Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7334374 | Stucco sheathing fastener A fastener including a body having a predetermined axial length, wherein the body includes a screw head at one axial end of the body, a threaded portion at an opposite axial end of the body and an unthreaded shank portion extending between the screw head and the thr... | 02/26/2008 |
| 6942142 | Voting ballot, voting machine, and associated methods A voting ballot is provided that comprises a number of selection areas positioned thereon. The voting ballot also includes a ballot specification embodied in a two dimensional bar code and a number of coordinates included in the ballot specification. Each of the coo... | 09/13/2005 |
| 6928778 | Stucco anchorage nail A fastener including a body having a predetermined axial length, wherein the body includes a nail head at one axial end of the body, a textured portion at an opposite axial end of the body, a shank portion extending between the nail head and the textured portion, an... | 08/16/2005 |
| 6918222 | Fastener for spacing object from substrate A novel fastener for holding and spacing an object at a predetermined distance from a substrate comprises a bridge portion, a first prong extending in a driving direction from the bridge portion, and a second prong spaced from the first prong and extending generally... | 07/19/2005 |
| 6907699 | Gypsum wallboard fastener A fastener for securing a 0.625 inch (ā inch) thick gypsum wallboard panel to a wooden building frame. The fastener includes a body having a predetermined axial length. The body includes a cupped head at one axial end of the body, having a diameter that is at leas... | 06/21/2005 |
| 6883284 | Masonry wall device A device for use in structures having masonry cavity wall construction for promoting removal of water and water vapor between a masonry exterior wall and a structural back-up wall. A plurality of the devices, which are elongated and have a generally āVā shape, a... | 04/26/2005 |
| 6820387 | Self-stiffened welded wire lath assembly A self-furring wire lath has stiffening trusses. In a preferred embodiment the lath comprises a grid of intersecting transverse and longitudinal wires welded at their intersections. Stiffening trusses are formed at bent sections in the transverse wires by first long... | 11/23/2004 |
| 6367216 | Fastener clip for security wall system A fastener clip for use in constructing a security wall system, and a security wall system so constructed are disclosed. The fastener clip has an elongate smooth surfaced planar body, a counter-sunk fastener recess formed s centrally within the body, a fa... | 04/09/2002 |
| 6173542 | Snap-on wood trim molding Disclosed is an otherwise conventional wood molding that has a keyhole slot milled along its length on the mounting side thereof. Special mounting plates are attached to the wall via nails or other fasteners and include a specially designed key protrusion... | 01/16/2001 |
| 4649689 | Insulation fastener system An insulation system utilizes a plurality of insulation fasteners to support an insulation board or the like adjacent the roof-supporting framework/purlins of a building. Each fastener comprises a clip member with projecting shank with the former engageab... | 03/17/1987 |
| 4641471 | Fastener for securing roofing material to cementitious roof decks A sheet metal nail of the type for securing built-up roofing membranes used to waterproof cementitious roof decks has a head and a hollow shank portion integral therewith and designed to resist withdrawal of the nail from the deck in a conventional manner... | 02/10/1987 |
| 4641474 | Sta-put wallboard joiner A fastener for supporting a section of wallboard inserted into the opening of a wall consisting of a metal clip having a pair of flat segments for engaging adjacent portions of the section and the wall. A V-shaped member connects the two flat segments and... | 02/10/1987 |
| 4641472 | Fastener for securing roofing material to cementitious roof decks having removable tab A fastener for securing built-up roofing membranes used to waterproof cementitious roof decks combines the conventional nail used for this purpose having a head and a shank portion designed to resist withdrawal of the fastener from the deck, with a non-in... | 02/10/1987 |
| 4627207 | Fastener for securing roofing material to cementitious roof decks having removable tab A fastener for securing built-up roofing membranes used to waterproof cementitious roof decks combines the conventional nail used for this purpose having a head and a shank portion designed to resist withdrawal of the fastener from the deck, with a non-in... | 12/09/1986 |
| 4621473 | Field attachment clip for wall panels An integral clip for attaching wall panels to metal studs having flanges in engagement with the occluded surfaces of the wall panels, the clip comprising impaling points adapted to be driven into the occluded surface of the panel for securing the clip to ... | 11/11/1986 |
| 4578922 | Wire impaling clip for gypsum panels Gypsum panels and the like are attached to "H" studs by a resilient, one-piece wire clip having talons which are anchored in the edge of a panel and a clamping portion which grips a flange of the stud.... | 04/01/1986 |
| 4567706 | Edge attachment clip for wall panels An integral clip for attaching wall panels to metal studs having flanges in engagement with the wall panels, the clip comprising impaling points adapted to be driven into the edge of a panel and additional impaling points adapted to be driven into a major... | 02/04/1986 |
| 4471592 | Strapping band for retaining insulation between wall studs and method of manufacture and use A metal strapping band to support flexible insulation within a wall cavity between spaced-apart wall studs, which strapping band comprises an elongated, metal strapping band having a plurality of uniformly spaced-apart lines of weakness therein extending ... | 09/18/1984 |
| 4377060 | Wall construction A wall construction utilizing unique fastening clips to demountably secure wall panels to a suitable supporting structure, such as a stud, the fastening clips being constructed such that the outer surface of adjacent panels are maintained substantially fl... | 03/22/1983 |
| 4251961 | Detachable insulating cover assembly for greenhouses and the like A detachable insulating cover assembly for greenhouses and similar structures using plastic cover sheets for the creation of a stationary air layer, the sheets being held in place by manually clampable and releasable fastener assemblies, each consisting o... | 02/24/1981 |
| 4215519 | Method for cast-in-place concrete walls A method for installing insulation on cast-in-place concrete walls. The method makes efficient use of expensive wall ties used during cast-in-place construction and provides for a quick, easy to learn, cost and labor saving method for insulating concrete ... | 08/05/1980 |
