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Patent # Description
US-4,839,523 Ion implantation apparatus for semiconductor manufacture
An ion implantation apparatus which is suited for manufacturing semiconductor devices and which is particularly suited for implanting double charged ions into...
US-4,839,522 Reflective method and apparatus for curing ink
Disclosed is an apparatus for curing ink on the exterior surface of an article preferably with ultraviolet radiation. A conveyor transports the article along an...
US-4,839,521 Treatment chamber for the photopolymerization of dental plastics
A treatment chamber as an accessory device for an illuminator for the photopolymerization of dental plastics. The chamber is both light-tight and has at least...
US-4,839,520 Production of pulsed electron beams
Apparatus for producing a pulsed electron beam, particularly adapted for inspecting integrated circuits, includes a beam scanner (10) for causing a continuous...
US-4,839,519 Temperature measuring
A system for measuring the temperature of an item comprises means for supplying a beam of neutrons to expose the item to the beam; means for monitoring the...
US-4,839,518 Apparatuses and methods for laser reading of thermoluminescent phosphors
Apparatuses and methods for rapidly reading thermoluminescent phosphors to determine the amount of luminescent energy stored therein. The stored luminescent...
US-4,839,517 Roll electrode and device for pretreating the surfaces of film webs by means of electrical corona discharge
An apparatus to increase the adhesive properties of an electrode material embedded in a synthetic resin matrix of a conductive layer and also to improve the...
US-4,839,516 Method for quantitative analysis of core samples
A method for quantitative mineral analysis of core samples obtained from oil and gas wells is disclosed. The method includes the steps of grinding the sample to...
US-4,839,515 Fiber optic transducer with fiber-to-fiber edge coupling
A passive transducer apparatus and method of use for producing a useful output light signal in response to a sensed condition. The sensed condition varies the...
US-4,839,514 Optical reader with shading correcting means
A reading surface of a document is illuminated by a light source, and a light beam reflected on the reading surface is reflected on a reflecting mirror. Then,...
US-4,839,513 Ultraviolet irradiation device
An ultraviolet-radiation emitting device comprises a housing having an opening in one side; a reflector positioned in such housing with its reflecting surface...
US-4,839,512 Tactile sensing method and apparatus having grids as a means to detect a physical parameter
Apparatus for sensing locations and magnitudes of forces applied on a surface includes a grid comprised of energy input devices running in one direction and...
US-4,839,511 Enhanced sensitivity photodetector having a multi-layered, sandwich-type construction
A photoconductive member is provided with increased sensitivity to radiation incident thereupon and with increased photo-yield in response thereto by means of a...
US-4,839,510 Optical sensor including shortcircuit protection having notched electrode regions
In an optical sensor, there is a risk that a short-circuit occurs in a gap between opposite electrodes on a photoconductive body. A pair of band-shaped...
US-4,839,509 Connector device for connecting IC card to reading and/or writing apparatus
A connector device for electrically connecting an IC card to a reading and/or writing apparatus. A first guide defining a transport path for the IC card is...
US-4,839,508 Card reader
A magnetic card reader for reading data for electronic locks or the like is provided. The reader "reads" data both when the card is inserted and upon withdrawal,...
US-4,839,507 Method and arrangement for validating coupons
A method and machine for verifying or validating coupons wherein the method comprises passing at least two juxtaposed coupons, each of which has a bar code...
US-4,839,506 IC card identification system including pin-check time means
An IC (integrated circuit) card identification system includes a comparator for comparing a first identification number entered by a cardholder with a second...
US-4,839,505 Apparatus and method for storing and retrieving articles
A machine from which a customer can selectably purchase or rent a videocassette or other such product, e.g., blank videotapes, music disks, and the like, or...
US-4,839,504 IC card system compatible with bank account system
In an IC card system, a first file corresponding to a normal bank account and a second file corresponding to an IC card account are provided for each IC...
US-4,839,503 Controlling the simmering or cooking time in a cooking vessel
The invention relates to controlling the simmering or cooking time in a cooking vessel which can be heated by means of an electrical cooking plate with a control...
US-4,839,502 Cooking apparatus
An oven that cooks foodstuffs containing water at temperatures up to 600 degrees Fahrenheit with longwave radiation generated by masking a cooking volume from...
US-4,839,501 Cartridge soldering iron
Provided is a cartridge soldering iron having a hollow cylindrical handle, incorporating an internal coaxial socket assembly, a connection to a power supply, and...
US-4,839,500 Covering for wall, ceiling or floor linings
A compound covering element for wall, ceiling or floor linings includes a ceramic tile provided with an electrically conductive coating on its back side which is...
US-4,839,499 System for supplying power to different cutting torches
The housing of the cutting torch power supply has an opening and a drawer which can be slid into and out of the opening. The back wall of the drawer carries a...
