Abstract: The present invention relates to a multilayer polyurea roofing system. An important aspect of the invention is the use of multilayers of polyurea with the base layer having a minimum thickness of 40 mils, thus forming a waterproofing membrane. The multiple layers of polyurea provide increased structural strength, as well as reduce failures caused by applicator error. Moreover, in applications where the polyurethane is applied to insulation board stock, the polyurea membrane is isolated from movements between the base insulation and the roof deck (i.e., wood, metal, concrete decking).

Abstract: A clamp device which is intended for clamping to the top of a door frame so that e.g. a swing can be suspended therefrom. The clamp device includes an elongate bar member 12. Slidably mounted on the bar 12 is a first engagement element 11 and a second engagement element 13. In use the shoulders 11a, 13a of the engagement elements 11, 13 hook over the top of the architrave of the door frame and the engagement elements 11, 13 clamp the door frame therebetween. The engagement element 13 is fixed in place on the bar 12 and the engagement element 11 is adjustable but lockable in the clamping position by a grab plate 21 engaged with the first engagement 11 by adjustment shaft 22. Mountings 28 are provided at each end of the bar 12 for attachment of the suspension cords of e.g. a swing.

Abstract: An improved towel with a top edge, first and second side edges and a bottom edge, is provided with a slit into the towel, the slit extending partially into the towel from one of the side edges and is disposed substantially parallel to the top and bottom edges. Reinforcement means include bias tape or piping on the slit edges and may be continuous. Attachment means may be provided at the two corners of the towel adjacent the slit.

Abstract: There is provided a method of producing a kaolin particulate material suitable for use as an improved super-calendered filler. This method includes: (a) preparing an aqueous feed suspension of kaolin; (b) treating the kaolin of the feed suspension by attrition grinding in a vessel using grinding media granules; (c) delivering an aqueous suspension of the kaolin ground in (b) to a particle size classifier and separating the kaolin of the suspension into a coarse fraction and a fine fraction; (d) returning an aqueous suspension of the coarse fraction produced in (c) to the grinding vessel to be further attrition ground; and (e) extracting an aqueous suspension of the fine fraction produced in (c) as a product suspension. Advantageously, the kaolin of the feed suspension in (a) is such that not more than 30% by weight has a particle size less than 2 &mgr;m and not more than 30% by weight has a particle size greater than 10 &mgr;m.

Abstract: A reactor chamber forms part of an exhaust system of an internal combustion engine. Within the chamber are electrodes between which there is disposed a bed of active material through which, in use, the exhaust gases pass. In the presence of an electrical discharge, driven by an electrical voltage applied across the electrodes, the active material has a catalytic action in the reduction of nitrogenous oxides in the exhaust and also acts to remove hydrocarbons from the exhaust gases.

Abstract: The space between parallel electrode plates (12, 13) of the reactor is dimensioned to make it possible to produce plasma at reasonable applied potential within the gas passages (15) of a monolithic substrate, such as a wallflow filter, in a slice (11) positioned between the electrode plates (12, 13).

Abstract: A system and method for manufacturing and wafer-level testing properties of a wafer comprises a chuck receiving a wafer to be tested and a pump light source directing an output beam toward selected locations on a wafer received on the chuck in combination with a laser light detector detecting light emitted from the wafer and a pump beam aiming mechanism selectively varying a position at which the pump light source output beam enters the wafer.

Abstract: A user is registered as a visitor to a site having one or more visitor destinations. After registration, the user is allowed to send and receive data relating to one or more of the visitor destinations (104) over a communications network (115). For example, a registered user may book an appointment at one of the destinations.

Abstract: A sleeve for an acoustic logging tool has a structure with a window section having fewer bars than a conventional sleeve separated by a slotted region with thin circumferential slots which are stress-relieved at the ends (“dumb-bell” shaped). Steel receiver mounts are provided for hydrophone pressure sensors and this, together with the axially oriented hydrophones makes the tool less susceptible to interfering vibration.

Abstract: A reactor (1) comprises a pair of electrodes (4, 13) spaced apart to provide a path therebetween for gas flow. A permeable mass of silicon carbide 816) is provided in the space between the electrodes (4, 13) for trapping carbonaceous material in the gas flowing through the space. The silicon carbide (16) is arranged to have an electrical resistivity which is sufficiently high to permit formation, when an appropriate electrical potential is applied across the electrodes (4, 13), of a plasma in the gas within the interstices of the silicon carbide through which the gas permeates.

Abstract: An insulating roll comprising: a metal conduit having an outer peripheral portion; a plurality of discs having outer peripheries and preferably fabricated from an inorganic material positioned axially on and around the metal conduit; a tubular shell having an inner surface about and spaced apart from said outer peripheries; metallic foils extending between each or a plurality of said discs from said outer peripheral portion to and beyond said outer peripheries to the inner surface of said tubular shell, said metallic foils being in interference or frictional contact with said inner surface. A novel method for attaching the tubular shell to the conduit to simplify removal and replacement thereof is also described.

