Abstract: The present invention provides a liquid fuel composition comprising: a) a base fuel suitable for use in an internal combustion engine; and b) one or more poly(hydroxycarboxylic acid) derivative having a terminal acid group having formula (III): [Y—CO[O-A-CO]n-Zp]m-X??(III) wherein Y is hydrogen or optionally substituted hydrocarbyl group, A is a divalent optionally substituted hydrocarbyl group, n is from 1 to 100, m is 1 or 2, Z is an optionally substituted divalent bridging group, p is 0 or 1, and X is terminal acid group or a group carrying a terminal acid group, wherein the terminal acid group is selected from carboxylic acid, carboxymethyl, sulphate, sulphonate, phosphate and phosphonate.

Abstract: Mixed alcohol formulas can be used as a fuel additive in petroleum, synthetic or bio-derived gasoline, diesel fuels, jet fuel, aviation gasoline, heating oil, bunker oil, coal, petroleum coke or as a neat fuel in and of itself. The mixed alcohol formulations can also be utilized as a thinning agent to improve the transportation of heavy petroleum crude oils or bitumen produced from tar sands. The mixed alcohol formulations can contain combinations of two or more, three or more alcohols, or blend of C1-C5 alcohols, or C1-C8 alcohols or higher C1-C10 alcohols in order to boost energy content. The primary benefits of mixed alcohols are increased combustion efficiencies, improved fuel economies, reduced emissions profiles and low production costs. These improved combustion efficiencies result in increased miles per gallon of blended fuel.

Abstract: The present invention relates to the field of fuel additives for hydrocarbon fuels that acts to enhance efficiency and/or reduce pollution. The fuel additive is a phosphorus-containing composition that can be dispersed in hydrocarbon fuels or liquid carriers for combustion with the fuel in a combustion zone.

Abstract: A fossil-fuel-fired system, which includes an emissions-control-agent dispenser, a furnace, an emissions monitor and, optionally, a controller, is disclosed. The emissions-control-agent dispenser provides a prescribed amount of organic-emissions-control agent, such as, for example, an opacity-control agent to the fossil-fuel-fired system. The furnace includes an exhaust communicating with the atmosphere. The emissions monitor is capable of measuring at least one property of the flue-gas communicated through the exhaust to the atmosphere. For example, when an organic-emissions-control agent is an opacity-control agent, the emissions monitor has the capability of at least measuring opacity. When included, the controller communicates with at least the emissions-control-agent dispenser and the emissions monitor.

Abstract: The invention concerns a weed control apparatus and a method for thermal weed control, wherein the weed control apparatus has a heating area to which is supplied secondary air, where the secondary air is preheated before introducing it to the heating area, where preheating of the secondary air is preferably effected by conducting it through a preheating area, where the preheating area includes one or more ducts which are preferably only separated from the heat exposure area by a heat conducting material, e.g. an iron sheet. The preheating of the secondary air with heat from the heat exposure area firstly contributes to recycling of the heat that otherwise would radiate off the top side of the apparatus. Secondly, the preheating of the secondary air, which includes combustion of gas or liquid, provides enhanced efficiency to heating means, as the amount of heat supplied via the secondary air reduces the need for combusting gas or liquid while simultaneously contributing to a complete combustion.

Abstract: An apparatus and method for growing plants in a growing room includes a hanging member having a substantially planar configuration, oriented vertically. At least one carriage is disposed on the hanging member to support growing plants. A nutrient delivery system has a conduit to deliver nutrients to the hanging member and to recycle any unused nutrients.

Abstract: A grass protection mat, used for protecting grass on golf courses, grass playing fields, park lawns, etc., or for promoting growth of grass, is provided. The grass protection mat is fixed to a ground surface through a mat anchoring member, and includes a body provided with a grass passage, a projecting column provided at a top of the body, a lug provided at a bottom of the body, and a mat ground anchoring means connected to the body, and configured with a portion to which the mat anchoring member is fixed upon mat installation and disposed at least below the body. The grass protection mat, due to its ground anchoring portions being disposed in closest possible proximity to the ground surface to improve anchoring to the ground when the ground anchoring portions are pressed during on-site installation, can offer superior results including effective prevention of being lifted, deformed, and disconnected.

Abstract: An enclosure for acclimatizing a micro-propagated plantlet includes a sealed growing chamber for the plantlet. The enclosure has a closable opening for providing nutrients to the plantlet and a humidity control to selectively reduce the humidity within the chamber over time to acclimatize the plantlet.

