1680results about "Noise reduction construction" patented technology

Described are polyester compositions comprising at least one polyester which comprises terephthalic acid residues, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and 1,4-cyclohexanedimethanol, wherein the inherent viscosity and the Tg of the polyester provides for certain polyester properties. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.

Described are graphic art films comprising polyester compositions comprising polyesters which comprise (a) a dicarboxylicacidcomponent having terephthalic acid residues; optionally, aromatic dicarboxylic acid residues or aliphatic dicarboxylic acid residues or ester residues thereof; 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and 1,4-cyclohexanedimethanol residues.

A sound absorbing structure includes a housing having a front face, and a side face which is provided perpendicularly around at least a part of an edge portion of the front face; a gas adsorption material for physically adsorbing gas in an interior space delimited by the front face and the side face of the housing, which gas adsorption material is placed in the interior space; sealing element for sealing the gas adsorption material from outside thereof; and an acoustic connection section for functioning as an acoustic mass so as to acoustically connect an exterior space and the interior space of the housing, which acoustic connection section is provided in at least one of the front face and the side face.

Described are polyester compositions comprising (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid or aliphatic dicarboxylic acid residues; minimal amounts of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; ethylene glycol, and optionally, 1,4-cyclohexanedimethanol residues.

A sound-proof wall made of FRP in the form of a sound-proof wall panel that comprises a core and skin members made of FRP positioned on both sides of the core and whose weight per nit area is within the range of 10-60 kg/m<2>; and a method of producing the same. This sound-proof wall, though light in weight, has a superior sound insulation property and will never corrode because it is made of FRP. Further, it has a high degree of freedom of engineering design including sound-proof property, design, and shape, capable of producing a desired sound-proof wall with case. Further, since it has a high specific strength, it is possible to attain a drastic weight reduction while retaining the necessary strength, and facilitate working, shorten construction time, and reduce construction cost.

A bastion including one or more free-standing structures for use in, for example, military applications and for force protection. The free-standing structures are made up of a plurality of pivotally interconnected fire resistant mesh covered wire panels and are filled with, for example, sand, crushed rock or granular materials.

A main structure that can be constructed using either solid steel assembly (32) or reinforced concrete assembly (33) acts as the main structural component for new and remodel construction. The main structure whether it uses assembly (33) or assembly (32) is comprised of cells of equilateral size and each cell has a passage between inner and outer wall created using this method of construction. The inner wall uses the passages to secure accompanying structures and systems to a wall that use this structural system. The outer wall uses the passages to secure retaining assembly (34) to the structure. Retaining assembly (34) holds a strata of soil to the wall and creates plateaus along face of outer wall. The plateaus created by securing retaining assembly (34) to main assembly's (32) or (33) give vegetation a place to be planted and secured to a wall that incorporate the construction method of this invention. The passages between the inner and outer walls also nurture the vegetation attached to a structure built using this invention's method of construction by allowing direct access to the roots. By allowing direct access to the roots of the vegetation planted on a structure utilizing the construction method of this invention each plant can receive the optimum amount of irrigation, drainage, and fertilizer.

Described are polyesters containing (a) a dicarboxylic acid component having from 70 to 100 mole % of terephthalic acid residues, and up to 30 mole % of aromatic dicarboxylic acid residues or aliphatic dicarboxylic acid residues; and (b) a glycol component having from 40 to 65 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and from 35 to 60 mole % of 1,4-cyclohexanedimethanol residues; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %. The polyesters may be manufactured into articles such as fibers, films, containers, bottles or sheets.

An inflatable, noise attenuating panel or barrier, comprised of an inflatable air chamber coated with (wrapped in or attached thereto) an acoustic barrier material, with which to construct a variety of structures that benefit from a degree of soundproofing.

A noise-absorbing device includes a substantially flat base and embossed and/or hollow elements each including at least one recess. This base reveals with the embossed and/or hollow elements, a configuration exhibiting a fractality zone of between 1 cm and 50 cm, of fractal dimension greater than 2.5 enabling the localization of the waves over the sound frequency range, in the vicinity of the elements.

Described is a system and method for directly accessing functionality provided by an application, such as via the Web or an operating system Shell. The functionality of an application is separated into unique tasks. Each task has an associated entry point into the application. The associated entry point allows a computer user to invoke the specified task directly rather than to invoke the application and then navigate within the application to locate the specified task. Each task may be exposed to an operating system, such as by having an icon associated with the task appear in an activity center on the desktop. The present invention may operate within a desktop environment, a web-based environment, a browser environment, and others.

