Abstract: A foundation for a windmill includes an annular pedestal, which is divided into several ring sections and is composed of prefabricated concrete elements, the pedestal including a platform for a windmill tower and several support elements extending radially outward from the pedestal, wherein the pedestal is supported by strut ribs on the support elements, wherein the pedestal, at its end forming the platform, includes a circumferential projection extending radially outward from the pedestal and including at least one channel for receiving a tensioning cable, the channel being provided in the projection and extending in the circumferential direction.

Abstract: A method of assembling a corrugated structure formed of corrugated metal plates. The corrugated structure may include corrugations extending transversely of the longitudinal length of said corrugated structure. At least some of said corrugated metal plates may include a longitudinal flange extending from each longitudinal edge and a transverse flange extending from each transverse edge. At least some of the flanges may include alignment features. The method includes: bringing adjacent plates into abutting relationship such that alignment features on adjacent plates matingly engage; installing fasteners through aligned holes to secure abutting plates; and repeating said bringing and said installing as necessary until said corrugated structure is assembled.

Abstract: A method includes providing a diffuser that has a frame with a base portion and an outer perimeter portion that protrudes outwards from the base portion. The outer perimeter portion includes a metal flange. A portion of the metal flange is attached to a ceiling stud of a ceiling. The method includes forming an opening in a gypsum board to accommodate the diffuser, and assembling the gypsum board with the ceiling stud so that a bottom surface of the frame of the diffuser is flush with the gypsum board.

Abstract: A concrete dowel slip tube assembly is provided for use in maintaining a planner consistency of a cured concrete slab formed on a support surface. The assembly comprises a plurality of elongate slip tubes, each having a length dimension and a tubular hollow interior compartment. Dowels are slidingly engageable to the hollow interior compartment to allow for translation along the interior compartment. A support frame defines a plurality of integral slip tube retaining members, disposed at evenly spaced locations along the support frame, the retaining members being configured to receive and engage associated slip tubes to the support frame in a common defined orientation. The support frame and the retaining members are formed as a unitary construction.

Abstract: A sill assembly that can include a sill and one or more threshold inserts. The threshold inserts can cover cavities within the sill. The sill assembly can optionally include a subsill, which can be a separate from or part of the sill. The subsill can include subsill cavities aligned over the sill cavities to form vertically-stacked pressure chambers. These vertically-stacked pressure chambers can include vertically-stacked pressure chambers positioned within the interior of the building, and vertically-stacked pressure chambers positioned within the exterior of the building. The sill assembly is so structured that different door types, such as swing doors, pivot doors, folding doors and/or sliding doors can be accommodated using the same sill and subsill by simply changing the threshold inserts. The sill assembly can have a minimal rise above the floor surface to meet regulatory requirements such as the Americans with Disabilities Act (ADA).

Abstract: An apparatus and system utilized in a storm shelter to notify rescue personnel that a person is in the storm shelter and needs assistance to get out. The apparatus comprises a tubular member, a cap at the upper end of the tubular member, a mechanism at the upper end of the tubing to signal rescue personnel and a mechanism to move the tubular member upward. The signaling mechanism is a light source with apertures in the tubing to allow light to emanate outward, reflective material, florescent paint and/or an audible source. The moving mechanism comprises a threaded rod vertically supported by a base with a threaded nut that rotates on the rod to raise the tubular member or it comprises a lifting mechanism that raises the tubular member. The system has an opening in the upper wall of the shelter and a removable plug apparatus that plugs the opening.

Abstract: A pass through grid connector clip for a suspended ceiling. The grid connector clip is made of two identical halves connected back-to-back by a fastener passing through a first aperture of both identical halves or other joining method. The identical halves each have a web with a first side and an opposite second side defining a height; a third side and an opposite fourth side defining a length; a louver element closer to a fourth side than the third side; a half sleeve located between the clip and the louver element and extending from the first side to the second side the in a substantially semi-circular shape; the first aperture located between the half sleeve and the clip or the half sleeve and the louver element. The halves include a clip connected to the third side and two flanges projecting in substantially the same direction from opposite sides of the web. As a result, when the halves are joined back-to-back they form a pass through sleeve.

Abstract: Disclosed is a telescopic utility pole where the individual segments are threaded on the outer and inner surfaces, the adjacent segments are threadedly engaged and extension/retraction of the pole segments is performed by twisting along threaded path. The advantage of using the threaded telescopic utility pole is that it can be deployed and erected quickly as compared to traditional utility poles.

Abstract: A connecting system for boards, and a connecting device and a support element for boards are disclosed. The connecting system includes the support element configured to support at least one board and the connecting device configured to releasably fasten the at least one board to the support element. The support element includes at least one lateral surface with at least one locking member arranged on the lateral surface. The connecting device includes at least one arm with a locking member configured for engagement with the locking member of the support element. At least one of the locking member of the support element and the locking member of the connecting device includes a plurality of protrusions forming a plurality of locking positions of the connecting device relative the support element.

