Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 6688518 | Wall-mounted touch screen information system A wall-mounted touch screen information system includes a rugged housing with a hinged front cover. The housing is compact enough for wall mounting. A single board computer inside the housing is connected to a touch screen, a CCD camera, a card reader, an... | 02/10/2004 |
| 6686953 | Visual calibration target set method A novel process of visual calibration of a computer display or the like in volves adjusting the appearance and relative appearance of targets and su targets displayed on the display. An objective method is provided for determining the precisely optimal br... | 02/03/2004 |
| 6603268 | Method and apparatus for reducing ozone output from ion wind devices Ozone output in ion wind devices using one or more emitters (10) and an array of collectors (20) (accelerators) may be reduced through catalytic conversion of the produced ozone back to oxygen by using various materials placed in or downstream from the ai... | 08/05/2003 |
| 6595662 | Double-walled grow light housing with air flow cooling system A grow light having an exterior shell with an air inlet and a hot air exhaust outlet, and a specular interior insertable into the shell. The sides of the specular insert are spaced apart from the walls of the shell so as to form a double-walled housing ha... | 07/22/2003 |
| 6591941 | Ladder sack A ladder sack adapted for placement between the legs of a folding step ladder to provide an open platform on which to place tools or working materials while working atop the ladder, and a closed secured pouch to carry tools and working materials when the ... | 07/15/2003 |
| 6588358 | Motion dampened moored floating platform using pontoons with bridge assemblies A floating platform held in position or moored by lines or piles and providing a suitable landing for vessels for the loading and unloading of passengers and cargo. The floating platform has a configuration of buoyant elements that simultaneously support ... | 07/08/2003 |
| 6578468 | Continuous mixer or stir fry cooker An apparatus for continuously mixing food products or for continuous high temperature frying on a heat exchange surface. The rotation of an agitator (12) pushes the food product toward the discharge outlet (26) of the apparatus when the agitator is rotate... | 06/17/2003 |
| 6573834 | Apparatus for locating skis beneath snow A system to assist a skier in locating an unattached ski in powder snow after a fall includes an audible alarm member which is mounted on the ski, and a remote hand-held activator member held by the skier. The skier can trigger the alarm by operating a sw... | 06/03/2003 |
| 6563045 | Lightweight shielded conduit A lightweight flexible conduit particularly suitable for aircraft applications for shielding electrical wire and cable from electromagnetic interference and radio frequency interference. The apparatus including an inner core of elastically deformable flex... | 05/13/2003 |
| 6553941 | Animal grooming squeegee apparatus An improved squeegee with integral nozzle and wiping blade for the washing and grooming of animals, especially large animals such as horses and other livestock, includes a body portion, a valve to regulate the flow of water, a nozzle oriented to direct a ... | 04/29/2003 |
| 6520050 | Finish carpentry nailing guard A finish carpentry nailing guard adapted for use in protecting workpiece surfaces from damage by hammers while driving nails and/or from nail pulling devices when removing nails, the guard comprising a unitary block having a centrally located aperture and... | 02/18/2003 |
| 6514164 | Football apparatus A football for recreational use includes an inner core portion consisting of an air bladder or foam material, which is at least partially surrounded by an internal web of raised threads. This inner core portion and surrounding web are then covered by a th... | 02/04/2003 |
| 6511193 | Safety reflector for vehicles A small panel member of flexible, magnetized sheet material with a front surface at least partially covered with highly reflective material, and a back surface including an adhesive strip. The apparatus may be stored in a vehicle until needed, and placed ... | 01/28/2003 |
| 6507659 | Microphone apparatus for producing signals for surround reproduction A microphone apparatus or assembly includes three or more microphone elements supported on a horizontal plane or planes, which microphones are physically arranged and electrically combined such that the resulting composite stereo signals, left total and r... | 01/14/2003 |
| 6498852 | Automatic LFE audio signal derivation system An automatic LFE audio signal derivation processor incorporating signal measurement functions, signal filtering functions, signal limiting/compressing functions, signal gain adjusting functions, and operating indication functions, for use with multichanne... | 12/24/2002 |
| 6494477 | Automatic trailer hitch coupling apparatus An automatic trailer hitch coupling apparatus having a hitch bar receiver mounted on a platform at the rear end of a towing vehicle, said hitch bar receiver having a square cross section and a flanged rear end into which a hitch bar is removably inserted.... | 12/17/2002 |
