Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7182600 | Method and system for teaching vocabulary A method using a spatial-temporal software game for both teaching math concepts to a child and for scoring the child's proficiency in these math concepts. These scores are compared with the child's performance on a language-based test of the math concepts. If the ch... | 02/27/2007 |
| 7153140 | Training system and method for improving user knowledge and skills A method for creating training systems including analyzing/mapping course requirements for evaluating required knowledge/skills according to mapped subjects and defining possible failure causes, wherein each failure cause represents knowledge/skill weakness relating... | 12/26/2006 |
| 7139459 | Spectral filter for green and longer wavelengths Visible and infra-red spectral filters based on arrays of uncoupled identical waveguides having coherently modulated cross sections offer many unique advantages, such as independence of the spectral position of the Bragg-resonance based transmission or reflection fe... | 11/21/2006 |
| 6968152 | Computer-aided method of transmitting teaching materials The invention relates to a method of transmitting teaching materials by means of an electronic data network, wherein a person to be taught is first shown the teaching material on a client computer system. After the teaching material has been displayed, the person to... | 11/22/2005 |
| 6961482 | System for archiving electronic images of test question responses A system and method for electronically archiving electronic images of responses received from a response provider in such a manner that reduces the amount of electronic resources required for said archival. ... | 11/01/2005 |
| 6572379 | Self instruction welding kit A welding kit to provide a welder with information and instructions concerning particular types of welds and the formation of such welds. The welding kit includes a welding instruction manual and several metal sheets that include a plurality of pre-cut me... | 06/03/2003 |
| 6359566 | Welding machines Resistance welding machines may include one or more temperature sensors that measure the temperatures of one or more heat generating elements within the welding machine, such as the welding transformer, the welding cable, the welding gun and/or the weldin... | 03/19/2002 |
| 6164972 | Educational doll An educational doll or action figure comprises the professional attire, tools and safety gear of a particular profession so as to give a child a hands-on learning experience regarding the requirements, responsibility and hazards involved in carrying out t... | 12/26/2000 |
| 5823785 | Simulator for pipe welding A floor standing base supports a work holding manipulator table that is adapted to secure a vertical length of pipe for welding at a prepared juncture in the mounted pipe. The manipulator table is attached to the stand by a gimbal arrangement that allows ... | 10/20/1998 |
| 5320538 | Interactive aircraft training system and method The system includes a computer (20), a detector (40) for detecting and tracking head orientation and head movement of an individual, a pair of tactile gloves (42, 44) which are donned by the individual (51) for detecting and transmitting to the computer (... | 06/14/1994 |
| 5180440 | Printed circuit thermocouple arrangements for personnel training and equipment evaluation purposes A thermocouple arrangement for developing, evaluating, monitoring and adjusting any process performed on or otherwise so as to thermally affect a printed circuit board assembly or other electronic assembly (including bare circuit board or boards in the ma... | 01/19/1993 |
| 4931018 | Device for training welders A device for training, evaluating and providing practice for welders and particularly welders and welder students that use MIG, TIG and welding devices that employ movable consumable welding rods. The device includes a video monitor having a cathode ray t... | 06/05/1990 |
| 4867685 | Audio visual instructional system A tool-workpiece instructional system is provided for simulating operation on a workpiece in the form of a welding site as shown on a display, by a student using a tool such as a welding torch simulator. The torch is a mock-up of as real torch, having moc... | 09/19/1989 |
| 4716273 | Electric-arc trainer for welders An arc trainer for welders comprises a welding electrode simulator, a welding object simulating unit, a welding power source whose outputs are connected to the electrode simulator and to the welding object simulation unit, a unit controlling the quality o... | 12/29/1987 |
| 4689021 | Spark trainer for welders A spark trainer for welders comprises a welding electrode simulator, an electric spark generator connected to the electrode simulator, a welding object simulation unit, a spark discharge being produced between said welding object simulation unit and the t... | 08/25/1987 |
| 4680014 | Welder's trainer The welder's trainer comprises an welding electrode simulator, an electric-arc welding heat balance electronic model, a welding situation visual synthesis electronic model, a welding situation simulator made in the form of a television-type display, to wh... | 07/14/1987 |
| 4595368 | Instructional apparatus for underwater welding Disclosed herein is an instructional apparatus for underwater electric welding. The workpiece to be welded is clampable to a submergible bench mounted in a water tank on a power adjustable bench controllable by the trainee's feet while his hands are locat... | 06/17/1986 |
| 4452589 | Arc welding simulator An arc welding simulator for instructional use includes a handpiece that supports a retractably mounted heat tube. The handpiece and heat tube are sized and shaped to resemble an actual electric arc welding apparatus, including an electrode. The simulator... | 06/05/1984 |
| 4224744 | Circuitry for teaching soldering and practice circuit board for use therewith Apparatus including a planar support having a plurality of terminations such as plated through holes arranged therein in an array and a plurality of sensing devices respectively associated with the terminations for measuring a physical quantity thereat su... | 09/30/1980 |
| 4132014 | Welding simulator spot designator system A source of light is located within the movable target of the welding simulator. The electrode holder mounts a welding rod with a reflective surface. Light from the light source is reflected by the reflective surface onto a spot designator surface. The sp... | 01/02/1979 |
| 4124944 | Device for teaching and evaluating a person's skill as a welder An apparatus for simulating an arc welding operation, for training welders and for evaluating a welder's performance including a target representing a simulated weld to be made, mechanism for imparting predetermined motion to the target, a simulated weldi... | 11/14/1978 |
| 4041615 | Small-motion test device A small-motion test device especially useful as a welding aptitude test and primary training device comprises a target movable along a linear track, and switch means for defining a multi-dimensional envelope of freedom of movement of said target. A wand h... | 08/16/1977 |