Abstract: A soil moisture sensing system includes a housing embedded in the soil and having a water chamber adapted to receive water from a water source. A controlled drainage assembly includes a semi-permeable membrane coupled to said water chamber for controllably releasing water from the water chamber. A magnetically actuated switch is coupled to a float in the water chamber to provide a control signal when the water level in the water chamber is at a predetermined level.

Abstract: The invention relates to methods, using a computer and software system, for providing real time running forecasts during an agronomic period of a capacity for absorbing nutrients by a plurality of fields according to an agronomic standard, and/or for providing a running real time forecast for a plurality of fields of capacity for absorbing nutrients by current status versus agronomic limit of a targeted substance.

Abstract: The invention has its object to arbitrarily adjust an amount of particles to be circulated without changing a flow rate of a gasification agent to thereby enhance gasification efficiency in a fluidized bed gasification furnace. The fluidized bed gasification furnace 107 comprises first and second chambers 113 and 114 in communication with each other in a fluidized bed 105. The hot particles 102 separated in the separator 104 and raw material M are introduced into the first chamber 113. The particles 102 introduced from the first chamber 113 through interior in the fluidized bed 105 to the second chamber 114 are supplied in an overflow manner to the fluidized bed combustion furnace 100.

Abstract: A method for producing methane (69) from a carbonaceous (22) material includes conveying pulverized carbonaceous material (28) entrained in an inert carrier fluid, such as carbon dioxide (36), into a reactor (34). The reactor (34) includes a vortex region (72) for receiving hydrogen gas (38) and imparting a swirling motion to the hydrogen gas (38). The pulverized carbonaceous material (28) is exposed to the swirling stream of hydrogen gas (38) in a first reaction zone (114) within the reactor (34) to form an exit gas (40) that includes methane (69). Remaining unreacted carbonaceous material (28) is further exposed to the hydrogen gas (38) in a second, low velocity, reaction zone (120). The methane rich exit gas (40) is subsequently extracted from the reactor (34) for further processing.

Abstract: An energy contained waste to energy process and system includes a waste treatment unit having a treatment chamber and including a pressurizing presser movably supported in the treatment chamber for pressing the energy contained waste in the treatment chamber until the air within the energy contained waste is squeezed out. A waste to energy conversion unit includes a conversion housing having a reaction chamber for receiving the energy contained waste from the treatment chamber, and a pyrolysis processor for pyrolysis processing the energy contained waste in the reaction chamber to decompose the energy contained waste into a fuel gas and powdered residue. An energy collection unit is communicated with the waste to energy conversion unit to collect the fuel gas and the powdered residue as an energy source for recycling use.

Abstract: A method for co-producing a sulfur-containing raw synthetic gas and an essentially desulfurized solid residue from a sulfur-containing heavy petroleum residue feedstock, comprising feeding a bubbling fluidized-bed gasification reactor with the feedstock, and converting the feedstock to a raw synthetic gas by a partial oxidation reaction in the presence of water at a temperature at or below about 1000° C. and a pressure at or below about 10 atm, thereby also producing an essentially desulfurized solid residue, while the sulfur components are essentially comprised in the raw synthetic gas; and separately recovering the essentially desulfurized solid residue and the sulfur-containing raw synthetic gas.

Abstract: The invention specifies an anti-trapping device (26), comprising a motor (M) for driving a pivotable actuating element (6) of a motor vehicle (2), a sensor (8) for contactlessly identifying an obstacle in the way of the actuating element (6) with an electrode (14), which has a plurality of segments (12), for producing an external electrical field with respect to a mating electrode (15) and a control unit (20). The electrode (14) extends in a radial direction (R) with respect to the pivotable actuating element (6) and is split in the radial direction (R) into the plurality of segments (12), which can each be evaluated separately for the purpose of generating an interference signal. The control unit (20) is designed to drive the motor (M) as a function of an interference signal from one of the segments (12). Such an anti-trapping device (26) has particularly high flexibility when driving the pivotable actuating element (6) if an obstacle in the way of the pivotable actuating element (6) has been detected.

Abstract: A light-emitter emits light into a door opening of an automatic door system. A light-receiver receives light from the light-emitter which has passed through the door opening and develops a light-reception indicative signal. A door controller causes the light-emitter to stop emitting light and, thereafter, start emitting light. An auxiliary sensor is judged to be operating in order when the light-receiver does not develop light-reception indicative signal in a state where the light-emitter is not emitting light, and, thereafter, develops a light-reception indicative signal when the light-emitter resumes emitting light; otherwise, the auxiliary sensor is judged to be out of order.

