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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 4380694 | Laser cutting apparatus Laser cutting apparatus comprises a laser (20), means (24,25) for directing the output beam of the laser on to a workpiece (26), and means such as a quarter-wave plate (27) for producing circular polarization of the laser output beam. The laser may includ... | 04/19/1983 |
| 4358659 | Method and apparatus for focusing a laser beam on an integrated circuit A laser beam (38) is focused on the surface of a semiconductor substrate (10) by translating an objective lens (70) along the path of the laser beam (38). The substrate (10) is fabricated to have a region (12) of an opposite conductivity type and to have ... | 11/09/1982 |
| 4356376 | Pulse laser pretreated machining An improved laser-assisted machining process has special application to difficult-to-machine materials such as the titanium alloys and high temperature superalloys. A layer of material to be removed by a cutting tool is made weaker by drilling a series of... | 10/26/1982 |
| 4346284 | Dual path web transport and processing apparatus with radiant energy directing means An apparatus and method for processing a sequence of webs by exposure to radiant energy. The apparatus includes structure defining a pair of independent transport paths and apparatus for emitting radiant energy and selectively directing it into either of ... | 08/24/1982 |
| 4336439 | Method and apparatus for laser scribing and cutting A laser system adapted for a high power laser beam thermally reacting with a target of a rigid material to remove a portion of the rigid material, has a laser generating a high power beam of electromagnetic coherent radiation. The beam is aligned to impin... | 06/22/1982 |
| 4335296 | Machine tool with a laser beam cutting device A machine tool comprising at least one vertically reciprocating tool, such as a punch or the like, and a laser beam cutting device for cutting a workpiece thereunder positioned by a coordinate table movable in a plane in two directions normal to each othe... | 06/15/1982 |
| 4332999 | Method for machining a workpiece with a beam of radiant energy assisted by a chemically-reactive gas A method for machining a workpiece with a beam of radiant energy in the presence of a chemically-reactive gas characterized in that (a) the beam heats the area of incidence of the workpiece to a reaction temperature that is below the melting point of the ... | 06/01/1982 |
| 4328411 | Cutting amorphous metal by crystallization with a laser or electron beam A rapid method of cutting thin amorphous metal sheet material is to use a focused heat source such as a laser beam or electron beam to heat local regions of the material above the crystallization temperature and form brittle crystalline lines along which ... | 05/04/1982 |
| 4324972 | Process and device for laser-beam melting and flame cutting In a laser beam cutting device the focussing of the laser beam (1) and the adjustment of the focal spot (4) in respect of its vertical position is made swing free, and is achieved without subsequent correction of the workpiece coordinates, with the focuss... | 04/13/1982 |
| 4323757 | Method for cutting specific layer of synthetic resin laminated film A method for cutting a specific layer of a synthetic resin laminated film comprising at least two kinds of closely laminated synthetic resin material film layers having spectral absorption characteristics different from each other, which comprises placing... | 04/06/1982 |
| 4317021 | Laser cutting apparatus for nuclear core fuel subassembly The object of the invention is to provide a system and apparatus which employs laser cutting to disassemble a nuclear core fuel subassembly. The apparatus includes a gantry frame (C) which straddles the core fuel subassembly (14), an x-carriage (22) travelling... | 02/23/1982 |
| 4317023 | Method of making slotted well screen Plastic well screen has tapered, undercut slots formed by a laser beam focused through a lens having its focal point located at or slightly away from the surface of the plastic cylinder being slotted so that the laser beam diverges as it passes through th... | 02/23/1982 |
| 4288680 | Apparatus for cutting mould notches for strip steel cutting tools Apparatus for cutting notches in the outer surface of a cylindrical drum includes a machine frame, and a laser cutting set which provides a laser beam to cut the notches in the drum. The notches are provided to allow sheet steel strips to be later fitted ... | 09/08/1981 |
