The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7275554 | Assistive walking device An assistive walking rear entry device including a main frame, elongated upright body weight support members connected to each side portion of the main frame and two elongated leg members connected to each body support member one extending forwardly, the other exten... | 10/02/2007 |
| 7240684 | Rain and sun shelter for automobiles The present invention discloses a rain and sun shelter for automobiles, which comprises a plurality of supporting stands, and one end of the supporting stand being installed onto a car, and an adjacent supporting stand having a horizontal rod movably disposed betwee... | 07/10/2007 |
| 7240685 | Side rail assembly for a canopy including a side rail having a hook for engaging a side rail connector on an upright of the canopy A side rail assembly for a canopy having a plurality of uprights is provided that includes a side rail having a first end and a second end with a hook attached to the first end of the side rail; and a mounting bracket mounted on a corresponding one of the uprights. ... | 07/10/2007 |
| 7237363 | Domed building construction system A domed building or mold constructed with flexible, lightweight curved panels snapped together using grooves and ridges formed in the panels to form a building wall, a tension ring holding the panels in place and a top cap overlying and secured to upper edges of the... | 07/03/2007 |
| 7234275 | Barrier and barrier system One version of the barrier system may include a first barrier and a second barrier, in which each of the first and second barriers may have a support structure and an upwardly-extending structure. In addition, the first barrier may have a retaining structure adapted... | 06/26/2007 |
| 7231742 | Structural braced frame wall panel system A metal panelized wall system having a plurality of generally parallel vertical wall studs with an opening formed in each one. A top horizontal member is connected to a top end of each of the vertical wall studs and a bottom horizontal member is connected to a botto... | 06/19/2007 |
| 7228666 | Device for equipping an expansion joint, in particular an expansion joint between concrete slabs A device for making a connection between concrete slabs, the device having two modules derived from sheets, each module having a number of flat elements which form projections, each module further having elements in the form of a right angle, having a flat part inte... | 06/12/2007 |
| 7225821 | Umbrella structure An umbrella structure according to the invention includes a cover, a shaft, a notch, a runner, main ribs and stretchers. The notch is downwardly extended to form an extension section, which is accommodated with the runner and extruded to form an integral elastic pro... | 06/05/2007 |
| 7222635 | Tent having an outer skirt and tub floor A tent (10) having a fabric enclosure (16) which including a number of walls (18), a floor (22) having a floor perimeter (4) and a framework (14) which supports the fabric enclosure (16) and urges it to expand outward... | 05/29/2007 |
| 7219680 | Backpack hunting blind A backpackable, collapsible blind designed to be mounted against a tree for use by hunters and others. The blind has a backpack-capable frame with canopy support arms that are collapsible against the frame for use as a backpack, a removable canopy, and a seat on a l... | 05/22/2007 |
| 7216460 | Drainage system for use in masonry block construction A drainage system comprises an elongate flashing member having a width similar to width of CMUs, to be received beneath a course of CMUs, in use. A layer of water permeable material is attached to an upper surface of the flashing member. The water permeable material... | 05/15/2007 |
| 7216658 | Portable vehicle shelter An apparatus for a portable pop-up carport for automobiles 18, sports utility vehicles and small trucks comprising a foldable frame structure 32 having a light weight waterproof roof 20, side panels of mesh-like material 22 and optional front and rear panels. Bungee... | 05/15/2007 |
| 7210492 | Retractable rain cover for a golf cart A retractable rain cover is attachable to a golf cart has a rigid frame extending aft from the rear roofline of a golf cart and over a golf bag carried at the rear of the cart. A flexible canopy is movable along the frame from a stowed position to a deployed positio... | 05/01/2007 |
| 7207344 | Two tier canopy system A two-tier canopy system is provided that includes a canopy support structure having a central post and a plurality of radially extending arms. A first canopy covering is supported by the radially extending arms and has a central opening, wherein the central post ex... | 04/24/2007 |
| 7207343 | Tilting umbrella with actuator having operating location on lower shaft to tilt upper shaft An umbrella frame includes an upper shaft part 2 and a lower shaft part 1, the two parts being connected by a tilting joint to enable the upper part to tilt with respect to the lower, a runner 4 sliding on the lower shaft part 1, for spre... | 04/24/2007 |
| 7200971 | Suspender bottom bracket for ceiling frameworks, a suspender having this kind of bottom bracket, and an assembly comprising a sealing framework and at least one such suspender A suspender bottom bracket for ceiling frameworks, includes a support wall that is adapted to be fastened to a rod of the suspender and is extended by two flanges in parallel planes that each have a rim parallel to the support wall, the two rims being directed towar... | 04/10/2007 |
| 7195025 | Waterproof structure of tent door and method for forming the same A first supplementary fabric 117 and a rainwater guiding fabric 118 are equipped between an inner door fabric 112 and a first zipper tape 113 attached to this, and a first waterproof tape 114 is attached on the sewing line of the r... | 03/27/2007 |
| 7191788 | Tent with window having an internal shelf A tent having window shelf that extends into a tent from the bottom of a window opening. The shelf may be formed, for example, by an inner covering of the window. The inner covering may include an outer support such as a pole so that it may maintain its configuratio... | 03/20/2007 |
| 7188634 | Cane with improved foot and handle construction A cane comprising a shaft, an ergonomic handle that includes multiple storage/retention zones, an emergency assist handle, and an ergonomically enhanced tip, or foot. The emergency assist handle, when inserted into one of two sleeves located in the shaft, provides a... | 03/13/2007 |