Abstract: The invention relates to a regulating valve, which is attachable, in particular in a bore of a hydraulic door closer, executed with a female thread. The regulating valve has a body, adjoined by a regulating area, and a thread provided with an anti-rotation means. The thread with the anti-rotation element can be screwed into the female thread of the bore of the hydraulic door closer. In order to provide a regulating valve with a simple design while excluding unwanted adjustment of the regulating valve during the operation, the anti-rotation means includes a raised area, which can cooperate with the bore or the female thread of the door closer.

Abstract: A battery cover latch mechanism is configured for detachably assembling a battery cover on a housing. The battery cover latch mechanism includes a button, an assembly portion including two blocks positioned on the housing, a latching part positioned on the battery cover; and a resilient member secured on the button and latching to the blocks to provide a resilient force to the button. The button releasably latches to the latching part to lock the battery cover to the housing or release the battery cover from the housing. The invention also discloses a portable electronic device using the battery cover latch mechanism.

Abstract: A method and apparatus for a tracking door centering system. An apparatus may comprise an elongate member, a first centering track, and a second centering track. The elongate member may have a first end and a second end capable of being rotatably mounted to a door along an axis that may be substantially parallel to a horizontal centerline. The first centering track may be mounted on the first end. The second centering track may be mounted on the second end. The first centering track and the second centering track may be movable to reduce rotational movement of the door during movement of the door about a vertical centerline when a first follower is engaged in the first centering track and a second follower is engaged in the second centering track.

Abstract: A cross arm module for a vehicle door is provided, the cross arm module having a plastic carrier plate configured to have a periphery to completely cover a periphery of an opening in an inner panel of the vehicle door, the plastic carrier plate having an inner surface and an outer surface; a window lift system mounted to the outer surface, the window lift system having a pair of cross arms each being pivotally secured to each other and movably secured to the outer surface for movement between a first position, wherein the window lift system is capable of being positioned such that no components of the window lift system extend past the periphery of the carrier plate and a second position wherein the window lift system is capable of extending past the periphery of the carrier plate; and a sealing member disposed about the periphery of the carrier plate, the sealing member providing a moisture barrier between the carrier plate and the opening in the inner panel.

Abstract: A security gate apparatus (10) with first and second buttress assemblies (12, 14) and a barrier member (16) slidably movable along the track 68 between a closed position extending between the assemblies (12, 14), and an open position clear of the assembly (14). Each assembly (12, 14) includes upstanding members (18, 20, 54, 56) connected respectively by a link member (22), with at least some of the members (18, 20, 54, 56 and 22) being filled in use by concrete. The gate being locatable respectively between the upstanding members (18 and 20) and the upstanding members (54, 56).

Abstract: The barrier operator system, method and kit described herein contemplate the use of a rack and pinion drive mechanism which is mounted on tracks of the operator system such that the pinion is positioned to ideally engage the rack which is coupled to the barrier to move the barrier along the tracks in both the upstream and downstream direction. Pre-positioning the pinion relative to the rack and using the rack and pinion drive as described herein permits coupling the rack and motor at any variety of points along the barrier to move it. Further when the barrier is an over head door, such as a garage door, the door is connected to the rack through a coupling assembly which connects the door to the rack without making the latter connection through the motor driving the pinion.

Abstract: The present invention is directed to a metal door. The door includes a pair of sheet metal door panels. Each of the door panels includes a central body portion with top, bottom and opposing side edges. The doors include an integral flange along each side edge of each panel. The integral flange extends generally perpendicular to the central body portion. An integral inturned lip can be located along each flange and extend substantially parallel to the central body portion. The door panels are positioned such that the central body portions are in an opposing spaced apart relation to one another with the flanges adjacent to and aligned with one another. The inturned lips are positioned in contacting face-to-face relation. The metal door also includes an elongate connector overlying and clamping together each face-to-face pair of inturned lips to maintain the door panels in assembled relation.

Abstract: A method of forming a composite polycrystalline aluminum containing grit can include forming a dispersion of alumina and gelling the dispersion of alumina to form a gel. A nitride abrasive particle can be added to either the dispersion of alumina or the gel. After the nitride abrasive particle has been added, the gel can be processed to form a composite polycrystalline alumina nitride grit.