US-4,839,498 Electrically heated fish tank unit
An electrically heated fish tank unit includes a fish tank having a bottom standing on a frame having an upper surface with a central opening. A one piece flat...
US-4,839,497 Drilling apparatus and method
An apparatus and method for drilling holes in printed wiring boards formed of a plurality materials wherein two or more laser beams are combined along a common...
US-4,839,496 Laser welding device for welding hollow sections and flat sections
The laser welding device for welding hollow sections (1) and flat sections which are to be welded flush to one another, having a detection device (7) for one or...
US-4,839,495 Laser beam welding apparatus for an inner circumferential surface of a tube
An improved laser beam welding apparatus for an inner circumferential surface of a tube is disclosed herein, which apparatus comprises an elongated flexible tube...
US-4,839,494 Electromagnetic container sealing apparatus
A sealing apparatus is described for use with a container having an open end with a sealing rim therearound, a closure on the open end and a membrane in the...
US-4,839,493 Arrangement for machining workpieces by means of a laser beam by building up a plasma that is to be kept within...
In machining a workpiece, maximal absorption of laser irradiation in the workpiece is achieved by a minimal interference by optical back-coupling and plasma...
US-4,839,492 Plasma scalpel
In a device of the plasma scalpel type (40, 41) including at least two spaced-apart electrodes (21, 22) subjected to electrical potential differences such that...
US-4,839,491 Method for forming a metal cylindrical container
An improved method of forming a cylindrical metal can body is disclosed. The improvement includes forming special ears for the bale and orienting the ears in a...
US-4,839,490 Gas shielded metal arc welding torch for limited access welding
A gas shielded metal arc welding torch for joining internal walls in a workpiece such as a compressor impeller having limited access to the internal joint to be...
US-4,839,489 Trailer shield assembly for a welding torch
A trailer shield assembly (10) having a housing (24) with an open lower side and a welding torch (12) mounted so that a welding tip portion (48) of the torch...
US-4,839,488 Electric discharge machine using a ceramic filter to filter the working fluid
An electric discharge machine includes a clean work fluid tank for storing a clean work fluid and a work tank connected to the clean work fluid tank for...
US-4,839,487 Wire electrode for wire-cut electrical discharge machining
A wire electrode for use in wire-cut electrical discharge machining which can be used under a high machining tension and which produces no appreciable deposit on...
US-4,839,486 Microwave oven damper mechanism activated by a shape memory alloy
A damper mechanism of a microwave oven using shape memory alloy spring elements for opening and/or closing the damper which, in turn, control the flow of air...
US-4,839,485 Apparatus for the uniform and rapid heating of foodstuffs
An apparatus is provided for the uniform and rapid heating of foodstuffs, usually for pasteurization and sterilization purposes, by means of microwave energy....
US-4,839,484 Gruel cooker for microwave ranges
A rice gruel cooker suited for heating in a microwave range includes a bowl, a perforated rice container placed in the bowl and having a space for accommodatng...
US-4,839,483 Modular watertight switch for use in personal care appliances
A modular water proof switch which can be easily assembled, having a housing and cover secured together with complementary interfitting latches, a slide switch...
US-4,839,482 Gas-blast breaker
The gas-blast breaker exhibits two contact members (1, 2) which are located in a housing filled with insulating gas and can be brought into and out of engagement...
US-4,839,481 Vacuum interrupter
A cylindrical coil electrode (10) incorporated in a vacuum interrupter comprises a cylindrical body (12) having an opening at one end thereof, three electrical...
US-4,839,480 Vehicle sensing device
A vehicle sensing device comprises an electrically insulating elongate carrier (1) with two electrical conductors (2,3) extending longitudinally of the carrier...
US-4,839,479 Article using shape-memory alloy to improve and/or control the speed of recovery
An article in the form of a projectile, a shock-sensitive switch or a sabot having an active component of shape-memory alloy which exhibits the shape-memory...
US-4,839,478 Push button safety switch
A push button safety switch. A pair of switch terminals are mounted within a housing which also carries a plunger for movement relative to the housing. The...
US-4,839,477 Controller having interchangeable vacuum or air break contactors and having easily serviced parts
The inventions solves the problem of convenient mounting of parts of controllers, and solves the problem of interchangeability of vacuum and air break contactors...
US-4,839,476 Switch operating mechanism
In a switch operating mechanism in which the elastic force of a spring energized is transmitted through a link mechanism to achieve a switch opening or closing...
US-4,839,475 Modular switch assembly having wiping contacts
A switch assembly for a geared limit switch for valve actuators is formed from aligned switch modules. The switch modules includes a pair of switch units, each...
US-4,839,474 Switches and keyboards
A low profile switch or keypad has one or more touch buttons of circular or polygonal shape in plan formed integrally with and raised from a surrounding membrane...
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