Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7243474 | Methods and apparatus for forming and placing generally horizontal structures One embodiment of the present invention provides for a method of placing a concrete structure in a generally horizontal position. The method includes building the concrete structure in an essentially vertical position, the concrete structure being defined by a first... | 07/17/2007 |
| 7238406 | Wall surfacing template A template assembly for use in the production of a variable depth building wall surface, which may be simulative of multiple units separated by mortar joints, such as a simulated brick, stone, tile, or mosaic surface. The template assembly is formed of a backing she... | 07/03/2007 |
| 7070158 | Support system for concrete column formwork and related bracket Formwork for erecting a crown on a top end of a structural concrete column of a highway bridge is supported by a pair of vertically positioned elongated jack-screws. Lower ends of these jack-screws are threaded respectively into adjusting nuts seated on outer ends o... | 07/04/2006 |
| 6962490 | Concrete extruder attachment for a vehicle A concrete extruder attachment for a vehicle includes a hopper adapted to hold flowable concrete. The hopper has an upper concrete inlet and a lower concrete outlet. A slip form is connected to the lower concrete outlet. An internal vibrator causes concrete to flow ... | 11/08/2005 |
| 6921501 | Method of forming a circumferentially closed concrete wall having the same cross-section over the entire height thereof A method of forming a circumferentially closed wall having the same cross-section over its entire length included providing at least two circumferentially closed inner falseworks each formed of circumferentially closed inner part and a circumferentially closed climb... | 07/26/2005 |
| 6770228 | Method for successive concreting of high vertical walls A method for successive concrete of high vertical walls by using a climbing shuttering system having a support structure on which various concrete shuttering elements are loaded hanging downwards. The top supporting carrier and the climbing shuttering system can be ... | 08/03/2004 |
| 6702559 | Template for creating designs A template for creating designs upon a surface. The template has apertures that are so positioned and shaped as to create the desired design upon the surface after such apertures have been filled with mud and the template has been removed. The template is... | 03/09/2004 |
| 6557817 | Wall climbing form hoist A self-climbing concrete wall form hoist for forming a concrete wall section atop a previously formed wall section has a wall mounting releasably secured to the previously formed wall section, a moveable vertical mast, a channel in the wall mounting which... | 05/06/2003 |
| 5654015 | Support arm for concrete building frame construction Apparatus for "top-down" construction technique is described. Deck formwork assemblies for each structural concrete slab are lowered and supported from the level above the same. This application describes and claims a support arm portion of the apparatus ... | 08/05/1997 |
| 5650224 | Elongated structural member and method and appartus for making same An elongated structural member suitable for use as a marine piling includes a continuous, extruded plastic body having rebar disposed within the plastic body and extending in the lengthwise direction of the structural member. The structural member is form... | 07/22/1997 |
| 5630482 | Climbing device, in particular for a climbing scaffold A self-climbing device, in particular for a climbing scaffolding, with at least one linear drive which produces a relative motion between at least one moving console and at least one mounting rail running in the displacement direction, in particular when ... | 05/20/1997 |
| 5528877 | Concrete building frame construction method A "top-down" construction technique is described. The deck form assemblies for each structural concrete slab are lowered and supported from the level above the same. In the preferred arrangement the form deck assemblies for each structural slab are suppor... | 06/25/1996 |
| 5469684 | Concrete building frame construction method A "top-down" construction technique is described. The deck form assemblies for each structural concrete slab are lowered and supported from the level above the same. In the preferred arrangement the form deck assemblies for each structural slab are suppor... | 11/28/1995 |
| 5460499 | Concrete building frame construction apparatus Apparatus for a "top-down" construction technique for concrete frame buildings is described. Deck formwork assemblies for each structural concrete slab diaphragm are lowered and supported from the structural slab above the same. This support is provided b... | 10/24/1995 |
| 5263835 | Building construction system A building construction system for progressively forming a plurality of vertical superimposed concrete segments. A plurality of screw jacks form support columns and carry at their upper ends sub-frames upon which an overlying main frame is positioned. For... | 11/23/1993 |
| 5134741 | Bridge structure prefabricated with positive imprint end panels The method comprises: the prefabrication of pairs of frames (21, 23) having a shaped surface (25) in order to form, in two contiguous segments or blocks (11), matched coupling surfaces for perfect in situ coupling; the arrangement of a plurality of spaced... | 08/04/1992 |
| 5088578 | Movable support mechanism for construction of elevator shafts and the like The invention also contemplates a retractable corner mechanism for the inside corner of the concrete form. The mechanism comprises an elongated corner member having first and second perpendicular faces joined along a first edge of each face to form a corn... | 02/18/1992 |
| 5086605 | Method of mounting floors in a shell whose concrete wall is erected by a continuous self-climbing shuttering installation A method for mounting floors in a shell whose concrete wall is erected by a continuous self-climbing shuttering installation and a continuous self-climbing shuttering installation for implementing the method, includes appropriate vertical and horizontal m... | 02/11/1992 |
| 5018955 | Decorative curbing machine An apparatus for continuously shaping and extruding concrete or other moldable material as a decorative curbing. The apparatus is operable by one person at high extrusion velocity, negotiates short radius serpentine curbing paths, and is maneuverable in t... | 05/28/1991 |
| 4974700 | Movable support mechanism for construction of elevator shafts and the like An apparatus has been provided for vertically lifting or lowering a workman and/or materials at a construction site. This includes a rectangular platform having four corners for supporting the workman and/or material so that they can be vertically moved w... | 12/04/1990 |
