Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7371316 | Production of lower molecular weight hydrocarbons A catalytic composition useful for cracking and reducing the viscosity of heavy hydrocarbons. The catalytic composition comprises Portland cement, a volcanic ash component, titanium dioxide, and a transition metal salt. Optionally, a hydrogen source is added to the ... | 05/13/2008 |
| 7357602 | Reinforcing device and a bifacial reinforcing unit for earthworks and a method for the production of a reinforced earthwork A reinforcing device for earthworks comprises at least one reinforcing base element (3) from which extend a front wall (9) and a containment wall (15) which are spaced from each other to delimit, in an operative configuration in which they are e... | 04/15/2008 |
| 7337589 | Interlocking blocks for construction Interlocking blocks for construction preferably include an in-line block, a corner block, an offset block and end blocks. The in-line block includes a connector extension disposed on one end and a connector cavity formed on the opposite end thereof. The connector ca... | 03/04/2008 |
| 7299594 | Brick patterned shelving An apparatus for at least one of providing a decorative shelf, decorative framing, decorative shelving, decorative paneling and a decorative member for supporting and hanging preselected articles. The apparatus comprises a panel member formed with a brick like desig... | 11/27/2007 |
| 7244079 | Retaining wall system A retaining wall system is comprised of a plurality of courses of side-by-side parallelogram front face patterns, each parallelogram front face pattern formed by first and second rows of a plurality of quadrilateral face patterns. The first and second rows of the pl... | 07/17/2007 |
| 7229235 | Retaining wall system A retaining wall system is comprised of a plurality of courses of side-by-side parallelogram front face patterns, each parallelogram front face pattern formed by first and second rows of a plurality of quadrilateral face patterns. The first and second rows of the pl... | 06/12/2007 |
| 7118309 | Component for spatial grid supporting systems comprising filler material especially for retaining walls or noise-abatement walls, and corresponding structure The invention relates to a component for spatial grid supporting systems comprising filler material, especially for retaining walls and/or noise-abatement walls. Said component comprises the following characteristics: a closed or open, single-element or multi-elemen... | 10/10/2006 |
| 6964808 | Wall surface panel capable of generating minus ions utilizing natural volcanic ash soil A wall is formed by adding a predetermined amount of binding agent and water to volcanic ash sediment, which is comprised of mineral silicate including at least silicic acid and aluminum oxide, kneading them, and applying to an arbitrary plane. Through a natural rea... | 11/15/2005 |
| 6960048 | Modular segmented retaining wall A modular retaining wall system uses a plurality of different sized masonry blocks to form uniform sized modules for constructing a segmented retaining wall. Each module has the same overall dimensions of height, width and depth, while the masonry blocks used to def... | 11/01/2005 |
| 6938382 | Stockade A palisade comprises visible or wall surfaces disposed on opposing sides and intermediate end faces. One of the end faces is provided with a projecting convex head, while the other end face comprises a correspondingly formed concave receptacle for the head. When for... | 09/06/2005 |
| 6886304 | Multi-layer slab product made of stone granulates and relative manufacturing process The invention concerns a product and the relative manufacturing process, said product, including at least a precast support (2) of expanded material and at least a layer (3) of agglomerated stone material in form of granulates bound by a binding phase,... | 05/03/2005 |
| 6851235 | Building block with a cement-based attachment layer A building block has a cement-based attachment layer on one or both exterior surfaces of the block that can receive and hold a penetrating fastener such as a nail, screw, staple, or the like. This allows surficial coverings such as wallboard, siding or other materia... | 02/08/2005 |
| 6818275 | Composite tile for flooring A composite floor tile is disclosed which can be installed without bonding it to a floor foundation or an existing floor. This composite tile comprises a base member of a metal material which is bonded on its top to a slab of a stone material and is bonded on its bo... | 11/16/2004 |
