Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8152603 | Slide holder for sample holder for grinder/polisher A slide holder for mounting to a sample holder having a pair of openings therein, for a grinder/polisher includes a plate for receiving the slide. The slide holder includes a pair of stems extending from the plate and configured and spaced for receipt in the sample ... | 04/10/2012 |
| 7338351 | Apparatus and method for sharpening tool blades A sharpening device for the blade of a tool such as a chisel or plane is in two parts. The first is a jig into which the blade is inserted with its tapered end projecting some distance beyond the jig. This distance is related to the angle to which the blade is to be... | 03/04/2008 |
| 7193714 | Lens blank alignment and blocking device and method A lens blocking device is disclosed that includes a frame, a light source mounted on the frame, a carriage having a first end and a second end mounted on the frame for sliding movement between first and second positions, a first mirror mounted on the carriage first ... | 03/20/2007 |
| 7189148 | Polishing apparatus A polishing apparatus includes a polishing jig. The polishing jig includes an elastic balloon member, a fixture, and a fluid supply portion. The fixture airtightly closes the rear opening portion of the balloon member. The fluid supply portion supplies a fluid into ... | 03/13/2007 |
| 7150672 | Cup attaching apparatus A cup attaching apparatus for attaching a cup, used during processing of an eye glass lens, to the lens, the apparatus includes: a placing portion onto which the lens is placed; a holding portion for detachably holding the cup; a supporting portion for supporting th... | 12/19/2006 |
| 7101920 | Water-soluble blocking wax formulation The invention provides, in a first embodiment, a blocking wax composition. The blocking wax comprises from about 50 to about 90 weight percent of a water-soluble continuous phase and from about 10 to about 50 weight percent of a discontinuous solid phase filler that... | 09/05/2006 |
| 7066797 | Block piece for holding an optical workpiece, in particular a spectacle lens, for machining thereof There is disclosed a block piece for holding an optical workpiece, in particular a spectacle lens, for machining thereof, which block piece comprises a basic body which has an end face, against which the workpiece can be blocked by means of a temporarily deformable ... | 06/27/2006 |
| 7059037 | Blocking apparatus providing an adjustable offset for precision alignment According to one aspect, the invention provides a blocking apparatus and a blocking method for precisely aligning a button holder against a block during blocking process of lens manufacturing. According to another aspect, the invention provides an adjustable offset ... | 06/13/2006 |
| 6979255 | Holder for optical fiber ferrule end face grinding apparatus A holder for an optical fiber ferrule end face grinding apparatus is provided which can grind an increased number of optical fiber ferrules simultaneously. The holder comprises a holder plate provided with a plurality of ferrule insertion holes, a seat extending to ... | 12/27/2005 |
| 6966818 | Direct clamp tooling for robotic applications A direct clamp robotic finishing system is provided including a robot, a gripper secured to the robot, and a pair of fingers secured to the gripper. A tray assembly is also provided for supporting a plurality of implants for picking up by the fingers. An implant reo... | 11/22/2005 |
| 6942746 | Lens blocking system A method of blocking ophthalmic lenses for edging comprises providing an ophthalmic lens having first and second surfaces, providing a first block for securing against the first lens surface and a second block for securing against the second lens surface. The method... | 09/13/2005 |
| 6869333 | Lens blank alignment and blocking device and method A lens blocking device is disclosed that includes a frame, a light source mounted on the frame, a carriage having a first end and a second end mounted on the frame for sliding movement between first and second positions, a first mirror mounted on the carriage first ... | 03/22/2005 |
| 6869347 | Fabrication of devices with fibers engaged to grooves on substrates Fabrication techniques for polishing fibers engaged in grooves on substrates. A protection template assembly is disclosed to protect the unpolished portions of fibers. Chemical mechanical polishing may be used to achieve high fabrication throughput and high polishin... | 03/22/2005 |
