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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 4896647 | Cutting tool system for cutting stone and method of cutting same A cutting system for cutting heavy stone slabs wherein the heavy slabs are supported in a fixed horizontal position by means of a plurality of apertures which are adapted to receive a plurality of rollers, the rollers extending in an upward direction adap... | 01/30/1990 |
| 4854081 | Device for treating printed circuit boards, in particular for pumicing and trimming The proposed device comprises a treatment unit (30) substantially made up of a feed guide (6) for the board and one or more rotating brushes (5) having their axes of rotation perpendicular to the board; this unit is followed by a flip-over assembly (31) a... | 08/08/1989 |
| 4699564 | Stone turning apparatus with swing transfer Spaced parallel circular tracks rotate 180 degrees on roller bearings. Matching openings through one edge of each track serve to admit a stone or heavy object into a receiving slot. Parallel roller conveyors line the top and bottom faces of the slot. A pi... | 10/13/1987 |
| 4660539 | Method and apparatus for cutting and polishing marble slabs A machine is provided which automatically cuts and polishes disks of marble and finishes the edges of those disks. A marble cutting saw blade and a marble polishing wheel are disposed on a track located in spaced separation from a turntable. The turntable... | 04/28/1987 |
| 4521995 | Wafer attracting and fixing device A work head for attracting and fixing an IC silicon wafer is comprised of an attracting disc and a base seat surrounding the periphery of the attracting disk. The attracting disc is of an inorganic substance shaped and sintered so that the upper layer of ... | 06/11/1985 |
| 4445494 | Apparatus for supporting crystalline wafers A process and apparatus for supporting crystalline wafers utilizing the sion effect of flowing gas on the crystalline wafers. An almost point-like support of the crystalline wafer is achieved. Furthermore, the invention relates to a holding tool for carr... | 05/01/1984 |
| 4444492 | Apparatus for projecting a series of images onto dies of a semiconductor wafer The apparatus forms one-to-one reticle images on a wafer. The apparatus includes means for holding a reticle containing an image pattern corresponding to the size of the desired wafer pattern. An illumination system substantially uniformly illuminates the... | 04/24/1984 |
| 4407262 | Wafer dicing apparatus Installation for the sawing of wafers of semiconductor material encompassing an alignment station (1), a sawing station (9), and a cleaning station (7). A handling device, provided to convey the wafers from one station to another, while ensuring a perfect... | 10/04/1983 |
| 4346691 | Slab-gripping apparatus Apparatus for gripping slabs of stone and supporting the slab on its edge while it is cut into two planar laminae, comprises grippers in the form of oppositely arranged vacuum-operated suction cups which grip opposite faces of the slab to prevent relative... | 08/31/1982 |
| 4328553 | Method and apparatus for targetless wafer alignment A method and apparatus for targetless X, Y and θ alignment of a semiconductor wafer having thereon a large number of identical microcircuits or dies that are arranged in a pattern to form rows and columns separated by scribe lines or "streets." The orien... | 05/04/1982 |
| 4315494 | Masonary saw jig The present invention relates to a mitre guide jig adapted for use with a masonary saw. The jig comprises a body portion and an end portion to which the body portion is adjustably secured. The body portion includes a single flat work piece receiving face ... | 02/16/1982 |
| 4111180 | Rock holding device A rock holding device, which can be mounted in a rock-saw vise in such a way that rocks gripped by this device are held firm and secure so they can be sliced by a lapidary (diamond-blade) saw. The device comprises a plate having slidably mounted thereon a... | 09/05/1978 |
| 4078539 | Rock gripper assembly A chuck assembly for gripping and holding objects including a base, a face plate rotatably mounted on the base, and a plurality of arms pivotally connected to and extending outwardly from the face plate for swinging toward and away from each other. A thre... | 03/14/1978 |