Abstract: A universal clamp apparatus for use to secure a solar panel frame to a rail coupled to a building roof is provided. The clamp apparatus includes an upper clamp member slidably mounted to a lower clamp member, a bolt disposed through the upper clamp member, and a grounding nut coupled to the lower clamp member and engaged with the bolt. The grounding nut has a base plate and a tubular portion extending through the lower clamp member to engage the bolt. The base plate of the grounding nut has a first pair of opposing edges having pointed pins configured to penetrate the frame of the solar panel to facilitate grounding of the solar panel. The grounding nut rotatably adjusts relative to the bolt to vary the separation distance between the lower clamp member and upper clamp member to permit the solar panel frames with different thicknesses to be secured therein.

Abstract: According to the invention, the control system consists of one or more global controllers configured to receive state data from the tower structures and tendons, via sensors and control an operating state of the wind generators correspondingly in a calculation method for avoiding load peaks and/or avoiding resonances. In a preferred embodiment, a local controller is configured to also process status data of the sensors from a near field of a building around the respective local controller.

Abstract: Various implementations described herein are directed to a modular ledger of an integrated construction system. In one implementation, the modular ledger includes a rail, having a first end and a second end. Each end of the rail is configured to receive a coupling component. The rail has a plurality of holes configured to couple to bracing components of the integrated construction system.

Abstract: A vent for use in a membrane covering a roof comprises a tubular element having an inner volume, a first end and a second end, a piercing structure located at the first end of the tubular element, a first opening located at a bottom of the tubular element that provides access to the inner volume, a second opening located at the second end of the tubular element that provides access to the inner volume, and a clip located at a top of the tubular element.

Abstract: A subarchitectural office system including a first subarchitectural wall, a second subarchitectural wall, and a single arch extending between the first and second subarchitectural walls. The single arch including a first vertical post, a second vertical post, and a first overhead beam. The subarchitectural office system also includes a double arch extending between the first and second subarchitectural walls. The double arch includes a third vertical post, a fourth vertical post, a fifth vertical post, a second overhead beam, and a third overhead beam.

Abstract: A steel cap for structurally connecting together a new foundation and an existing tower is disclosed. The new foundation includes at least one foundation element positioned in the ground. The existing tower includes an existing foundation and a tower structure extending from and supported by the existing foundation. The steel cap comprises (a) a first element for connecting the cap to the new foundation element or foundation elements and (b) a second element for connecting the cap to the existing tower and thereby, in use, connecting together the new foundation and the existing tower.

Abstract: Various roof vent adaptors are disclosed. The roof vent adaptors can be used to seal penetrations on buildings, such as vent penetrations on metal or non-metal roofs. In various embodiments, the roof vent adaptor includes a sealing member, an outer securing unit and an inner securing unit. The roof vent adaptor can be secured to the roof to provide a generally liquid-tight seal around the roof vent, thereby inhibiting or preventing water intrusion into the building.

Abstract: The present disclosure relates generally to an insulation-retaining sheet, e.g., for blown-in insulation, that includes an integral vapor-retarding membrane. In one aspect, the disclosure provides an insulation-retaining sheet including a sheet of mesh having an air permeability of at least 200 cfm per square foot; and one or more strips of vapor-retarding membrane, the one or more strips of vapor-retarding membrane being laminated to the sheet of mesh, the first side edge each of the strips of vapor-retarding membrane extending to the first side edge of the sheet of mesh, the second side edge each of the strips of vapor-retarding membrane extending to the second side edge of the sheet of mesh, wherein the insulation-retaining sheet has a plurality of open zones extending laterally from the first side edge of the sheet of mesh to the second side edge of the sheet of mesh in which no vapor-retarding membrane is laminated to the mesh.

Abstract: A tower section 12 of a wind turbine is provided, the tower section 12 including an upper segment 100 that includes a lower flange 110; a lower segment 200 that includes an upper flange 210; a plurality of first bolt connections that include first bolts 310 and first nuts 320; a plurality of second bolt connections that include second bolts 410 and second nuts 420; wherein the first bolt connections and the second bolt connections connect the lower flange 110 to the upper flange 210; and wherein the first bolt 310 and the second bolts 410 have different axial positions with respect to the longitudinal axis of the tower section 12.

Abstract: Disclosed are tower erection systems and tower climbing systems and associated methods of operation. A tower erection system, in accordance with various embodiments, includes a ground-installed lifting structure, and a lifting frame configured to latch onto individual tower sections and traveling vertically inside the ground-installed lifting structure, lifted by a winch-and-cable or other lifting mechanism. Using this system, a tower may be assembled from multiple sections from the top down. A tower climbing system, in accordance with various embodiments, includes upper and lower climbers that can latch onto the lateral surface of a tower and a lifting mechanism that can move the climbers vertically relative to each other. The system can be used to carry a crane or other heavy equipment up and down along the tower. A climbing crane may be used, for example, during tower construction, or to reach the top of the tower for maintenance or repair.

Abstract: A system including an electrical spacer bar transfer device (E-SBTD) and an electrical spacer bar receiving device (E-SBRD), wherein the electrical spacer bar transfer device (E-SBTD) is configured to be electrically connected to the electrical spacer bar receiving device (E-SBRD).