| 6855042 | Retaining device for a block or suction element Retaining device (1) for a block or suction element (10) in a centering device for spectacle lenses, having a support, which has a longitudinal axis (2), having a spherically dome-shaped bearing surface (3) on the support, having a spheri... | 02/15/2005 |
| 6855033 | Fixture for clamping a gas turbine component blank and its use in shaping the gas turbine component blank A gas turbine component blank is shaped by clamping the gas turbine component blank into a fixture that accurately positions the gas turbine component blank in three dimensions. The positioning is accomplished against stops accurately machined into a base of the fix... | 02/15/2005 |
| 6790131 | Field termination kit for fiber connector A polishing puck assembly is provided for use in polishing a fiber optic connector. A slidable weight rests on the fiber optic connector to urge the ferrule of the fiber optic connector to extend below a bottom surface of the puck assembly. The puck assembly can be ... | 09/14/2004 |
| 6786802 | Method for lathing a lens A method of lathing a lens, especially a contact lens, involves attaching the cylindrical blank of lens material to a first block of machineable plastic material, lathe cutting a desired first lens surface in the cylindrical blank, attaching the machined first lens ... | 09/07/2004 |
| 6764392 | Wafer polishing method and wafer polishing device A polishing method and polishing apparatus capable of improving the flatness of a wafer are provided. When a wafer is adhered to a wafer holding plate for polishing a surface to be polished of the wafer by pressing and rubbing the surface to be polished against a po... | 07/20/2004 |
| 6761624 | Chemical mechanical polishing apparatus A chemical mechanical polish apparatus comprises a platen having a polishing pad thereon, a wafer carrier holding a wafer on the polishing pad, and a pusher. The pusher has a base disk and at least two guiding structures at the rim of the base disk. Each guiding str... | 07/13/2004 |
| 6719608 | Fabrication of devices with fibers engaged to grooves on substrates Fabrication techniques for polishing fibers engaged in grooves on substrates. A protection template assembly is disclosed to protect the unpolished portions of fibers. Chemical mechanical polishing may be used to achieve high fabrication throughput and high polishin... | 04/13/2004 |
| 6702656 | Snow ski and snowboard edge sharpening device A device for sharpening ski edges and the like which is useful in sharpening both the side and bottom edges of skis is disclosed. The device is operable easily by an individual, is portable and allows a bevel to be sharpened into the edge where desired qu... | 03/09/2004 |
| 6585578 | Girinding wheel machine bracket adjustable in angle A grinding wheel machine bracket comprises a fixations eat having a long through hole to receive a screw for fastening the fixation seat with a grinding wheel machine. The fixation seat has a pivoting seat with an axial hole, and a pointer located at the ... | 07/01/2003 |
| 6479386 | Process for reducing surface variations for polished wafer A process for forming a semiconductor wafer which is single side polished improves nanotopology and flatness of the polished wafer. The process reduces the effect of back side surface features, such as edge ring phenomena and back side laser marks, on nan... | 11/12/2002 |
| 6386946 | Repair machine for compact disk A repair machine for compact disk is used for cleaning, maintaining, and repairing compact disks. The processing procedure is basically a mechanical method by: placing a scratched compact disk on a CD turntable of the repair machine, grinding it with a gr... | 05/14/2002 |
| 6315650 | Method for lathing a lens A method of lathing a lens, especially a contact lens, involves attaching the cylindrical blank of lens material to a first block of machineable plastic material, lathe cutting a desired first lens surface in the cylindrical blank, attaching the machined ... | 11/13/2001 |
| 6257971 | Apparatus for polishing end surface of optical fibers An apparatus for simultaneously or selectively grinding ends of a plurality of optical fibers held by optical fiber end devices such as connectors including ferrules. The apparatus has a holder plate having a plurality of types of supporting structures fo... | 07/10/2001 |
| 6210255 | Carrier head for chemical mechanical polishing a substrate A carrier head for a chemical mechanical polishing apparatus includes a flexible membrane with an expandable lip portion to engage a substrate for improved chemical mechanical polishing. The lip portion can form or break a seal with the substrate in respo... | 04/03/2001 |