Abstract: A wind turbine assembly is configured for standing on a foundation. The wind turbine assembly includes a wind turbine generator, and a tower having an upper end and a lower end. The tower is configured to support the wind turbine generator generally adjacent the upper end of the tower. The wind turbine assembly also includes a tower mount for supporting the tower. The tower mount has an upper end and a lower end. The upper end of the tower mount is connectable with the lower end of the tower and the lower end of the tower mount is mountable on the foundation to secure the wind turbine assembly on the foundation. The tower mount is tubular and has a height and an outer transverse cross-sectional dimension that is substantially greater than the height of the tower mount. The tower mount includes a plurality of circumferential segments that are connectable in generally end-to-end relationship to form the tubular tower mount.

Abstract: A sales and presentation area having an essentially annular region, wherein the annular region is rotatably mounted in the horizontal direction, divided into ring segments able to be moved individually in the vertical direction, and set into horizontal rotational movement via drives during use of the ring segments by customers, a changing section along the path of the moving annular region which is kept inaccessible for customers from the exterior of the annular region, a lifting and lowering device which is provided beneath the changing section and over which the ring segments slide in the course of the rotational movement of the annular region and on which the ring segments rest during a standstill of the annular region for moving the ring segments in the vertical direction, and rooms below the sales and presentation area, into which the ring segments may be pushed in the radial direction.

Abstract: A movable cover structure for a fixed ground area, such as a swimming pool cavity (4), has a platform (15) which is displaceable horizontally from a position where it covers the fixed ground area to a position where it is retracted clear of such area. Square section channels (10) are inset along the inner surfaces of opposed long vertical side walls of the cavity (4) and house guide tracks (11). Guide wheels (19) are provided along opposed long sides of the platform (15) and engage with the guide tracks (11). Movement of the platform (15) is effected by a motor (12a) driving toothed wheels (13) which engage with toothed racks (20) provided on the platform (15). In the retracted position the platform (15) is stowed beneath an adjacent horizontal flat floor surface (6) within an inner space (9) below the surface (6). Sensors are provided to detect the presence of persons in the swimming pool.

Abstract: A prefabricated structure comprises a shell including a shell frame and an extension deployable from the shell, the extension including an extension frame. The shell frame comprises a floor support including a plurality of slotted beams extending between and transverse to the floor beams, a roof support, and a plurality of columns extending between the floor support and the roof support. The extension frame comprises a floor support, a roof support with an extension roof, and a plurality of columns extending between the floor support and the roof support, wherein the slotted beams of the shell floor support each include a slot through which a column connected between an extension floor beam and an extension roof extends when the extension is nested within the shell in an undeployed position.

Abstract: A prefabricated structure comprises a shell including a shell frame and an extension including an extension frame deployable from the shell. The shell frame comprises a floor support, a roof support, and a plurality of columns extending between the floor support and the roof support, forming corners of the shell frame. A flange extends from at least one of the columns. The extension frame comprises a floor support, a roof support, and a plurality of columns extending between the floor support and the roof support, forming at least one corner of the extension frame. An outer lip is associated with at least one column of the extension farthest from the shell when the extension is deployed. An inner lip is associated with at least one column of the extension closest to the shell when the extension is deployed. The flange provides a first pocket for receiving the outer lip when the extension is seated within the shell and a second pocket receives the inner lip when the extension is deployed from the shell.

Abstract: A prefabricated structure comprises a shell including a shell frame and an extension deployable from the shell, the extension including an extension frame. The shell frame comprises a floor support, a roof support, and a plurality of columns extending between the floor support and the roof support. The extension frame comprises a floor support, a roof support, and a plurality of columns extending between the floor support and the roof support. The prefabricated structure further comprises a floor panel connected with the shell by a hinge to provide a floor for the extension, wherein the floor panel is undeployed when the extension is held in place within the shell by the extension, and wherein as the extension is deployed, the floor panel pivots at the hinge and the extension guides the floor panel to a deployed position.

Abstract: A prefabricated structure comprises a shell including a shell frame and an extension including an extension frame deployable from the shell. The shell frame comprises a floor support, a roof support and a plurality of columns extends between the floor support and the roof support, the plurality of columns including a “C” channel. A plurality of vertical structures extends between the floor support and the roof support, the vertical structures including a “C” channel. The extension frame comprises a floor support, a roof support and a plurality of columns extends between the floor support and the roof support, the plurality of columns including a “C” channel. The prefabricated structure further comprises a plurality of panels including an “L” channel extending from a side, the “L” channels receivable within the “C” channels so that the panels can be associated with the shell or the extension to form an outer wall.

