Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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 |
| 7003864 | Method for producing a part and device for carrying out this method The present invention relates to a method for producing a part (108, 200, 300), comprising the following steps: a) applying a first flat layer consisting of a support material (102, 202, 302), to a construction platfo... | 02/28/2006 |
| 6919574 | Electron beam exposure apparatus, deflection apparatus, and electron beam exposure method An electron beam exposure apparatus for exposing a wafer by an electron beam incorporates a circuit structure for conducting a scan test to self-diagnose the electrical connections. The electron beam exposure apparatus includes: an electron beam generating section f... | 07/19/2005 |
| 5773784 | Electron beam processing apparatus An electron beam processing apparatus imparted with capability of preventing occurrence of a failure in welding or the like processing of a workpiece by automatically compensating for changes in a focused position of an electron beam ascribable to time-de... | 06/30/1998 |
| 5686785 | Electron gun having electrically isolated and adjustable cathode An electron gun for producing a beam of electrons has an elongated, linear thermionic cathode and a focusing electrode. The opposite ends of the cathode are engaged by adjustable holders which enable the spatial separation between the cathode and focusing... | 11/11/1997 |
| 5483036 | Method of automatic measurement and focus of an electron beam and apparatus therefor An electron beam focusing system, including a plural slit-type Faraday beam trap, for measuring the diameter of an electron beam and automatically focusing the beam for welding. Beam size is determined from profiles of the current measured as the beam is ... | 01/09/1996 |
| 5459297 | Method and apparatus for manufacturing a texture drum In the implementation of the method for after-treatment of a texture drum wherein a surface structure is generated in the region of a surface with an electron beam, the texture drum, following a charging occurring within a working interval with an electro... | 10/17/1995 |
| 5459296 | Method for the low-maintenance operation of an apparatus for producing a surface structure, and apparatus An apparatus for producing surface structures on a drum with an electron beam, comprising beam equipment having a beam generator that generates the electron beam, a focal length adjustment as well as a focusing adjustment, and a vacuum chamber which accep... | 10/17/1995 |
| 5216690 | Electron beam gun with grounded shield to prevent arc down A grounded metallic shield which comprises an electrode enclosing the filament leads and emitters of an e-Gun in a high vacuum chamber of the type used in melting and casting metals and other materials and evaporation sources. The shield is spaced from th... | 06/01/1993 |
| 5173582 | Charged particle beam lithography system and method A charged particle beam lithography system includes a beam source of a charged particle beam, a beam shaping aperture for providing a predetermined cross section to the charged particle beam, a first focusing system for focusing the charged particle beam ... | 12/22/1992 |
| 5086015 | Method of etching a semiconductor device by an ion beam A method of etching a semiconductor device having multi-layered wiring by an ion beam is disclosed which method comprises the steps of: extracting a high-intensity ion beam from a high-density ion source; focusing the extracted ion beam; causing the focus... | 02/04/1992 |
| 4974736 | Multi-electron-beam pattern drawing apparatus A multi-electron-beam pattern drawing apparatus having a plurality of electron beam sources and a plurality of electron beam sensors, provided on a common base member, is disclosed. The electron beam sources can be selectively driven for different uses, s... | 12/04/1990 |
| 4718928 | Quick access contact mounting fixture A fixture is provided which enables the rapid mounting of an optical fiber contact with its forward end at a predetermined position and orientation with respect to arc-creating electrodes. The fixture includes a frame with a vertical slot having a width g... | 01/12/1988 |
| 4683366 | All electrostatic electron optical sub-system for variable electron beam spot shaping and method of operation An all-electrostatic variable spot charged particle (electron) beam shaping sub-system which is compact and of much smaller size than known similar systems designed for the same purpose and operating with magnetic lenses. The improved electrostatic variab... | 07/28/1987 |
| 4654506 | Method and apparatus for detecting and regulating position of welding electron beam A method and apparatus for detecting and regulating a focused condition of an electron beam emitted from an electron gun of an electron beam welding apparatus. An electron beam of a low intensity is first directed onto the workpiece. The coil current of a... | 03/31/1987 |
| 4638142 | Machine for electron-beam internal butt welding of tubes A machine for the internal butt welding of two tubes comprises a fixed axial electron gun, a rotary prism system for radially deflecting the electron beam and comprising a plurality of prisms and a deflection system for cyclically delivering the electron ... | 01/20/1987 |
| 4622453 | Electron beam gun mounting on a work chamber An electron beam gun comprising a beam generator (4), an acceleration chamber (7) and a beam-guide chamber (10). The beam-guide chamber is formed by a jacket tube (19) and a beam-guide tube (18), which extends to the work chamber (1) and is surrounded by ... | 11/11/1986 |
| 4611330 | Electron beam vaporizer An electron beam vaporizer with an electron beam generator (1), a first magnetic deflector system (7) with parallel elongate pole plates (8) for linear beam deflection along a first coordinate, and with a second magnetic deflector system (10) for beam def... | 09/09/1986 |
| 4574179 | Ion beam machining device The disclosed ion beam machining device has a plasma-generating chamber, a machining chamber, and an ion-extracting grid disposed between the two chambers, which grid has an insulator layer facing the plasma-generating chamber and a conductor layer facing... | 03/04/1986 |