| 4917346 | Concrete form shuttering A form for erecting structures having an plan shape, any generatrix and possibly changing wall thickness includes an inner form (1) and an outer form (2). Circumferentially closed support rings (5,6) are arranged horizontally spaced from the inner form as... | 04/17/1990 |
| 4873738 | Apparatus for stripping concrete forms from bridge structures Apparatus for stripping concrete forms from the undersurface of a concrete roadbed of a bridge under construction has a carriage positioned on and driven longitudinally along the upper surface of the roadbed. The carriage carries spaced apart transversely... | 10/17/1989 |
| 4824350 | Sliding shuttering system The invention relates to a sliding shuttering system for producing concrete structure walls, particularly for conical and/or sloping reinforced concrete structures with annularly closed, varying cross-sections. Especially in the case of sloping structures... | 04/25/1989 |
| 4804320 | Sliding shuttering device The invention relates to a sliding process for producing concrete structure walls and a sliding shuttering means for erecting or installing monolithic block brackets, praticularly in the case of annular structures. In order to permit a continuous installa... | 02/14/1989 |
| 4784365 | Apparatus for nest-casting of concrete elements Apparatus for nest-casting of generally large elements formed of multiple angular surfaces including a side forming element of concrete useful as a mold form together with a spaced repositioned element mounted also as a side forming element for forming th... | 11/15/1988 |
| 4768938 | Apparatus for pouring concrete slabs To pour and set concrete slabs the form deck is chained to a light truck and the combination is supported between joists. The truck can be lowered while the slab is curing, and raised again before the combination is again lowered to be "flown" to another ... | 09/06/1988 |
| 4734021 | Machine for building a dome or sphere A machine for building a dome or sphere has an extruder that extrudes part of a wall of a dome or sphere from fluid material which hardens on extrusion as the extruder travels around a center axis. A ramp allows the extruder to gradually ride up onto the ... | 03/29/1988 |
| 4709899 | Climbing formwork apparatus for concrete placing A formwork apparatus for concrete placing comprises: a center frame assembly having upper and lower ends; first and second form panels for molding concrete walls, each having a supporting member mounted on an outer surface thereof, the first form panel pi... | 12/01/1987 |
| 4562989 | Apparatus for construction of concrete walls A concrete forming system for constructing small diameter concrete columns with a refractory liner on the inside of the column wall. The present invention supports the inner and outer forms for the column wall on jacking frames which travel vertically on ... | 01/07/1986 |
| 4530648 | Wall climbing form hoist A climbing form for progressively raising a form assembly in the construction of a concrete wall comprises has a support frame that adjustably carries a mast form unit, a main mast assembled with the frame for relative up and down movement, and a jib mast... | 07/23/1985 |
| 4478385 | Climbing forms Climbing forms for stepwise erection of concrete walls have a platform which is supported by a frame having elongated carriers extending at right angles to the outer side of the wall to be erected and being removably suspended on anchors which are embedde... | 10/23/1984 |
| 4374634 | Device for lifting sliding molds along steel bars for the construction of concrete buildings and the like Apparatus for successively lifting sliding molds during construction of concrete buildings and the like having a variable cross-section of straight or curved walls includes a plurality of yoke structures for supporting the sliding molds, each yoke structu... | 02/22/1983 |
| 4314798 | Apparatus for arrangement of combined stationary and slip form casting of concrete An arrangement for combined stationary form and slipform casting, including a slipform yoke capable of carrying two form halves, between which concrete is to be poured, for example for a wall or the like. According to the invention, the form halves each compri... | 02/09/1982 |
| 4260344 | Arrangement for guiding casting forms An arrangement for guiding casting forms, which comprise a so-called working plane (1) in the form of, for example, a beam system, which is capable to support two casting form halves (3,4), between which concrete is intended to be poured. The casting form... | 04/07/1981 |
| 4260345 | Arrangement for casting concrete walls An arrangement for casting concrete walls, comprising a beam system (1,50), which is capable to carry two form halves (2,3,51,52), between which concrete is to be poured. According to the invention a guide pipe (13,56) is located between the form halves a... | 04/07/1981 |
| 4253810 | Concrete placing apparatus for casting solid walls A concrete placing apparatus comprises jacks arranged in line along a wall to be erected, and U-shaped frames mounted on these jacks and connected with each other by scaffolds positioned along and on both sides of the line of arrangement of the jacks. The... | 03/03/1981 |
| 4249870 | Climbing framework for erecting concrete forms in the manufacture of straight or curved reinforced concrete walls The invention provides a climbing framework for erecting concrete forms in the manufacture of straight or curved reinforced concrete walls, with anchoring members for removably anchoring the climbing framework to the wall, and with anchoring elements whic... | 02/10/1981 |
| 4147483 | Climbing shuttering for casting concrete structures such as dams or retaining walls A climbing shuttering device comprising a panel or series of panels having a support structure and means for successively raising the panel to define the surface of successive superimposed layers of a cast structure, in which the panel is connected to a m... | 04/03/1979 |
| 4108583 | Vertically moving slip forms As a means of casting concrete floors in concrete and other structures the invention provides a type of formwork in which a platform is supported from vertical elements of the structure, the platform having vertically extending housing means depending fro... | 08/22/1978 |
| 4081227 | Slip form A slip form for walls or chimneys including opposed frames each carrying form members, the opposed frames being adjustably tied together across the wall to be poured and further positioned and braced by scissor-arms extended between adjacent frames along ... | 03/28/1978 |
