Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 6211485 | Blind via laser drilling system A laser drilling system for producing blind vias (13) in multilayered circuit boards (9) includes an RF excited sealed carbon dioxide laser oscillator (19), X-Y motion table for moving the boards during on-the-fly via formation, and a controller. A laser ... | 04/03/2001 |
| 6211488 | Method and apparatus for separating non-metallic substrates utilizing a laser initiated scribe An apparatus and method for physically separating non-metallic substrates forms a microcrack in the substrate and controllingly propagates the microcrack. An initial mechanical or pulsed laser scribing device forms a microcrack in the substrate. If a puls... | 04/03/2001 |
| 6207925 | Apparatus for cutting and/or welding flexible packaging This invention involves a method and apparatus for welding and/or cutting flexible packaging material (1) using lasers. The invention is specifically directed towards the use of lasers for cutting and/or welding plastics material (1) in motion, such as in... | 03/27/2001 |
| 6204473 | Laser-equipped machine tool cutting head with pressurized counterbalance A cutting head for a laser-equipped machine tool in which the cutting head has a controllably positionable optic carrier for adjusting the position of the beam focus. The focusing optic has a reaction force imposed on it by the assist gas coupled to the c... | 03/20/2001 |
| 6204472 | Method and device for cutting hollow glass articles by a laser beam A method and device for cutting hollow glass articles (1) by laser, comprising a first stage in which an incision is made along the circumferential cutting line in the articles, which are rotating about their axis. The article is rotated about its axis. T... | 03/20/2001 |
| 6191382 | Dynamic laser cutting apparatus This invention relates to a dynamic laser cutting apparatus for cutting successively various configurations on a moving feed stock or other moving web or successive sheets. The apparatus includes a control device, which monitors the relative location of t... | 02/20/2001 |
| 6188040 | Method for making an object made of translucent synthetic material, in particular an ophthalmic lens, marked object and corresponding reader A translucent synthetic material article such as an ophthalmic lens comprises a plurality of well-shaped cells, some of which have at least one upstanding projection on their bottom walls. The projection have a height between 1/5 and 1/1 the cell depth an... | 02/13/2001 |
| 6183064 | Method for singulating and attaching nozzle plates to printheads A method for making an inkjet printhead nozzle plate from a composite strip containing a nozzle layer and an adhesive layer is disclosed. The adhesive layer is coated with a polymeric sacrificial layer prior to laser ablating the flow features in the comp... | 02/06/2001 |
| 6172820 | Laser irradiation device A laser irradiation device generates a linear laser beam extending in one direction, which is irradiated toward the substrate 20 to be processed. The length Lh of the emitted linear laser beam in the major axis direction is adjusted in accordance with a s... | 01/09/2001 |
| 6169631 | Laser-texturing data zone on a magnetic disk surface by using degenerative two wave mixing A laser-optical wave mixing technique is provided for forming a high density textured data zone in an efficient and accurate manner. A single coherent laser beam of wavelength λ is split into two beams with roughly the same intensity. These two beams are... | 01/02/2001 |
| 6163010 | Method and apparatus for laser cutting materials Laser cutting of workpieces according to prior art results in heat affected zones (HAZ) of signiftcant thickness at the cut surface, which show seriously disturbed texture and/or microcracks. The HAZ is diminished by using a laser system with high beam qu... | 12/19/2000 |
| 6150630 | Laser machining of explosives The invention consists of a method for machining (cutting, drilling, sculpting) of explosives (e.g., TNT, TATB, PETN, RDX, etc.). By using pulses of a duration in the range of 5 femtoseconds to 50 picoseconds, extremely precise and rapid machining can be ... | 11/21/2000 |
| 6147321 | Configuration for the automatic inscription or reinscription of wafers A configuration for the automatic inscription or reinscription of wafers provides the wafers with a marking for identification and for process management during the production of semiconductor components. The wafer must be moved between different stations... | 11/14/2000 |
| 6144009 | Combination punch press and laser machine A combination punch press and laser machine has its punch press system and worktable mounted to one frame while its laser system mounted to another frame. The two frames are not in contact with each other, but are positioned such that a cantilever member ... | 11/07/2000 |
| 6140603 | Micro-cleavage method for specimen preparation A micro-cleavage method for preparing a semiconductor specimen for examination by an optical or electron microscopic is disclosed. The method can be carried out by hand and thus no expensive equipment such as a polishing machine is necessary. In the metho... | 10/31/2000 |
| 6136141 | Method and apparatus for the fabrication of lightweight semiconductor devices Lightweight semiconductor devices are fabricated upon a relatively thin substrate member by a process wherein the substrate is first bonded to a relatively thick support member. The semiconductor device is then formed on the bonded substrate, and the subs... | 10/24/2000 |
| 6128546 | Method and apparatus for a cutting system for avoiding pre-cut features An improved laser cutting apparatus is provided that optimizes the amount of time required to perform all of the required cuts in a piece of sheet material. The optimization minimizes the amount of rapid-travel movement of the laser head, and virtually el... | 10/03/2000 |
| 6127648 | Laser-equipped machine tool having a retractable scrap removal system A scrap removal system for a laser-equipped machine tool. The scrap removal system has a home position in which all of its components, including a scraper assembly and a drive are out of the range of the laser beam, so that they are protected from laser d... | 10/03/2000 |
| 6124565 | Laser cutting machine A laser cutting machine includes a driving apparatus for moving a laser head axially. An inner sleeve having a converging lens is coupled to the laser head. An outer sleeve having a nozzle is supported to move relative to the inner sleeve. A braking mecha... | 09/26/2000 |
