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...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!

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Class 52/223.1 - WITH COMPONENT HAVING DISCRETE PRESTRESSING MEANS


Subclass of Class 52 - Static structures (e.g., buildings)
Definition: Structure including a compressive preloading of a static
No. of patents: 97
Last issue date: 08/30/2011


1      
NumberTitleIssue Date
8006446CO2-sequestering formed building materials
CO2-sequestering formed building materials are provided. The building materials of the invention include a composition comprising a carbonate/bicarbonate component. Additional aspects of the invention include methods of making and using the CO2...
08/30/2011
7770342Hollow core floor and deck element
A stress-optimized structural support which may be utilized as a beam or assembled with similar supports to form a building floor or roof panel or a bridge deck utilizes an open core element, made preferably of suitably treated fluted paper, upper and lower thin ski...
08/10/2010
7707800Beam construction and method for manufacturing the same
A beam construction, particularly a so-called doctor beam, for use mainly in pulp and paper mills to carry blade holders (7) intended to hold doctor blades. The beam (1) is a composite-construction hollow beam, which also includes at least one composit...
05/04/2010
7644548Lightweight concrete compositions
A lightweight concrete composition containing from 10 to 90 volume percent of a cement composition, from 10 to 90 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio o...
01/12/2010
7516582Automatic take-up device with internal spring
The present invention consists of a connection, having an anchored, elongated tension member, a fastening member attached to the elongated tension member, a resisting member that receives the elongated tension member and an expansion device that receives the elongat...
04/14/2009
7370452Mat assembly for heavy equipment transit and support
A mat assembly particularly suited for heavy equipment transit and support, such as roadway construction and the like. The mat assembly is made up of a number of structural members preferably having a “double I-beam” cross-sectional shape. Each I-beam has spaced...
05/13/2008
7357460Connecting system for tensile elements
An improved connecting system for tensile elements, including a longitudinal tensile element having an end portion and a cross-section thereof, a deformable connecting element; a bracing element, and a tensile axis of applied tensile load along said longitudinal ten...
04/15/2008
7299516Construction of a corrosion-resistant tension member in the area of a rerouting point arranged on a support, particularly an inclined cable on the pylon of a cable stayed bridge
A corrosion-resistant tension member, particularly an inclined cable of a cable stayed bridge, is comprised of a bundle of individual elements, for example, steel wire strands, which in the open area is encapsulated by sheathing, and which in the area of a rerouting...
11/27/2007
7216467Column to structure attachment device
A column to structure attachment device and method is disclosed for securing a support column between a base structure and a beam structural member. The device includes a structural column having a first end and a second end with a void parallel to a longitudinal ax...
05/15/2007
7216842Pocket former
A pocket former includes an outer barrel having a first rim, a second rim and a frustoconical body portion extending from the first rim to the second rim. A center barrel is connected to the outer barrel and has a proximal lip adjacent the first rim of the outer bar...
05/15/2007
7200886Construction of a corrosion-resistant tension member in the area where it enters a structure, particularly an inclined cable on the pylon of a cable stayed bridge
A corrosion-resistant tension member, particularly an inclined cable of a cable stayed bridge, is comprised of a bundle of individual elements, for example, steel wire strands, which in its open area is encapsulated by sheathing, and which within the structure exten...
04/10/2007
7114295Tower made of prestressed concrete prefabricated assembly units
The invention concerns a method of erecting a pylon of prestressed concrete finished parts and an apparatus for advantageously carrying out the method. In order to at least reduce the problems present in the state of the art when erecting a pylon, there is provided ...
10/03/2006
7107730PSSC complex girder
A PSSC complex girder in which a section shape steel structure is formed by joining one or more section shape steel. The PSSC complex girder includes a tension means for tensioning the section shape steel structure with a tensional member so that the structure has a...
09/19/2006
7102074Photovoltaic attachment system
A photovoltaic attachment system for mounting photovoltaic panels on top of a building's roof is disclosed. The attachment system does not require drilling of holes into the roof and does not affect the integrity of the roof. The photovoltaic attachment system compr...
09/05/2006
7064896Method for producing polarizing plate, polarizing plate and image display device using the same
A method of producing a polarizing plate, including the step of laminating a pair of curled protective sheets onto opposite surfaces of a polarizer respectively so that respective curling directions of the pair of curled protective sheets are reverse to each other, ...
06/20/2006
7044170Hydraulic cementitious composition with improved bleeding resistance
A method of making a grout composition which reduces the amount of bleed water from grout used in bonded post-tensioned concrete applications is provided. The method includes forming the grout composition by combining copolymers with other materials into a hydraulic...
05/16/2006
7007815Pallet rack with camber beams
A storage rack has upright columns supporting vertically cambered beams having step box or channel shapes accommodating a generally horizontal deck for carrying pallets and product loads. The beams have upward cambers or convex curvatures that increase the load carr...
03/07/2006
6988340End termination of tension leg
An end termination for a tension leg of non-metallic materials like composite material is disclosed. The tension leg is constructed of a number of strands which constitute the load carrying elements of the tension leg. The strands are twisted (laid) about the longit...
01/24/2006
6973755Column to structure attachment device
A column to structure attachment device and method is disclosed for securing a support column between a base structure and a beam structural member. The device includes a structural column having a first end and a second end with a void parallel to a longitudinal ax...
12/13/2005
6955243Ground anchor device for holding a ladder and other objects in place
A ground anchor device used for holding a ladder in place on a ground surface and next to a wall of a building. Also, the ground anchor device can be used for holding other objects in place and used as a wench or come-along. The anchor device includes a ground spike...
