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2869results about "Building roofs" patented technology

Slope compensator for pedestal for elevated floors

InactiveUS20080222973A1Reduce prevent relative movementImprove stabilityBuilding roofsCeilingsConvex sideEngineering
A slope adjustable head for an adjustable pedestal (10) for supporting beams, panel members, typically pavers, in accurate edge aligned relation, in a level plane is disclosed. The pedestal (10) includes a base block (12) and a series of inter-engaging threaded annular elements (20, 30) which can be rotated relative to each other to adjust the height of the top of the pedestal in a screw jack fashion. A slope compensator is located at the top of the pedestal and comprises a slope compensation plate (100) and a head member (50). The head member (50) defines a concave surface having a defined radius of curvature. The slope compensation plate (100) defines a corresponding convex surface having the same radius of curvature and sits on top of the head member. The pedestal (10) is calibrated to allow adjustment for typically zero to five percent in one percent increments. The top member defines a central aperture (56) and a series of holes (72) arranged in a spiral around the central aperture. The adjustment member defines a depending central cylindrical portion (110) which locates in the central aperture (56) and two diametrically opposed depending pegs (132, 134) spaced either side of the central cylindrical portion which locate in the holes of the top member. Rotation of the slope compensation plate (100) about its centre of curvature causes the angle of the adjustment plate relative to the vertical axis to change thus allowing for compensation for the slope of the surface on which the pedestal is standing.

Skylight membrane with diverter

The present invention 10 discloses an elastomeric skylight membrane molded as a single piece comprising a planar element 18 for sealably engaging roof sheathing 26 and a centrally positioned collar element 20 for sealably engaging the rough opening framing members 34. The skylight collar membrane 20 is inserted over the framed rough opening for a skylight 16 having the elastomeric collar element tightly engaging the framing members 34 and of substantially the same height as the rough opening frame members. The planar element 18 engages the roof sheathing 26 and is fixedly attached thereto by any means well known within the art. Positioned across the up slope side 36 of the collar 20 is an angularly protruding edge 32 for preventing water from wicking between the skylight frame 34 and the skylight membrane 10. To prevent lateral flow from the up slope edge 36 of the skylight 16 there are two spaced apart ridges 22 transversely positioned to the turnback collar sides extending above and below the horizontal edge 30 of the up slope side 36. The diverter ridges 22 spaced away form the turnback side 32 obstruct lateral water flow returning it to a downhill flow. The planar element 18 further has a bead 38 on three sides near its periphery that will redirect any water that has accumulated between the skylight membrane and shingles to a downward flow.

Trilithic and/or twin shell dome type structures and method of making same

Trilithic Shell, Twin Shell, Multiple Shell, Curvilinear Shell as well as Free-formed Structures described herein each employ an inflatable membrane having a peripheral edge secured to an outer foundation base. An ultra-light membrane (air-form) having a network of internal cross connecting restraints is additionally secured to the inner foundation base to permit a novel and unique curvilinear surface. Pressurization then creates the backdrop upon which various urethane layers are applied which when laced with rigidifying tubes become the defining backdrop beneath which numerous cross connecting braces which when snapped into position effectively lock an inner framework to an outer framework thereby producing a self supporting truss like structure both compatible with either current dome construction and/or conventional construction practices. Shotcrete being then sprayed from the interior over said urethane coated backdrop forms highs at framework intersections and natural lows in between followed by the insertion of inflated cell tubes which span the created network of horizontal and vertical cavities are next over sprayed with urethane foam necessary to form the next natural backdrop over which two or more shotcrete/steel reinforced separate yet cross connected planes may be achieved. Such multiple yet independent rigid layers now having thousands of inner-connecting cross braces through which interior voids become natural chase-ways effectively displace 50% or more of what might otherwise be solid concrete as would be the case with all prior art thin shell structures and/or conventional stem wall construction practices. Such Free Formed curve-linear structures effectively reduce material and labor costs by as much as 50%, eliminate snap-through or oil-can buckling tendencies, enhance overall structural capacity, eliminate all height to diameter restraints, permit larger structures, facilitate floor suspension and attachment, and allow mechanical, electrical and HVAC distribution through interior chase-ways which cannot be achieved with prior art concrete thin shell single thickness structures and/or conventional stem wall, construction practices to date.
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