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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6543912 | Construction for decorative patterning, distribution of illumination, and flexible projection of linear light sources A light assembly includes a linear light source has a longitudinal axis and a refractor and/or a reflector. A main refractor extends along the length of the light source and parallel thereto. The main refractor has a rear portion coated with a reflecting ... | 04/08/2003 |
| 6419358 | Pseudoelastic ଲ titanium eyeglass components A new eyeglass frame, eyeglass frame component and method for making eyeglass frames or parts thereof of a nickel-free titanium based SMA. A pseudoelastic ଲ titanium alloy is used which has superior fabricating characteristics combined with weldabil... | 07/16/2002 |
| 6375458 | Medical instruments and devices and parts thereof using shape memory alloys Fabrication of metal medical instruments and devices from a shape memory alloy which provides greater flexibility in design and avoids the need for substantial cold working of the alloy which is required in other methods. The new process provides a ductil... | 04/23/2002 |
| 6361191 | Off-axis and segment collimation and projection A light assembly including a central axis along which a light source is intended to be located. A ring lens at least partially surrounds the central axis, the lens having a central projection along a projection axis for projecting the light passing throug... | 03/26/2002 |
| 6354725 | Broad architectural illumination from expanded and remote light distribution optics of luminaires A light assembly includes a radial beam projector for being positioned in the vicinity of a ceiling of a room and spaced from at least some of the walls thereof. There may be at least two reflectors or refractors on or adjacent to the walls or ceiling of ... | 03/12/2002 |
| 5897201 | Architectural lighting distributed from contained radially collimated light From a quasi point source, light distribution means produce a selected one or ones of broadly distributed ambient light, non-shadowing task illumination, multibeam display lighting, projective lineal lighting and projective surface washing illumination li... | 04/27/1999 |
| 5568391 | Automated tile mosaic creation system Tile mosaics are created for architectural decorative surfaces or other purposes using mosaic design system linked with a manufacturing sequence to enable efficient design of mosaics and complex filings, implemented in a production line with elements for ... | 10/22/1996 |
| 5503003 | Portable viscometer Viscometer with a spindle (4) mounted on a shaft (8) supported via axially spaced, e.g. three inches, bearings (12,14) and driving a transducer rotary member via a stiff rotationally resilient member, the latter providing substantially all the resistive t... | 04/02/1996 |
| 5397053 | Temperature responsive, pilot operated line valve with shape memory alloy actuator A shape memory effect actuated diaphragmatic anti-scald valve, including a valve housing having a fluid flow path therethrough and including a pilot chamber. There is a first valve seat within the housing and a second valve seat within the housing and dow... | 03/14/1995 |
| 5288474 | Process for the production of lead metal niobates Process for the production of phase-pure highly reactive lead metal niobates of perovskite structure corresponding to the general formula Pb3 Me(II)Nb2 O9 or Pb2 Me(III)NbO6, where Me.dbd.Mg, Fe, Co, ... | 02/22/1994 |
| 5259554 | Temperature responsive, pilot operated line valve with shape memory alloy actuator A shape memory effect actuated diaphragmatic anti-scald valve, including a valve housing having a fluid flow path therethrough and including a pilot chamber. There is a first valve seat within the housing and a second valve seat within the housing and dow... | 11/09/1993 |
| 5256611 | Colored corundum composite and processes for its production and its use Colored corundum composite with a matrix of -Al2 O3, as formed by sol-gel process ending in sintering and size reduction steps with addition of oxide pigments (or precursors of such oxide pigments, formable to the oxide pigmen... | 10/26/1993 |
| 5209910 | Process for the recovery and separation of tantalum and niobium Improved solvent extraction recovery of tantalum and niobium oxides from an acid solution of raw materials containing such oxides wherein the charged organic solvent [e.g., MIBK] is washed out (a) with 8-16N sulfuric acid and then (b) with water or dilute... | 05/11/1993 |
| 5194232 | Process for the preparation of tantalum/niobium hydroxides and oxides with a low fluoride content Fluorine content of tantalum and niobium hydroxides is reduced to under 0.5 weight % by washing such hydroxide precipitates (as obtained by HF digestion and solvent extraction) with dilute ammonia (1 to 10%) and then water in two washing stages. The first... | 03/16/1993 |
| 5194086 | Process for the recovery of valuable materials from slags of metallothermic processes The metal-values bearing slags of metallothermic processes are separated from metal melts and then fully reduced electrothermally with carbon to form a new metal melt. Slag removed from the new metal melt is essentially free of said metal values.... | 03/16/1993 |
| 5194073 | Sintered composite abrasive materials, a process for its production and its use Sintered composite abrasive material useful in abrasives (grinding wheels, abrasive discs and paper, etc.) and cutting tools, comprising an -Al2 O3 matrix of sub-micron crystallite size made by sol-gel processing with a disper... | 03/16/1993 |
| 5181938 | Cobalt-bound diamond tools, a process for their manufacture and their use Cobalt-bound diamond tool (e.g. for cutting, drilling polishing) composite materials comprising diamond particles in uniform matrix of cobalt-boron alloy with 1-5 weight percent and uniform, stable and controllable matrix hardness of about 200 to 650 HB | 01/26/1993 |
| 5181678 | Flexible tailored elastic airfoil section A flexible airfoil section for a wing or a blade comprising a streamlined shape and an elastic structure whose stiffness distribution along its chord and span is tailored to provide a desirable cambered shape with proportional increases in camber with inc... | 01/26/1993 |
| 5152780 | Micro-instrument An endoscopic surgical tool (10) with an inner tip (22) and outer tip (12) pivotably interacting via an integral pivot (20) extension of the outer tip and an engaging groove (24) of the inner tip, articulated by a link (26) with an integral stud (30).... | 10/06/1992 |
| 5141821 | High temperature MCrAl(Y) composite material containing carbide particle inclusions MCrAlY composite material with platinum and/or rhodium alloying elements as 5-15 wt. % thereof and containing included particles of carbides vanadium, niobium, tantalum, titanium, zirconium, hafnium, chromium, molybdenum and/or tungsten and/or mixtures th... | 08/25/1992 |
| 5061134 | Divided bolt fastening device A fastener comprised of longitudinally divided bolt pieces (1,2,3) inserted into the hole, with trailing tips of the bolt pieces connected to a string (5), which is pulled out of a hole into which the bolt pieces are inserted so that the divided bolt piec... | 10/29/1991 |
| 5050898 | Mobile platform for a snow plow A mobile platform for attaching and detaching a snow plow to vehicles and providing mobile storage and displaying of such plows. This device also provides an off the ground service platform for plows. The mobile platform has a frame shaped to hold the bot... | 09/24/1991 |
| 5005869 | Device to display cover and pages of a document The present application discloses a book form picture or document holder. It consists of a pair of binder covers the front of which is a picture frame and the back a rigid flat which includes support and artwork. A length of thread that is nearly invisibl... | 04/09/1991 |
