William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8104738 | Concrete shell system including clamping devices having diagonally guided wedges A turnbuckle device (12, 13, 14; 20; 35a, 35b, 35c; 44a, 44b, 44c) for clamping concrete shell elements (1, 2), having two claws (15a, 15b, 15 | 01/31/2012 |
| 7744057 | Curved concrete formwork A transverse bolt (1) is to be fastened to a formwork element (110, 120) of a concrete formwork (100), preferably a curved concrete formwork. The transverse bolt (1) comprises a first end section located at a first end of the transverse b... | 06/29/2010 |
| 7210664 | Concrete form having adjustable curvature Supplemental bridging straps are used to increase the strength of a flexible metal concrete form assembly. A metal form has a flexible panel member with a perimetral flange projected laterally from one side thereof. Each of a pair of transversely opposite side secti... | 05/01/2007 |
| 7150166 | Gap cover device for side-by-side appliances A gap cover device for covering a gap between clothes washer and dryer appliances having generally parallel juxtaposed sidewalls defining a gap between the appliances. The gap cover device includes a flexible elongated member having a generally T-shaped transverse c... | 12/19/2006 |
| 7146770 | Angle-section column-beam connector A column/beam interconnection employing angular connectors which wrap complementarily around an outside corner in a column. Each connector includes, on each of two, next-adjacent column faces, a cantilever-projecting deflectable tab which is nominally spaced from an... | 12/12/2006 |
| 7140206 | Gap cover device for side-by-side appliances A gap cover device for covering a gap between clothes washer and dryer appliances having generally parallel juxtaposed sidewalls defining a gap between the appliances. The gap cover device includes a flexible elongated member having a generally T-shaped transverse c... | 11/28/2006 |
| 7131627 | Concrete forming panel with flexible barrier A forming panel and method for using the same in construction of self-sustaining concrete wall structures is provided wherein a flexible barrier element is provided along a margin on the forming panel for impeding the flow of water and fine particles of a concrete m... | 11/07/2006 |
| 7051988 | Brace for concrete forms A brace for securing concrete form members to a casting surface. First and second leg members are spaced to form an angle. A bridging member extends between opposing ends of the leg members and a strut extends between the joined ends of the leg members and the bridg... | 05/30/2006 |
| 7048249 | Circular formwork Disclosed is a formwork element (1) which can be assembled with other formwork elements (1) so as to form a formwork structure. A formwork shell (4) having an adjustable curvature is supported by means of back supports (5) so as to create... | 05/23/2006 |
| 7048529 | Mould for curved panels The invention relates to a mold for the manufacture of curved insulating panels, which comprises an upper half-mold (2) and a lower half-mold (3) opposite each other. The structure of both said half-molds is formed by a respective chain of modul... | 05/23/2006 |
| 7018138 | Pier-repairing and reinforcing panel and method of repairing and reinforcing piers using such panels A pier-repairing and reinforcing panel is used in a method of repairing and reinforcing a pier. The panel includes locking members, locking ribs, reinforcing ribs, and clips. The method includes the steps of: installing a watertight caisson around a pier and removin... | 03/28/2006 |
| 6969041 | Method of forming concrete structures using panels having flexible barriers A forming panel and method for using the same in construction of self-sustaining concrete wall structures is provided wherein a flexible barrier element is provided along a margin on the forming panel for impeding the flow of water and fine particles of a concrete m... | 11/29/2005 |
| 6948289 | Method and means for prefabrication of 3D construction forms The invention involves a manner of fabricating 3D construction forms by preparing first and second standard sized panels with a predetermined pattern of perforations and assembling same in spaced apart relationship by connecting the panels together with connectors d... | 09/27/2005 |
| 6910672 | Corner assembly A construction form 10 for forming a concrete wall having an acute female corner 26 includes an outer wall 14, an inner wall 16, an intermediate wall 18 defining an inside corner 20 and an outside corner 22. The form ... | 06/28/2005 |
| 6865859 | Conversion corner chamfer for form work A building member forming apparatus having panels and a conversion corner bracket. The panels are typically dimensioned in metric units. The conversion corner bracket can include a leg having a predetermined width and a body configured to chamfer a building member. ... | 03/15/2005 |
| 6694692 | Modular formwork elements and assembly A modular assembly for creating formwork for casting vertical concrete structures is characterized by elongated wall elements which are disposed in edge to edge relationship in two facing rows and which are simultaneously retained in edge to edge relation... | 02/24/2004 |
| 6668511 | Formwork for pillars It is constituted by several plates (1), provided in its outer side (4) with transverse ribs (5), formed by C-shaped profiles and joined together to form a prismatic contour (7), closed by the inner flat sides of all the plates, the plates comprising a me... | 12/30/2003 |
| 6655650 | Concrete forming panel with flexible barrier A forming panel and method for using the same in construction of self-sustaining concrete wall structures is provided wherein a flexible barrier element is provided along a margin on the forming panel for impeding the flow of water and fine particles of a... | 12/02/2003 |
| 6568651 | Concrete form system A concrete form system for receiving concrete includes a plurality of interlocking form panels having opposite side ends, and which capable of being selectively arranged in series as a wall of a form configured to receive concrete. A plurality of attachme... | 05/27/2003 |
| 6530552 | Curved formwork system with varying curvature The formwork system is based on the use of modules that can be coupled to each other, both laterally and vertically, with each one comprised of a pair of metal sheets (2) that determine the inner and outer faces of the formwork, with threaded transverse r... | 03/11/2003 |