Abstract: A computerized prefab architect design system (CPAD) and method for the fabrication of frame-structured buildings with all functions, including an integrating device for integrating building design elements including customer acknowledged floor plans, plumbing layouts, electricity wiring layouts and structure/strength parameters into an assembly drawing; a dividing device for forming segments and layouts of wall panels, floor/ceiling panels and roof panels, layouts of roof trusses, and segments and layouts of plumbing, wiring and jointers in accordance with a segmentation rule for buildings comprising a local building specification, segmentation based on a loading size of a shipping container, strength and structural requirements of buildings, requirements for convenient on-site work and flexible assembly lines at factories; a generating device for generating a polygon stencil for components of the prefab architect based on said segments and layouts, said stencil including building frames, functional boards t

Abstract: A system of cooperating prefabricated structures comprises a first prefabricated structure including a first shell and a first extension deployed from the first shell, wherein at least one of the first shell and first extension has a frame that forms a channel to communicate one or more of electrical wiring, a supply water duct, and a grey water duct. A second prefabricated structure includes a second shell and a second extension deployed from the second shell, wherein at least one of the second shell and second extension has a frame that forms a channel to communicate one or more of electrical wiring, a supply water duct, and a grey water duct. The electrical wiring of the first prefabricated structure and the second prefabricated structure are connected so that the first prefabricated structure and the second prefabricated structure share a common electrical system.

Abstract: This invention concerns an arch structure. In particular, the invention relates to an arch structure comprised of at least two segments which are rotatably linked to each other via hinges or equivalent means to form a continuous bendable chain of attached segments. The segments have magnets above the rotatable or hinged link on opposed end faces, positioned to oppose magnets on confronting end faces of adjacent arch segments, with like poles facing one another, thereby creating a repulsion force. The repulsion force inhibits the arch segments from being brought together and into contact. Due to this effect, the aggregate of the arch segments define an arcuate path (convex upward), maintained by the repulsion forces of the magnets.

Abstract: A shim is described that includes a plurality of snap lines extending along a length and/or width of the shim.

Abstract: A prefabricated structure having improved stability comprises a shell including a shell frame. The shell frame comprises a floor support, a ballast device including one or more ballast tanks provided in the floor support, and an extension deployable from the shell.

Abstract: An energy-saving house, has a main frame, an enclosed wall, a floor cover plate, a top cover plate, a separation wall, a bathroom, and stairs. The enclosed wall is assembled from multiple integral composite prefabricated external wallboards and fixed on the main frame via an energy-dissipating connector. The bathroom and the stair are integrally prefabricated and directly installed. The energy-saving house features low power consumption, high construction efficiency, short construction time, low noise, low dust, light weight, good anti-seismic performance, and small thermal conductivity and is applicable to multi-floor houses and high rise buildings.

Abstract: A roof eaves ice melting system comprising a heater between a base panel and a cover panel is disclosed. A method of installing such a system is also disclosed.

Abstract: A vapor retarder system includes a vapor retarder sheet. At least one and typically a plurality of parallel spaced-apart tie-straps are located adjacent an inner surface of the sheet, and the tie-strap extend across a width of the sheet and are connected to the sheet at multiple connection locations that are spaced from each other along a length of the tie strap. The sheet includes drape regions where the sheet is disconnected from the tie straps between successive connection locations. The tie-straps and drape regions ensure that the vapor retarder sheet is installed over roof purlins with the proper drape between the purlins to obtain the required insulation R-values. A fall-protection net or sheet can also be constructed and/or installed in the same manner.

Abstract: Fiber-reinforced pultruded planks serve as underlayment for tile, stone or terrazzo. In one embodiment, the planks have a thin base surface with a plurality of elongated ridges. The planks have interlocking tongue and groove edges. The elongated ridges have a narrow base and a wider distal portion wherein the areas between adjacent ridges have a trapezoidal cross sectional configuration with the thin base resting on the support. Tile can be adhered to the surface using a rigid cementitious adhesive which fills in the trapezoidal area, creating a very rigid support structure. If the planks are reversed with the ridges resting on the support, tile or stone can be adhered to the relatively smooth thin base with an epoxy adhesive.

