1825 results about "Double wall" patented technology

A vacuum processing apparatus includes a vacuum processing chamber having a processing table for supporting an object to be processed and carrying out processing using a gas. The vacuum processing chamber has an axisymmetric structure, including a double wall structure, and a gate valve for sealing an opening through which the object enters the processing chamber.

A double walled stent system particularly suited for treating abnormalities of the right ventricular outflow tract is disclosed having an exterior stent component and an interior stent component. The exterior stent component is secured to the interior stent component in a non-fixed, sliding relationship. The exterior stent component includes a plurality of longitudinally-extending connectors such as straight or sinusoidal bands. The interior stent component has a generally tubular cylindrical body and is centered within the exterior stent component. The stent system has a contracted delivery configuration and a radially expanded configuration for contacting the vessel wall. When deployed, the longitudinally-extending connectors of the exterior stent component come in contact with the vessel wall and fix the stent system to the treatment site. The interior stent component also radially expands but remains centered inside the exterior component and makes little to no contact with the vessel wall.

An electric drive unit includes an electronic control and monitoring module integrally connected to an electric motor. The housing of the electric motor has a double-walled construction to form a water jacket with cooling water passages therein. The electronic module includes at least one high power component that requires cooling. This component is mounted directly on a cooling insert that extends through a recess in the electronic module housing and is inserted in an opening provided in the outer wall of the motor housing. In this manner, the cooling insert is integrated into the water jacket of the motor housing and is directly cooled by the cooling water flowing in the cooling passages. A very compact and reliable construction is achieved, in which the electric motor and the electronic module share a common water cooling circuit. External water hoses and external electrical connections between the electric motor and the electronic module are avoided.

A double walled stent system particularly suited for treating abnormalities of the right ventricular outflow tract is disclosed having an exterior stent component and an interior stent component. The exterior stent component is secured to the interior stent component in a non-fixed, sliding relationship. The exterior stent component includes a plurality of longitudinally-extending connectors such as straight or sinusoidal bands. The interior stent component has a generally tubular cylindrical body and is centered within the exterior stent component. The stent system has a contracted delivery configuration and a radially expanded configuration for contacting the vessel wall. When deployed, the longitudinally-extending connectors of the exterior stent component come in contact with the vessel wall and fix the stent system to the treatment site. The interior stent component also radially expands but remains centered inside the exterior component and makes little to no contact with the vessel wall.

A seat frame for a vehicle or other seating comprises a seat back and a seat pan formed of molded double wall members having thin, substantially closed exterior walls and a substantially open interior. The exterior walls include front and back sections having a cavity therebetween, secured together to form a hollow, box beam type of structure. Integrally formed, spaced cup-shaped standoffs extend between the front and back sections between side walls thereof and provide internal reinforcement of the seat member between the side walls. The seat back includes a cavity for a seat back reinforcement member for either a restraint or non-restraint seat.

A double walled stent system particularly suited for treating abnormalities of the right ventricular outflow tract is disclosed having an exterior stent component and an interior stent component. The exterior stent component includes a plurality of longitudinally-extending connectors such as straight or sinusoidal bands. The interior stent component has a generally tubular cylindrical body and is centered within the exterior stent component. The stent system has a contracted delivery configuration and a radially expanded configuration for contacting the vessel wall. When deployed, the longitudinally-extending connectors of the exterior stent component come in contact with the vessel wall and fix the stent system to the treatment site. The interior stent component also radially expands but remains centered inside the exterior component and makes little to no contact with the vessel wall.

A box for shipping temperature sensitive or perishable goods made from a double walled combined web having an inside barrier layer, a first paper liner bonded to the inside barrier layer, a first paper flute medium bonded to the first paper liner, an outside barrier layer, a second paper liner bonded to the outside barrier layer, a second paper flute medium bonded to the second paper liner, and a sandwich of a barrier layer bonded between third and fourth paper liners. The flute mediums are bonded, respectively, to the third and fourth paper liners.

A box for shipping temperature sensitive or perishable goods made from a double walled combined web having an inside barrier layer, a first paper liner bonded to the inside barrier layer, a first paper flute medium bonded to the first paper liner, an outside barrier layer, a second paper liner bonded to the outside barrier layer, a second paper flute medium bonded to the second paper liner, and a sandwich of a barrier layer bonded between third and fourth paper liners. The flute mediums are bonded, respectively, to the third and fourth paper liners.

Single-walled carbon nanotubes have been synthesized by the catalytic decomposition of both carbon monoxide and ethylene over a supported metal catalyst known to produce larger multi-walled nanotubes. Under certain conditions, there is no termination of nanotube growth, and production appears to be limited only by the diffusion of reactant gas through the product nanotube mat that covers the catalyst. The present invention concerns a catalyst-substrate system which promotes the growth of nanotubes that are predominantly single-walled tubes in a specific size range, rather than the large irregular-sized multi-walled carbon fibrils that are known to grow from supported catalysts. With development of the supported catalyst system to provide an effective means for production of single-wall nanotubes, and further development of the catalyst geometry to overcome the diffusion limitation, the present invention will allow bulk catalytic production of predominantly single-wall carbon nanotubes from metal catalysts located on a catalyst supporting surface.