| 6118096 | Laser marking of phosphorescent plastic articles The invention provides molded, extruded or formed phosphorescent plastic articles having laser marked indicia and methods for preparing the articles. The indicia may be seen as a contrast against a phosphorescent background or, alternatively, the indicia ... | 09/12/2000 |
| 6106878 | Method for separating sausages In a method for separating sausages which are joined together by means of a twisting point at which a clip may be situated, the twisting point is to be cut through by a laser beam.... | 08/22/2000 |
| 6107598 | Maskant for use during laser welding or drilling A maskant is provided for use during laser welding or drilling comprising a paste of metallic powder and silica.... | 08/22/2000 |
| 6103989 | System and method for forming discrete laser-etched labels from continuous label stock A system for forming discrete etched adhesive labels from continuous label stock comprises a de-laminator, a laser etching module, a re-laminator and a cutting module. The de-laminator separates and displaces the release liner from the face stock. The las... | 08/15/2000 |
| 6087624 | Programmable fiber chopper and method therefor This apparatus uses a programmable controller to control laser beam and standard fiber chopper units. The units usually are affixed to resin mix heads. The conventional choppers use steel blades that are randomly spaced, angled and sized. The PC also vari... | 07/11/2000 |
| 6087618 | X-ray imaging array detector and laser micro-milling method for fabricating array An x-ray focal plane array (XFPA) detector is fabricated by a laser micro-milling method under strict process control conditions. The detector has an array of phosphor pixels bonded together with a light reflective adhesive filling the grooves between adj... | 07/11/2000 |
| 6087625 | Laser machining apparatus A pulsed laser beam from a laser oscillator 10 is split into two by a beam splitter 13. The split laser beams are radiated by X-Y scanners 14 and 16 through working lenses 17 and 18 onto a work 20. Additionally on the work, the laser beams are swung in X-... | 07/11/2000 |
| 6084204 | Leadframe manufacturing apparatus using laser beams A leadframe manufacturing apparatus includes a laser beam generator, a laser beam path tube through which laser beams travel, a leadframe transferring unit which transfers leadframe material to be irradiated by the laser beams, a controller connected to t... | 07/04/2000 |
| 6080957 | Micromechanical tool A micromechanical tool includes at least one functional module. The functional module has a housing which is constructed as a layer package consisting of structured, flat material elements forming several layers of the layer package. In one embodiment the... | 06/27/2000 |
| 6075221 | Mechanism and method of making anti-slip handles The method and mechanism of making an anti-slip handle having a gripping portion in which a plurality of grooves are formed in the gripping portion of the handle with the first set of grooves formed in one direction and the second set of grooves formed in... | 06/13/2000 |
| 6064032 | Apparatus in a filter tipping machine for manipulating a web A running web of tipping paper (one side of which is coated with a film of adhesive) in a filter cigarette making machine is subdivided into discrete uniting bands and/or is perforated by resorting to a single source or to two discrete sources of coherent... | 05/16/2000 |
| 6064033 | Operative head for a laser machine An operative head for a laser machine including a base rotatably mounted about a first axis and carrying a first mirror for receiving a laser beam along the first axis and for deflecting the laser beam along a second axis orthogonal to the first axis, a r... | 05/16/2000 |
| 6060687 | Method of laser cutting metal workpieces The invention concerns a method for laser cutting metal workpieces which contain bound oxygen by using a mixture of ay least one inert gas and hydrogen as the cutting gas. The hydrogen protein of the cutting gas prevents oxygen which is from the metal dur... | 05/09/2000 |
| 6054671 | Methods of making a chain saw guide bar with high wear resistance strips To increase the wear resistance of the nose of a chain saw guide bar, a U-shaped strip of wear-resistant alloy is welded to the edge surface of each side rail of the guide bar at the nose. Each strip has a greater width at the crest of the strip than at t... | 04/25/2000 |
| 6046428 | Laser cutting device with parallel-plate cutting table Laser cutting device comprising a movable cutting head, cutting table for supporting a workpiece to be cut, a movable loading and unloading carriage for the placing of the workpiece on the cutting table and again removing it here from, as well as a produc... | 04/04/2000 |
| 6046427 | Process and device to cut, perforate or inscribe repeating patterns in continuously-moving flat material The invention concerns a process to cut, perforate, or inscribe repeating patterns in continuously-moving flat material by locally vaporizing the flat material with at least one controllable laser beam from at least one beam deflection system whereby each... | 04/04/2000 |
| 6043453 | Apparatus for laser processing with a mechanical cutter The apparatus is for spot-facing for exposing an inner-layer conductor embedded in an insulator of a printed circuit board. The spot-facing removes the entire insulator by a mechanical cutter, except a remaining part thereof, to a position just above the ... | 03/28/2000 |
| 6040546 | Method and apparatus for cutting a tendon used in a post-tension anchor system An apparatus for attachment to a cutting torch used for the severing of a tendon in a post-tension anchor system. The apparatus includes a first shield having an opening formed therein and adapted to allow the tendon to pass therethrough, a tubular extens... | 03/21/2000 |
| 6031200 | In-process kerf measurement system A direct in-process measurement of the bottom kerf width uses a hardware, vision, and software system which captures a direct image of this kerf, computes its average width over a prescribed length and presents the data for visual observation, automatic c... | 02/29/2000 |
| 6025571 | Nozzle assembly for laser cutting head A nozzle assembly, for laser cutting heads, which includes a connection which easily, inexpensively, and removably connects a conductive insert to an insulating receptacle. A conductive nozzle can then be threaded into the conductive insert. The insulatin... | 02/15/2000 |
| 6020573 | Laser beam machining apparatus A laser beam machining apparatus capable of eliminating a complicated unit arranged to vertically move pallets and adapted to a pallet storage unit for making the heights of upper and lower pallets to be constant so as to simplify the structure thereof an... | 02/01/2000 |