| 6799405 | Masonry unit and masonry system, and method of use The present invention is a masonry unit, masonry system and method of constructing a structure using the system. In its most basic form, the masonry unit of the present invention includes substantially parallel top and bottom surfaces, substantially parallel a front... | 10/05/2004 |
| 6790544 | Multiple layer composite material consisting of cement-bound concrete and polymer-bound concrete and method for producing the same The present invention relates to a multiple layer composite material and to a method for producing the same. Said multiple layer composite material has at least one layer of cement-bound concrete and at least one layer of polymer-bound concrete. The transition betwe... | 09/14/2004 |
| 6634145 | Modular stone stair system A modular stone stair system using a plurality of modules in the form of stringers, risers, treads and landings in standardized thicknesses and widths. The risers, landings (if any) and treads have different widths dependent upon the width of the stairs d... | 10/21/2003 |
| 6629395 | Wall unit forming method and apparatus A method of forming a wall unit having a veneer face is disclosed. Initially, a pair of side wall panels and a pair of end panels are mounted substantially upright. Stones or other suitable material are set sequentially in a horizontally disposed course u... | 10/07/2003 |
| 6606835 | Blocks and walls constructed therewith A cementations block for seating in adjacent and adjoining relation with a plurality of the cementations blocks to define a wall, with each block comprising a body having a top and an opposing bottom, opposing front and back faces, and a first and second ... | 08/19/2003 |
| 6523317 | Wall block with interlock A wall block arranged to be stacked vertically for creation of a retaining wall, the block being of generally trapezoidal configuration having parallelly arranged front and rear surfaces along with opposed top and bottom surfaces. The top surface has fron... | 02/25/2003 |
| 6494008 | Dual section sound wall panel and method of manufacture A dual membered sound wall panel constructed of two pre-formed half-panels. The half-panels have an inner surface that contains a plurality of connectors around their periphery and an outer surface. The outer surface may be textured if desired. The half-p... | 12/17/2002 |
| 6430886 | Building stone and masonry formed therefrom A building block for forming a masonry structure comprises at least two stone members disposed one above the other and connected firmly to each other, each of which having a wide section at one end and a narrow section at the opposite end. The sections ma... | 08/13/2002 |
| 6311444 | Lightweight concrete masonry unit The lightweight concrete masonry unit of the present invention contains, before being mixed with water, about 11 to 11.5% by weight of cement, about 47 to 47.5% by weight of pumice lightweight aggregate, about 22.5 to 23% by weight of other aggregate, abo... | 11/06/2001 |
| 6305135 | Composite building material and method for manufacturing the same Provided is a composite building material which is more improved in the bonding capability of a cement mortar material itself with a foamed synthetic resin plate layer, furthermore prevents the occurrences of exfoliations and cracks and has higher strengt... | 10/23/2001 |
| 6298622 | Self-supporting construction element of expanded plastics, in particular for manufacturing floor elements and walls of buildings in general A self-supporting construction element (1, 101) of expanded plastics, in particular for manufacturing floor elements and walls of buildings in general comprises: (1) a central body (2), substantially parallelepipedic in shape and having two opposite faces... | 10/09/2001 |
| 6247286 | Modular structural element A modular structural element, including a planar surface layer of cladding material. A substrate layer is bonded to the surface layer and includes an outwardly-extending attachment flange defined by the thickness of the substrate layer and proximal to the... | 06/19/2001 |
| 6240693 | Interlocking and insulating form pattern assembly for creating a wall structure for receiving poured concrete and method for producing a form pattern assembly An interlocking and insulating form pattern assembly used in creating a wall structure for receiving a poured concrete. A first elongate form structure has a substantially rectangular configuration with a height, a length and a width. The first form struc... | 06/05/2001 |