| 7178300 | Latch-type tile mounting system A latch-type tile mounting system for mounting a tile to the frame of a wall panel. An outwardly extending hook is engaged with the wall panel frame, and includes an outer hook portion. The tile includes a receiver within which the outer hook portion of the hook mem... | 02/20/2007 |
| 7174908 | Multipurpose net frame A multipurpose net frame which is provided with a positioning device, the positioning device is slidably disposed on a control cord of the net frame; the user can set up the net frame by easily pushing the positioning device, when folding the net frame, the user can... | 02/13/2007 |
| 7174905 | Sunshade having a tipping device A sunshade includes a hollow lower rod, a hollow upper rod located above the lower rod, and a tipping device mounted between the upper rod and the lower rod. The tipping device includes a lower connector, an upper connector, a connecting lever, a drive plate, a tens... | 02/13/2007 |
| 7171787 | Rectangular tilt-up concrete tank construction A rectangular tilt-up concrete tank includes a concrete slab with a metal plate anchored thereto, the metal plate defining at least one substantially linear concrete side wall location. A plurality of preformed concrete side panels each having metal plates attached ... | 02/06/2007 |
| 7163020 | Walking stick mounted with casters A stick mounted with casters, a lower end of a stick main body in which extensible vertical rods are connected to both ends of a grip extending in a horizontal direction is connected to a rectangular horizontal loading table. The vertical rods are self-standing thro... | 01/16/2007 |
| 7140377 | Tent with internal support A internal support structure for a tent having a shell is disclosed. The internal support structure comprises at least one internal support structure configured to provide structural support to the shell, the internal support structure having a pair of gussets each ... | 11/28/2006 |
| 7128079 | Waterproof structure of tent floor link The waterproof structure of the present invention comprises a first receptacle 102 which is formed by folding the corner portions of a tent fabric 101 in the inner direction of the tent; a second receptacle 113 which is formed opposite the first... | 10/31/2006 |
| 7108004 | Mobility aiding device A mobility aiding device, such as a walker, a wheelchair, a transport chair, a shower seat or a rollator, are used in providing support to injured or ailing persons during activity or movement. A solid two-piece seating platform is provided with a structural support... | 09/19/2006 |
| 7076454 | Method and system for electronic commerce using products satisfaction index Disclosed is an electronic commerce method in which a seller and a purchaser who are members access via Internet to a management server and undergo member authentication. The management server receives sales products information from the seller and stores the produc... | 07/11/2006 |
| 7062537 | Workflow services architecture An automated workflow services system can accommodate a wide variety of workflow scenarios. A composition service, a constraint service, and a tracking service can be provided to client programs. The composition service can support client-directed instantiation of a... | 06/13/2006 |
| 6270288 | Cable flushing lateral A cable flushing lateral is inserted into a guide tube or conduit through which a cable is to be payed out. The flushing lateral is in the form of a pipe within a pipe with a cylindrical space formed between the pipes. The inner pipe is connected to the u... | 08/07/2001 |
| 6238144 | Retaining wall and fascia system A full height, elevated base, pre-manufactured, retaining wall facing system attached to a separate closed face mechanically stabilized earth retention structure Incorporating a continuous closure beam at the top interface of the panel facing and the sepa... | 05/29/2001 |
| 6206141 | Gravity motor A gravity motor using the potential energy of an initial mass located at a relative height. This potential energy can be converted into kinetic energy. This gravity motor comprises a storage bin (26) able to contain a quantity of fragmented material (39) ... | 03/27/2001 |
| 6158297 | Surface micromachined counter-meshing gears discrimination device A surface micromachined Counter-Meshing Gears (CMG) discrimination device which functions as a mechanically coded lock. Each of two CMG has a first portion of its perimeter devoted to continuous driving teeth that mesh with respective pinion gears. Each E... | 12/12/2000 |
| 6149343 | Method and apparatus for controlling zebra mussels and other bivalves using ultraviolet radiation A method and apparatus for controlling zebra mussels and other bivalves using UV light from a medium pressure UV lamp which is located in a chamber having therein water in which the bivalves are located. The medium pressure UV lamp provides an intensity o... | 11/21/2000 |
| 6145624 | Grease coupling for the steering cable of an outboard motor, and method of making The grease coupling of this invention is made from three elements that are conventional and readily available: a nut; an externally threaded tube; and a grease fitting. These three elements are integrated to define an effective grease coupling to lubricat... | 11/14/2000 |
| 6122983 | Shift device for a manual transmission A transmission shift rail comprising a control rail and a shift fork are provided. The shift fork is not translated when the control rail is translated in a first shift plane. The shift fork is translated when the control rail is translated in a second sh... | 09/26/2000 |
| 6116815 | Process for preventing release of contamination from an underground storage tank field A system for preventing release from an underground storage tank from further migrating into surrounding geological formations and groundwater of a surrounding underground storage tank field includes a low permeable layer surrounding the tank field and a ... | 09/12/2000 |
| 6109821 | Roadway marker A roadway marker comprises a solid body member having a lower generally planar surface configured to be adhered directly to a roadway surface. The marker is injection molded as a one-piece structure from a closed-cell foam thermoplastic material using a c... | 08/29/2000 |
| 6106425 | Single assembly phased chain A chain and sprocket system includes a plurality of chain assemblies and phased or offset sprockets. The individual chain assemblies are interconnected by a retention bracket to form a single composite chain assembly.... | 08/22/2000 |
| 6095938 | Plate base of guide for chain drive A fixed chain guide for absorbing vibrations during running of a chain is composed of a shoe in sliding contact with the chain and a plate base supporting the shoe. The plate base is secured to a mounting surface by two mounting seats integral with the ba... | 08/01/2000 |