Abstract: A plasma assisted reactor for the removal of carbonaceous combustion products or for simultaneous removal of carbonaceous combustion products and nitrogen oxides from the exhaust emissions from an internal combustion engine, wherein the reactor includes a gas permeable bed made at least primarily of an active material having the general formula A1-xA1xB1-yB1yO3 or MxM11-xVO3 or M4V2O7.

Abstract: An apparatus for gravel packing a production interval (42) of a wellbore (32) comprises first and second sand control screen assemblies (56, 58) connected downhole of a packer assembly (46) and a cross-over assembly (40) that provides a communication path (74) downhole of the packer assembly (46) for a gravel packing fluid and a communication path (92) uphole of the packer assembly (46) for return fluids. A wash pipe assembly (66) extends into the first and second sand control screen assemblies (56, 58) forming an annulus (84) therebetween. A valve (70) is positioned within the wash pipe assembly (66) in a location between the first and second sand control screen assemblies (56, 58). The valve (70) is actuatable from a closed position to an open position when the beta wave (100) is proximate the location of the valve (70).

Abstract: A spacer-connector stud comprises a stacked array of glass epoxy laminates, each laminate having a copper layer laminated thereto. The top and bottom laminates of the stud include a spatial array of thermal contacts suitable as a footprint for C4 bump technology. A location is selected on a circuitized base card to accommodate the laminated stud. The stud has a thickness greater than twice the thickness of the components attached to the card. The thermal contacts on the stud, typically solderable, join to a wiring array on the card. A second multi-chip module card having attached and interconnected components on both sides of the second card is mechanically aligned with the based card and pressed against the contacts on the top layer of the stud to form an assembly. The assembly is heated causing the second card to become soldered to the contact footprint on the stud.

Abstract: An improved towel has at least a top edge and first and second side edges, and contains an improvement, which includes a slit cut into the towel, the slit extends partially into the towel from the top edge and is disposed substantially parallel to the side edges, the towel further includes a reinforcement means located on the towel substantially adjacent to an end point of the slit, and an attachment means coupled to two corners of the towel.

Abstract: A system and method for manufacturing and wafer-level testing properties of a wafer comprises a chuck receiving a wafer to be tested and a pump light source directing an output beam toward selected locations on a wafer received on the chuck in combination with a laser light detector detecting light emitted from the wafer and a pump beam aiming mechanism selectively varying a position at which the pump light source output beam enters the wafer.

Abstract: A safety interlock system for a motor vehicle having a braking system capable of actively applying the vehicle brakes with an object sensor capable of detecting the presence of an object such as a pedestrian in the danger zone at the front of the vehicle, a door sensor capable of detecting the open or closed state of the vehicle exit doors, an interlock override switch and a control circuit. The control circuit is capable of activating the safety interlock system when a door open signal is received from said door sensor. When the safety interlock system is activated the control circuit is capable of activating the vehicle brakes to prevent motion of the vehicle when an object signal is received from the object sensor. The control circuit deactivates the safety interlock system at a predetermined time after receiving a door closed signal or an override signal.

Abstract: An apparatus for gravel packing a production interval (42) of a wellbore (32) comprises first and second sand control screen assemblies (56, 58) connected downhole of a packer assembly (46) and a cross-over assembly (40) that provides a communication path (74) downhole of the packer assembly (46) for a gravel packing fluid and a communication path (92) uphole of the packer assembly (46) for return fluids. A wash pipe assembly (66) extends into the first and second sand control screen assemblies (56, 58) forming an annulus (84) therebetween. A valve (70) is positioned within the wash pipe assembly (66) in a location between the first and second sand control screen assemblies (56, 58). The valve (70) is actuatable from a closed position to an open position when the beta wave (100) is proximate the location of the valve (70).

Abstract: A spacer-connector stud comprises a stacked array of glass epoxy laminates, each laminate having a copper layer laminated thereto. The top and bottom laminates of the stud include a spatial array of thermal contacts suitable as a footprint for C4 bump technology. A location is selected on a circuitized base card to accommodate the laminated stud. The stud has a thickness greater than twice the thickness of the components attached to the card. The thermal contacts on the stud, typically solderable, join to a wiring array on the card. A second multi-chip module card having attached and interconnected components on both sides of the second card is mechanically aligned with the based card and pressed against the contacts on the top layer of the stud to form an assembly. The assembly is heated causing the second card to become soldered to the contact footprint on the stud.

Abstract: A system and method for producing an employee yellow pages is disclosed. The employee yellow pages is based in part on information that is generated through the participation of individuals in a collaborative work environment.