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 |
| 8117791 | Abutment member An abutment is provided for use as a start or end post of a plasterboard partition wall or as a join between two such walls which run in different directions. The abutment comprises an elongate plaster moulding designed to run between the ceiling and the floor and h... | 02/21/2012 |
| 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 |
| 7244304 | Gypsum-containing board and tile, and method for producing same A method for producing a set gypsum-containing product comprising an interlocking matrix of set gypsum wherein said method comprises applying to said set gypsum one or more enhancing materials selected from the group consisting of phosphoric acid; condensed phosphor... | 07/17/2007 |
| 7165368 | Insulation blanket with cut guidelines A blanket of fibrous building insulation is provided, for in situ cutting to correspond to spacings between studs or like building members between which the insulation is to be applied. The blanket includes a layer of fibrous insulation material and a facing materia... | 01/23/2007 |
| 7162844 | Use of partial precast panels for construction of concrete walls and shells A precast panel for building reinforced concrete walls has a metal liner that forms a front surface of the panel. A concrete mass is disposed behind the liner. The panel has reinforcement structure within the concrete mass that can be used to provide continuity of r... | 01/16/2007 |
| 7155866 | Cementitious exterior sheathing product having improved interlaminar bond strength The present invention provides exterior building products, such as roofing and siding, shake, shingles, siding, sheathing, panels, planks, vertical siding, soffit panels, fencing, decking, fascia, corner posts, column corners and trim boards in which a plurality of ... | 01/02/2007 |
| 7137231 | Drywall bead with knurled paper flaps and method of making same A drywall joint assembly strip device comprised of an elongate core having a cover bonded to its exterior surface and extending beyond its longitudinal edges to form flexible flaps in which longitudinal, parallel grooves and ridges and/or spaced-apart perforations a... | 11/21/2006 |
| 7127857 | Subfloor assembly for athletic playing surface having improved deflection characteristics A floor support assembly including first and second subfloors is disclosed. The first subfloor is supported over a substrate by a plurality of pads. Each pad is housed in a corresponding recess formed in the first subfloor. Each recess includes a ridge that is in co... | 10/31/2006 |
| 7127858 | Interior wall and partition construction An improved interior wall construction that provides both sound attenuating and fire resistant properties. The improved wall construction eliminates the need for conventional vertical studs by including at least one rigid interior structural panel comprised of compr... | 10/31/2006 |
| 7070648 | Preparation of gypsum compositions A gypsum composition containing a sulfonate-containing comb-branched copolymer is disclosed. The sulfonate-containing comb-branched copolymer comprises recurring units of a polyether macromonomer, an acrylic monomer, and a sulfonate monomer. The sulfonate-containing... | 07/04/2006 |
| 7049251 | Facing material with controlled porosity for construction boards This invention provides facing materials for cementitious boards such as those including Portland cement or gypsum cores. The preferred facing material includes, in a first embodiment, a facing layer having an areal weight of about 300 grams/M2, and an ai... | 05/23/2006 |
| 7032356 | Interior wall and partition construction An improved interior wall construction that provides both sound attenuating and fire resistant properties. The improved wall construction eliminates the need for conventional vertical studs by including at least one rigid interior structural panel comprised of compr... | 04/25/2006 |
| 6920729 | Composite wall tie An insulated load bearing building wall structure comprising a plurality of spaced-apart stud members, each stud member comprising an exterior bar member, an interior bar member, and a plurality of wall ties connected there between. Interstitial blocks comprising a ... | 07/26/2005 |
| 6901713 | Multipurpose composite wallboard panel A multipurpose composite wallboard panel is disclosed as having an aluminum sheet (14) attached by means of an adhesive (16) to a wallboard panel (12), such as a gypsum wallboard panel. Such a composite panel can readily be handled and quickly a... | 06/07/2005 |
| 6854702 | Form for manufacturing concrete blocks for freestanding walls A form for manufacturing concrete blocks for constructing freestanding walls. The form includes a base and four side panels which are mounted on the base to pivot between a first position for casting a block and a second position for removing a cast block from the f... | 02/15/2005 |
| 6833188 | Lightweight cementitious composite material A lightweight cementitious composite material includes expanded synthetic polymer particulate having a particle size of between 0.0625 and 0.5 inches. A dispersant coating on said particulate suppresses electrostatic attraction between particulate particles. A matri... | 12/21/2004 |
| 6698144 | Stucco casing bead An improved curtain wall casing bead for installation on buildings having stucco or similar curtain wall exteriors. The improved curtain wall casing bead incorporates a mesh attached to at least the front wall of the casing or starter bead, which mesh ext... | 03/02/2004 |
| 6668501 | Stucco fastening system A shear wall system comprises stucco fasteners consisting of an elongated first portion that is driven into a wood frame wall, and an elongated second portion that is completely embedded in a stucco wall panel. In one embodiment, the fasteners consist of ... | 12/30/2003 |
| 6662513 | Preshaped form A prefabricated relief form member for use as an architectural feature on a structure formed alternatively by use of welded wire mesh, double wire welded wire mesh, corner beads fixed together, or woven wire mesh and optionally using corner beads at the c... | 12/16/2003 |
| 6655103 | Plastic panel, in particular for lining concrete components A concrete-protecting panel with integrated undercut protuberances which has an enhanced resistance to groundwater pressure. The protuberances or wing-element pairs (3) of the plastic panel (1) have spread wing elements (3) which may spread open even furt... | 12/02/2003 |