10/18/2005
6955013End cap locking mechanism for connecting pre-cast concrete structures
An end cap locking mechanism used to protect attachment means connecting pre-cast concrete structural members from exposure to adverse environmental conditions having an end cap and a connection sleeve, wherein the end cap is inserted into an end of the connection s...
10/18/2005
6944550Method for tensioning multiple-strand cables
A method whereby the strands (13,13A) are fixed one after another between two cable anchors (A,B) integral with the structure. The method consists: in pulling on one of the ends of a strand (13A) from one (A) of the cable anchors, while the other end i...
09/13/2005
6915615Prestressed composite truss girder and construction method of the same
The present invention relates to prestressed composite truss girder and construction method of the same. The prestressed composite truss girder of the present invention comprises a concrete bottom plate having structure of composite truss; a lower-chord member being...
07/12/2005
6892502Space frame support structure employing weld-free, single-cast structural connectors for highway signs
A space frame support structure for highway signs comprises upper and lower chord members; a plurality of weld-free, single-cast connectors attached to and spaced along the respective length of the chord members; a plurality of diagonal members disposed between the ...
05/17/2005
6843027Cable system and method for wind-resistant buildings
A system and method for securing the wall framing and roof of a building structure against wind. A cable tensioner, located between two uprights of the wall framing and below the top plate, is attached to an anchor secured in the foundation. A cable extends over the...
01/18/2005
6832454Beam filled with material, deck system and method
A construction beam includes a tubular housing preferably formed of a fiber-reinforced polymer filled with a solid filler material such as concrete. The Poisson's ratio of the tubular housing is less than the filler material to provide confinement of the filler mate...
12/21/2004
6722085Mobile home tie-down apparatus
A tie-down apparatus for building structures, including mobile homes. The structure is constructed with a plurality of structural members including channel members disposed therein. In one embodiment, channel members are formed in both the roof structural members an...
04/20/2004
6715249Structural insulated sheathing and related sheathing methods
A structurally enhanced, insulating sheathing (10) and method of sheathing a frame of the type used in constructing a building are disclosed. In one embodiment, the sheathing includes an insulating layer of material (14) attached to a structural layer ...
04/06/2004
6684585Method and apparatus for providing a visual indication of the tension applied to a tendon of a post-tension system
An anchorage for a post-tension system including an anchor body having an interior cavity and a generally flat end surface, a tendon extending through the interior cavity of the anchor body, a plurality of wedges in interference-fit relationship between a...
02/03/2004
6634147Process for the installation and tensioning of a brace having a false bearing, in particular a stay cable for a cable-stayed bridge and anchoring device with which to carry out the process
In order to install or tension a brace (1) having a false bearing, for example a stay cable for a cable-stayed bridge, an external tensioning member or similar comprising a bundle of plastic-sheathed individual elements (2) made of steel, for example, wir...
10/21/2003
6564519Shear wall construction
A shear wall construction and method for assembling the same is disclosed. A plywood sheet includes close laterally-spaced pairs of vertical studs or posts proximate each lateral end. A channel-defining member is fitted and fixed between the spaced studs....
05/20/2003
6557316Building system comprising individual building elements
A building system comprising a plurality of individual building elements and connecting mechanisms, wherein each of the building elements has an upper and a lower surface which are substantially parallel to each other and at least one opening extending fr...
05/06/2003
6543192Lintel support brace and method of using same
A lintel support brace having a top portion, an opposing bottom portion adjustably coupled to the top portion, and a support arm coupled to the bottom portion, wherein the top portion and the bottom portion are configured to be attached to an adjoining he...
04/08/2003
6470636Detensioning apparatus for releasing a chuck on a prestressed strand
An apparatus for detensioning prestressed strand, the hollow apparatus being capable of movement along a pre-tensioned strand, thus enabling the protrusion of the apparatus's separation device into the rear portion of the strand chuck barrel's inner conic...
10/29/2002
6425212Stress-tension hazard concrete slab indicating device and system
A prestressed or post-tensioned concrete slab indicating device for indicating a presence of a prestressed or post-tensioned slab of concrete includes a plate member having a front surface and a back surface, a visible indication on the front surface, the...
07/30/2002
6389767Shear wall construction
A shear wall construction and method for assembling the same is disclosed. A plywood sheet includes close laterally-spaced pairs of vertical studs or posts proximate each lateral end. A channel-defining member is fitted and fixed between the spaced studs....
05/21/2002
6381912Apparatus and method for sealing an intermediate anchor of a post-tension anchor system
An intermediate anchorage system including an anchor member with an interior passageway, a tendon extending through the interior passageway of the anchor member, an elastomeric seal having one end affixed to the anchor member and extending outwardly there...
05/07/2002
6360501Guide unit for a tension member at a structural component
A guide or deflecting unit for a tension member at a structural component of a structure extending outside of the cross-section of the structure. The tension member extends with a change of direction over a deflection point formed at the structural compon...
03/26/2002
6354056Apparatus and method for providing a reinforced roof truss
A reinforced truss includes a pre-existing top chord and a pre-existing bottom chord, a reinforcing top chord, first and second reinforcing chord heel plates, each of the reinforcing chord heel plates having a plate, a reinforcing truss bracket attached t...
03/12/2002
6345473Apparatus for use in the construction of precast, moment-resisting frame buildings
A method and apparatus for positioning mild steel reinforcing bars within a precast, moment resisting frame of a building. The apparatus includes a hand-receiving access component that can be installed within the concrete beams that make up the building f...
02/12/2002
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