| 4273398 | Method and apparatus for manufacturing gas-filled tubes and the like A unique method and apparatus for manufacturing gas-filled tubes utilizes an optically-spread beam of light to seal and cut short segments of tubing from a long tube containing the gas. Neither the laser beam nor the tubing is moved during the cutting and... | 06/16/1981 |
| 4266547 | Laser knife A laser knife comprises a tubular member adapted to be inserted into the coeloma by passing through the forceps channel of an endoscope, a laser radiation emitter and acceptor disposed in opposing relationship with each other on the distal end of the tubu... | 05/12/1981 |
| 4258246 | Rotor balancing device utilizing a laser beam Disclosed is a device for automatically correcting dynamic-unbalance of a rotor. The device utilizes a laser beam which moves in synchronism with movement of a detected unbalanced position on the rotor to burn off portions of the rotor until a balanced co... | 03/24/1981 |
| 4240431 | Laser knife A laser knife includes a tubular member adapted to be inserted into the coeloma by being inserted into the forceps channel of an endoscope, a pair of oppositely located laser radiation emitter and acceptor members on the distal end of the tubular member, ... | 12/23/1980 |
| 4240127 | Metallized film capacitor and method of manufacture A rolled metallized film capacitor is manufactured by completely metallized one surface of each of a pair of dielectric films, and advancing the films while laser scribing patterns of demetallized lines on the respective films which are wound together to ... | 12/16/1980 |
| 4229865 | Machine for laser scribing and winding metallized film capacitor blanks A pair of very thin dielectric films, each completely metallized on one side, are positively advanced over a pair of drums of a machine while the films are laser scribed and slit to form two sets of film strips each of which has a laser scribed capacitor ... | 10/28/1980 |
| 4201905 | Laser cutting head attachment for punch presses A turret punch machine tool equipped with controlled automatic x-y axis workpiece movement mechanisms for moving the workpiece over a stationary work table section adjacent a punching station is provided with a separate laser beam generator and with a too... | 05/06/1980 |
| 4174476 | Laser cutting of tubular articles Method and apparatus for cutting tubular material with two separate laser beams having a constant power ratio by using a laser source having a single output beam of random polarization. A beamsplitter is positioned so that the output of a laser source str... | 11/13/1979 |
| 4161808 | Machine for cutting continuous sheet material A machine for longitudinally cutting and/or grooving continuous sheet material comprises first and second stations each of which has means for cutting and/or grooving the sheet material, the stations being spaced apart longitudinally in a direction along ... | 07/24/1979 |
| 4160894 | Method and apparatus for the focal form cutting of a moving web of material by a laser beam A desired pattern to be cut from a moving web of material by a focused laser beam is traced by eccentrically mounting the focal lens 3 in a rotatable carrier 4. The lens may also be radially displaceable (FIG. 3), inclined and rotatable (FIG. 4), doubly r... | 07/10/1979 |
| 4149918 | Method and apparatus for producing safety belts with reduced kerfs This invention relates to a method and apparatus for reducing the sizes of the kerfs of safety belts made from severed webs of woven synthetic filaments such as polyamide or polyester filaments. In the preferred method, a laser beam sweeps across the belt... | 04/17/1979 |
| 4143660 | Method of surgery making use of laser emission and an apparatus for accomplishing same A method whereby a hollow organ is compressed from two sides along an intended line of section after which simultaneous dissection and welding of the edges of the cavities formed is carried out by moving a focused laser beam along said line. The degree of... | 03/13/1979 |
| 4126136 | Photocoagulating scalpel system A Photocoagulating scalpel system including a scalpel having a sharp, transparent blade for forming an incision, and a laser optically coupled to the blade for coagulating blood adjacent the incision. Laser radiation is transported to the blade through a ... | 11/21/1978 |
