Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8153046 | Wall forming system A wall forming system utilizing flowable construction materials, such as concrete, to construct walls. The wall forming system comprises a wall forming assembly and a method of using the wall forming assembly to form a wall having an exterior surface. The wall formi... | 04/10/2012 |
| 8101113 | Molding apparatus for producing dry cast products having textured side surfaces An apparatus for molding dry cast products having a textured side surface is disclosed. The apparatus comprises an open compartment for receiving a dry concrete mixture and a plurality of walls laterally enclosing the compartment. At least one of the walls has a mul... | 01/24/2012 |
| 8071010 | Process for producing concrete in hot weather A process for manufacturing concrete bodies at elevated temperatures including the steps of providing pre-selected amounts of cement, aggregate and water where the temperature of at least the aggregate and more likely the cement and water are heated to a temperature... | 12/06/2011 |
| 8066931 | Method and an apparatus for the manufacture of concrete pipes A method and an apparatus for the manufacture of concrete pipes (2) made of an outer layer and having an inner layer of greater density in surface structure is described. The inner layer is applied by an applicator in a mould (1) having both outer (... | 11/29/2011 |
| 8017058 | Castable refractory powder composition, premixed material prepared therefrom, method for casting premixed material, and hardened refractory body obtained therefrom A premixed material is obtained by tempering a castable refractory powder composition comprising refractory aggregate, fine refractory powder, alumina cement, a dispersing agent and an alumina cement hydration stopper with water. The hydration stopper is acidic in a... | 09/13/2011 |
| 7976763 | Method of making a protective element for a breakwater or wave-retarding construction A protective element for a breakwater or wave-retarding construction comprises a body that has at least two opposing projections. The projections are on either side of a flat base and extend transversely thereto. The periphery of the base is non-circular, so that ro... | 07/12/2011 |
| 7892472 | Method of making water-resistant gypsum-based article A moisture resistant gypsum-based product, e.g., a gypsum board, is made by adding a small amount of a siloxane to the aqueous slurry used to make the gypsum-based product along with a small amount of a dead burned magnesium oxide catalyst to enhance the curing of t... | 02/22/2011 |
| 7887738 | Brick and method for its manufacture Concrete bricks are produced that have a similar appearance to natural or clay brick. Each brick includes internal colors throughout the brick that mimic the flashings in natural or clay brick. ... | 02/15/2011 |
| 7875231 | Method for producing fiber reinforced cement-based structural building materials A composition for synthetic structural building materials, such as lumber, and the method used to fabricate such building materials. The synthetic building materials are molded from a composition that contains cement, sand, curing agents, water, synthetic fibers, a ... | 01/25/2011 |
| 7862763 | Methods of quality control in concrete block production The invention relates to a method of controlling the quality of blocks that are produced front face-up in a mold, and verifying the accuracy of the production of such blocks, to ensure that the blocks are manufactured with consistent quality and minimal block-to-blo... | 01/04/2011 |
| 7824598 | Vertical-cast concrete column forms and panel elements and method of fabrication A system for forming thin-wall pre-cast concrete forms and structures, using vertical casting and slip-form techniques to partition wet concrete into separate thin-wall sections, the system being particularly useful for fabricating pre-cast concrete column forms hav... | 11/02/2010 |
| 7820094 | Lightweight concrete compositions A lightweight ready-mix concrete composition that contains 8-20 volume percent cement, 11-50 volume percent sand, 10-31 volume percent prepuff particles, 9-40 volume percent coarse aggregate, and 10-22 volume percent water, where the sum of components used does not ... | 10/26/2010 |
| 7815841 | Fiber cement composite materials using sized cellulose fibers This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using cellulose fibers that are treated with inorganic and/or organic resins to make the fibers more hydrophobic, as well as other chemical treatments. This in... | 10/19/2010 |
