Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7419131 | Holding device The invention relates to a holding device, preferably a shell device, which comprises a magnet that can be transferred from a locking position, in which the magnet is preferably operatively connected to a magnetizable shell support so as to magnetically act upon it,... | 09/02/2008 |
| 7331560 | Concrete form systems A system for holding poured concrete in a desired shape until it sets is disclosed. The system can include a plurality of forms having two opposing end sections. Each of the end sections has an end bracket attached to it. A plurality of footing stakes are used to co... | 02/19/2008 |
| 7255319 | Form frame for concrete footings having means to prevent relative movement between the form boards and the ground surface A square tubular steel frame extends between inner and outer concrete footing form walls and prevents the inner and outer form walls from bowing inwardly and causing an undesirable narrow footing width, or bowing outwardly and causing a form blowout. The steel frame... | 08/14/2007 |
| 7182309 | Concrete curbing forming device A cleat device (20) is taught for forming concrete curbing that jointly retains a back board form (22) and a front board form (24) with a spreader (25) spaced apart between the forms. The cleat device consists of three basic elements firs... | 02/27/2007 |
| 7134248 | Pre-cast panel form insert The present invention is directed to a pre-cast panel form insert used in precast construction. The insert comprises a substantially planar portion defining dimensions suitable to complement dimensions of a pre-cast panel form and a fluid diverting portion. The flui... | 11/14/2006 |
| 7131624 | Landscape edging form assembly and method A landscape edging form assembly for forming a concrete edging in place, includes first and second sidewalls and a series of flexible connectors extending between and interconnecting the sidewalls. The flexible connectors are spaced apart from each other in the dire... | 11/07/2006 |
| 7073768 | Device and method for setting a frame The present invention comprises an apparatus for supporting a frame from a utility container. The apparatus comprises a plurality of support members being configured to form a box. The support members are slidably attached to each other. The apparatus further compri... | 07/11/2006 |
| 7066680 | Method of forming an inlaid pattern in an asphalt surface This application relates to a method of forming an inlaid pattern in an asphalt surface. The pattern may be selected for functional or decorative purposes. In one embodiment the method comprises the steps of providing a first template having a predetermined pattern;... | 06/27/2006 |
| 7001103 | Device for producing tactile-detectable warning surfaces and method for employing same Disclosed is a stamp for forming a tactile-detectable warning surface in moldable concrete or asphalt and method for employing same. The stamp consists of a mold member having truncated dome shaped indentations distributed therein in a warning pattern, each indentat... | 02/21/2006 |
| 7000884 | Paving system In one aspect the present invention provides an apparatus for forming paving from a settable material and which comprises: a base frame having a plurality of upstanding walls which, alone or together with an adjacent positioned said base frame, defines a plurality o... | 02/21/2006 |
| 6962462 | Method of forming, installing and a system for attaching a pre-fabricated pavement slab to a subbase and the pre-fabricated pavement slab so formed A pre-fabricated pavement slab having a binder distribution system and an interconnection system formed for attachment of the bottom surface of the slab, wherein both the binder distribution system and the interconnection system are accessible from the top surface o... | 11/08/2005 |
| 6951435 | Method and apparatus for forming new and retrofit detectable warning surfaces Method and apparatus suited for forming retrofit detectable warning surfaces on existing surfaces or new warning surfaces. Apparatus includes a tool in the form of a stamp having one or more dome-shaped volumes that may be truncated domes. Dome-shaped volumes may ha... | 10/04/2005 |
| 6939078 | Tactile detectable warning ramps for pedestrian pathways A precast concrete slab and framing system is placed in walkways, curb ramps, platform edges, and areas of pedestrian traffic where they intersect with vehicular traffic, warning the visually handicapped of dangerous crossings. The precast slabs, which incorporate r... | 09/06/2005 |
| 6890124 | Method for providing a pre-cast detectable warning tile system A pre-cast textured tile system and method for positioning on walkways, crosswalks and other areas of pedestrian traffic for providing direction and warning to visually handicapped persons. The tile may be made for embedding in fresh concrete on a walking surface an... | 05/10/2005 |
| 6866239 | Concrete form assembly A form assembly for forming a concrete structure during drying of the concrete. The form assembly is formed of an elongated plastic form having a front wall for engaging the concrete and a rear wall. The front wall is spaced apart from the back wall to define a pock... | 03/15/2005 |
| 6629681 | Flexible form assembly A flexible form assembly for forming concrete structures during setting of the concrete is provided. The flexible form assembly includes an elongated form having a front side for engaging the concrete and a rear side. The rear side includes a back wall di... | 10/07/2003 |
| 6540435 | Curb mold and extruding system A molding device for placement of formed cementitious material such as concrete on a mounting surface. The device is used in combination with a supply of pressurized cementitious material communicated through a hose from a conventional cement pump or the ... | 04/01/2003 |
| 6409422 | Plastic concrete form An assembly for receiving poured concrete including a non-metallic form which surrounds an inner cavity and is capable of supporting poured concrete. In one particular embodiment, the assembly is composed of individual segments which are joined together t... | 06/25/2002 |
| 6394410 | Adjustable reinforcement insertion guide for a slip form concrete barrier mold An adjustable reinforcement insertion guide is installed within the slip form mold of a mobile concrete slip form machine, for guiding steel reinforcement screens into the mold interior during the casting of continuously poured concrete barrier walls (i.e... | 05/28/2002 |