| 4471205 | Electron beam engraving method and device for execution In printing form production with electron beams, the imaging scale of the electron source on the source of the printing form is modulated gradation-dependent for engraving different cup geometries. The power density distribution in the effective point of ... | 09/11/1984 |
| 4468565 | Automatic focus and deflection correction in E-beam system using optical target height measurements An automatic focus correction system for E-beam lithography uses optical light from a narrow angle light source to illuminate a horizontal slit, the image of which is projected onto a target surface. Prior to and after reflection of the slit image from th... | 08/28/1984 |
| 4448802 | Method and apparatus for evaporating material under vacuum using both an arc discharge and electron beam A method of evaporating an evaporative substance under vacuum comprises bombarding the evaporative substance with electrons from a low voltage arc discharge established between a cathode and an anode which is located in an evaporation chamber and simultan... | 05/15/1984 |
| 4393295 | Apparatus and method for engraving with an electron beam Apparatus and method for engraving with an electron beam such that depressions of different sizes can be generated in the surface of a workpiece and the different sizes of depressions are produced by an electron beam and wherein during periods when depres... | 07/12/1983 |
| 4371774 | High power linear pulsed beam annealer A high power pulsed electron beam is produced in a system comprised of an electron gun having a heated cathode, control grid, focus ring, and a curved drift tube. The drift tube is maintained at a high positive voltage with respect to the cathode to accel... | 02/01/1983 |
| 4357517 | Electron beam welding with beam focus controlled responsive to absorbed beam power In a process for electron beam welding, the electron beam welding gun is controlled to maintain the power absorbed by the pieces being welded substantially constant. In a preferred embodiment the intensity of the electron beam transmitted by the pieces be... | 11/02/1982 |
| 4327273 | Method of treating a workpiece with electron beams and apparatus therefor A vacuum chamber for welding in which to place a workpiece is hermetically connected to a vacuum chamber for an electron beam gun in which to place an electron beam gun, and the former is kept at a vacuum of 1×10-4 Torr while the latter, at a ... | 04/27/1982 |
| 4160150 | Method and apparatus for energy beam welding In welding a workpiece of considerable thickness with an energy beam, as an electron beam, focussed into a focal point on a beam axis, the tendency of molten material flowing out of the welding zone is eliminated or at least considerably reduced by contin... | 07/03/1979 |
| 4158122 | Method of measuring and stabilizing the diameter of heating point on workpiece in electron beam welding machine and on automatic device for realization thereof In the course of welding an electron welding beam is regularly deflected by means of linearly growing pulses to an electrons pickup arranged as a Faraday beam trap. As the electron beam travels in the course of deflection, it crosses the slit in the Farad... | 06/12/1979 |
| 4145597 | Electron beam lithographic system An electron beam lithographic system which exposes a desired area of an electron beam resist so as to form a desired pattern to be used for manufacturing large scale integrated circuits. This electron beam lithographic system provides a first and a second... | 03/20/1979 |
| 4105890 | Device for electron-beam heating of materials A device for electron-beam heating of materials comprises an electron gun and an electromagnetic electron beam control system with a rectangular magnetic circuit. The opposite rods of the magnetic circuit accommodate beam deflection windings as well as be... | 08/08/1978 |
| 4066863 | Method and system for automatically correcting aberrations of a beam of charged particles The location of a beam of charged particles within a deflection field is determined by its orthogonal deflection voltages. With the location of the beam in the field, correction currents are supplied to a focus coil and to each of a pair of stigmator coil... | 01/03/1978 |
| 4050507 | Method for customizing nucleate boiling heat transfer from electronic units immersed in dielectric coolant A method is provided for customizing the heat transfer from the walls of an electronic unit such as a semi-conductor chip or wafer by determining the required heat transfer characteristics of the units; drilling holes of a predetermined size and location ... | 09/27/1977 |
| 4020317 | Method of mining rock with an electron beam A method of mining rock utilizes a high-intensity electron beam to break the rock. The electron beam is directed onto the surface of the rock, and has sufficient energy either to ablate the rock at the zone of beam impingement and generate an ablation pre... | 04/26/1977 |
| 4000423 | Fast response high temperature evaporation control An electron beam vapor source for use in laser enrichment of uranium and providing fast response intermittent vaporization to permit interruption of the enrichment process without wasting vapor or requiring long term reheating.... | 12/28/1976 |
| 3961103 | Film deposition A method and apparatus for depositing a thin film of material upon a base substrate including a glow discharge ion source for generating the particular ions that will be subsequently deposited upon the base substrate, a vacuum deposition chamber wherein t... | 06/01/1976 |
| 3956635 | Combined multiple beam size and spiral scan method for electron beam writing of microcircuit patterns A method for electron beam writing of microcircuit patterns utilizing the combination of spiral scan techniques and variable beam sizes. The circuit patterns are outlined in a spiral scan motion using a small size beam in order to ensure good edge sharpne... | 05/11/1976 |
