Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 4983467 | Compacting of a metal web product made A method of compacting a non-woven sintered metal web (1), characterized in that said non woven metal web (1) as such is isostatically pressed, preferably cold isostatically pressed. The isostatically pressed metal web may be used in filter applications a... | 01/08/1991 |
| 4961161 | Arithmetic processor performing mask and trap operations for exceptions A floating-point arithmetic processor performs a MASK or TRAP operation in response to occurrence of an exception. This processor includes a first flag which is set when the exception occurs, a second flag storing first data designating the MASK operation... | 10/02/1990 |
| 4912519 | Laser speckle velocity-measuring apparatus There is provided a laser speckle velocity-measuring apparatus comprising: a semiconductor laser to irradiate the light to a moving object; first and second photo sensing devices whose light receiving points are arranged in the moving direction of the obj... | 03/27/1990 |
| 4841567 | Memory device The memory device memorizes a number corresponding to a plurality of digits, for example, a unit phone number using a first memory array. A desired number is obtained by selecting a Y address. A readout operation is executed by inputting whole data select... | 06/20/1989 |
| 4836808 | Captive nut terminal for electronic module power connectors The invention relates to a captive nut terminal for an electronic module power connector (4,4'), of the type comprising a lug (4b) projecting above the resin embedding the circuits of the module, bent at right angles above the upper face of the module and... | 06/06/1989 |
| 4829238 | Method and apparatus for monitoring electromagnetic emission levels Electromagnetic emission from a printed circuit board is monitored by energizing the board while it is located adjacent an array of electromagnetic emission measuring probes. The probes are successively addressed and currents induced in the probes are mea... | 05/09/1989 |
| 4819579 | Coating of semiconductor wafers and apparatus therefor In the production of coatings on semiconductor wafers, fragile equipment is used and also difficulties in obtaining uniform coatings arise. The invention provides a form of boat for holding wafers and a manifold structure for feeding gases to the boats, a... | 04/11/1989 |
| 4797835 | Model follower control apparatus An apparatus for model follower control of a robot. The apparatus comprises a source for generating target position data representing a target position for the robot, and an operation pattern generator responsive to the target position data for calculatin... | 01/10/1989 |
| 4794316 | Induction machine system An induction system of the invention is adapted to apply coordinate transformation to the excitation current reference vector corresponding to the primary interlinkage magnetic flux vector reference value and the primary current vector so that they exist ... | 12/27/1988 |