A window frame incorporating a sliding sash, the frame providing increased water resistance by incorporating an integral J-rail return, the return portion of which has a double wall to provide a depending trough at the bottom of the frame with a wall forming a chamber including the trough, opening from the bottom of the frame into the chamber and from the bottom of the trough to the exterior to provide increased dam height against water backing up and spilling over the interior sill of the frame.

A non-ceramic, light-weight outdoor cooker made from formed sheet metal includes a double-walled kettle, with an inner wall spaced and insulated from an outer wall by an insulating layer. A domed lid is constructed similarly to the double-walled kettle and is hinged to the top of the kettle. By spacing the inner wall from the outer wall and providing an insulating layer, heat transfer to the outside of the cooker is greatly slowed. By constructing the structure of sheet metal, instead of ceramic, the cooker is light-weight, rugged, and economical to manufacture.

In this device for controlling the temperature of a battery of cylindrically-shaped electrochemical cells placed side by side, heat is conveyed by the flow of a heat-conveying fluid, which flow takes place inside a double wall whose section is in the form of circular arcs interconnected at their ends so that the junction points between the arcs are substantially in alignment. Relief is disposed in a baffle configuration inside the double wall to constrain the fluid to flow parallel to said section, alternately in one direction and then in the opposite direction. The wall is disposed against the battery in such a manner that each of the circular arcs is disposed coaxially against one of the cells.

The present invention relates to a carbon-silicon composite material. It includes silicon matrix and carbon nano tube or nano carbon fibre grown on the matrix. The average grain size of the described silicon matrix is 100 nm-100 micrometer, the diameter of the described carbon nano tube or nano carbon fibre is 1-200 nm and its length is 1 nm-100 micrometer. The described carbon nano tube is single-wall, double-wall or multiwall. Said invention also provides its preparation method and concrete steps.

The exhaust sound and emission control system is a system for reducing sound and noxious emissions from an automotive exhaust. The system may have an exhaust resonator having one or more catalytic converter elements in combination therewith in a single device. Alternatively, the system may have multiple angularly disposed chambers therein, with a series of V-shaped baffles or guides in one of the chambers, thereby combining resonator and muffler functions in a single device. In another alternative, the system has a series of longitudinal tubes therein, in combination with a series of V-shaped guides or vanes, combining catalytic converter, muffler, and resonator functions in a single device. The various elements of the different embodiments, e.g. catalytic converter element(s), double wall shell, perforated tubes and multiple flow paths, interconnecting crossover tubes, etc., may be combined with one another as practicable.

An insulated food crate comprises a generally rectangular, typically cardboard box having separable top and bottom portions with double walls providing insulative properties and also insulating inserts fitted into the top and bottom portions. The box may also have ventilation holes or slots and / or compartments for serving utensils and may be disposable. In alternate embodiments, the insulated food crate may be made from a heat-resistant composite material, such as a reinforced plastic or stainless steel, as a more permanent, durable, and reusable solution. This inexpensive, accessible catering box keeps hot foods hot and cold foods cold while allowing quick and easy access to the foods inside.

Provided herein composition and methods for nanoporous membranes comprising single walled, double walled, or multi-walled carbon nanotubes embedded in a matrix material. Average pore size of the carbon nanotube can be 6 nm or less. These membranes are a robust platform for the study of confined molecular transport, with applications in liquid and gas separations and chemical sensing including desalination, dialysis, and fabric formation.

A double walled polycarbonate liquid holding vessel. The vessel may have an inner wall and an outer wall that are coupled to each other in a manner that defines an air tight gap therebetween. A resealable unit may be provided with the vessel that permits resealable access to the interior of the inner wall. The outer wall may be multi-section or single section, and various techniques may be used to conceal joints used to mount the outer wall to the remainder of the vessel. Various embodiments are disclosed.

The invention discloses a graphene and carbon nanotube mixed enhanced metal-matrix composite material and a preparation method thereof. The graphene and carbon nanotube mixed enhanced metal-matrix composite material is characterized in that graphene and a carbon nanotube are mutually connected to constitute an enhanced network in a metal matrix, wherein the graphene is few-layer graphene with 10 layers or less, the radius-thickness ratio of the graphene is larger than 200, and the volume fraction of the graphene is 0.1-1%; and the carbon nanotube is a single-wall, double-wall or multi-wall carbon nanotube, the length-diameter ratio of the carbon nanotube is larger than 20, and the volume fraction of the carbon nanotube is 0.5-5%. Compared with the composite material enhanced only by the carbon nanotube, the graphene and carbon nanotube mixed enhanced metal-matrix composite material disclosed by the invention not only has greatly improved mechanical properties, but also has more excellent electric conduction and heat conduction properties, and is a multi-purpose structure and function integrated material. In addition, the preparation method provided by the invention based on slurry blending and graphene oxide reduction is simple and efficient and is easy for large-scale production.