| 6230458 | Fire-resistant composite slab, a process for its production as well as its use A fire-resistant composite slab, especially one that is composed of three layers, which has a central layer made of glued, inorganic expanded materials combined with inorganic fiber-containing fillers. Outer layers in the form of slabs are provided on bot... | 05/15/2001 |
| 6205727 | Process for the production of reinforced slabs of stone materials and reinforced slabs of stone material The application of a reinforcing layer to the visible face of slabs of stone material. For slabs of marble and granite, especially thin slabs, the reinforcing layer is constituted by non-twisted glass threads, preferably in the form of a mat, and by a tra... | 03/27/2001 |
| 6145257 | Method and system for forming walls A method and system for forming walls includes a dual-wall cavity. A stud is formed of an outer flange, middle flange and inner flange arranged in an "E" shape configuration. An outer panel attaches to the outer flange, a middle panel attaches to the midd... | 11/14/2000 |
| 6112487 | Decorative wall and method of fabrication A constructed wall structure and method of fabrication that replicates a wall formed by nature. The structure has a plurality of discrete layers, with each layer constructed of concrete and a decorative additive. Every layer has an interface with an adjac... | 09/05/2000 |
| 6085480 | Building block having a wooden attachment layer A concrete-based building block has an integrally-formed wooden attachment layer on one or both exterior surfaces of the block that can receive and hold a penetrating fastener such as a nail, screw, staple, or the like. This allows surficial coverings suc... | 07/11/2000 |
| 6082074 | Method of fabricating layered decorative wall A method of fabricating a formed wall structure having a plurality of discrete layers. The method includes pouring a first layer of a first concrete mixture into a first vertical form whose depth is equal to that of the first layer; pouring a second layer... | 07/04/2000 |
| 6062772 | Plastic block retaining wall with attached keylock facing panels An inexpensive, yet beautiful retaining wall may be formed with architecturally pleasing, coordinating or matching materials such as marble, granite, stone, metal or the like. Architecturally pleasing, thin decorative facing panels are attached to plastic... | 05/16/2000 |
| 6032429 | Damp-proof brick cover A damp-proof insulation brick cover having an empty space at the bottom of the dampproof brick cover formed of rectangular hexahedrons, formed as a unit including a pair of side walls, a pair of longitudinal walls, and an upper panel part. At certain inte... | 03/07/2000 |
| 5941043 | Large-format fireclay refractory brick and method for its production A large-format fireclay refractory brick (1), in particular bottom block in a tin bath, made of a material from the system Al2 O3--SiO.sub.2, consists of a block (2) having a top surface (3) contacting the tin bath when in use. The t... | 08/24/1999 |
| 5934035 | Modular pillar The modular pillar is assembled by overlaying precast brick layers, one on top of the other to form a pillar of such layers. Each layer has a depression, groove, channel, cut-out, or the like, of recessing one of its horizontal surfaces for interlocking m... | 08/10/1999 |
| 5930964 | Composite lightweight building element and methods of making and using same A composite lightweight building element comprises a first layer of aggregate based material (7, 8 and 9) extruded, sprayed, molded or cast onto a lightweight base form (1) which becomes an integral part of the element. This element can be manufactured in... | 08/03/1999 |
| 5918429 | Method and apparatus for providing concrete products having improved surface and structural characteristics Disclosed is a method for providing an improved cementitious product which includes improved surface characteristics such as skid resistance, as well as improved structural characteristics such as flexural toughness. The product is provided by the inclusi... | 07/06/1999 |
| 5913791 | Building block, method for making the same, and method for building a wall using the same A building block has a cement-based attachment layer on one or both exterior surfaces of the block that receives and holds a penetrating fastener such as a nail, screw, staple, or the like. This allows surficial coverings such as wallboard, siding or othe... | 06/22/1999 |
| 5887399 | Decorative wall and method of fabrication A constructed wall structure and method of fabrication that replicates a wall formed by nature. The structure has a plurality of discrete layers, with each layer constructed of concrete and a decorative additive. Every layer has an interface with an adjac... | 03/30/1999 |