| 6142853 | Method and apparatus for holding laser wafers during a fabrication process to minimize breakage A method and apparatus utilizing a thermal release mounting material to adhere a laser wafer to a wafer support during a semiconductor fabrication process is provided. A first surface of the mounting material contains an adhesive and is adhered to a wafer... | 11/07/2000 |
| 6126528 | Preformed ophthalmic lens base block with textured surface The present invention provides novel preformed base blocks that may be used with thermoplastic ophthalmic lens blocking compositions. The preformed base block has a rear portion that is sized and adapted to fit the chuck of a lens processing machine and a... | 10/03/2000 |
| 6110016 | Lens block and method of processing lenses A two-piece lens block allows for the rotation of an edged lens blank in order to align the cylinder of the lens blank correctly. The lens block includes a substantially cylindrical base having a first surface facing the lens blank and an opposed second s... | 08/29/2000 |
| 6039640 | Eccentric grinder loading system The apparatus accurately and automatically orients a shaft with an eccentric end portion for positioning in an eccentric chuck. An unoriented shaft is deposited on a support assembly. The shaft is supported by the eccentric and adjacent the end remote fro... | 03/21/2000 |
| 5970603 | Method for processing magnetic read/write heads A tool, and associated method, for batch processing the definition of air bearing surfaces on rows comprising a plurality of sliders is disclosed. The tool has a main body member having a length defining a y-axis direction, a width defining an x-axis dire... | 10/26/1999 |
| 5919080 | Ophthalmic lens blocker An ophthalmic lens blocker for blocking a lens blank onto a support block without touching the block. The lens blocker has a lens blank imaging station for displaying a target image of a prescribed lens and a planar coordinate system associated with this ... | 07/06/1999 |
| 5916017 | Preformed ophthalmic lens base block The present invention provides novel preformed base blocks that may be used with thermoplastic ophthalmic lens blocking compositions. The preformed base block has a rear portion that is sized and adapted to fit the chuck of a lens processing machine and a... | 06/29/1999 |
| 5906533 | Radiant polishing block heater A method for mounting a semiconductor wafer on a polishing block to hold the semiconductor wafer during polishing. The method comprises the steps of providing a polishing block having a surface for mounting the semiconductor wafer, coating the polishing b... | 05/25/1999 |
| 5839424 | Process for the orientation of several single crystals disposed side by side on a cutting support for their simultaneous cutting in a cutting machine and device for practicing this process The process and device (1) for positioning several single crystals (2) on a support (3) for their simultaneous cutting in directions well defined relative to the crystal structure of each single crystal; they avoid the adjustment in the machine and minimi... | 11/24/1998 |
| 5799644 | Semiconductor single crystal ingot cutting jig A semiconductor single crystal ingot cutting jig is shaped as a cylinder having a diameter approximately equal to an ingot diameter. A recess is provided at one end of the jig for receiving a head (or tail) of the ingot. An adhesive is provided in the rec... | 09/01/1998 |
| 5791035 | Method for making a sensor element A plurality of holes 2, each of which permits insertion of a small-diameter of an article to be manufactured, are formed in a flexible metal retaining plate 1 having a thickness of about 100 micrometers. A pair of notches 3, 3 are formed in the internal p... | 08/11/1998 |
| 5785580 | Compression sleeve opthalmic lens chuck An ophthalmic lens block and lens generating machine compression sleeve chuck are provided such that the block is of diameter suitable for the lens edging step of the lens generating process. The lens generating chuck consists of a plurality of concentric... | 07/28/1998 |
| 5782590 | Apparatus for contour shaping and finish beveling edges of eyewear lenses A portable, rotary power tool includes a guide roller and a special designed cutter mounted to the spindle of the tool. The rotary tool is presented to a lens blank mounted to a lens defining pattern. The guide roller engages and follows the shape definin... | 07/21/1998 |