A low depth tray for bottles is provided which includes a first pair of opposed walls, a second pair of opposed walls attached to the first pair of opposed walls to form a wall structure, and a base attached to the wall structure. At least one interior column projects upwardly within the wall structure, where the interior column has a height less than the height of bottles loaded in the tray. A plurality of interior divider walls of double-walled construction project upwardly from the base and extend between the one or more interior columns and the wall structure. Together, the divider walls, interior columns, base, and outer wall structure define a plurality of bottle retaining pockets, where each pocket includes at least one divider wall and is sized to receive a single bottle therein.

A pyrolyzer and method is provided for devolatizing coal and other volatile materials. The pyrolyzer has a pyrolyzer furnace housing having at least two screws laterally positioned adjacent and overlapping rotatably mounted within the furnace for moving volatile material through the pyrolyzer furnace housing. The screws have hollow drive shafts with a diverter inside for converging heated fluid to heat the volatile material moving through the pyrolyzer furnace housing. A combustion chamber combusts fuel to create heated exhaust gas for directing through the hollow drive shafts to heat the volatile material. The pyrolyzer furnace housing may have a double wall with a cavity between, capable of receiving heated fluid for further heating of volatile material moving through the pyrolyzer furnace housing.

Disclosed and claimed are cap (120), skullcap (200), hat (270), and hat insert (350) devices comprising a weight-increasing layer, such as an elastomeric weight layer (114, 214, 350, 414, 454, 514). The elastomeric weight layer (114, 214, 350, 414, 454, 514) is comprised of an elastomer and weighted bodies. In some embodiments the weight-increasing layer is shaped to conform to the crown of the head of a person wearing headwear of the present invention. In other embodiments a weighted component fits within a hat. Other forms of the weight-increasing layer include a double-walled bladder structure (700), shaped to conform to a person's head, into which weighted material is added. Exercise with such devices serves to increase the bone strengthening weight stress experienced by the wearer's spinal column and to encourage the wearer to maintain an improved, healthier posture.

A set of extruded panels is provided which can be assembled on site to create a permanent form-work for concrete. The set includes inside and outside extruded side wall panels which are arranged to be connected edge to edge to form inside and outside walls. Longitudinally spaced connecting wall panels span between the inside and outside walls at spaced positions across the width of the walls to hold the walls apart and define a hollow interior therebetween including a plurality of interconnected cells with a plurality of holes for communication of concrete and reinforcing bars between each cell and the next. Each connecting wall panel has T-shaped connectors at each edge for attachment to corresponding C-shaped receptacles on the side wall panels. Rigid foam insulation is inserted at the outside wall. The inside wall panels are arranged to support without bowing cast concrete poured into the interior within each cell and three different arrangements are shown to support the inside wall each including a wall portion at right angles to the inside wall and between the connecting walls. In one, an integral double wall is provided. In a second, a short support wall extends to a supplementary wall parallel to the inside wall and in the third, a support wall identical to the connector walls spans between the inside and outside walls.

An auxiliary molded floor mat is produced to fit the carpeted floor compartment area of a van, pickup truck, sport utility vehicle or other vehicle having a floor which is substantially flat and even with a door sill. The floor mat is a one piece composite of a tufted carpet layer, a thermoplastic mid-layer and a non-slip substrate bottom layer. The floor mat has a flat base with raised walls near each of its outside edges which form a tray-like central area. At least one of the raised walls is double walled with a substantially horizontally extending floor engaging peripheral lip. Molding of the composite imparts a desired contoured shape which neatly fits the vehicle's floor compartment area without substantial folds or wrinkles. The tray-like central area of the floor mat catches debris. It is readily cleaned simply by removing the full mat from the vehicle.

An exhaust system component (18, 10) for use in an exhaust system of a motor vehicle. The exhaust system component comprises a double wall surrounding a space (9, 11; 21) through which exhaust gas may flow when the exhaust system component is in use in an exhaust system. The double wall is comprised of a first and second metal wall (12, 14; 26, 28) that define between them a gap. The gap comprises an insulation material (16) made of chopped aluminium or magnesium aluminium silicate glass fibers. The insulation material can be in the form of, for example, an end cone perform. The exhaust system component can be an exhaust pipe (18).

A container according to a preferred embodiment of the present invention provides an inner wall and an outer wall wrapped therearound so as to define a double-wall container construction. A plurality of spacer elements are interposed between the inner and the outer walls so as to maintain a minimum thickness of an air space defined therebetween. In normal use conditions, the spacer elements do not contact the inner wall; however, the spacer elements prevent the outer wall from contacting the inner wall during non-standard use conditions.

An aircraft aerial refueling system includes a fuel tank positioned in at least an aircraft wing to store fuel. At least two fuel pumps operate to transfer the fuel from the tank to a remotely located refueling connection. At least one electrically controlled valve provides each of an open position permitting fuel flow and a closed position isolating fuel flow between the tank and the refueling connection. A computer system automatically varies operation of any quantity of the fuel pumps and controls the electrically controlled valve between the open and closed positions during fuel transfer to the refueling connection. The system also includes double wall fuel pipe manifolds in manned spaces of the aircraft.