| 4125757 | Apparatus and method for laser cutting A laser beam is directed towards a workpiece immersed beneath the surface of a liquid coolant. An exothermically reactive gas is directed through the liquid coolant to the workpiece under sufficient pressure and velocity to sweep away a sufficient amount ... | 11/14/1978 |
| 4084988 | Method and apparatus for making instantaneous scarfing cuts An instantaneous scarfing cut on the surface of a metal workpiece can be made by: (a) causing relative motion between the workpiece and a stream of scarfing oxygen gas, and simultaneously therewith (1) impinging at least one laser beam on the work surface so a... | 04/18/1978 |
| 4078165 | Semi-automatic feed laser apparatus A semi-automatic feed laser apparatus includes a laser beam focused on a workpiece affixed to a pattern template which is urged by the operator against rotatable guide means rotating at a predetermined rate to feed the workpiece smoothly under the laser y... | 03/07/1978 |
| 4049945 | Method of and apparatus for cutting material to shape from a moving web by burning A method and apparatus for cutting a predetermined pattern in a moving web of material, such as paper, cardboard or the like is disclosed wherein a laser beam is deflected by a series of pivotable mirrors. The pivoting of the mirrors is controlled so as t... | 09/20/1977 |
| 4048464 | Method of and means for cutting hose for high pressure hydraulic systems A method of and means for cutting hose of the type designed for use in high pressure hydraulic systems is disclosed in which the impingement of a high power laser beam is moved about the periphery of the hose in a plurality of passes. An embodiment is des... | 09/13/1977 |
| 4045201 | Method and apparatus for subdividing a gas filled glass tube An elongated glass tube light source containing a luminophor and a radioactive gas is subdivided into a plurality of light sources by a plurality of laser beams directed at the tube at spaced points along the length of the tube. The laser beams are scanne... | 08/30/1977 |
| 4044936 | Glass tube cutting Apparatus for cutting glass tubing transverse to its length comprises a laser, an optical system for directing the laser along a full circumferential line around the tubing without rotating the tubing and means for forming a point of weakness on the circu... | 08/30/1977 |
| 4039799 | Device for cutting sheet material A device for cutting layers of textile material by means of a thermal cutting beam, such as a laser beam, in which the material is supported on a perforated plate which allows dissipation of any heat imparted thereto. The plate is detachably mounted on ve... | 08/02/1977 |
| 4031351 | High energy laser beam cutting method and apparatus Method and device enabling the injecting in the cutting groove of a gas coming from a nozzle at a supersonic speed, brought to a temperature which may probably be very high. A device for injecting an auxiliary gas ensures the protection of the front lens ... | 06/21/1977 |
| 4010345 | Gas delivery means for cutting with laser radiation Gas delivery means for providing a flow of gas to the kerf in a workpiece which is being cut by a beam of laser radiation is disclosed. The distribution means consists of a thin wafer which is placed in the path of the cutting beam adjacent to the workpie... | 03/01/1977 |
| 4000391 | Nuclear reactor fuel element splitter A method and apparatus are disclosed for removing nuclear fuel from a clad fuel element. The fuel element is power driven past laser beams which simultaneously cut the cladding lengthwise into at least two longitudinal pieces. The axially cut lengths of c... | 12/28/1976 |
| 3981230 | Apparatus for thermally machining thermoplastics sheet An apparatus for thermally machining thermoplastics sheet, i.e. cutting and/or welding the sheet, uses a laser. The sheet is tensioned over a backing member of a suitable refractory material such as fused silica. The laser beam is focussed on the sheet ov... | 09/21/1976 |
| 3960624 | Method of fabricating tubular bodies This disclosure relates to a method of fabricating tubular bodies having at least one closed end by advancing material along a predetermined path of travel in a predetermined direction, forming the material into a tube during its advancement, placing a cl... | 06/01/1976 |
| 3935419 | Severing of glass or vitrocrystalline bodies In the severing of bodies of glass or vitrocrystalline materials by the application of a laser beam, the severing operation is improved by employing a beam of which at least the predominent wavelength is such that at least 10% of the beam energy penetrate... | 01/27/1976 |