| 7790090 | Method of manufacturing sheets based on hydraulic binder, production line for producing such sheets and apparatus for making an impression The invention relates to a method of manufacturing sheets based on hydraulic binder, particularly sheets of plasterboard with feathered edges. The method comprises the steps of (I) making a mark (301) on a facing (2 or 3) of the preform (5 | 09/07/2010 |
| 7763201 | Device and method for the production of a multi-layer concrete pipe A device and a method for the production of multi-layer concrete pipes, particularly two-layer concrete pipes. The device has a first stand, in which a first pressing head that can be driven is mounted, a turntable, on which several mold mantles standing vertically ... | 07/27/2010 |
| 7736575 | Method of creating chemical induced pre-stressed zones in concrete Embodiments of the present invention comprise a method for creating pre-stressed zones in concrete. In one embodiment, a circular blade is coated with a chemical which retards the setting of the concrete. The circular blade is then rolled through the wet concrete, t... | 06/15/2010 |
| 7736574 | Perlite composition and method of making the same Improved methods for the production of lightweight, rigid, insulative perlite/cement solid articles such as bricks (62) are provided wherein expanded perlite is first treated with a cement binder followed by application of cement with subsequent mixing and fo... | 06/15/2010 |
| 7704434 | Concrete block with beveled core opening edge Methods and equipment for forming beveled edge(s) around the core opening in a concrete block are disclosed. The formation of the beveled edge(s) minimizes feathering along the block edges that are beveled as the block is stripped from a mold. Any feathering that do... | 04/27/2010 |
| 7687005 | Masonry unit manufacturing method A method for forming a masonry unit that includes joining a pallet to a bottom surface of a mold, inserting a filler plug into the side of the mold between a partition plate and a pallet, dispensing mix into the mold, and compressing the mix with a shoe to form a ma... | 03/30/2010 |
| 7678322 | Method of producing manufactured aggregates The invention relates to a method of fabricating manufactured aggregates (10), characterized in that the following steps are performed: supplying a first material (12) comprising particles; supplying ... | 03/16/2010 |
| 7615182 | Concrete block and method of making same A concrete building block containing Portland cement, a filler, water, and a quantity of particularly sized plastic particles, such as spent abrasive particles of a thermoset plastic. The associated method of producing such blocks eliminates the need of curing the b... | 11/10/2009 |
| 7611654 | Process for preparing a cement thread repairing composition “PROCESS FOR OBTAINING CEMENT THREAD REPAIRER, CEMENT THREAD REPAIRER AND MANNER OF APPLICATION OF CEMENT THREAD REPAIRER”, particularly of a process a process for obtaining a colored liquid film used for aesthetic recovery of cement threads between ceramic part... | 11/03/2009 |
| 7481960 | Mobile straw beam fabricator An apparatus for producing a cemented product from agricultural waste. The apparatus is comprised of a wheeled, moveable frame that holds a capturer adapted to capture a portion of the agricultural waste product onto the frame, an aligner, mounted on the frame, that... | 01/27/2009 |
| 7468154 | Flexible hydraulic compositions A composition for making flexible articles includes a hydraulic component of at least 50 weight % fly ash, a water-soluble, film-forming polymer and water. Articles are made from this composition by making a slurry of the components, forming the article and allowing... | 12/23/2008 |
| 7419543 | Metal fiber concrete A mixture of metal fiber concrete based on cement, granular elements and water, comprising metal fibers whose diameter ranges from 1.15 mm to 1.8 mm, wherein the form coefficient thereof is between 35 and 45. The dosing of metal fibers is at least 80 kg/m3 | 09/02/2008 |
| 7413603 | Fiberboard with improved water resistance Articles, including fiberboard, are made from a pumpable, flowable slurry including alpha-calcined calcium sulfate hemihydrate anchored in pores of host particles, alpha-calcined calcium sulfate hemihydrate, a silicone compound, magnesium oxide, and water. The magne... | 08/19/2008 |
| 7407615 | Method for producing concrete or mortar using a vegetal aggregate A method for producing concrete or mortar based on an exclusively vegetal aggregate, a mineral binding agent, and mixing water is described. Instead of the vegetal aggregate being premineralized in a separate step of the operation, 4 to 14 kg of a non-hydratizable, ... | 08/05/2008 |
