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A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
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| Number | Title | Issue Date |
| 7305803 | Block construction system A block construction system includes interlocking, self-aligning blocks that can be used to construct structures with mortarless joints. A typical block has a top face that is formed with a raised, substantially flat horizontal portion that extends between a pair of... | 12/11/2007 |
| 6066236 | Coke oven wall with a plurality of flue cavities A coke oven wall (4) comprising a plurality of bricks (38, 42, 46, 120) laid so as to define first and second wall faces (40, 44), and plurality of flue cavities (14) extending therein characterized in that at least part of the wall is made first, second ... | 05/23/2000 |
| 5443694 | Method of restoring heating walls of coke oven battery Renovation of a heating wall, in particular a heating wall head of a coke oven battery, includes starting with reconstruction of the wall to be renovated on a wall protective plate of the part, abutting a new masonry exactly on the wall protective plate, ... | 08/22/1995 |
| 5296102 | Dual chamber apparatus for recovery of oil from solid hydrocarbonaceus material A method of and apparatus for recovering oil from solid hydrocarbonaceous terial, such as oil shale, in particulate form using a combustion chamber and a reaction chamber arranged side-by-side and connected by a first passageway extending between the uppe... | 03/22/1994 |
| 5228955 | High strength coke oven wall having gas flues therein An improved coke oven wall constructed for refractory brick and having generally vertically extending gas flues formed therein employs different shaped brick to form the portion of the wall defining the flues in alternate courses of brick with the refract... | 07/20/1993 |
| 5137603 | Oven walls The invention provides a construction block useful in the construction of coke oven combustion chamber assemblies. The construction block is a rectangularly-shaped unit comprises: (a) an upper and lower wall surface, wherein the construction block's upper ... | 08/11/1992 |
| 4732652 | Clamping system for coke oven heating walls A clamping system for preventing detrimental tensile and shearing stresses in heating walls used for example as partitions in industrial furnaces, comprises clamping plates adjoining opposite end faces of a heating wall plate, yoke-shape beams facing each... | 03/22/1988 |
| 4727657 | Declined bed contactor An apparatus for contacting solids with gases, preferably a needle coke preheater, which includes an elongated housing having an entrance and an exit and means for introducing solids into the entrance of the housing. A bed support divides the housing into... | 03/01/1988 |
| 4661123 | Kiln for treating bituminous schists A kiln having pyrolysis, gasification and cooling horizontal zones, divided over its height into vertical chambers by vertical dividing walls, and having flues with vents housed in the dividing walls and the walls of the outer enclosure for injecting reac... | 04/28/1987 |
| 4565605 | Heating wall for coke-oven battery A pair of adjacent horizontal coking chambers of a coke-oven battery are separated by a longitudinal wall with a multiplicity of vertical heating ducts, the wall being built from blocks which form two parallel frameworks defining the ducts between them. E... | 01/21/1986 |
| 4564420 | Coke oven battery Coking chambers in a coke oven battery are disposed in an alternate relationship with heating flues. At the top of each coking chamber there is a top arch having an inner-arched surface defined by a segment of a circle whose diameter is greater than the i... | 01/14/1986 |
| 4545860 | Battery of coke ovens and a method for repairing them A construction for a battery of coke ovens and to a method for repairing m in which a continuous vertical joint plane is provided in the walls of the piers separating the ovens of the batteries, which walls are constructed of courses and headers and stre... | 10/08/1985 |
| 4445977 | Coke oven having an offset expansion joint and method of installation thereof An offset expansion joint and method of installing the same in a repaired or rebuilt furnace, such as a coke oven or the like, comprises at least two segments of ceramic fiber spaced laterally from one another and separated by silica bricks and a barrier ... | 05/01/1984 |
| 4299666 | Heating wall construction for horizontal chamber coke ovens A heating wall construction for horizontal chamber coke ovens comprises spaced apart stretcher stone walls with header walls extending therebetween and being spaced from each other to define vertical heating flues therebetween. The header walls are hollow... | 11/10/1981 |
| 4259159 | Method and apparatus for sealing the chambers of coke ovens A device for sealing the cambers of coke ovens adjacent the roof of the oven and above an oven door frame which is located at the transition between fireclay brickwork and silica brickwork each of which has joints between the courses thereof is located be... | 03/31/1981 |
| 4249997 | Low differential coke oven heating system A regenerative coke oven battery that produces a coke cake having a low vertical temperature differential throughout its mass. The heating flues are defined by header walls having ducts for air or lean gas and outlet slots incorporated along the vertical ... | 02/10/1981 |
| 4244786 | Double flue arrangement in heating walls for horizontal coke ovens Double heating flues are arranged transversely to the horizontal axes of coke oven chambers within heating walls therefor. Side walls between each double heating flue have an internal passageway in the lower part communicating by exit orifices at vertical... | 01/13/1981 |
| 4196052 | Heating wall construction, particularly for use in coking ovens A heating wall of a coking oven, particularly a horizontal coking oven, separates the coking chamber of the coking oven from the heating flues through which a heating medium flows to heat a charge of coking coal which is contained in the coking chamber. T... | 04/01/1980 |
| 4133720 | Support apparatus for a battery of underjet coke ovens Studs projecting downwardly from the decking carrying a battery of underjet coke ovens, all received in recesses in support walls which extend only in a parallel direction to the heating walls for the over chambers. Dampers are provided between the studs ... | 01/09/1979 |
| 4014750 | Support apparatus for a battery of coke ovens This disclosure relates to reinforced support walls arranged to extend transversely of the length of a battery of coke ovens in a cellar for supporting battery decking of underjet coke ovens. Ducts extend in the cellar for supplying gaseous combustion med... | 03/29/1977 |