A non-wool sound screen with engaged cavities and sound absorptive surfaces is composed of two aluminium fibres sheet layers as surficial layers, two empty cavity layers, two microhole plat layers, a toothed cavity, folded partion, and fixing frame. Its advantage is high effect to decrease noise.

A footing for use to support stanchions of sound-barrier walls is a one-piece monolithic element that includes a base having a plurality of prestressing cables therein. A stanchion is accommodated in a bore defined in either a sleeve included with the base or directly in the base. If a sleeve is included, the sleeve includes a plurality of prestressing strands or rebars. One form of sound-barrier wall includes adjacent panels on opposite sides of a stanchion whereby a panel must be lifted in order to tip the stanchion over so wind forces are safely accommodated. Another form of the footing includes projections that extend into the bore. Various forms of sound-barrier wall configurations can be accommodated by the footing.

The invention relates to a whole image sound barrier for an urban quick lane and a tunnel portal. The sound barrier is characterized by consisting of gate-type arc steel arch racks arranged in the upper space of a pavement, and a sound barrier main body framework consisting of rigid tie rods for connecting the adjacent arch racks and cross supporting rods, wherein purlines are arranged on the main body framework; and meanwhile, the purlines arranged on the main body framework are used as supports, anti-collision wall contact faces are formed symmetrically on the left and right sides along the central axis of the sound barrier till the pavement, and a sound absorber, a ventilated exhaust part, a sound absorber, a lighting part, a sound absorber and a lighting part are arranged at intervals, so that a full-closed for semi-closed whole image sound barrier structure capable of totally isolating direct sound is formed for a road. The whole image sound barrier for the urban main road can effectively reduce the traffic noise of the urban main road, effectively reduce the reverberation in a sound barrier area and ensure the safety and the comfort degree of a road user, and is a sound barrier suitable for a building dense area nearby the urban main road.

A crashworthy traffic noise barrier system for use alongside a path of traffic, the crashworthy traffic noise barrier system comprises a crashworthy longitudinal barrier extending substantially parallel to the path of traffic and a crashworthy traffic noise barrier wall supported by the longitudinal barrier. The crashworthy traffic noise barrier wall includes a plurality of upstanding posts attached to the traffic noise barrier wall, at least one panel supported between each adjacent pair of posts in the plurality of upstanding posts, and at least one longitudinal beams spaced above a top surface of the longitudinal barrier and extending across the plurality of upstanding posts for redirecting a portion of an errant vehicle away from the at least one panel. The longitudinal beams redirect energy of the errant vehicle away from the panels such that the panels and any fragments of the panels, remain attached to the traffic noise barrier wall. The panels may be transparent and may be reinforced with plastic bands, plastic threads, or a plastic net.

The invention relates to a noise-protection wall-segment, for example for roads, motorways or railways and such like, said noise-protection wall-segment including transparent sheets, preferably a transparent plastic sheets, and means fixing the sheets. The transparent sheet is shaped around a perpendicular to the installation surface of the assembled noise-protection wall, the term "shaping' being understood to mean vaulting and/or folding. Moreover, in the case of plastic sheets, preferably made of acrylic glass, threads of synthetic material can be embedded in the sheet which counteract splintering in the event of fracture and constitute a recognized bird impact protection device.

An apparatus is disclosed for an improved acoustic panel comprising a sound absorbing member defined by a first and second face surface and a peripheral edge for absorbing sound from a sound source. A sound blocking member is defined by a first and second face surface and a peripheral edge for blocking the transmission of sound through the sound reducing panel. A first fire retardant spacing material is interposed between and affixed to the second face surface of the sound absorbing material and the first face surface of the sound blocking material. A second fire retardant spacing material having a first and a second face surface and a peripheral edge with the first face surface of the second spacing material is affixed to the second face surface of the sound blocking material. A fire retardant coating is affixed to the second face surface of the second spacing material.

The purpose of the invention is to provide a sound insulation panel which can exhibit superior sound insulating performance in a wide frequency band and whose sound insulating material is easily recycled. The sound insulation panel 2 constituted by putting the sound absorbing material in a case 2a which has a rectangular frame part and a back plate 2c on one side of the frame part and also has an opening side on the other side covered with a detachable front plate 2d having a plurality of sound wave passages where sound waves pass is characterized in that the sound absorbing material is formed by alternately stacking a longitudinally corrugated aluminum thin plate 2e which has a plurality of corrugations formed in one direction of the case 2a and also has many fine through holes and a laterally corrugated aluminum thin plate 2f which has a plurality corrugations formed in the other direction orthogonal to the corrugation processing direction of the longitudinally corrugated aluminum thin plate 2e and also has many fine through holes.