Class / Patent application number | Description | Number of patent applications / Date published |
052851000 | Ribbed | 7 |
20130192164 | STEEL BAR WITH PROJECTIONS FORMING CONCRETE FRAMEWORKS - A steel bar with ribs to form concrete armours, which allows the concrete to be maintained on the elastic zone of its strength with a stress less than 50% of the damage stress, where such bar has a nominal diameter Dn; a distance between consecutive rib centers “L”; a rib height “h” and a rib area “A”, where such area “A” is greater than 0.12×P×L and less than 0.25×P×L. The height “h” is greater than 0.12×L and less than 0.25×L. | 08-01-2013 |
20150121801 | REBAR USED IN CONCRETE - A non-circular rebar used in concrete includes a square rebar, a rectangular rebar, an elliptical rebar, a trapezium rebar, a triangular rebar, and a rebar with round edges and corners. The square, rectangular, elliptical, trapezium, and triangular rebars and the rebar with round edges and corners substitute the conventional circular rebar, so that the rebars can be tied easily to save the space occupied. Since the distance of the resultant force of the tensile stresses of the rebar from the boundary of the concrete becomes smaller or the concrete protecting layer becomes thicker, the change of the shape increases the bonding between the rebar and concrete, and the safety of construction is improved. The non-circular rebar includes a smooth rebar and a ribbed rebar with a non-circular main cross-section. | 05-07-2015 |
052852000 | Longitudinal | 3 |
20090188208 | MECHANICAL HEADER - A mechanical header is provided for spanning a corridor in a building and for hanging mechanical equipment therefrom. The mechanical header includes a first angle member comprising a first horizontal portion and a first vertical portion, where the first horizontal portion extends away from the first vertical portion in a first direction. The mechanical header further includes a second angle member comprising a second horizontal portion and a second vertical portion, where the second horizontal portion extends away from the second vertical portion in a direction opposite the first direction. A spanning beam is coupled to the first vertical member and to the second vertical member. The first horizontal portion is configured to rest on top of a first wall structure, and the second horizontal portion is configured to rest on top of a second wall structure, such that spanning beam spans the corridor and hangs just at or below the level of the top of the first and second wall structures. | 07-30-2009 |
20100011705 | Column segment - A column segment comprising a body having at least one external channel, an upper protrusion extending from a top side of the body, and a lower protrusion extending from a bottom side of the body, wherein the at least one external channel further comprises an outer angled wall arranged to receive a securing means and direct said securing means through the at least one external channel, wherein the upper protrusion includes a domed portion and a plurality of locating slots, wherein the lower protrusion includes a domed recess and a plurality of projections, and wherein a first column segment is stackable with a second column segment by the domed portion and the locating slots of the first column segment matingly engaging with the domed recess and the projections of the second column segment. | 01-21-2010 |
20160002924 | PREFABRICATED ROOF PLATE ELEMENT AND METHOD FOR ITS PRODUCTION - This inventions is a prefabricated roof plate element ( | 01-07-2016 |
052853000 | Spiral | 2 |
20080302063 | REINFORCING ROD - A reinforcing rod made from fiber-reinforced plastic is provided on its peripheral surface with profiling projecting outwardly in the radial direction in the form of ribs extending at least across one part of the periphery. The reinforcing rod has ribs with different geometric and/or material properties. | 12-11-2008 |
20140059975 | Reinforcement for Reinforced Concrete and Methods for Manufacturing Thereof - Disclosed a reinforcement structure for reinforced concrete and methods for manufacturing thereof. In one aspect, the reinforcement structure includes a rod comprising a spiral strip having a pitch between 1.0 and 10.0 times a width of the strip and a ratio of thickness of the strip to the width of the strip in a range of 1:4 to 1:10. The surface of the spiral strip may be entirely or partially corrugated with ribs of arbitrary shape and having height in a range of 0.05% to 0.30% of the thickness of the strip. In another aspect, method for manufacturing a reinforcement structure comprises flattening a wire rod into a flat strip, corrugating it with ribs, and twisting the ribbed strip into a spiral of the specified pitch. | 03-06-2014 |