| 6234711 | Curb and gutter frame and funnel drain A prefabricated one-piece metal frame and funnel drain is constructed for curb and gutter use. The frame may be constructed in a number of styles, with a particular style selected to match the desired curb form. The funnel drain also includes a variety of... | 05/22/2001 |
| 6226938 | Concrete pool deck and pool wall support for swimming pool construction A swimming pool deck and pool wall support that includes a unitary shell member defining two vertically extending chambers each filled with concrete. At a first end of the shell member the chambers are connected by a web. The shell member further defines ... | 05/08/2001 |
| 6161985 | Manhole collar assembly Embodiments of apparatus and a method of raising a manhole ring during construction or repair of roads are shown and described. The apparatus and method include formation of a manhole collar by use of a form that rests on a manhole cone and trimming the f... | 12/19/2000 |
| 6021994 | Flexible concrete form A flexible concrete form which can be arranged to provide both straight and curved configurations, and is adapted to flex both horizontally and vertically. The form includes a face panel and upper and lower flanges having lips on their back edges. An inte... | 02/08/2000 |
| 5993108 | Dowell rod inserter A device for inserting rods into plastic forms comprising a frame, a plunger assembly coupled to the frame, an air cylinder assembly also coupled to the frame and to the plunger assembly, and a pneumatic plumbing assembly connected to the air cylinder ass... | 11/30/1999 |
| 5975793 | Interlocking median barrier Disclosed is a non-loose hardware type traffic separating median barrier comprising having a male interlocking structure on one end and a female interlocking structure on the other end. In a preferred embodiment, the male interlocking structure comprises ... | 11/02/1999 |
| 5902068 | Vehicle arresting unit fabrication methods Vehicle arresting blocks of cellular concrete are usable to safely slow travel of an object and may be used to construct an aircraft arresting bed at the end of an airport runway. For such purposes, cellular concrete blocks must be fabricated to exhibit c... | 05/11/1999 |
| 5887846 | Mold device for forming concrete pathways In an apparatus for forming concrete pathways, a mold includes a plurality of openings for receiving concrete therein. The mold openings define separate and distinct concrete cavities. Concrete pathways, are formed by placing the mold of the invention on ... | 03/30/1999 |
| 5827009 | Tactile warning surface, method, and apparatus A tactile warning surface has an array of tactile elements made of a composite material formed on the surface of an existing substrate. The preferred composite material is a mixture of a dry powder aggregate and a liquid SBR latex. The tactile elements ar... | 10/27/1998 |
| 5817247 | Wall supporting A device 10 is provided for supporting a wall 11 of a form for containing concrete and like fluid materials. It comprises the following components and arrangements thereof relative to each other; and normally but not necessarily arranged as in FIG. 1 rela... | 10/06/1998 |
| 5733470 | Mold for casting ground covering A mold for casting ground covering, such as a plurality of stepping stones, has a generally polygon concrete molding frame having top and bottom surfaces in parallel planes and divided into openings. The frame is generally square and may include nesting p... | 03/31/1998 |
| 5647571 | Mold device for forming concrete border stones A mold apparatus for forming concrete border stones has a unitary generally rectangular body with contiguous opposed longitudinal side walls, opposed outwardly curved end walls at each end thereof, an open bottom end, an apertured top wall, and an interio... | 07/15/1997 |
| 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 |
| 5487526 | Mold device for forming concrete pathways The present invention is directed to a mold for forming concrete walkways or surfaces. The mold incorporates a plurality of openings for receiving concrete therein. The mold forms a single concrete slab having a simulated brick or rock pattern on it's sur... | 01/30/1996 |
| 5332191 | Apparatus for making concrete slabs Adjustable forms for pouring precast concrete slabs and similar articles of manufacture. The forms may be used either on site to produce concrete slabs as needed, or at a central manufacturing location, for transport to the site where needed. Concrete sla... | 07/26/1994 |
| 5320790 | Method for producing a durable tactile warning surface A patterned tool and method for producing a durable tactile warning surface for sidewalks and other walkways including pouring a concrete base, applying pigmented or colored hardener to the upper surface of the concrete base, stamping the upper surface of... | 06/14/1994 |
| 5277573 | Apparatus for fabricating precast concrete ramps A ramp for the physically challenged includes three different types of sectional portions: a slab disposed at the interface of a level surface such as a floor or earth ground; one or more ramp portions, each having a sloping upper surface, disposed adjace... | 01/11/1994 |
| 5234654 | Concrete forming system A concrete forming system including an elongated member for extending from an exterior portion of the forming system to an interior portion of the forming system whereby the concrete or other pourable formable material exerts pressure on the interior port... | 08/10/1993 |
| 5154837 | Flexible form A flexible form is presented. The flexible form may be shaped to produce the desired contour of concrete or other plastic material in the construction of various structures and is held in place by a plurality of positioning brackets. The flexible form is ... | 10/13/1992 |
| 5058854 | Containment box installation tool A tool for installing an object for example a flammable fluids containment box in a form for a concrete structure has an elongated bar oriented horizontally, and four slidable assemblies mounted on it. Two outer assemblies each have a horizontal rod secti... | 10/22/1991 |
| 5026018 | Apparatus for forming risers for concrete steps An apparatus for forming risers for concrete steps between a pair of spaced vertical walls. The apparatus takes the form of a bracket which is to connect with a length of wood such as a conventional 2×6. A threaded member associated with the bracket in t... | 06/25/1991 |