| 6591566 | Preshaped form A prefabricated relief form member for use as an architectural feature on a structure formed alternatively by use of welded wire mesh, double wire welded wire mesh, corner beads fixed together, or woven wire mesh and optionally using corner beads at the c... | 07/15/2003 |
| 6557818 | Form for manufacturing concrete retaining wall blocks A form for manufacturing concrete retaining wall blocks. The blocks are cast in the form with a front face of the block down. A resilient face insert at the bottom of the form imparts an ornamental appearance to the front face of the block. The form has f... | 05/06/2003 |
| 6527850 | Use of comb-branched copolymers in gypsum compositions A gypsum composition suitable for use in the manufacture of construction materials is provided. The gypsum composition includes gypsum, water, and a dispersant formulation comprising an acrylic/polyether comb-branched copolymer. A method of making a gypsu... | 03/04/2003 |
| 6481171 | Gypsum compositions and related methods A set gypsum composition and methods for the preparation thereof are disclosed. The set gypsum composition comprises a continuous phase of interlocking set gypsum matrix having an enhanced water voids volume and/or is prepared from a mixture (e.g., slurry... | 11/19/2002 |
| 6393789 | Refractory anchor A refractory anchor and method of use. The anchor is made by combining two similar sections that are clinched together to form an elongated X-shape. The bilateral symmetrical shape affords maximum anchorage of the refractory, and through-flow of the refra... | 05/28/2002 |
| 6378263 | Wall patching device A wall patching device for attachment to the inside of a wall adjacent to a hole in the wall to fill and patch the hole. The wall patching device includes a rigid plate having a plurality of holes therein, the plate having two wings connected by a raised ... | 04/30/2002 |
| 6363679 | Fastening device Fastening devices of this invention comprise a screw and a spacer element. The spacer element can be cylindrical in shape and includes a central opening extending between opposite axial surfaces. One or more grooves are disposed within and extend diametri... | 04/02/2002 |
| 6298609 | Construction system with panel support accessory A construction system including a panel support accessory is disclosed. In addition to the panel support construction accessory, the construction system includes at least one structural support member, a construction panel and a coating. The panel support... | 10/09/2001 |
| 6282851 | Door frames A door frame comprises opposed door jambs and a door head, with the jambs and head each being formed from a metal section (6) of channel-shape having a base wall (8) which carries a door stop (12) and opposed side walls (10) of a width such that when the ... | 09/04/2001 |
| 6134847 | Construction accessory A construction accessory for use with a construction panel includes a flange having an inner surface adapted to face the construction panel and an outer surface opposite the inner surface. The flange further includes at least one perforation extending thr... | 10/24/2000 |
| 6119429 | Construction system and accessory A construction system includes an accessory and a construction panel. The accessory includes a first flange, a second flange and a third flange extending between the first flange and the second flange. The first flange, the second flange and the third fla... | 09/19/2000 |
| 6044607 | Modular polymer matrix composite support structure and methods of constructing same A load bearing deck of a modular structural section for use in support structures such as a load bearing deck or highway bridge. The at least one modular structural section includes at least one beam and a load bearing deck preferably formed of a polymer ... | 04/04/2000 |
| 6035595 | Self-sealing fastener A self-sealing furring nail has a nail and a furring wad assembly. The furring wad assembly includes a plunger friction fit on the nail and a housing friction fit on a shaft of the plunger at one end of the housing, and at the other end of the housing the... | 03/14/2000 |
| 5879446 | Gypsum wallboard, and method of making same A method of preparation of gypsum wallboard, as well as a core composition suitable for use therein, are disclosed. The core composition includes a slurry of calcium sulfate hemihydrate (stucco), water, and calcium aluminum lignosulfonate and/or aluminum ... | 03/09/1999 |
| 5685116 | Preshaped form A system of prefabricated plaster relief forms are manufactured to be applied to prepared walls of a building, such as a home or other structure. The prefabricated forms are made of an open work lattice material formed into a channel shape having a top, t... | 11/11/1997 |
| 5528876 | Wall structure for buildings A wall structure for buildings comprising a plurality of vertical frames spaced equidistant and two steel nets welded with the front side and the rear side of the frames to form a front and a rear side of a wall, each frame consisting of two vertical para... | 06/25/1996 |
| 5401588 | Gypsum microfiber sheet material The novel composition of the present invention comprises a paper-like sheet material or a non-woven mat which contains water-insoluble gypsum anhydrite microfibers and a cellulosic binder, such as cellulose fibers, optionally with glass fibers, which has ... | 03/28/1995 |
| 5398472 | Fiber-bale composite structural system and method The invention relates to systems and methods for quickly erecting horizontal and vertical structural members for use in residential, commercial, or industrial construction. The system utilizes building blocks composed of baled straw or other fibrous mater... | 03/21/1995 |
| 5177918 | Wall structure A shock-absorption wall structure comprising a framework of elastic beams having a light steel frame covered with a certain number of base plates is disclosed. The base plates have at least two or more rows of parallel sheets in the upper/lower sides or l... | 01/12/1993 |
| 5148645 | Use of fibrous mat-faced gypsum board in shaft wall assemblies and improved fire resistant board Glass mat-faced gypsum boards having a set core containing gypsum dihydrate and at least a minimum amount of chopped fibers, as well as other optional fire-resistant additives, are provided. The resulting boards obtain superior fire resistance properties ... | 09/22/1992 |