| 7404917 | Method and system for generating foam for the manufacture of gypsum products A method for generating foam for gypsum product manufacturing includes injecting water through a conduit and injecting a foaming agent through the conduit to form a first solution comprising the water and the foaming agent. The method includes straining the first so... | 07/29/2008 |
| 7402203 | High-wearing-resistant composite material comprising steel-based shot and method for producing said material A composite material is obtained by mixing with water 100 parts in weight of binder, between 250 and 800 parts in weight of steel-based shot having a granulometric distribution comprised between 120 jim and 3000 jim, between 10 and 15 parts in weight of non-densifie... | 07/22/2008 |
| 7396495 | Structural member A method for producing a block having a flat bottom, a flat top which is parallel to the bottom and sidewalls which extend between the bottom and the top is disclosed. At least three cooperating mold parts are assembled on a first plate to produce assembled mold par... | 07/08/2008 |
| 7393424 | Gypsum composition A gypsum composition comprising water, stucco, clay, an amine compound, a polyoxyalkylene, and a comb-branched copolymer is disclosed. The gypsum composition has improved fluidity. A method for preparing the gypsum composition is also disclosed. The method comprises... | 07/01/2008 |
| 7381261 | Expanded perlite annealing process This invention is directed to a method of reducing the water demand of expanded perlite that includes obtaining a vibrating screen supported at an angle and placing expanded perlite on the vibrating screen. The expanded perlite is moved over the screen past toward a... | 06/03/2008 |
| 7374705 | Method for maximizing the sharing of tensile load for cement-sheathed multi-wall pipe A method for installing a fiberglass or stainless steel liner into a steel casing which results in a reduction of strain on the casing. Conventional means are used to place the liner into the casing and to fill the annular space with cement. Thereafter, maximum desi... | 05/20/2008 |
| 7374611 | Sprayable machinable media In conjunction with water, a mixture can be used to prepare a sprayable slurry that hydrates to form a machinable plaster composition. The mixture includes from about 80% to about 98% by weight calcium sulfate hemihydrate, from about 1% to about 5% by weight adhesiv... | 05/20/2008 |
| 7371277 | Method for making a road base material using treated oil and gas waste material The present invention provides a novel method to produce grade road base material using recycled oilfield waste, called “oil and gas waste,” more specifically, drilling waste and aggregate and a novel road base material. Hydration and mixing of the waste materia... | 05/13/2008 |
| 7341627 | Fiber reinforced concrete products and method of preparation Concrete products and mixes with reinforcing carbon graphite fibers, the carbon fibers being provided in the form of resin coated warped beam fabric, and a method for producing reinforced concrete products, where semi-cured carbon fibers are mixed with concrete and ... | 03/11/2008 |
| 7341685 | Block forming method A block forming apparatus is provided. The block forming apparatus includes first and second jackets detachably secured to a base pallet. The first and second jackets may be removed from the base pallet during the curing period of a block for use with a second base ... | 03/11/2008 |
| 7335254 | Alpha-type calcium sulfate hemihydrate compositions and methods of making same Disclosed is an improved alpha-type calcium sulfate hemihydrate. Methods of producing an improved powdered calcium sulfate hemihydrate (CaSO4.½H2O) [alpha-type] compound are disclosed, at least one method including forming calcium sulfate dihy... | 02/26/2008 |
| 7320774 | Method for providing multiple tile shapes or appearances of the same According to various embodiments, methods, apparatuses, and products are provided that use an S-shaped die mold and a scoring/knifing process to produce two types of dies (S-shaped tiles and C-shaped tiles) from the S-shaped tile mold. The scoring/knifing process fo... | 01/22/2008 |
| 7300610 | Method for forming cavities of complex configuration within concrete A form for creating cavities within large concrete structures, wherein the formed is created by interconnecting a plurality of section members, the section members having flexible mold skeleton members retaining polymer-aggregate panel members, and wherein the form ... | 11/27/2007 |
