Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 4184472 | Method and apparatus for slicing crystals A crystal is sliced in a plane parallel to flat, opposed parallel end faces of the crystal. The end faces of the crystal are gripped by a pair of opposed, perforated platens of a pair of vacuum chambers, one of which is translatable relative to the other.... | 01/22/1980 |
| 4184292 | Vacuum chuck A vacuum chuck for use in lens grinding having a vertical bore extending downwardly into the block to join a through horizontal bore provided with a venturi, so that by blowing air through the venturi a vacuum is created in the vertical bore to secure the... | 01/22/1980 |
| 4183545 | Rotary vacuum-chuck using no rotary union A vacuum-chuck having no expensive, complex rotary unions in the vacuum lines maintains its vacuum by maintaining the surfaces which rotate with respect to each other in intimate contact with a glabrous, self-lubricating element. The vacuum is communicate... | 01/15/1980 |
| 4173848 | Polishing device A device for polishing plano-convex lenses, quartz oscillators and the like comprises a lapping dish having a concave spherical surface and mounted for oscillating and rotary movement. The material to be polished is held by a suction rotary chuck which ap... | 11/13/1979 |
| 4164099 | Contact lens tool A contact lens holder or tool for grinding or polishing, including a handle, a tubular receptacle open at its outer end and having a shaft protruding from its inner end which is rotatably mounted in the handle, a deformable fluid chamber closely fitted in... | 08/14/1979 |
| 4066039 | Adjustable securing base An adjustable securing base has a surface radius of curvature which can be adjusted to support an adjacent part on the base surface. The securing base comprises a flexible thin plate with an adjustment mechanism connected on opposite edges of the base for... | 01/03/1978 |
| 4060938 | Glass beveling machine The glass beveling machine has a table for supporting a piece of glass to be beveled, and glass bevel grinding and polishing means in the form of wheels which may have individual driving heads mounted for adjustment relative to the table for selective ang... | 12/06/1977 |
| 4034517 | Workpiece finishing machine This invention relates to surface finishing machines and more particularly to a bench size machine featuring a multiple workpiece positioning holder adapted to be removably supported on a vacuum, hold down assembly, which is in turn mounted for multiple d... | 07/12/1977 |
| 4009540 | Method of working flat articles An article, for example a semiconductor wafer, is temporarily secured to a support without using a cement so that a treatment such as polishing may be carried out. The support has at least one recess and the article is positioned on the recess. The suppor... | 03/01/1977 |
| 3994101 | Vacuum chuck with sealable cavity Disclosed is a system for blocking an ophthalmic lens blank by means of a vacuum. The lens blank rests on the chuck and forms an air pocket or cavity therebetween which is evacuated by means of a vacuum pump. After evacuation, an elastic plug is inserted ... | 11/30/1976 |
| 3978620 | Apparatus for working the marginal zones of a lens A lens of a soft and readily damaged material is placed onto a support having a surface whose contour corresponds to the mating contour of the juxtaposed surface of the lens. The support is rotated and the lens is shifted on it until the lens is centered ... | 09/07/1976 |
| 3971170 | Vaccum chuck with sealable cavity Disclosed is a system for blocking an ophthalmic lens blank by means of a vacuum. The lens blank rests on the chuck and forms an air pocket or cavity therebetween which is evacuated by means of a vacuum pump. After evacuation, an elastic plug is inserted ... | 07/27/1976 |
| 3953013 | Method and apparatus for clamping a workpiece in a quasi-liquid medium A quasi-liquid vise is provided for clamping irregularly shaped workpieces which comprises an open-topped vessel into which a workpiece may be inserted, a particulate fluidizable material located within and, substantially filling said vessel, pressure mea... | 04/27/1976 |