Abstract: A method of manufacturing a stepped riser comprising providing a first sheet of metal with a layer of plastics or polymer material bonded to the metal with at least one indentation formed in the layer of plastics or polymer material thereby to allow bending of the sheet of metal along pre-determined lines substantially without inducing compression or tension through the thickness of the layer of plastics or polymer material.

Abstract: The invention relates to an assembly of a fixed pane on a car body flange and to a fastening clip for mounting the fixed pane which has a molding arranged on the pane circumferential edge and wherein on the molding at least one retaining member facing towards the body flange is provided for accommodating said fastening clip before the fastening clip for mounting the pane to the body flange is fixed in an insertion through-hole of the body flange in an automatically locking manner.

Abstract: Connectors for joining adjacent modular floor covering units. Embodiments of the connectors include a film and an adhesive layer coated on one side of the film. The connectors can have a conductive component that allows electrical continuity to be maintained between adjacent tiles. In yet another embodiment, the connectors can be equipped as radio frequency identification tags by including radio frequency transponders. To install tiles using the connectors, a first tile is placed on the floor and a connector is positioned so that the adhesive layer faces upward and does not contact the floor. The connector is typically positioned so that only a portion of the adhesive layer adheres to the underside of the tile, leaving the remainder of the connector extending from the underside of the tile. One or more tiles are then positioned adjacent the first tile so that a portion of the connector adheres to the adjacent tiles. In this way, the connectors span adjacent tile edges.

Abstract: A multi-unit building design has a system of contiguous dwelling units arranged to occupy a single story at a high density. Each unit includes a usable area defined by an area including a bed, a chair, a television area, and a writing surface. There is a non-usable area that includes a toilet and a shower stall. The usable area relative to the overall occupied area is at least greater than about 75 percent, and as high as about 85 percent of the overall occupied area.

Abstract: A distribution angle plate for a concrete floor system in a multi-level building is disclosed. The plate helps to create a joist bearing point at the interior surface of a vertical structural wall and proximate the top portion of the vertical structural wall. Decking may be laid flat over the top surface of the steel joist and the top surface of the vertical structural wall. This allows the decking to be screwed, welded, or shot directly to the top surface of the vertical structural wall and the top of the steel joist on the same horizontal plane. This also provides for a direct shear attachment at the perimeter of each vertical structural wall. Any height of concrete can then be poured on top of the decking, steel or wood, on a flat continuous plane. This creates a continuous solid mass between vertical structural walls in multi-story buildings, with no voids between floors.

Abstract: A pre-formed structural concrete element for use in the formation of a composite concrete floor of a building or the like, the element comprising: a generally planar base portion having opposing faces; a series of generally parallel spaced apart formations extending from one said faces of the base portion each defining along with an adjacent formation a void space therebetween and wherein the formations terminate in a plateau and have at least a narrow portion and a wide portion between the plateau and the one said faces of the base portion.

Abstract: A system for attaching non perfectly stretched suspended partitions made of a flexible web attached at the edges thereof to a frame attached to the walls or the ceiling of a room in a building, the frame including rails with a shoulder on which the edge bears, is characterised in that the edge has the shape of a hook and includes a wing through which it is connected to the web and a seam, The edge is made of a semi-flexible material and has a flexibility level such that the two branches a and are spread apart by at least 45° from each other after the edge has been inserted into the rail so that the portion of the inner face of the seam, located towards the free end of the seam is in contact with the shoulder and thus ensures a frictional blocking of the edge in the rail.

Abstract: A board comprised of a wood structure having a first surface, a second surface, a first lateral edge, a second lateral edge and opposing ends. Sound attenuating elements embedded within the wood structure and stiffening elements positioned within the wood structure to coincide with the location of floor joist to which the board will be secured. The boards further forming a ceiling/floor structure by laying a single set of the boards adjacent to each other and securing them to the floor joists.

Abstract: A protective barrier assembly is especially adapted for service tower installations. A pair of pre-cast quasi-U-shaped shells, mate to form a vertically extending enclosure. A pair of caps bridges the shells. A retention rim of the caps extends around the periphery of the enclosure at the upper end. A post for the service tower projects through an opening in the caps. The shells are substantially identical reinforced concrete structures. The caps may also be identical.

Abstract: Methods and apparatus are provided for making a fireproof panel. The fireproof panel includes a first ply of material and a ceramic material impregnating at least a portion of the first ply of material, the ceramic material formulated to resist loss of physical properties when exposed to temperatures of at least 1090° C.