Did You Know...
...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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| Number | Title | Issue Date |
| 8074421 | Disposable structure of mesh construction for making foundations, plinths and construction elements in general A disposable structure for making foundations, plinths and construction elements in general wherein there is provided an iron reinforcement (12, 13) arranged in at least one containment element (14) for receiving concrete (16), wherein the at le... | 12/13/2011 |
| 7421827 | Cellular stirrups and ties for structural members The present invention refers to stirrups and ties for structural members. Such stirrups and ties are used in all the structural members like columns, beams, slabs, footings, piles, chainages, lintels etc. The invention refers also to a method of reinforcement of str... | 09/09/2008 |
| 7231746 | Sheet metal stud and composite construction panel and method Steel studs for use in construction having a web, main web openings through the web, a right angular flange formed on a free edge of the web, and depressions in the web and depression openings in the depressions. An alternate form of stud has a triangular tube struc... | 06/19/2007 |
| 6295770 | Steel frame building structure A steel frame building structure includes steel posts, steel beams fixed with connect members, and connectors connected to the connect members with bolts and nuts, support frames of wall structures fixed with the beams to construct wall structures, and th... | 10/02/2001 |
| 5487251 | Apparatus and method for reinforcing cast structures A rectangular reinforcing cage is provided for a cast concrete structure having longitudinal registration tubes at each corner of the cage. An outer reinforcing cage surrounds the registration tubes and a coaxial inner reinforcing cage is supported from t... | 01/30/1996 |
| 4838726 | Process and devices for tying crossing elements A process and device for tying metal reinforcement and/or mesh structures wherein U-shaped clips having bent and generally diverging arms are placed at the crossings of the rod to be tied together and engage twice on each of the rods of the crossing, the ... | 06/13/1989 |
| 4597239 | Lining-frame of latticework construction for galleries, tunnels or the like A lining-frame for a gallery or tunnel comprises two planar latticework trussed arches, each comprising an inner belt (3,4) and an outer belt (1,2) interconnected by a zig-zag rod chain (5,6). The arches are fixed parallel to one another by planar connect... | 07/01/1986 |
| 4112694 | Tunnel-lagging element and system A tunnel-lagging element, adapted to be embedded in spray or injection concrete for the lining of the wall of a tunnel, comprising a pair of reinforcing bars which are held substantially against the tunnel wall, and a further pair of such bars spaced from... | 09/12/1978 |