| 6502802 | Double bias corner form A corner form assembly for forming inside corners of concrete structures. A pair of double bias form components, each of which has an acute angle between a side rail and the face sheet are arranged with the side rails in contact engagement to form a form ... | 01/07/2003 |
| 6435471 | Modular formwork elements and assembly A modular assembly for creating formwork for casting vertical concrete structures is characterized by elongated wall elements which are disposed in edge to edge relationship in two facing rows and which are simultaneously retained in edge to edge relation... | 08/20/2002 |
| 6419205 | Corner bracket for concrete pouring forms A bracket for use with a system of forms for holding poured concrete forming concrete walls. The bracket is used to hold the forms at corners of the system when the concrete walls change directions. The corner bracket includes formations to hold the wall ... | 07/16/2002 |
| 6419204 | Outside conversion corner for form work A building member forming apparatus is comprised of standardized metric dimensioned panels including plywood paneling, outer horizontal support beams, vertical support beams, and inner horizontal support beams. A conversion corner bracket has a first leg ... | 07/16/2002 |
| 6352237 | Insulated concrete forming system Structures for securing foam panels in position with respect to each other in order to form a mold for the pouring of concrete, such as in the case of the pouring of a building foundation or building wall are disclosed. A first type of member which has pa... | 03/05/2002 |
| 6324804 | Concrete wall forming system Disclosed herein is a corner joint support for holding forms for casting upright concrete walls, comprising an outer form support an inner form support, the outer form support including inner and outer upright support portions joined by platforms extendin... | 12/04/2001 |
| 6322043 | Formwork system Formwork system for concrete casting, comprising formwork units built up of modular panels, horizontal and vertical brace rows, where horizontal channel profiles (3) are fastened to the formwork skin (4) with a constant spacing, vertical profiles (2) are ... | 11/27/2001 |
| 6293068 | Foam panel and channel concrete form system A prefabricated wall forming structure for constructing reinforced concrete walls employs insulating foam plastic panels that are interlocked into two parallel concrete impervious walls by connectors having two I beam channels that are spaced apart by tie... | 09/25/2001 |
| 5997792 | Apparatus and process for casting large concrete boxes A method of forming concrete integral box shaped modules provides dimensional accuracy and sustains closer tolerances thus permitting surfaces of adjacent modules to match. The method utilizes a standard fixed box frame with vertical walls that can be eas... | 12/07/1999 |
| 5975482 | Concrete form having adjustable curvature A metal form has a flexible panel member with a perimetral flange projected laterally from one side thereof. Each of a pair of transversely opposite side sections of the flange is segmented by a plurality of longitudinally spaced V-shaped notches having t... | 11/02/1999 |
| 5897816 | Concrete corner form A new Concrete Corner Form for expediting the process of laying out and setting up concrete forms. The inventive device includes a pair of corner support wall members integrally joined at one end and orthogonally oriented relative to one another, and a pa... | 04/27/1999 |
| 5709809 | Modular wall form assembly A modular wall form assembly includes two adjacent form units and a fastening lever. Each of the form units has an upright flat panel, a connecting plate extending rearwardly and inclindedly from the mating edge of the flat panel. Each of the connecting p... | 01/20/1998 |
| 5658483 | Corner joint tie A corner joint tie includes first and second forward plates connected along a common vertical edge and oriented at an angle of less than 180° with respect to one another. A pair of first and second rearward plates are connected together at the same angle... | 08/19/1997 |
| 5649401 | Foam and channel concrete form system A prefabricated wall forming structure for constructing reinforced concrete walls employs insulating foam plastic panels that are interlocked into two parallel concrete impervious walls by I beam channels that are spaced apart by tie elements. The tie ele... | 07/22/1997 |
| 5616271 | Concrete forming chamfer strip In order to form a chamfer on an outside corner of a poured concrete structure, a concrete forming system includes a first form panel having an inwardly facing surface and second form panel also having an inwardly facing surface. The first form panel is s... | 04/01/1997 |
| 5562272 | Splicers for aggregate construction forms Metallic channel members hold forms for making pads, sidewalks, foundations, headwalls, and other structures. In a first embodiment, a channel member of linear configuration has a width that tightly receives abutting forms and has sidewalls of differing h... | 10/08/1996 |
| 5456444 | Concrete form wall assemblies and methods A wall form assembly (10, 10", 10'") has a pair of form wall assemblies (12A, 12B) which are kept in preselected spaced parallel relationship by means of cross members (16) fitted within end slots (36) and interlocked by means of pins (38) with elongate b... | 10/10/1995 |
| 5397095 | Modular building system A modular building system for constructing the frame of a structure. Standardized foundation forms, vertical forms, and tie beam forms are attached to each other. The vertical forms are hinged so as to be capable of defining a corner of any angle. Cover p... | 03/14/1995 |
| 5230907 | Inside corner form An inside corner form for forming an inside corner of a wall structure for casting concrete includes a central member for forming the corner, side members for forming portions of the walls adjacent the corner, an actuator for expanding and contracting the... | 07/27/1993 |
| 5205944 | Universal cornering system The present invention includes a concrete corner forming device of solid metal construction for forming a 45° angle, 90° angle, off set angle, and the hinge type angle that forms other various degree angles. The hinge type corner can adapt to most any a... | 04/27/1993 |