| 6493984 | Fishing lure and trolling flasher A fishing lure and trolling flasher having front and back ends, top and bottom sides, and a beveled edge bordering the entire lure that tapers downwardly from the top to the bottom side and from the front to the back end. A front stabilizing fin parallel ... | 12/17/2002 |
| 6488387 | Adjustable height grow light An adjustable height grow light for easy manual adjustment of the vertical position of the light fixture. The light includes a light stand having two vertical supports and a horizontal support connected to the vertical supports and defining an interior ch... | 12/03/2002 |
| 6487962 | Apparatus for controlled hydration grain cooking An apparatus for controlled hydration and continuous full absorption cooking of a bed of particulate food product, the apparatus comprising a substantially horizontal vessel (12) in which the hydration and cooking process takes place, having an inlet end ... | 12/03/2002 |
| 6487942 | Fire sprinkler head tool A fire head sprinkler tool comprising a pair of jaw extensions which may be either integral with or removably connected to a large capacity clamping or locking pliers. The locking pliers have a movable and a fixed jaw, and the jaws define a large cylindri... | 12/03/2002 |
| 6485046 | Anti-sway trailer hitch A trailer hitch assembly for connecting a towing vehicle to a towed trailer having symmetrical anti-sway features. The assembly includes a hitch ball rigidly affixed to a hitch beam extending transversely from the rear of the towing vehicle. A pair of spr... | 11/26/2002 |
| 6478178 | Fermentation lock for wine barrel An improved stopper apparatus for use with wine barrel bung holes includes a generally frusto-conical stopper member having a central aperture, a top surface, a bottom surface, and an outer circumferential surface adapted to seal against the inner circumf... | 11/12/2002 |
| 6474524 | Backpack apparatus A pack article includes a flexible container having front, back, right side, and left side panels connected together to define an internal cavity, a flap to enable access to the internal cavity, and at least one divider within the internal cavity connecte... | 11/05/2002 |
| 6472203 | Combination air sampling cassette and nutrient media dish A combination air sampling cassette and nutrient media dish having base, orifice plate, and nutrient media dish assembly for the collection of airborne particles. The orifice plate includes a plurality of holes that brings the nutrient media dish into flu... | 10/29/2002 |
| 6464519 | Electrical extension cord with convertible plug and accommodating receptacle An electrical extension cord includes a male plug convertible between standard residential or blade-type plug elements and twist-lock blade elements, and a female receptacle plug designed to accommodate both standard and twist-lock male plugs. The male pl... | 10/15/2002 |
| 6461210 | Wakeboard with tubular frame and binding footplate having multidirectional adjustability A wakeboard having a substantially planar plastic base with a top surface and a bottom surface and a lightweight tubular alloy frame fastened at the top surface perimeter. The base is angled slightly proximate each of its ends. The frame is filled with a ... | 10/08/2002 |
| 6450185 | Paint roller cover washer A roller cover washer is provided, including a hollow pipe handle connected by a swivel-type adaptor to a water supply. The handle terminates in a water outlet end including a threaded end coupled to a T-connector and having pipe extensions perpendicular ... | 09/17/2002 |
| 6447674 | Gravity flow sludge load-out system A gravity flow sludge load-out system for rapid and accurate loading-out of large volumes of treated biosolids from a wastewater dewatering plant, said system includes a plurality of hoppers 12, 14 supported by a main structure 16 having a plurality of ve... | 09/10/2002 |
| 6446977 | Neo seal socket sealing ring A cone rock crusher for crushing rocks into sized aggregate material, including an improved protective seal that prevents external contaminants from entering the crusher's lubrication system. The seal is a rotating, self-cleaning, socket sealing ring with... | 09/10/2002 |
| 6446544 | Cooking utensil Cooking Utensil comprising a cooking pan, the pan having a flat circular bottom approximately nine inches in diameter, the pan having an angled rising surface approximately two inches above the circular bottom, the angled rising surface terminating in an ... | 09/10/2002 |
| 6430767 | Tool for installing emitters for drip irrigation A tool that enables the forming of a hole in irrigation pipe, and the placement of an emitter device into that formed hole, includes a pair of elongate plier half-members connected at a pivoting joint. A first jaw includes an inwardly-directed hole punch ... | 08/13/2002 |
| 6427869 | Method and apparatus for controlling the discharge of concrete from a concrete hose A concrete hose end insert for controlling the discharge of concrete from a concrete hose, having a base member and clamps for securing the insert to a concrete hose end, and having a vertical insert member for positioning within the interior of a concret... | 08/06/2002 |
| 6254444 | Contoured paddle for water sports An improved paddle for use with shallow draft watercraft, including kayaks, canoes, rafts, and the like, having a paddle blade with surface topography for geometrically channeling water across the surface of the blade when in use so as to reduce user fati... | 07/03/2001 |
