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53100 results about "Civil engineering" patented technology

Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including public works such as roads, bridges, canals, dams, airports, sewerage systems, pipelines, structural components of buildings, and railways.

System for modular building construction

InactiveUS20080134589A1Facilitating selective interconnectionConstruction materialLighting and heating apparatusEnvironmental systemsModular unit
Construction systems for erecting building structures comprise a plurality of prefabricated interconnectable modular building units, each unit not meeting at least one of the ISO certification criteria for transport of cargo but each unit comprising a frame shaped as a rectangular parallelopiped and comprised of framing members and a plurality of nodes, each node situated at a corner of said frame for selective interconnection with other units, the nodes and the exterior dimensions of the frame conforming to ISO shipping standards such that each unit is transportable using the ISO intermodal transportation system, and such that when the units are aggregated horizontally and vertically and adjacent units are interconnected, a building structure comprising at least one habitable space is formed. The modular units are assembled in a factory remote from the job site, and are there constructed to a semi-finished state, including installation of one or more of interior fit-out systems and finishes, exterior envelope systems, plumbing systems, electrical systems, environmental systems, and fire protection systems, following which the semi-finished modular units are transported from the factory to the job site, where they are craned into place and secured to form the structure being erected, a plurality of adjacent pairs of semi-finished modular units also being “stitched” together, and the semi-finished modular units are thereafter constructed to a finished state.

Self-heat-preservation building block and self-heat-preservation wall body consisting of self-heat-preservation building blocks

ActiveCN103243857AMeet heat preservation and energy saving requirementsPlay a role in heat preservationConstruction materialWallsWhole bodySlurry
The invention relates to the field of building materials, and in particular relates to a self-heat-preservation building block and a self-heat-preservation wall body consisting of self-heat-preservation building blocks, which aim to solve the technical problem that conventional building wall body materials cannot have the functions of bearing, heat preservation and fire prevention simultaneously. According to the technical scheme, the self-heat-preservation building block comprises a building block body which is made of foamed cement; transverse through slots are formed in the upper surface of the building block; vertical through holes are formed in the building block; one or several of concrete slurry, cement mortar, plaster and heat preservation plaster is/are filled into the transverse through slots to form core columns; concrete slurry or cement mortar is filled into the vertical through holes to form core columns; and the core columns and the building block body are combined to form a whole body. The self-heat-preservation wall body consists of the self-heat-preservation building blocks. The self-heat-preservation building block and the self-heat-preservation wall body have functions of heat preservation and fire prevention as well as bearing.

Mahjong machine and disposing method of mahjong tiles

ActiveCN106492454AIncrease the lengthIncrease the amount of storageIndoor gamesHandling systemCivil engineering
The invention discloses a mahjong machine and a disposing method of mahjong tiles. Four groups of tile picking and handling systems of the mahjong machine are independently arranged respectively and are not arranged in an interrelated mode, a tile storing groove bends in an arc shape and the angle of bend is larger than 180 degrees, between the tile inlet direction of a tile inlet and the tile outlet direction of a tile outlet in the tile storing groove is an included angle of 45-90 degrees, in the same group of the tile picking and handling system, a tile rising component and a tile sending device are directly adjacent inside and outside and are arranged outside of the arc bending of the tile storing groove, a tile serving driving mechanism of a tile serving pushing head is arranged inside of the arc bending of the tile storing groove, the tile outlet of the tile sending device is provided with a tile pushing device, between the tile pushing direction of the tile pushing device and the tile outlet direction of the tile sending device is an included angle of 80-100 degrees, and between the tile inlet direction of the tile storing groove in the tile serving component and the tile pushing direction of the tile pushing device is an included angle of 0-10 degrees. According to the scheme, the storing number of the mahjong tiles in the tile storing groove is increased, the height of the main machine of the mahjong machine and the manufacturing cost are reduced, and using experience and comfort are better.

Apparatus for mounting photovoltaic power generating systems on buildings

InactiveUS20060053706A1Reduce and eliminate module-distortingReduce and eliminate and module-destructing wind uplift forcePhotovoltaic supportsSolar heating energyStructural engineeringMechanical engineering
Rectangular PV modules are mounted on a building roof by mounting stands that are distributed in rows and columns. Each stand comprises a base plate that rests on the building roof and first and second brackets of different height attached to opposite ends of the base plate. Each bracket comprises dual module-supporting members for supporting two different PV modules, and each PV module has a mounting stud adjacent to each of its four corners. At one end each module is supported by pivotal attachment of two of its mounting studs to module-supporting members of different first brackets. At its other end each module rests on module-supporting members of two different second brackets, whereby the modules assume a predetermined angle of tilt relative to the roof. Two tethers connect the other two mounting studs to the two different second brackets on which the module rests. The tethers allow the modules to pivot up away from the module-supporting members on which they rest to a substantially horizontal position in response to wind uplift forces, thereby enabling the PV modules and their supporting stands to withstand high velocity winds without the base plates being physically attached to the supporting roof structure.

Modified secondary backing fabric, method for the manufacture thereof and carpet containing the same

InactiveUS6060145AIncrease delamination strengthGood dimensional stabilityLayered productsWoven fabricsFiberYarn
A modified secondary backing fabric (20) for carpet (50) comprises a secondary backing scrim fabric (15) and a fiber batt (21) integrated with the secondary backing fabric forming the modified fabric, providing a soft face (51) opposite the face (52) presented by the scrim fabric, uninterrupted by the scrim fabric. A carpet (50) comprises a face yarn (11); a primary backing fabric (12), the face yarn being tufted into the primary backing fabric; a modified secondary backing fabric (20) attached to the primary backing fabric; and an adhesive material (14) binding the face yarn to the primary backing fabric and the primary backing fabric to the secondary backing fabric. The modified secondary backing fabric (20) comprises a secondary backing scrim fabric (15) and a fiber batt (12) integrated as a unitary scrim, providing a soft face (51) forming the underside of the carpet, the soft face forming a barrier uninterrupted by the scrim fabric and blocking exudation of any of the adhesive material from the underside of the carpet. A method for the manufacture of a modified secondary carpet backing (20) comprises selecting a secondary backing scrim fabric (15) and a fiber batt (21); joining the two fabrics to form the modified secondary carpet backing (20), providing a soft face (51) opposite the face (52) presented by the scrim fabric, uninterrupted by the scrim fabric; and subjecting the modified fabric to heat sufficient to remove substantially all loose fibers (45) projecting from the soft surface. The present invention also provides a method for the manufacture of carpet.
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