proposed for protecting the hearth walls by means of a refractory wall (4) consisti... | 09/06/1988 |
| 4033297 | Protection of superheater tubes against corrosion This invention relates to panels comprising a rigidly interconnected set of metal tubes with a continuous sheet of a refractory lining material which has a satisfactory thermal conductivity and is chemically inert with respect to combustion products cover... | 07/05/1977 |
